191007045SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 286470930SIngo Molnar /* 386470930SIngo Molnar * builtin-stat.c 486470930SIngo Molnar * 586470930SIngo Molnar * Builtin stat command: Give a precise performance counters summary 686470930SIngo Molnar * overview about any workload, CPU or specific PID. 786470930SIngo Molnar * 886470930SIngo Molnar * Sample output: 986470930SIngo Molnar 102cba3ffbSIngo Molnar $ perf stat ./hackbench 10 1186470930SIngo Molnar 122cba3ffbSIngo Molnar Time: 0.118 1386470930SIngo Molnar 142cba3ffbSIngo Molnar Performance counter stats for './hackbench 10': 1586470930SIngo Molnar 162cba3ffbSIngo Molnar 1708.761321 task-clock # 11.037 CPUs utilized 172cba3ffbSIngo Molnar 41,190 context-switches # 0.024 M/sec 182cba3ffbSIngo Molnar 6,735 CPU-migrations # 0.004 M/sec 192cba3ffbSIngo Molnar 17,318 page-faults # 0.010 M/sec 202cba3ffbSIngo Molnar 5,205,202,243 cycles # 3.046 GHz 212cba3ffbSIngo Molnar 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle 222cba3ffbSIngo Molnar 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle 232cba3ffbSIngo Molnar 2,603,501,247 instructions # 0.50 insns per cycle 242cba3ffbSIngo Molnar # 1.48 stalled cycles per insn 252cba3ffbSIngo Molnar 484,357,498 branches # 283.455 M/sec 262cba3ffbSIngo Molnar 6,388,934 branch-misses # 1.32% of all branches 272cba3ffbSIngo Molnar 282cba3ffbSIngo Molnar 0.154822978 seconds time elapsed 2986470930SIngo Molnar 3086470930SIngo Molnar * 312cba3ffbSIngo Molnar * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 3286470930SIngo Molnar * 3386470930SIngo Molnar * Improvements and fixes by: 3486470930SIngo Molnar * 3586470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 3686470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 3786470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 3886470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 3986470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 406e750a8fSJaswinder Singh Rajput * Jaswinder Singh Rajput <jaswinder@kernel.org> 4186470930SIngo Molnar */ 4286470930SIngo Molnar 4386470930SIngo Molnar #include "builtin.h" 44c1a604dfSArnaldo Carvalho de Melo #include "perf.h" 45f14d5707SArnaldo Carvalho de Melo #include "util/cgroup.h" 464b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 4786470930SIngo Molnar #include "util/parse-events.h" 484cabc3d1SAndi Kleen #include "util/pmu.h" 498f28827aSFrederic Weisbecker #include "util/event.h" 50361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 5169aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 528f28827aSFrederic Weisbecker #include "util/debug.h" 53a5d243d0SIngo Molnar #include "util/color.h" 540007eceaSXiao Guangrong #include "util/stat.h" 5560666c63SLiming Wang #include "util/header.h" 56a12b51c4SPaul Mackerras #include "util/cpumap.h" 57fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 58d809560bSJiri Olsa #include "util/counts.h" 59687986bbSKan Liang #include "util/topdown.h" 604979d0c7SJiri Olsa #include "util/session.h" 61ba6039b6SJiri Olsa #include "util/tool.h" 62a067558eSArnaldo Carvalho de Melo #include "util/string2.h" 63b18f3e36SAndi Kleen #include "util/metricgroup.h" 64ea49e01cSArnaldo Carvalho de Melo #include "util/synthetic-events.h" 65aeb00b1aSArnaldo Carvalho de Melo #include "util/target.h" 66f3711020SArnaldo Carvalho de Melo #include "util/time-utils.h" 679660e08eSJiri Olsa #include "util/top.h" 684804e011SAndi Kleen #include "util/affinity.h" 6970943490SStephane Eranian #include "util/pfm.h" 70ba6039b6SJiri Olsa #include "asm/bug.h" 7186470930SIngo Molnar 72bd48c63eSArnaldo Carvalho de Melo #include <linux/time64.h> 737f7c536fSArnaldo Carvalho de Melo #include <linux/zalloc.h> 7444b1e60aSAndi Kleen #include <api/fs/fs.h> 75a43783aeSArnaldo Carvalho de Melo #include <errno.h> 769607ad3aSArnaldo Carvalho de Melo #include <signal.h> 771f16c575SPeter Zijlstra #include <stdlib.h> 7886470930SIngo Molnar #include <sys/prctl.h> 79fd20e811SArnaldo Carvalho de Melo #include <inttypes.h> 805af52b51SStephane Eranian #include <locale.h> 81e3b03b6cSAndi Kleen #include <math.h> 827a8ef4c4SArnaldo Carvalho de Melo #include <sys/types.h> 837a8ef4c4SArnaldo Carvalho de Melo #include <sys/stat.h> 844208735dSArnaldo Carvalho de Melo #include <sys/wait.h> 857a8ef4c4SArnaldo Carvalho de Melo #include <unistd.h> 860ce2da14SJiri Olsa #include <sys/time.h> 870ce2da14SJiri Olsa #include <sys/resource.h> 886ef81c55SMamatha Inamdar #include <linux/err.h> 8986470930SIngo Molnar 903052ba56SArnaldo Carvalho de Melo #include <linux/ctype.h> 91453fa030SJiri Olsa #include <perf/evlist.h> 923d689ed6SArnaldo Carvalho de Melo 93d7470b6aSStephane Eranian #define DEFAULT_SEPARATOR " " 94daefd0bcSKan Liang #define FREEZE_ON_SMI_PATH "devices/cpu/freeze_on_smi" 95d7470b6aSStephane Eranian 96d4f63a47SJiri Olsa static void print_counters(struct timespec *ts, int argc, const char **argv); 9713370a9bSStephane Eranian 984cabc3d1SAndi Kleen /* Default events used for perf stat -T */ 99a454742cSJiri Olsa static const char *transaction_attrs = { 100a454742cSJiri Olsa "task-clock," 1014cabc3d1SAndi Kleen "{" 1024cabc3d1SAndi Kleen "instructions," 1034cabc3d1SAndi Kleen "cycles," 1044cabc3d1SAndi Kleen "cpu/cycles-t/," 1054cabc3d1SAndi Kleen "cpu/tx-start/," 1064cabc3d1SAndi Kleen "cpu/el-start/," 1074cabc3d1SAndi Kleen "cpu/cycles-ct/" 1084cabc3d1SAndi Kleen "}" 1094cabc3d1SAndi Kleen }; 1104cabc3d1SAndi Kleen 1114cabc3d1SAndi Kleen /* More limited version when the CPU does not have all events. */ 112a454742cSJiri Olsa static const char * transaction_limited_attrs = { 113a454742cSJiri Olsa "task-clock," 1144cabc3d1SAndi Kleen "{" 1154cabc3d1SAndi Kleen "instructions," 1164cabc3d1SAndi Kleen "cycles," 1174cabc3d1SAndi Kleen "cpu/cycles-t/," 1184cabc3d1SAndi Kleen "cpu/tx-start/" 1194cabc3d1SAndi Kleen "}" 1204cabc3d1SAndi Kleen }; 1214cabc3d1SAndi Kleen 12244b1e60aSAndi Kleen static const char * topdown_attrs[] = { 12344b1e60aSAndi Kleen "topdown-total-slots", 12444b1e60aSAndi Kleen "topdown-slots-retired", 12544b1e60aSAndi Kleen "topdown-recovery-bubbles", 12644b1e60aSAndi Kleen "topdown-fetch-bubbles", 12744b1e60aSAndi Kleen "topdown-slots-issued", 12844b1e60aSAndi Kleen NULL, 12944b1e60aSAndi Kleen }; 13044b1e60aSAndi Kleen 13155c36a9fSAndi Kleen static const char *topdown_metric_attrs[] = { 13255c36a9fSAndi Kleen "slots", 13355c36a9fSAndi Kleen "topdown-retiring", 13455c36a9fSAndi Kleen "topdown-bad-spec", 13555c36a9fSAndi Kleen "topdown-fe-bound", 13655c36a9fSAndi Kleen "topdown-be-bound", 13755c36a9fSAndi Kleen NULL, 13855c36a9fSAndi Kleen }; 13955c36a9fSAndi Kleen 140daefd0bcSKan Liang static const char *smi_cost_attrs = { 141daefd0bcSKan Liang "{" 142daefd0bcSKan Liang "msr/aperf/," 143daefd0bcSKan Liang "msr/smi/," 144daefd0bcSKan Liang "cycles" 145daefd0bcSKan Liang "}" 146daefd0bcSKan Liang }; 147daefd0bcSKan Liang 14863503dbaSJiri Olsa static struct evlist *evsel_list; 149361c99a6SArnaldo Carvalho de Melo 150602ad878SArnaldo Carvalho de Melo static struct target target = { 15177a6f014SNamhyung Kim .uid = UINT_MAX, 15277a6f014SNamhyung Kim }; 15342202dd5SIngo Molnar 154c1a1f5d9SJiri Olsa #define METRIC_ONLY_LEN 20 155c1a1f5d9SJiri Olsa 156d07f0b12SStephane Eranian static volatile pid_t child_pid = -1; 1572cba3ffbSIngo Molnar static int detailed_run = 0; 1584cabc3d1SAndi Kleen static bool transaction_run; 15944b1e60aSAndi Kleen static bool topdown_run = false; 160daefd0bcSKan Liang static bool smi_cost = false; 161daefd0bcSKan Liang static bool smi_reset = false; 162d7470b6aSStephane Eranian static int big_num_opt = -1; 16343bece79SLin Ming static bool group = false; 1641f16c575SPeter Zijlstra static const char *pre_cmd = NULL; 1651f16c575SPeter Zijlstra static const char *post_cmd = NULL; 1661f16c575SPeter Zijlstra static bool sync_run = false; 167a7e191c3SFrederik Deweerdt static bool forever = false; 16844b1e60aSAndi Kleen static bool force_metric_only = false; 16913370a9bSStephane Eranian static struct timespec ref_time; 170e0547311SJiri Olsa static bool append_file; 171db06a269Syuzhoujian static bool interval_count; 172e0547311SJiri Olsa static const char *output_name; 173e0547311SJiri Olsa static int output_fd; 1745af52b51SStephane Eranian 1754979d0c7SJiri Olsa struct perf_stat { 1764979d0c7SJiri Olsa bool record; 1778ceb41d7SJiri Olsa struct perf_data data; 1784979d0c7SJiri Olsa struct perf_session *session; 1794979d0c7SJiri Olsa u64 bytes_written; 180ba6039b6SJiri Olsa struct perf_tool tool; 1811975d36eSJiri Olsa bool maps_allocated; 182f854839bSJiri Olsa struct perf_cpu_map *cpus; 1839749b90eSJiri Olsa struct perf_thread_map *threads; 18489af4e05SJiri Olsa enum aggr_mode aggr_mode; 1854979d0c7SJiri Olsa }; 1864979d0c7SJiri Olsa 1874979d0c7SJiri Olsa static struct perf_stat perf_stat; 1884979d0c7SJiri Olsa #define STAT_RECORD perf_stat.record 1894979d0c7SJiri Olsa 19060666c63SLiming Wang static volatile int done = 0; 19160666c63SLiming Wang 192421a50f3SJiri Olsa static struct perf_stat_config stat_config = { 193421a50f3SJiri Olsa .aggr_mode = AGGR_GLOBAL, 194711a572eSJiri Olsa .scale = true, 195df4f7b4dSJiri Olsa .unit_width = 4, /* strlen("unit") */ 196d97ae04bSJiri Olsa .run_count = 1, 197ee1760e2SJiri Olsa .metric_only_len = METRIC_ONLY_LEN, 19826893a60SJiri Olsa .walltime_nsecs_stats = &walltime_nsecs_stats, 19934ff0866SJiri Olsa .big_num = true, 20027e9769aSAlexey Budankov .ctl_fd = -1, 20127e9769aSAlexey Budankov .ctl_fd_ack = -1 202421a50f3SJiri Olsa }; 203421a50f3SJiri Olsa 204a9a17902SJiri Olsa static bool cpus_map_matched(struct evsel *a, struct evsel *b) 205a9a17902SJiri Olsa { 206a9a17902SJiri Olsa if (!a->core.cpus && !b->core.cpus) 207a9a17902SJiri Olsa return true; 208a9a17902SJiri Olsa 209a9a17902SJiri Olsa if (!a->core.cpus || !b->core.cpus) 210a9a17902SJiri Olsa return false; 211a9a17902SJiri Olsa 212a9a17902SJiri Olsa if (a->core.cpus->nr != b->core.cpus->nr) 213a9a17902SJiri Olsa return false; 214a9a17902SJiri Olsa 215a9a17902SJiri Olsa for (int i = 0; i < a->core.cpus->nr; i++) { 216a9a17902SJiri Olsa if (a->core.cpus->map[i] != b->core.cpus->map[i]) 217a9a17902SJiri Olsa return false; 218a9a17902SJiri Olsa } 219a9a17902SJiri Olsa 220a9a17902SJiri Olsa return true; 221a9a17902SJiri Olsa } 222a9a17902SJiri Olsa 223a9a17902SJiri Olsa static void evlist__check_cpu_maps(struct evlist *evlist) 224a9a17902SJiri Olsa { 225a9a17902SJiri Olsa struct evsel *evsel, *pos, *leader; 226a9a17902SJiri Olsa char buf[1024]; 227a9a17902SJiri Olsa 228a9a17902SJiri Olsa evlist__for_each_entry(evlist, evsel) { 229a9a17902SJiri Olsa leader = evsel->leader; 230a9a17902SJiri Olsa 231a9a17902SJiri Olsa /* Check that leader matches cpus with each member. */ 232a9a17902SJiri Olsa if (leader == evsel) 233a9a17902SJiri Olsa continue; 234a9a17902SJiri Olsa if (cpus_map_matched(leader, evsel)) 235a9a17902SJiri Olsa continue; 236a9a17902SJiri Olsa 237a9a17902SJiri Olsa /* If there's mismatch disable the group and warn user. */ 238a9a17902SJiri Olsa WARN_ONCE(1, "WARNING: grouped events cpus do not match, disabling group:\n"); 239a9a17902SJiri Olsa evsel__group_desc(leader, buf, sizeof(buf)); 240a9a17902SJiri Olsa pr_warning(" %s\n", buf); 241a9a17902SJiri Olsa 242a9a17902SJiri Olsa if (verbose) { 243a9a17902SJiri Olsa cpu_map__snprint(leader->core.cpus, buf, sizeof(buf)); 244a9a17902SJiri Olsa pr_warning(" %s: %s\n", leader->name, buf); 245a9a17902SJiri Olsa cpu_map__snprint(evsel->core.cpus, buf, sizeof(buf)); 246a9a17902SJiri Olsa pr_warning(" %s: %s\n", evsel->name, buf); 247a9a17902SJiri Olsa } 248a9a17902SJiri Olsa 249a9a17902SJiri Olsa for_each_group_evsel(pos, leader) { 250a9a17902SJiri Olsa pos->leader = pos; 251a9a17902SJiri Olsa pos->core.nr_members = 0; 252a9a17902SJiri Olsa } 253a9a17902SJiri Olsa evsel->leader->core.nr_members = 0; 254a9a17902SJiri Olsa } 255a9a17902SJiri Olsa } 256a9a17902SJiri Olsa 25713370a9bSStephane Eranian static inline void diff_timespec(struct timespec *r, struct timespec *a, 25813370a9bSStephane Eranian struct timespec *b) 25913370a9bSStephane Eranian { 26013370a9bSStephane Eranian r->tv_sec = a->tv_sec - b->tv_sec; 26113370a9bSStephane Eranian if (a->tv_nsec < b->tv_nsec) { 262310ebb93SArnaldo Carvalho de Melo r->tv_nsec = a->tv_nsec + NSEC_PER_SEC - b->tv_nsec; 26313370a9bSStephane Eranian r->tv_sec--; 26413370a9bSStephane Eranian } else { 26513370a9bSStephane Eranian r->tv_nsec = a->tv_nsec - b->tv_nsec ; 26613370a9bSStephane Eranian } 26713370a9bSStephane Eranian } 26813370a9bSStephane Eranian 269254ecbc7SJiri Olsa static void perf_stat__reset_stats(void) 270254ecbc7SJiri Olsa { 27156739444SJin Yao int i; 27256739444SJin Yao 273254ecbc7SJiri Olsa perf_evlist__reset_stats(evsel_list); 274f87027b9SJiri Olsa perf_stat__reset_shadow_stats(); 27556739444SJin Yao 27656739444SJin Yao for (i = 0; i < stat_config.stats_num; i++) 27756739444SJin Yao perf_stat__reset_shadow_per_stat(&stat_config.stats[i]); 2781eda3b21SJiri Olsa } 2791eda3b21SJiri Olsa 2808b99b1a4SJiri Olsa static int process_synthesized_event(struct perf_tool *tool __maybe_unused, 2814979d0c7SJiri Olsa union perf_event *event, 2824979d0c7SJiri Olsa struct perf_sample *sample __maybe_unused, 2834979d0c7SJiri Olsa struct machine *machine __maybe_unused) 2844979d0c7SJiri Olsa { 2858ceb41d7SJiri Olsa if (perf_data__write(&perf_stat.data, event, event->header.size) < 0) { 2868b99b1a4SJiri Olsa pr_err("failed to write perf data, error: %m\n"); 2878b99b1a4SJiri Olsa return -1; 2888b99b1a4SJiri Olsa } 2898b99b1a4SJiri Olsa 2908b99b1a4SJiri Olsa perf_stat.bytes_written += event->header.size; 2918b99b1a4SJiri Olsa return 0; 2924979d0c7SJiri Olsa } 2934979d0c7SJiri Olsa 2941975d36eSJiri Olsa static int write_stat_round_event(u64 tm, u64 type) 2957aad0c32SJiri Olsa { 2961975d36eSJiri Olsa return perf_event__synthesize_stat_round(NULL, tm, type, 2977aad0c32SJiri Olsa process_synthesized_event, 2987aad0c32SJiri Olsa NULL); 2997aad0c32SJiri Olsa } 3007aad0c32SJiri Olsa 3017aad0c32SJiri Olsa #define WRITE_STAT_ROUND_EVENT(time, interval) \ 3027aad0c32SJiri Olsa write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval) 3037aad0c32SJiri Olsa 3048cd36f3eSJiri Olsa #define SID(e, x, y) xyarray__entry(e->core.sample_id, x, y) 3055a6ea81bSJiri Olsa 306ddc6999eSArnaldo Carvalho de Melo static int evsel__write_stat_event(struct evsel *counter, u32 cpu, u32 thread, 3075a6ea81bSJiri Olsa struct perf_counts_values *count) 3085a6ea81bSJiri Olsa { 3095a6ea81bSJiri Olsa struct perf_sample_id *sid = SID(counter, cpu, thread); 3105a6ea81bSJiri Olsa 3115a6ea81bSJiri Olsa return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count, 3125a6ea81bSJiri Olsa process_synthesized_event, NULL); 3135a6ea81bSJiri Olsa } 3145a6ea81bSJiri Olsa 31532dcd021SJiri Olsa static int read_single_counter(struct evsel *counter, int cpu, 316f0fbb114SAndi Kleen int thread, struct timespec *rs) 317f0fbb114SAndi Kleen { 318f0fbb114SAndi Kleen if (counter->tool_event == PERF_TOOL_DURATION_TIME) { 319f0fbb114SAndi Kleen u64 val = rs->tv_nsec + rs->tv_sec*1000000000ULL; 320f0fbb114SAndi Kleen struct perf_counts_values *count = 321f0fbb114SAndi Kleen perf_counts(counter->counts, cpu, thread); 322f0fbb114SAndi Kleen count->ena = count->run = val; 323f0fbb114SAndi Kleen count->val = val; 324f0fbb114SAndi Kleen return 0; 325f0fbb114SAndi Kleen } 326ea089692SArnaldo Carvalho de Melo return evsel__read_counter(counter, cpu, thread); 327f0fbb114SAndi Kleen } 328f0fbb114SAndi Kleen 329f5b4a9c3SStephane Eranian /* 330f5b4a9c3SStephane Eranian * Read out the results of a single counter: 331f5b4a9c3SStephane Eranian * do not aggregate counts across CPUs in system-wide mode 332f5b4a9c3SStephane Eranian */ 3334b49ab70SAndi Kleen static int read_counter_cpu(struct evsel *counter, struct timespec *rs, int cpu) 334f5b4a9c3SStephane Eranian { 335a2f354e3SJiri Olsa int nthreads = perf_thread_map__nr(evsel_list->core.threads); 3364b49ab70SAndi Kleen int thread; 337f5b4a9c3SStephane Eranian 3383b4331d9SSuzuki K. Poulose if (!counter->supported) 3393b4331d9SSuzuki K. Poulose return -ENOENT; 3403b4331d9SSuzuki K. Poulose 341648b5af3SJiri Olsa if (counter->core.system_wide) 3429bf1a529SJiri Olsa nthreads = 1; 3439bf1a529SJiri Olsa 3449bf1a529SJiri Olsa for (thread = 0; thread < nthreads; thread++) { 3453b3eb044SJiri Olsa struct perf_counts_values *count; 3463b3eb044SJiri Olsa 3473b3eb044SJiri Olsa count = perf_counts(counter->counts, cpu, thread); 34882bf311eSJiri Olsa 34982bf311eSJiri Olsa /* 35082bf311eSJiri Olsa * The leader's group read loads data into its group members 351ea089692SArnaldo Carvalho de Melo * (via evsel__read_counter()) and sets their count->loaded. 35282bf311eSJiri Olsa */ 353df1d6856SJiri Olsa if (!perf_counts__is_loaded(counter->counts, cpu, thread) && 354f0fbb114SAndi Kleen read_single_counter(counter, cpu, thread, rs)) { 355db49a717SStephane Eranian counter->counts->scaled = -1; 356db49a717SStephane Eranian perf_counts(counter->counts, cpu, thread)->ena = 0; 357db49a717SStephane Eranian perf_counts(counter->counts, cpu, thread)->run = 0; 358c52b12edSArnaldo Carvalho de Melo return -1; 359db49a717SStephane Eranian } 3605a6ea81bSJiri Olsa 361df1d6856SJiri Olsa perf_counts__set_loaded(counter->counts, cpu, thread, false); 36282bf311eSJiri Olsa 3635a6ea81bSJiri Olsa if (STAT_RECORD) { 364ddc6999eSArnaldo Carvalho de Melo if (evsel__write_stat_event(counter, cpu, thread, count)) { 3655a6ea81bSJiri Olsa pr_err("failed to write stat event\n"); 3665a6ea81bSJiri Olsa return -1; 3675a6ea81bSJiri Olsa } 3685a6ea81bSJiri Olsa } 3690b1abbf4SAndi Kleen 3700b1abbf4SAndi Kleen if (verbose > 1) { 3710b1abbf4SAndi Kleen fprintf(stat_config.output, 3720b1abbf4SAndi Kleen "%s: %d: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", 3738ab2e96dSArnaldo Carvalho de Melo evsel__name(counter), 3740b1abbf4SAndi Kleen cpu, 3750b1abbf4SAndi Kleen count->val, count->ena, count->run); 3760b1abbf4SAndi Kleen } 377f5b4a9c3SStephane Eranian } 378c52b12edSArnaldo Carvalho de Melo 379c52b12edSArnaldo Carvalho de Melo return 0; 38086470930SIngo Molnar } 38186470930SIngo Molnar 382c7e5b328SJin Yao static int read_affinity_counters(struct timespec *rs) 383106a94a0SJiri Olsa { 38432dcd021SJiri Olsa struct evsel *counter; 3854b49ab70SAndi Kleen struct affinity affinity; 3864b49ab70SAndi Kleen int i, ncpus, cpu; 3874b49ab70SAndi Kleen 3884b49ab70SAndi Kleen if (affinity__setup(&affinity) < 0) 389c7e5b328SJin Yao return -1; 3904b49ab70SAndi Kleen 3914b49ab70SAndi Kleen ncpus = perf_cpu_map__nr(evsel_list->core.all_cpus); 3924b49ab70SAndi Kleen if (!target__has_cpu(&target) || target__has_per_thread(&target)) 3934b49ab70SAndi Kleen ncpus = 1; 3944b49ab70SAndi Kleen evlist__for_each_cpu(evsel_list, i, cpu) { 3954b49ab70SAndi Kleen if (i >= ncpus) 3964b49ab70SAndi Kleen break; 3974b49ab70SAndi Kleen affinity__set(&affinity, cpu); 398106a94a0SJiri Olsa 399e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evsel_list, counter) { 4004b49ab70SAndi Kleen if (evsel__cpu_iter_skip(counter, cpu)) 4014b49ab70SAndi Kleen continue; 4024b49ab70SAndi Kleen if (!counter->err) { 4034b49ab70SAndi Kleen counter->err = read_counter_cpu(counter, rs, 4044b49ab70SAndi Kleen counter->cpu_iter - 1); 4054b49ab70SAndi Kleen } 4064b49ab70SAndi Kleen } 4074b49ab70SAndi Kleen } 4084b49ab70SAndi Kleen affinity__cleanup(&affinity); 409c7e5b328SJin Yao return 0; 410c7e5b328SJin Yao } 411c7e5b328SJin Yao 412c7e5b328SJin Yao static void read_counters(struct timespec *rs) 413c7e5b328SJin Yao { 414c7e5b328SJin Yao struct evsel *counter; 415c7e5b328SJin Yao 416ee6a9614SJin Yao if (!stat_config.stop_read_counter && (read_affinity_counters(rs) < 0)) 417c7e5b328SJin Yao return; 4183b3eb044SJiri Olsa 4194b49ab70SAndi Kleen evlist__for_each_entry(evsel_list, counter) { 4204b49ab70SAndi Kleen if (counter->err) 4214b49ab70SAndi Kleen pr_debug("failed to read counter %s\n", counter->name); 4224b49ab70SAndi Kleen if (counter->err == 0 && perf_stat_process_counter(&stat_config, counter)) 4233b3eb044SJiri Olsa pr_warning("failed to process counter %s\n", counter->name); 4244b49ab70SAndi Kleen counter->err = 0; 425106a94a0SJiri Olsa } 426106a94a0SJiri Olsa } 427106a94a0SJiri Olsa 42872f02a94SJin Yao static int runtime_stat_new(struct perf_stat_config *config, int nthreads) 42972f02a94SJin Yao { 43072f02a94SJin Yao int i; 43172f02a94SJin Yao 43272f02a94SJin Yao config->stats = calloc(nthreads, sizeof(struct runtime_stat)); 43372f02a94SJin Yao if (!config->stats) 43472f02a94SJin Yao return -1; 43572f02a94SJin Yao 43672f02a94SJin Yao config->stats_num = nthreads; 43772f02a94SJin Yao 43872f02a94SJin Yao for (i = 0; i < nthreads; i++) 43972f02a94SJin Yao runtime_stat__init(&config->stats[i]); 44072f02a94SJin Yao 44172f02a94SJin Yao return 0; 44272f02a94SJin Yao } 44372f02a94SJin Yao 44472f02a94SJin Yao static void runtime_stat_delete(struct perf_stat_config *config) 44572f02a94SJin Yao { 44672f02a94SJin Yao int i; 44772f02a94SJin Yao 44872f02a94SJin Yao if (!config->stats) 44972f02a94SJin Yao return; 45072f02a94SJin Yao 45172f02a94SJin Yao for (i = 0; i < config->stats_num; i++) 45272f02a94SJin Yao runtime_stat__exit(&config->stats[i]); 45372f02a94SJin Yao 45472f02a94SJin Yao zfree(&config->stats); 45572f02a94SJin Yao } 45672f02a94SJin Yao 45772f02a94SJin Yao static void runtime_stat_reset(struct perf_stat_config *config) 45872f02a94SJin Yao { 45972f02a94SJin Yao int i; 46072f02a94SJin Yao 46172f02a94SJin Yao if (!config->stats) 46272f02a94SJin Yao return; 46372f02a94SJin Yao 46472f02a94SJin Yao for (i = 0; i < config->stats_num; i++) 46572f02a94SJin Yao perf_stat__reset_shadow_per_stat(&config->stats[i]); 46672f02a94SJin Yao } 46772f02a94SJin Yao 468ba411a95SJiri Olsa static void process_interval(void) 46913370a9bSStephane Eranian { 47013370a9bSStephane Eranian struct timespec ts, rs; 47113370a9bSStephane Eranian 47213370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ts); 47313370a9bSStephane Eranian diff_timespec(&rs, &ts, &ref_time); 47413370a9bSStephane Eranian 475197ba86fSJin Yao perf_stat__reset_shadow_per_stat(&rt_stat); 47672f02a94SJin Yao runtime_stat_reset(&stat_config); 477f0fbb114SAndi Kleen read_counters(&rs); 478f0fbb114SAndi Kleen 4797aad0c32SJiri Olsa if (STAT_RECORD) { 480bd48c63eSArnaldo Carvalho de Melo if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL)) 4817aad0c32SJiri Olsa pr_err("failed to write stat round event\n"); 4827aad0c32SJiri Olsa } 4837aad0c32SJiri Olsa 484b90f1333SAndi Kleen init_stats(&walltime_nsecs_stats); 485ea9eb1f4SJiri Olsa update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000ULL); 486d4f63a47SJiri Olsa print_counters(&rs, 0, NULL); 48713370a9bSStephane Eranian } 48813370a9bSStephane Eranian 489dece3a4dSAlexey Budankov static bool handle_interval(unsigned int interval, int *times) 490dece3a4dSAlexey Budankov { 491dece3a4dSAlexey Budankov if (interval) { 492dece3a4dSAlexey Budankov process_interval(); 493dece3a4dSAlexey Budankov if (interval_count && !(--(*times))) 494dece3a4dSAlexey Budankov return true; 495dece3a4dSAlexey Budankov } 496dece3a4dSAlexey Budankov return false; 497dece3a4dSAlexey Budankov } 498dece3a4dSAlexey Budankov 49967ccdecdSJiri Olsa static void enable_counters(void) 50041191688SAndi Kleen { 5012162b9c6SAlexey Budankov if (stat_config.initial_delay < 0) { 5022162b9c6SAlexey Budankov pr_info(EVLIST_DISABLED_MSG); 5032162b9c6SAlexey Budankov return; 5042162b9c6SAlexey Budankov } 5052162b9c6SAlexey Budankov 5062162b9c6SAlexey Budankov if (stat_config.initial_delay > 0) { 5072162b9c6SAlexey Budankov pr_info(EVLIST_DISABLED_MSG); 508728c0ee0SJiri Olsa usleep(stat_config.initial_delay * USEC_PER_MSEC); 5092162b9c6SAlexey Budankov } 51067ccdecdSJiri Olsa 51167ccdecdSJiri Olsa /* 51267ccdecdSJiri Olsa * We need to enable counters only if: 51367ccdecdSJiri Olsa * - we don't have tracee (attaching to task or cpu) 51467ccdecdSJiri Olsa * - we have initial delay configured 51567ccdecdSJiri Olsa */ 5162162b9c6SAlexey Budankov if (!target__none(&target) || stat_config.initial_delay) { 5171c87f165SJiri Olsa evlist__enable(evsel_list); 5182162b9c6SAlexey Budankov if (stat_config.initial_delay > 0) 5192162b9c6SAlexey Budankov pr_info(EVLIST_ENABLED_MSG); 5202162b9c6SAlexey Budankov } 52141191688SAndi Kleen } 52241191688SAndi Kleen 5233df33effSMark Rutland static void disable_counters(void) 5243df33effSMark Rutland { 5253df33effSMark Rutland /* 5263df33effSMark Rutland * If we don't have tracee (attaching to task or cpu), counters may 5273df33effSMark Rutland * still be running. To get accurate group ratios, we must stop groups 5283df33effSMark Rutland * from counting before reading their constituent counters. 5293df33effSMark Rutland */ 5303df33effSMark Rutland if (!target__none(&target)) 531e74676deSJiri Olsa evlist__disable(evsel_list); 5323df33effSMark Rutland } 5333df33effSMark Rutland 534f33cbe72SArnaldo Carvalho de Melo static volatile int workload_exec_errno; 5356af206fdSArnaldo Carvalho de Melo 5366af206fdSArnaldo Carvalho de Melo /* 5376af206fdSArnaldo Carvalho de Melo * perf_evlist__prepare_workload will send a SIGUSR1 5386af206fdSArnaldo Carvalho de Melo * if the fork fails, since we asked by setting its 5396af206fdSArnaldo Carvalho de Melo * want_signal to true. 5406af206fdSArnaldo Carvalho de Melo */ 541f33cbe72SArnaldo Carvalho de Melo static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, 542f33cbe72SArnaldo Carvalho de Melo void *ucontext __maybe_unused) 5436af206fdSArnaldo Carvalho de Melo { 544f33cbe72SArnaldo Carvalho de Melo workload_exec_errno = info->si_value.sival_int; 5456af206fdSArnaldo Carvalho de Melo } 5466af206fdSArnaldo Carvalho de Melo 547ddc6999eSArnaldo Carvalho de Melo static bool evsel__should_store_id(struct evsel *counter) 54882bf311eSJiri Olsa { 5491fc632ceSJiri Olsa return STAT_RECORD || counter->core.attr.read_format & PERF_FORMAT_ID; 55082bf311eSJiri Olsa } 55182bf311eSJiri Olsa 552cbb5df7eSJiri Olsa static bool is_target_alive(struct target *_target, 5539749b90eSJiri Olsa struct perf_thread_map *threads) 554cbb5df7eSJiri Olsa { 555cbb5df7eSJiri Olsa struct stat st; 556cbb5df7eSJiri Olsa int i; 557cbb5df7eSJiri Olsa 558cbb5df7eSJiri Olsa if (!target__has_task(_target)) 559cbb5df7eSJiri Olsa return true; 560cbb5df7eSJiri Olsa 561cbb5df7eSJiri Olsa for (i = 0; i < threads->nr; i++) { 562cbb5df7eSJiri Olsa char path[PATH_MAX]; 563cbb5df7eSJiri Olsa 564cbb5df7eSJiri Olsa scnprintf(path, PATH_MAX, "%s/%d", procfs__mountpoint(), 565cbb5df7eSJiri Olsa threads->map[i].pid); 566cbb5df7eSJiri Olsa 567cbb5df7eSJiri Olsa if (!stat(path, &st)) 568cbb5df7eSJiri Olsa return true; 569cbb5df7eSJiri Olsa } 570cbb5df7eSJiri Olsa 571cbb5df7eSJiri Olsa return false; 572cbb5df7eSJiri Olsa } 573cbb5df7eSJiri Olsa 574bee328cbSAlexey Budankov static void process_evlist(struct evlist *evlist, unsigned int interval) 575bee328cbSAlexey Budankov { 576bee328cbSAlexey Budankov enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED; 577bee328cbSAlexey Budankov 578bee328cbSAlexey Budankov if (evlist__ctlfd_process(evlist, &cmd) > 0) { 579bee328cbSAlexey Budankov switch (cmd) { 580bee328cbSAlexey Budankov case EVLIST_CTL_CMD_ENABLE: 581bee328cbSAlexey Budankov pr_info(EVLIST_ENABLED_MSG); 582bee328cbSAlexey Budankov if (interval) 583bee328cbSAlexey Budankov process_interval(); 584bee328cbSAlexey Budankov break; 585bee328cbSAlexey Budankov case EVLIST_CTL_CMD_DISABLE: 586bee328cbSAlexey Budankov if (interval) 587bee328cbSAlexey Budankov process_interval(); 588bee328cbSAlexey Budankov pr_info(EVLIST_DISABLED_MSG); 589bee328cbSAlexey Budankov break; 590d20aff15SAdrian Hunter case EVLIST_CTL_CMD_SNAPSHOT: 591bee328cbSAlexey Budankov case EVLIST_CTL_CMD_ACK: 592bee328cbSAlexey Budankov case EVLIST_CTL_CMD_UNSUPPORTED: 593bee328cbSAlexey Budankov default: 594bee328cbSAlexey Budankov break; 595bee328cbSAlexey Budankov } 596bee328cbSAlexey Budankov } 597bee328cbSAlexey Budankov } 598bee328cbSAlexey Budankov 599bee328cbSAlexey Budankov static void compute_tts(struct timespec *time_start, struct timespec *time_stop, 600bee328cbSAlexey Budankov int *time_to_sleep) 601bee328cbSAlexey Budankov { 602bee328cbSAlexey Budankov int tts = *time_to_sleep; 603bee328cbSAlexey Budankov struct timespec time_diff; 604bee328cbSAlexey Budankov 605bee328cbSAlexey Budankov diff_timespec(&time_diff, time_stop, time_start); 606bee328cbSAlexey Budankov 607bee328cbSAlexey Budankov tts -= time_diff.tv_sec * MSEC_PER_SEC + 608bee328cbSAlexey Budankov time_diff.tv_nsec / NSEC_PER_MSEC; 609bee328cbSAlexey Budankov 610bee328cbSAlexey Budankov if (tts < 0) 611bee328cbSAlexey Budankov tts = 0; 612bee328cbSAlexey Budankov 613bee328cbSAlexey Budankov *time_to_sleep = tts; 614bee328cbSAlexey Budankov } 615bee328cbSAlexey Budankov 616bee328cbSAlexey Budankov static int dispatch_events(bool forks, int timeout, int interval, int *times) 617987b8238SAlexey Budankov { 618987b8238SAlexey Budankov int child_exited = 0, status = 0; 619bee328cbSAlexey Budankov int time_to_sleep, sleep_time; 620bee328cbSAlexey Budankov struct timespec time_start, time_stop; 621bee328cbSAlexey Budankov 622bee328cbSAlexey Budankov if (interval) 623bee328cbSAlexey Budankov sleep_time = interval; 624bee328cbSAlexey Budankov else if (timeout) 625bee328cbSAlexey Budankov sleep_time = timeout; 626bee328cbSAlexey Budankov else 627bee328cbSAlexey Budankov sleep_time = 1000; 628bee328cbSAlexey Budankov 629bee328cbSAlexey Budankov time_to_sleep = sleep_time; 630987b8238SAlexey Budankov 631987b8238SAlexey Budankov while (!done) { 632987b8238SAlexey Budankov if (forks) 633987b8238SAlexey Budankov child_exited = waitpid(child_pid, &status, WNOHANG); 634987b8238SAlexey Budankov else 635987b8238SAlexey Budankov child_exited = !is_target_alive(&target, evsel_list->core.threads) ? 1 : 0; 636987b8238SAlexey Budankov 637987b8238SAlexey Budankov if (child_exited) 638987b8238SAlexey Budankov break; 639987b8238SAlexey Budankov 640bee328cbSAlexey Budankov clock_gettime(CLOCK_MONOTONIC, &time_start); 641bee328cbSAlexey Budankov if (!(evlist__poll(evsel_list, time_to_sleep) > 0)) { /* poll timeout or EINTR */ 642987b8238SAlexey Budankov if (timeout || handle_interval(interval, times)) 643987b8238SAlexey Budankov break; 644bee328cbSAlexey Budankov time_to_sleep = sleep_time; 645bee328cbSAlexey Budankov } else { /* fd revent */ 646bee328cbSAlexey Budankov process_evlist(evsel_list, interval); 647bee328cbSAlexey Budankov clock_gettime(CLOCK_MONOTONIC, &time_stop); 648bee328cbSAlexey Budankov compute_tts(&time_start, &time_stop, &time_to_sleep); 649bee328cbSAlexey Budankov } 650987b8238SAlexey Budankov } 651987b8238SAlexey Budankov 652987b8238SAlexey Budankov return status; 653987b8238SAlexey Budankov } 654987b8238SAlexey Budankov 655e0e6a6caSAndi Kleen enum counter_recovery { 656e0e6a6caSAndi Kleen COUNTER_SKIP, 657e0e6a6caSAndi Kleen COUNTER_RETRY, 658e0e6a6caSAndi Kleen COUNTER_FATAL, 659e0e6a6caSAndi Kleen }; 660e0e6a6caSAndi Kleen 661e0e6a6caSAndi Kleen static enum counter_recovery stat_handle_error(struct evsel *counter) 662e0e6a6caSAndi Kleen { 663e0e6a6caSAndi Kleen char msg[BUFSIZ]; 664e0e6a6caSAndi Kleen /* 665e0e6a6caSAndi Kleen * PPC returns ENXIO for HW counters until 2.6.37 666e0e6a6caSAndi Kleen * (behavior changed with commit b0a873e). 667e0e6a6caSAndi Kleen */ 668e0e6a6caSAndi Kleen if (errno == EINVAL || errno == ENOSYS || 669e0e6a6caSAndi Kleen errno == ENOENT || errno == EOPNOTSUPP || 670e0e6a6caSAndi Kleen errno == ENXIO) { 671e0e6a6caSAndi Kleen if (verbose > 0) 672e0e6a6caSAndi Kleen ui__warning("%s event is not supported by the kernel.\n", 6738ab2e96dSArnaldo Carvalho de Melo evsel__name(counter)); 674e0e6a6caSAndi Kleen counter->supported = false; 6754804e011SAndi Kleen /* 6764804e011SAndi Kleen * errored is a sticky flag that means one of the counter's 6774804e011SAndi Kleen * cpu event had a problem and needs to be reexamined. 6784804e011SAndi Kleen */ 6794804e011SAndi Kleen counter->errored = true; 680e0e6a6caSAndi Kleen 681e0e6a6caSAndi Kleen if ((counter->leader != counter) || 682e0e6a6caSAndi Kleen !(counter->leader->core.nr_members > 1)) 683e0e6a6caSAndi Kleen return COUNTER_SKIP; 684ae430892SArnaldo Carvalho de Melo } else if (evsel__fallback(counter, errno, msg, sizeof(msg))) { 685e0e6a6caSAndi Kleen if (verbose > 0) 686e0e6a6caSAndi Kleen ui__warning("%s\n", msg); 687e0e6a6caSAndi Kleen return COUNTER_RETRY; 688e0e6a6caSAndi Kleen } else if (target__has_per_thread(&target) && 689e0e6a6caSAndi Kleen evsel_list->core.threads && 690e0e6a6caSAndi Kleen evsel_list->core.threads->err_thread != -1) { 691e0e6a6caSAndi Kleen /* 692e0e6a6caSAndi Kleen * For global --per-thread case, skip current 693e0e6a6caSAndi Kleen * error thread. 694e0e6a6caSAndi Kleen */ 695e0e6a6caSAndi Kleen if (!thread_map__remove(evsel_list->core.threads, 696e0e6a6caSAndi Kleen evsel_list->core.threads->err_thread)) { 697e0e6a6caSAndi Kleen evsel_list->core.threads->err_thread = -1; 698e0e6a6caSAndi Kleen return COUNTER_RETRY; 699e0e6a6caSAndi Kleen } 700e0e6a6caSAndi Kleen } 701e0e6a6caSAndi Kleen 7022bb72dbbSArnaldo Carvalho de Melo evsel__open_strerror(counter, &target, errno, msg, sizeof(msg)); 703e0e6a6caSAndi Kleen ui__error("%s\n", msg); 704e0e6a6caSAndi Kleen 705e0e6a6caSAndi Kleen if (child_pid != -1) 706e0e6a6caSAndi Kleen kill(child_pid, SIGTERM); 707e0e6a6caSAndi Kleen return COUNTER_FATAL; 708e0e6a6caSAndi Kleen } 709e0e6a6caSAndi Kleen 710e55c14afSJiri Olsa static int __run_perf_stat(int argc, const char **argv, int run_idx) 71186470930SIngo Molnar { 712ec0d3d1fSJiri Olsa int interval = stat_config.interval; 713db06a269Syuzhoujian int times = stat_config.times; 714f1f8ad52Syuzhoujian int timeout = stat_config.timeout; 715d6195a6aSArnaldo Carvalho de Melo char msg[BUFSIZ]; 71686470930SIngo Molnar unsigned long long t0, t1; 71732dcd021SJiri Olsa struct evsel *counter; 718410136f5SStephane Eranian size_t l; 71942202dd5SIngo Molnar int status = 0; 7206be2850eSZhang, Yanmin const bool forks = (argc > 0); 7218ceb41d7SJiri Olsa bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false; 7224804e011SAndi Kleen struct affinity affinity; 7234804e011SAndi Kleen int i, cpu; 7244804e011SAndi Kleen bool second_pass = false; 72586470930SIngo Molnar 726acf28922SNamhyung Kim if (forks) { 727664c98d4SJiri Olsa if (perf_evlist__prepare_workload(evsel_list, &target, argv, is_pipe, 728735f7e0bSArnaldo Carvalho de Melo workload_exec_failed_signal) < 0) { 729acf28922SNamhyung Kim perror("failed to prepare workload"); 730fceda7feSDavid Ahern return -1; 731051ae7f7SPaul Mackerras } 732d20a47e7SNamhyung Kim child_pid = evsel_list->workload.pid; 73360666c63SLiming Wang } 734051ae7f7SPaul Mackerras 7356a4bb04cSJiri Olsa if (group) 736*a622eafaSArnaldo Carvalho de Melo evlist__set_leader(evsel_list); 7376a4bb04cSJiri Olsa 7384804e011SAndi Kleen if (affinity__setup(&affinity) < 0) 7394804e011SAndi Kleen return -1; 7405a5dfe4bSAndi Kleen 7414804e011SAndi Kleen evlist__for_each_cpu (evsel_list, i, cpu) { 7424804e011SAndi Kleen affinity__set(&affinity, cpu); 7434804e011SAndi Kleen 7444804e011SAndi Kleen evlist__for_each_entry(evsel_list, counter) { 7454804e011SAndi Kleen if (evsel__cpu_iter_skip(counter, cpu)) 7464804e011SAndi Kleen continue; 7474804e011SAndi Kleen if (counter->reset_group || counter->errored) 7484804e011SAndi Kleen continue; 7494804e011SAndi Kleen try_again: 7504804e011SAndi Kleen if (create_perf_stat_counter(counter, &stat_config, &target, 7514804e011SAndi Kleen counter->cpu_iter - 1) < 0) { 7524804e011SAndi Kleen 7534804e011SAndi Kleen /* 7544804e011SAndi Kleen * Weak group failed. We cannot just undo this here 7554804e011SAndi Kleen * because earlier CPUs might be in group mode, and the kernel 7564804e011SAndi Kleen * doesn't support mixing group and non group reads. Defer 7574804e011SAndi Kleen * it to later. 7584804e011SAndi Kleen * Don't close here because we're in the wrong affinity. 7594804e011SAndi Kleen */ 76035c1980eSAndi Kleen if ((errno == EINVAL || errno == EBADF) && 7615a5dfe4bSAndi Kleen counter->leader != counter && 7625a5dfe4bSAndi Kleen counter->weak_group) { 7634804e011SAndi Kleen perf_evlist__reset_weak_group(evsel_list, counter, false); 7644804e011SAndi Kleen assert(counter->reset_group); 7654804e011SAndi Kleen second_pass = true; 7664804e011SAndi Kleen continue; 7675a5dfe4bSAndi Kleen } 7685a5dfe4bSAndi Kleen 769e0e6a6caSAndi Kleen switch (stat_handle_error(counter)) { 770e0e6a6caSAndi Kleen case COUNTER_FATAL: 771084ab9f8SArnaldo Carvalho de Melo return -1; 772e0e6a6caSAndi Kleen case COUNTER_RETRY: 773e0e6a6caSAndi Kleen goto try_again; 774e0e6a6caSAndi Kleen case COUNTER_SKIP: 775e0e6a6caSAndi Kleen continue; 776e0e6a6caSAndi Kleen default: 777e0e6a6caSAndi Kleen break; 778e0e6a6caSAndi Kleen } 7794804e011SAndi Kleen 780084ab9f8SArnaldo Carvalho de Melo } 7812cee77c4SDavid Ahern counter->supported = true; 7824804e011SAndi Kleen } 7834804e011SAndi Kleen } 7844804e011SAndi Kleen 7854804e011SAndi Kleen if (second_pass) { 7864804e011SAndi Kleen /* 7874804e011SAndi Kleen * Now redo all the weak group after closing them, 7884804e011SAndi Kleen * and also close errored counters. 7894804e011SAndi Kleen */ 7904804e011SAndi Kleen 7914804e011SAndi Kleen evlist__for_each_cpu(evsel_list, i, cpu) { 7924804e011SAndi Kleen affinity__set(&affinity, cpu); 7934804e011SAndi Kleen /* First close errored or weak retry */ 7944804e011SAndi Kleen evlist__for_each_entry(evsel_list, counter) { 7954804e011SAndi Kleen if (!counter->reset_group && !counter->errored) 7964804e011SAndi Kleen continue; 7974804e011SAndi Kleen if (evsel__cpu_iter_skip_no_inc(counter, cpu)) 7984804e011SAndi Kleen continue; 7994804e011SAndi Kleen perf_evsel__close_cpu(&counter->core, counter->cpu_iter); 8004804e011SAndi Kleen } 8014804e011SAndi Kleen /* Now reopen weak */ 8024804e011SAndi Kleen evlist__for_each_entry(evsel_list, counter) { 8034804e011SAndi Kleen if (!counter->reset_group && !counter->errored) 8044804e011SAndi Kleen continue; 8054804e011SAndi Kleen if (evsel__cpu_iter_skip(counter, cpu)) 8064804e011SAndi Kleen continue; 8074804e011SAndi Kleen if (!counter->reset_group) 8084804e011SAndi Kleen continue; 8094804e011SAndi Kleen try_again_reset: 8108ab2e96dSArnaldo Carvalho de Melo pr_debug2("reopening weak %s\n", evsel__name(counter)); 8114804e011SAndi Kleen if (create_perf_stat_counter(counter, &stat_config, &target, 8124804e011SAndi Kleen counter->cpu_iter - 1) < 0) { 8134804e011SAndi Kleen 8144804e011SAndi Kleen switch (stat_handle_error(counter)) { 8154804e011SAndi Kleen case COUNTER_FATAL: 8164804e011SAndi Kleen return -1; 8174804e011SAndi Kleen case COUNTER_RETRY: 8184804e011SAndi Kleen goto try_again_reset; 8194804e011SAndi Kleen case COUNTER_SKIP: 8204804e011SAndi Kleen continue; 8214804e011SAndi Kleen default: 8224804e011SAndi Kleen break; 8234804e011SAndi Kleen } 8244804e011SAndi Kleen } 8254804e011SAndi Kleen counter->supported = true; 8264804e011SAndi Kleen } 8274804e011SAndi Kleen } 8284804e011SAndi Kleen } 8294804e011SAndi Kleen affinity__cleanup(&affinity); 8304804e011SAndi Kleen 8314804e011SAndi Kleen evlist__for_each_entry(evsel_list, counter) { 8324804e011SAndi Kleen if (!counter->supported) { 8334804e011SAndi Kleen perf_evsel__free_fd(&counter->core); 8344804e011SAndi Kleen continue; 8354804e011SAndi Kleen } 836410136f5SStephane Eranian 837410136f5SStephane Eranian l = strlen(counter->unit); 838df4f7b4dSJiri Olsa if (l > stat_config.unit_width) 839df4f7b4dSJiri Olsa stat_config.unit_width = l; 8402af4646dSJiri Olsa 841ddc6999eSArnaldo Carvalho de Melo if (evsel__should_store_id(counter) && 84234397753SArnaldo Carvalho de Melo evsel__store_ids(counter, evsel_list)) 8432af4646dSJiri Olsa return -1; 84448290609SArnaldo Carvalho de Melo } 84586470930SIngo Molnar 84623d4aad4SArnaldo Carvalho de Melo if (perf_evlist__apply_filters(evsel_list, &counter)) { 84762d94b00SArnaldo Carvalho de Melo pr_err("failed to set filter \"%s\" on event %s with %d (%s)\n", 8488ab2e96dSArnaldo Carvalho de Melo counter->filter, evsel__name(counter), errno, 849c8b5f2c9SArnaldo Carvalho de Melo str_error_r(errno, msg, sizeof(msg))); 850cfd748aeSFrederic Weisbecker return -1; 851cfd748aeSFrederic Weisbecker } 852cfd748aeSFrederic Weisbecker 8534979d0c7SJiri Olsa if (STAT_RECORD) { 8548ceb41d7SJiri Olsa int err, fd = perf_data__fd(&perf_stat.data); 8554979d0c7SJiri Olsa 856664c98d4SJiri Olsa if (is_pipe) { 8578ceb41d7SJiri Olsa err = perf_header__write_pipe(perf_data__fd(&perf_stat.data)); 858664c98d4SJiri Olsa } else { 8594979d0c7SJiri Olsa err = perf_session__write_header(perf_stat.session, evsel_list, 8604979d0c7SJiri Olsa fd, false); 861664c98d4SJiri Olsa } 862664c98d4SJiri Olsa 8634979d0c7SJiri Olsa if (err < 0) 8644979d0c7SJiri Olsa return err; 8658b99b1a4SJiri Olsa 866b251892dSArnaldo Carvalho de Melo err = perf_event__synthesize_stat_events(&stat_config, NULL, evsel_list, 867c2c247f2SJiri Olsa process_synthesized_event, is_pipe); 8688b99b1a4SJiri Olsa if (err < 0) 8698b99b1a4SJiri Olsa return err; 8704979d0c7SJiri Olsa } 8714979d0c7SJiri Olsa 87286470930SIngo Molnar /* 87386470930SIngo Molnar * Enable counters and exec the command: 87486470930SIngo Molnar */ 87586470930SIngo Molnar t0 = rdclock(); 87613370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ref_time); 87786470930SIngo Molnar 87860666c63SLiming Wang if (forks) { 879acf28922SNamhyung Kim perf_evlist__start_workload(evsel_list); 88067ccdecdSJiri Olsa enable_counters(); 881acf28922SNamhyung Kim 88227e9769aSAlexey Budankov if (interval || timeout || evlist__ctlfd_initialized(evsel_list)) 883bee328cbSAlexey Budankov status = dispatch_events(forks, timeout, interval, ×); 884cfbd41b7SArnaldo Carvalho de Melo if (child_pid != -1) { 885cfbd41b7SArnaldo Carvalho de Melo if (timeout) 886cfbd41b7SArnaldo Carvalho de Melo kill(child_pid, SIGTERM); 8878897a891SJiri Olsa wait4(child_pid, &status, 0, &stat_config.ru_data); 888cfbd41b7SArnaldo Carvalho de Melo } 8896af206fdSArnaldo Carvalho de Melo 890f33cbe72SArnaldo Carvalho de Melo if (workload_exec_errno) { 891c8b5f2c9SArnaldo Carvalho de Melo const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg)); 892f33cbe72SArnaldo Carvalho de Melo pr_err("Workload failed: %s\n", emsg); 8936af206fdSArnaldo Carvalho de Melo return -1; 894f33cbe72SArnaldo Carvalho de Melo } 8956af206fdSArnaldo Carvalho de Melo 89633e49ea7SAndi Kleen if (WIFSIGNALED(status)) 89733e49ea7SAndi Kleen psignal(WTERMSIG(status), argv[0]); 89860666c63SLiming Wang } else { 89967ccdecdSJiri Olsa enable_counters(); 900bee328cbSAlexey Budankov status = dispatch_events(forks, timeout, interval, ×); 90160666c63SLiming Wang } 90286470930SIngo Molnar 9033df33effSMark Rutland disable_counters(); 9043df33effSMark Rutland 90586470930SIngo Molnar t1 = rdclock(); 90686470930SIngo Molnar 90754ac0b1bSJiri Olsa if (stat_config.walltime_run_table) 90854ac0b1bSJiri Olsa stat_config.walltime_run[run_idx] = t1 - t0; 909e55c14afSJiri Olsa 910ee6a9614SJin Yao if (interval && stat_config.summary) { 911c7e5b328SJin Yao stat_config.interval = 0; 912ee6a9614SJin Yao stat_config.stop_read_counter = true; 913c7e5b328SJin Yao init_stats(&walltime_nsecs_stats); 914c7e5b328SJin Yao update_stats(&walltime_nsecs_stats, t1 - t0); 915c7e5b328SJin Yao 916c7e5b328SJin Yao if (stat_config.aggr_mode == AGGR_GLOBAL) 917c7e5b328SJin Yao perf_evlist__save_aggr_prev_raw_counts(evsel_list); 918c7e5b328SJin Yao 919c7e5b328SJin Yao perf_evlist__copy_prev_raw_counts(evsel_list); 920c7e5b328SJin Yao perf_evlist__reset_prev_raw_counts(evsel_list); 921c7e5b328SJin Yao runtime_stat_reset(&stat_config); 922c7e5b328SJin Yao perf_stat__reset_shadow_per_stat(&rt_stat); 923c7e5b328SJin Yao } else 9249e9772c4SPeter Zijlstra update_stats(&walltime_nsecs_stats, t1 - t0); 92542202dd5SIngo Molnar 9263df33effSMark Rutland /* 9273df33effSMark Rutland * Closing a group leader splits the group, and as we only disable 9283df33effSMark Rutland * group leaders, results in remaining events becoming enabled. To 9293df33effSMark Rutland * avoid arbitrary skew, we must read all counters before closing any 9303df33effSMark Rutland * group leaders. 9313df33effSMark Rutland */ 932f0fbb114SAndi Kleen read_counters(&(struct timespec) { .tv_nsec = t1-t0 }); 93308ef3af1SJiri Olsa 93408ef3af1SJiri Olsa /* 93508ef3af1SJiri Olsa * We need to keep evsel_list alive, because it's processed 93608ef3af1SJiri Olsa * later the evsel_list will be closed after. 93708ef3af1SJiri Olsa */ 93808ef3af1SJiri Olsa if (!STAT_RECORD) 939750b4edeSJiri Olsa evlist__close(evsel_list); 940c52b12edSArnaldo Carvalho de Melo 94142202dd5SIngo Molnar return WEXITSTATUS(status); 94242202dd5SIngo Molnar } 94342202dd5SIngo Molnar 944e55c14afSJiri Olsa static int run_perf_stat(int argc, const char **argv, int run_idx) 9451f16c575SPeter Zijlstra { 9461f16c575SPeter Zijlstra int ret; 9471f16c575SPeter Zijlstra 9481f16c575SPeter Zijlstra if (pre_cmd) { 9491f16c575SPeter Zijlstra ret = system(pre_cmd); 9501f16c575SPeter Zijlstra if (ret) 9511f16c575SPeter Zijlstra return ret; 9521f16c575SPeter Zijlstra } 9531f16c575SPeter Zijlstra 9541f16c575SPeter Zijlstra if (sync_run) 9551f16c575SPeter Zijlstra sync(); 9561f16c575SPeter Zijlstra 957e55c14afSJiri Olsa ret = __run_perf_stat(argc, argv, run_idx); 9581f16c575SPeter Zijlstra if (ret) 9591f16c575SPeter Zijlstra return ret; 9601f16c575SPeter Zijlstra 9611f16c575SPeter Zijlstra if (post_cmd) { 9621f16c575SPeter Zijlstra ret = system(post_cmd); 9631f16c575SPeter Zijlstra if (ret) 9641f16c575SPeter Zijlstra return ret; 9651f16c575SPeter Zijlstra } 9661f16c575SPeter Zijlstra 9671f16c575SPeter Zijlstra return ret; 9681f16c575SPeter Zijlstra } 9691f16c575SPeter Zijlstra 970a5a9eac1SJiri Olsa static void print_counters(struct timespec *ts, int argc, const char **argv) 971a5a9eac1SJiri Olsa { 9720174820aSJiri Olsa /* Do not print anything if we record to the pipe. */ 9730174820aSJiri Olsa if (STAT_RECORD && perf_stat.data.is_pipe) 9740174820aSJiri Olsa return; 97555a4de94SAndi Kleen if (stat_config.quiet) 97655a4de94SAndi Kleen return; 9770174820aSJiri Olsa 978c512e0eaSJiri Olsa perf_evlist__print_counters(evsel_list, &stat_config, &target, 979b64df7f3SJiri Olsa ts, argc, argv); 980a5a9eac1SJiri Olsa } 981a5a9eac1SJiri Olsa 982f7b7c26eSPeter Zijlstra static volatile int signr = -1; 983f7b7c26eSPeter Zijlstra 98486470930SIngo Molnar static void skip_signal(int signo) 98586470930SIngo Molnar { 986ec0d3d1fSJiri Olsa if ((child_pid == -1) || stat_config.interval) 98760666c63SLiming Wang done = 1; 98860666c63SLiming Wang 989f7b7c26eSPeter Zijlstra signr = signo; 990d07f0b12SStephane Eranian /* 991d07f0b12SStephane Eranian * render child_pid harmless 992d07f0b12SStephane Eranian * won't send SIGTERM to a random 993d07f0b12SStephane Eranian * process in case of race condition 994d07f0b12SStephane Eranian * and fast PID recycling 995d07f0b12SStephane Eranian */ 996d07f0b12SStephane Eranian child_pid = -1; 997f7b7c26eSPeter Zijlstra } 998f7b7c26eSPeter Zijlstra 999f7b7c26eSPeter Zijlstra static void sig_atexit(void) 1000f7b7c26eSPeter Zijlstra { 1001d07f0b12SStephane Eranian sigset_t set, oset; 1002d07f0b12SStephane Eranian 1003d07f0b12SStephane Eranian /* 1004d07f0b12SStephane Eranian * avoid race condition with SIGCHLD handler 1005d07f0b12SStephane Eranian * in skip_signal() which is modifying child_pid 1006d07f0b12SStephane Eranian * goal is to avoid send SIGTERM to a random 1007d07f0b12SStephane Eranian * process 1008d07f0b12SStephane Eranian */ 1009d07f0b12SStephane Eranian sigemptyset(&set); 1010d07f0b12SStephane Eranian sigaddset(&set, SIGCHLD); 1011d07f0b12SStephane Eranian sigprocmask(SIG_BLOCK, &set, &oset); 1012d07f0b12SStephane Eranian 1013933da83aSChris Wilson if (child_pid != -1) 1014933da83aSChris Wilson kill(child_pid, SIGTERM); 1015933da83aSChris Wilson 1016d07f0b12SStephane Eranian sigprocmask(SIG_SETMASK, &oset, NULL); 1017d07f0b12SStephane Eranian 1018f7b7c26eSPeter Zijlstra if (signr == -1) 1019f7b7c26eSPeter Zijlstra return; 1020f7b7c26eSPeter Zijlstra 1021f7b7c26eSPeter Zijlstra signal(signr, SIG_DFL); 1022f7b7c26eSPeter Zijlstra kill(getpid(), signr); 102386470930SIngo Molnar } 102486470930SIngo Molnar 1025d778a778SPaul A. Clarke void perf_stat__set_big_num(int set) 1026d778a778SPaul A. Clarke { 1027d778a778SPaul A. Clarke stat_config.big_num = (set != 0); 1028d778a778SPaul A. Clarke } 1029d778a778SPaul A. Clarke 10301d037ca1SIrina Tirdea static int stat__set_big_num(const struct option *opt __maybe_unused, 10311d037ca1SIrina Tirdea const char *s __maybe_unused, int unset) 1032d7470b6aSStephane Eranian { 1033d7470b6aSStephane Eranian big_num_opt = unset ? 0 : 1; 1034d778a778SPaul A. Clarke perf_stat__set_big_num(!unset); 1035d7470b6aSStephane Eranian return 0; 1036d7470b6aSStephane Eranian } 1037d7470b6aSStephane Eranian 103844b1e60aSAndi Kleen static int enable_metric_only(const struct option *opt __maybe_unused, 103944b1e60aSAndi Kleen const char *s __maybe_unused, int unset) 104044b1e60aSAndi Kleen { 104144b1e60aSAndi Kleen force_metric_only = true; 10420ce5aa02SJiri Olsa stat_config.metric_only = !unset; 104344b1e60aSAndi Kleen return 0; 104444b1e60aSAndi Kleen } 104544b1e60aSAndi Kleen 1046b18f3e36SAndi Kleen static int parse_metric_groups(const struct option *opt, 1047b18f3e36SAndi Kleen const char *str, 1048b18f3e36SAndi Kleen int unset __maybe_unused) 1049b18f3e36SAndi Kleen { 105005530a79SIan Rogers return metricgroup__parse_groups(opt, str, 105105530a79SIan Rogers stat_config.metric_no_group, 105205530a79SIan Rogers stat_config.metric_no_merge, 105305530a79SIan Rogers &stat_config.metric_events); 1054b18f3e36SAndi Kleen } 1055b18f3e36SAndi Kleen 105627e9769aSAlexey Budankov static int parse_control_option(const struct option *opt, 105727e9769aSAlexey Budankov const char *str, 105827e9769aSAlexey Budankov int unset __maybe_unused) 105927e9769aSAlexey Budankov { 10609864a66dSAdrian Hunter struct perf_stat_config *config = opt->value; 106127e9769aSAlexey Budankov 1062a8fcbd26SAdrian Hunter return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack, &config->ctl_fd_close); 1063a8fcbd26SAdrian Hunter } 1064a8fcbd26SAdrian Hunter 1065d1c5a0e8SNamhyung Kim static int parse_stat_cgroups(const struct option *opt, 1066d1c5a0e8SNamhyung Kim const char *str, int unset) 1067d1c5a0e8SNamhyung Kim { 1068d1c5a0e8SNamhyung Kim if (stat_config.cgroup_list) { 1069d1c5a0e8SNamhyung Kim pr_err("--cgroup and --for-each-cgroup cannot be used together\n"); 1070d1c5a0e8SNamhyung Kim return -1; 1071d1c5a0e8SNamhyung Kim } 1072d1c5a0e8SNamhyung Kim 1073d1c5a0e8SNamhyung Kim return parse_cgroups(opt, str, unset); 1074d1c5a0e8SNamhyung Kim } 1075d1c5a0e8SNamhyung Kim 107651433eadSMichael Petlan static struct option stat_options[] = { 1077e0547311SJiri Olsa OPT_BOOLEAN('T', "transaction", &transaction_run, 1078e0547311SJiri Olsa "hardware transaction statistics"), 1079e0547311SJiri Olsa OPT_CALLBACK('e', "event", &evsel_list, "event", 1080e0547311SJiri Olsa "event selector. use 'perf list' to list available events", 1081e0547311SJiri Olsa parse_events_option), 1082e0547311SJiri Olsa OPT_CALLBACK(0, "filter", &evsel_list, "filter", 1083e0547311SJiri Olsa "event filter", parse_filter), 10845698f26bSJiri Olsa OPT_BOOLEAN('i', "no-inherit", &stat_config.no_inherit, 1085e0547311SJiri Olsa "child tasks do not inherit counters"), 1086e0547311SJiri Olsa OPT_STRING('p', "pid", &target.pid, "pid", 1087e0547311SJiri Olsa "stat events on existing process id"), 1088e0547311SJiri Olsa OPT_STRING('t', "tid", &target.tid, "tid", 1089e0547311SJiri Olsa "stat events on existing thread id"), 1090e0547311SJiri Olsa OPT_BOOLEAN('a', "all-cpus", &target.system_wide, 1091e0547311SJiri Olsa "system-wide collection from all CPUs"), 1092e0547311SJiri Olsa OPT_BOOLEAN('g', "group", &group, 1093e0547311SJiri Olsa "put the counters into a counter group"), 109475998bb2SAndi Kleen OPT_BOOLEAN(0, "scale", &stat_config.scale, 109575998bb2SAndi Kleen "Use --no-scale to disable counter scaling for multiplexing"), 1096e0547311SJiri Olsa OPT_INCR('v', "verbose", &verbose, 1097e0547311SJiri Olsa "be more verbose (show counter open errors, etc)"), 1098d97ae04bSJiri Olsa OPT_INTEGER('r', "repeat", &stat_config.run_count, 1099e0547311SJiri Olsa "repeat command and print average + stddev (max: 100, forever: 0)"), 110054ac0b1bSJiri Olsa OPT_BOOLEAN(0, "table", &stat_config.walltime_run_table, 1101e55c14afSJiri Olsa "display details about each run (only with -r option)"), 1102aea0dca1SJiri Olsa OPT_BOOLEAN('n', "null", &stat_config.null_run, 1103e0547311SJiri Olsa "null run - dont start any counters"), 1104e0547311SJiri Olsa OPT_INCR('d', "detailed", &detailed_run, 1105e0547311SJiri Olsa "detailed run - start a lot of events"), 1106e0547311SJiri Olsa OPT_BOOLEAN('S', "sync", &sync_run, 1107e0547311SJiri Olsa "call sync() before starting a run"), 1108e0547311SJiri Olsa OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 1109e0547311SJiri Olsa "print large numbers with thousands\' separators", 1110e0547311SJiri Olsa stat__set_big_num), 1111e0547311SJiri Olsa OPT_STRING('C', "cpu", &target.cpu_list, "cpu", 1112e0547311SJiri Olsa "list of cpus to monitor in system-wide"), 1113e0547311SJiri Olsa OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, 1114e0547311SJiri Olsa "disable CPU count aggregation", AGGR_NONE), 1115fdee335bSJiri Olsa OPT_BOOLEAN(0, "no-merge", &stat_config.no_merge, "Do not merge identical named events"), 1116fa7070a3SJiri Olsa OPT_STRING('x', "field-separator", &stat_config.csv_sep, "separator", 1117e0547311SJiri Olsa "print counts with custom separator"), 1118e0547311SJiri Olsa OPT_CALLBACK('G', "cgroup", &evsel_list, "name", 1119d1c5a0e8SNamhyung Kim "monitor event in cgroup name only", parse_stat_cgroups), 1120d1c5a0e8SNamhyung Kim OPT_STRING(0, "for-each-cgroup", &stat_config.cgroup_list, "name", 1121d1c5a0e8SNamhyung Kim "expand events for each cgroup"), 1122e0547311SJiri Olsa OPT_STRING('o', "output", &output_name, "file", "output file name"), 1123e0547311SJiri Olsa OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), 1124e0547311SJiri Olsa OPT_INTEGER(0, "log-fd", &output_fd, 1125e0547311SJiri Olsa "log output to fd, instead of stderr"), 1126e0547311SJiri Olsa OPT_STRING(0, "pre", &pre_cmd, "command", 1127e0547311SJiri Olsa "command to run prior to the measured command"), 1128e0547311SJiri Olsa OPT_STRING(0, "post", &post_cmd, "command", 1129e0547311SJiri Olsa "command to run after to the measured command"), 1130e0547311SJiri Olsa OPT_UINTEGER('I', "interval-print", &stat_config.interval, 11319dc9a95fSAlexey Budankov "print counts at regular interval in ms " 11329dc9a95fSAlexey Budankov "(overhead is possible for values <= 100ms)"), 1133db06a269Syuzhoujian OPT_INTEGER(0, "interval-count", &stat_config.times, 1134db06a269Syuzhoujian "print counts for fixed number of times"), 1135132c6ba3SJiri Olsa OPT_BOOLEAN(0, "interval-clear", &stat_config.interval_clear, 11369660e08eSJiri Olsa "clear screen in between new interval"), 1137f1f8ad52Syuzhoujian OPT_UINTEGER(0, "timeout", &stat_config.timeout, 1138f1f8ad52Syuzhoujian "stop workload and print counts after a timeout period in ms (>= 10ms)"), 1139e0547311SJiri Olsa OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, 1140e0547311SJiri Olsa "aggregate counts per processor socket", AGGR_SOCKET), 1141db5742b6SKan Liang OPT_SET_UINT(0, "per-die", &stat_config.aggr_mode, 1142db5742b6SKan Liang "aggregate counts per processor die", AGGR_DIE), 1143e0547311SJiri Olsa OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, 1144e0547311SJiri Olsa "aggregate counts per physical processor core", AGGR_CORE), 1145e0547311SJiri Olsa OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, 1146e0547311SJiri Olsa "aggregate counts per thread", AGGR_THREAD), 114786895b48SJiri Olsa OPT_SET_UINT(0, "per-node", &stat_config.aggr_mode, 114886895b48SJiri Olsa "aggregate counts per numa node", AGGR_NODE), 11492162b9c6SAlexey Budankov OPT_INTEGER('D', "delay", &stat_config.initial_delay, 11502162b9c6SAlexey Budankov "ms to wait before starting measurement after program start (-1: start with events disabled)"), 11510ce5aa02SJiri Olsa OPT_CALLBACK_NOOPT(0, "metric-only", &stat_config.metric_only, NULL, 115244b1e60aSAndi Kleen "Only print computed metrics. No raw values", enable_metric_only), 115305530a79SIan Rogers OPT_BOOLEAN(0, "metric-no-group", &stat_config.metric_no_group, 115405530a79SIan Rogers "don't group metric events, impacts multiplexing"), 115505530a79SIan Rogers OPT_BOOLEAN(0, "metric-no-merge", &stat_config.metric_no_merge, 115605530a79SIan Rogers "don't try to share events between metrics in a group"), 115744b1e60aSAndi Kleen OPT_BOOLEAN(0, "topdown", &topdown_run, 115844b1e60aSAndi Kleen "measure topdown level 1 statistics"), 1159daefd0bcSKan Liang OPT_BOOLEAN(0, "smi-cost", &smi_cost, 1160daefd0bcSKan Liang "measure SMI cost"), 1161b18f3e36SAndi Kleen OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list", 1162b18f3e36SAndi Kleen "monitor specified metrics or metric groups (separated by ,)", 1163b18f3e36SAndi Kleen parse_metric_groups), 1164dd071024SJin Yao OPT_BOOLEAN_FLAG(0, "all-kernel", &stat_config.all_kernel, 1165dd071024SJin Yao "Configure all used events to run in kernel space.", 1166dd071024SJin Yao PARSE_OPT_EXCLUSIVE), 1167dd071024SJin Yao OPT_BOOLEAN_FLAG(0, "all-user", &stat_config.all_user, 1168dd071024SJin Yao "Configure all used events to run in user space.", 1169dd071024SJin Yao PARSE_OPT_EXCLUSIVE), 11701af62ce6SJin Yao OPT_BOOLEAN(0, "percore-show-thread", &stat_config.percore_show_thread, 11711af62ce6SJin Yao "Use with 'percore' event qualifier to show the event " 11721af62ce6SJin Yao "counts of one hardware thread by sum up total hardware " 11731af62ce6SJin Yao "threads of same physical core"), 1174ee6a9614SJin Yao OPT_BOOLEAN(0, "summary", &stat_config.summary, 1175ee6a9614SJin Yao "print summary for interval mode"), 117655a4de94SAndi Kleen OPT_BOOLEAN(0, "quiet", &stat_config.quiet, 117755a4de94SAndi Kleen "don't print output (useful with record)"), 117870943490SStephane Eranian #ifdef HAVE_LIBPFM 117970943490SStephane Eranian OPT_CALLBACK(0, "pfm-events", &evsel_list, "event", 118070943490SStephane Eranian "libpfm4 event selector. use 'perf list' to list available events", 118170943490SStephane Eranian parse_libpfm_events_option), 118270943490SStephane Eranian #endif 1183a8fcbd26SAdrian Hunter OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd] or fifo:ctl-fifo[,ack-fifo]", 118427e9769aSAlexey Budankov "Listen on ctl-fd descriptor for command to control measurement ('enable': enable events, 'disable': disable events).\n" 1185a8fcbd26SAdrian Hunter "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.\n" 1186a8fcbd26SAdrian Hunter "\t\t\t Alternatively, ctl-fifo / ack-fifo will be opened and used as ctl-fd / ack-fd.", 118727e9769aSAlexey Budankov parse_control_option), 1188e0547311SJiri Olsa OPT_END() 1189e0547311SJiri Olsa }; 1190e0547311SJiri Olsa 11916f6b6594SJiri Olsa static int perf_stat__get_socket(struct perf_stat_config *config __maybe_unused, 1192f854839bSJiri Olsa struct perf_cpu_map *map, int cpu) 11931fe7a300SJiri Olsa { 11941fe7a300SJiri Olsa return cpu_map__get_socket(map, cpu, NULL); 11951fe7a300SJiri Olsa } 11961fe7a300SJiri Olsa 1197db5742b6SKan Liang static int perf_stat__get_die(struct perf_stat_config *config __maybe_unused, 1198f854839bSJiri Olsa struct perf_cpu_map *map, int cpu) 1199db5742b6SKan Liang { 1200db5742b6SKan Liang return cpu_map__get_die(map, cpu, NULL); 1201db5742b6SKan Liang } 1202db5742b6SKan Liang 12036f6b6594SJiri Olsa static int perf_stat__get_core(struct perf_stat_config *config __maybe_unused, 1204f854839bSJiri Olsa struct perf_cpu_map *map, int cpu) 12051fe7a300SJiri Olsa { 12061fe7a300SJiri Olsa return cpu_map__get_core(map, cpu, NULL); 12071fe7a300SJiri Olsa } 12081fe7a300SJiri Olsa 120986895b48SJiri Olsa static int perf_stat__get_node(struct perf_stat_config *config __maybe_unused, 121086895b48SJiri Olsa struct perf_cpu_map *map, int cpu) 121186895b48SJiri Olsa { 121286895b48SJiri Olsa return cpu_map__get_node(map, cpu, NULL); 121386895b48SJiri Olsa } 121486895b48SJiri Olsa 12156f6b6594SJiri Olsa static int perf_stat__get_aggr(struct perf_stat_config *config, 1216f854839bSJiri Olsa aggr_get_id_t get_id, struct perf_cpu_map *map, int idx) 12171e5a2931SJiri Olsa { 12181e5a2931SJiri Olsa int cpu; 12191e5a2931SJiri Olsa 12201e5a2931SJiri Olsa if (idx >= map->nr) 12211e5a2931SJiri Olsa return -1; 12221e5a2931SJiri Olsa 12231e5a2931SJiri Olsa cpu = map->map[idx]; 12241e5a2931SJiri Olsa 12256f6b6594SJiri Olsa if (config->cpus_aggr_map->map[cpu] == -1) 12266f6b6594SJiri Olsa config->cpus_aggr_map->map[cpu] = get_id(config, map, idx); 12271e5a2931SJiri Olsa 12286f6b6594SJiri Olsa return config->cpus_aggr_map->map[cpu]; 12291e5a2931SJiri Olsa } 12301e5a2931SJiri Olsa 12316f6b6594SJiri Olsa static int perf_stat__get_socket_cached(struct perf_stat_config *config, 1232f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 12331e5a2931SJiri Olsa { 12346f6b6594SJiri Olsa return perf_stat__get_aggr(config, perf_stat__get_socket, map, idx); 12351e5a2931SJiri Olsa } 12361e5a2931SJiri Olsa 1237db5742b6SKan Liang static int perf_stat__get_die_cached(struct perf_stat_config *config, 1238f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 1239db5742b6SKan Liang { 1240db5742b6SKan Liang return perf_stat__get_aggr(config, perf_stat__get_die, map, idx); 1241db5742b6SKan Liang } 1242db5742b6SKan Liang 12436f6b6594SJiri Olsa static int perf_stat__get_core_cached(struct perf_stat_config *config, 1244f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 12451e5a2931SJiri Olsa { 12466f6b6594SJiri Olsa return perf_stat__get_aggr(config, perf_stat__get_core, map, idx); 12471e5a2931SJiri Olsa } 12481e5a2931SJiri Olsa 124986895b48SJiri Olsa static int perf_stat__get_node_cached(struct perf_stat_config *config, 125086895b48SJiri Olsa struct perf_cpu_map *map, int idx) 125186895b48SJiri Olsa { 125286895b48SJiri Olsa return perf_stat__get_aggr(config, perf_stat__get_node, map, idx); 125386895b48SJiri Olsa } 125486895b48SJiri Olsa 12554fc4d8dfSJin Yao static bool term_percore_set(void) 12564fc4d8dfSJin Yao { 125732dcd021SJiri Olsa struct evsel *counter; 12584fc4d8dfSJin Yao 12594fc4d8dfSJin Yao evlist__for_each_entry(evsel_list, counter) { 12604fc4d8dfSJin Yao if (counter->percore) 12614fc4d8dfSJin Yao return true; 12624fc4d8dfSJin Yao } 12634fc4d8dfSJin Yao 12644fc4d8dfSJin Yao return false; 12654fc4d8dfSJin Yao } 12664fc4d8dfSJin Yao 126786ee6e18SStephane Eranian static int perf_stat_init_aggr_mode(void) 126886ee6e18SStephane Eranian { 12691e5a2931SJiri Olsa int nr; 12701e5a2931SJiri Olsa 1271421a50f3SJiri Olsa switch (stat_config.aggr_mode) { 127286ee6e18SStephane Eranian case AGGR_SOCKET: 1273f72f901dSJiri Olsa if (cpu_map__build_socket_map(evsel_list->core.cpus, &stat_config.aggr_map)) { 127486ee6e18SStephane Eranian perror("cannot build socket map"); 127586ee6e18SStephane Eranian return -1; 127686ee6e18SStephane Eranian } 12776f6b6594SJiri Olsa stat_config.aggr_get_id = perf_stat__get_socket_cached; 127886ee6e18SStephane Eranian break; 1279db5742b6SKan Liang case AGGR_DIE: 1280f72f901dSJiri Olsa if (cpu_map__build_die_map(evsel_list->core.cpus, &stat_config.aggr_map)) { 1281db5742b6SKan Liang perror("cannot build die map"); 1282db5742b6SKan Liang return -1; 1283db5742b6SKan Liang } 1284db5742b6SKan Liang stat_config.aggr_get_id = perf_stat__get_die_cached; 1285db5742b6SKan Liang break; 128612c08a9fSStephane Eranian case AGGR_CORE: 1287f72f901dSJiri Olsa if (cpu_map__build_core_map(evsel_list->core.cpus, &stat_config.aggr_map)) { 128812c08a9fSStephane Eranian perror("cannot build core map"); 128912c08a9fSStephane Eranian return -1; 129012c08a9fSStephane Eranian } 12916f6b6594SJiri Olsa stat_config.aggr_get_id = perf_stat__get_core_cached; 129212c08a9fSStephane Eranian break; 129386895b48SJiri Olsa case AGGR_NODE: 129486895b48SJiri Olsa if (cpu_map__build_node_map(evsel_list->core.cpus, &stat_config.aggr_map)) { 129586895b48SJiri Olsa perror("cannot build core map"); 129686895b48SJiri Olsa return -1; 129786895b48SJiri Olsa } 129886895b48SJiri Olsa stat_config.aggr_get_id = perf_stat__get_node_cached; 129986895b48SJiri Olsa break; 130086ee6e18SStephane Eranian case AGGR_NONE: 13014fc4d8dfSJin Yao if (term_percore_set()) { 1302f72f901dSJiri Olsa if (cpu_map__build_core_map(evsel_list->core.cpus, 13034fc4d8dfSJin Yao &stat_config.aggr_map)) { 13044fc4d8dfSJin Yao perror("cannot build core map"); 13054fc4d8dfSJin Yao return -1; 13064fc4d8dfSJin Yao } 13074fc4d8dfSJin Yao stat_config.aggr_get_id = perf_stat__get_core_cached; 13084fc4d8dfSJin Yao } 13094fc4d8dfSJin Yao break; 131086ee6e18SStephane Eranian case AGGR_GLOBAL: 131132b8af82SJiri Olsa case AGGR_THREAD: 1312208df99eSJiri Olsa case AGGR_UNSET: 131386ee6e18SStephane Eranian default: 131486ee6e18SStephane Eranian break; 131586ee6e18SStephane Eranian } 13161e5a2931SJiri Olsa 13171e5a2931SJiri Olsa /* 13181e5a2931SJiri Olsa * The evsel_list->cpus is the base we operate on, 13191e5a2931SJiri Olsa * taking the highest cpu number to be the size of 13201e5a2931SJiri Olsa * the aggregation translate cpumap. 13211e5a2931SJiri Olsa */ 13224256d434SJiri Olsa nr = perf_cpu_map__max(evsel_list->core.cpus); 1323315c0a1fSJiri Olsa stat_config.cpus_aggr_map = perf_cpu_map__empty_new(nr + 1); 13246f6b6594SJiri Olsa return stat_config.cpus_aggr_map ? 0 : -ENOMEM; 132586ee6e18SStephane Eranian } 132686ee6e18SStephane Eranian 1327544c2ae7SMasami Hiramatsu static void perf_stat__exit_aggr_mode(void) 1328544c2ae7SMasami Hiramatsu { 132938f01d8dSJiri Olsa perf_cpu_map__put(stat_config.aggr_map); 133038f01d8dSJiri Olsa perf_cpu_map__put(stat_config.cpus_aggr_map); 13316f6b6594SJiri Olsa stat_config.aggr_map = NULL; 13326f6b6594SJiri Olsa stat_config.cpus_aggr_map = NULL; 1333544c2ae7SMasami Hiramatsu } 1334544c2ae7SMasami Hiramatsu 1335f854839bSJiri Olsa static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *map, int idx) 133668d702f7SJiri Olsa { 133768d702f7SJiri Olsa int cpu; 133868d702f7SJiri Olsa 133968d702f7SJiri Olsa if (idx > map->nr) 134068d702f7SJiri Olsa return -1; 134168d702f7SJiri Olsa 134268d702f7SJiri Olsa cpu = map->map[idx]; 134368d702f7SJiri Olsa 1344da8a58b5SJan Stancek if (cpu >= env->nr_cpus_avail) 134568d702f7SJiri Olsa return -1; 134668d702f7SJiri Olsa 134768d702f7SJiri Olsa return cpu; 134868d702f7SJiri Olsa } 134968d702f7SJiri Olsa 1350f854839bSJiri Olsa static int perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data) 135168d702f7SJiri Olsa { 135268d702f7SJiri Olsa struct perf_env *env = data; 135368d702f7SJiri Olsa int cpu = perf_env__get_cpu(env, map, idx); 135468d702f7SJiri Olsa 135568d702f7SJiri Olsa return cpu == -1 ? -1 : env->cpu[cpu].socket_id; 135668d702f7SJiri Olsa } 135768d702f7SJiri Olsa 1358f854839bSJiri Olsa static int perf_env__get_die(struct perf_cpu_map *map, int idx, void *data) 1359db5742b6SKan Liang { 1360db5742b6SKan Liang struct perf_env *env = data; 1361db5742b6SKan Liang int die_id = -1, cpu = perf_env__get_cpu(env, map, idx); 1362db5742b6SKan Liang 1363db5742b6SKan Liang if (cpu != -1) { 1364db5742b6SKan Liang /* 1365db5742b6SKan Liang * Encode socket in bit range 15:8 1366db5742b6SKan Liang * die_id is relative to socket, 1367db5742b6SKan Liang * we need a global id. So we combine 1368db5742b6SKan Liang * socket + die id 1369db5742b6SKan Liang */ 1370db5742b6SKan Liang if (WARN_ONCE(env->cpu[cpu].socket_id >> 8, "The socket id number is too big.\n")) 1371db5742b6SKan Liang return -1; 1372db5742b6SKan Liang 1373db5742b6SKan Liang if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n")) 1374db5742b6SKan Liang return -1; 1375db5742b6SKan Liang 1376db5742b6SKan Liang die_id = (env->cpu[cpu].socket_id << 8) | (env->cpu[cpu].die_id & 0xff); 1377db5742b6SKan Liang } 1378db5742b6SKan Liang 1379db5742b6SKan Liang return die_id; 1380db5742b6SKan Liang } 1381db5742b6SKan Liang 1382f854839bSJiri Olsa static int perf_env__get_core(struct perf_cpu_map *map, int idx, void *data) 138368d702f7SJiri Olsa { 138468d702f7SJiri Olsa struct perf_env *env = data; 138568d702f7SJiri Olsa int core = -1, cpu = perf_env__get_cpu(env, map, idx); 138668d702f7SJiri Olsa 138768d702f7SJiri Olsa if (cpu != -1) { 138868d702f7SJiri Olsa /* 1389db5742b6SKan Liang * Encode socket in bit range 31:24 1390db5742b6SKan Liang * encode die id in bit range 23:16 1391db5742b6SKan Liang * core_id is relative to socket and die, 139268d702f7SJiri Olsa * we need a global id. So we combine 1393db5742b6SKan Liang * socket + die id + core id 139468d702f7SJiri Olsa */ 1395db5742b6SKan Liang if (WARN_ONCE(env->cpu[cpu].socket_id >> 8, "The socket id number is too big.\n")) 1396db5742b6SKan Liang return -1; 1397db5742b6SKan Liang 1398db5742b6SKan Liang if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n")) 1399db5742b6SKan Liang return -1; 1400db5742b6SKan Liang 1401db5742b6SKan Liang if (WARN_ONCE(env->cpu[cpu].core_id >> 16, "The core id number is too big.\n")) 1402db5742b6SKan Liang return -1; 1403db5742b6SKan Liang 1404db5742b6SKan Liang core = (env->cpu[cpu].socket_id << 24) | 1405db5742b6SKan Liang (env->cpu[cpu].die_id << 16) | 1406db5742b6SKan Liang (env->cpu[cpu].core_id & 0xffff); 140768d702f7SJiri Olsa } 140868d702f7SJiri Olsa 140968d702f7SJiri Olsa return core; 141068d702f7SJiri Olsa } 141168d702f7SJiri Olsa 141286895b48SJiri Olsa static int perf_env__get_node(struct perf_cpu_map *map, int idx, void *data) 141386895b48SJiri Olsa { 141486895b48SJiri Olsa int cpu = perf_env__get_cpu(data, map, idx); 141586895b48SJiri Olsa 141686895b48SJiri Olsa return perf_env__numa_node(data, cpu); 141786895b48SJiri Olsa } 141886895b48SJiri Olsa 1419f854839bSJiri Olsa static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus, 1420f854839bSJiri Olsa struct perf_cpu_map **sockp) 142168d702f7SJiri Olsa { 142268d702f7SJiri Olsa return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env); 142368d702f7SJiri Olsa } 142468d702f7SJiri Olsa 1425f854839bSJiri Olsa static int perf_env__build_die_map(struct perf_env *env, struct perf_cpu_map *cpus, 1426f854839bSJiri Olsa struct perf_cpu_map **diep) 1427db5742b6SKan Liang { 1428db5742b6SKan Liang return cpu_map__build_map(cpus, diep, perf_env__get_die, env); 1429db5742b6SKan Liang } 1430db5742b6SKan Liang 1431f854839bSJiri Olsa static int perf_env__build_core_map(struct perf_env *env, struct perf_cpu_map *cpus, 1432f854839bSJiri Olsa struct perf_cpu_map **corep) 143368d702f7SJiri Olsa { 143468d702f7SJiri Olsa return cpu_map__build_map(cpus, corep, perf_env__get_core, env); 143568d702f7SJiri Olsa } 143668d702f7SJiri Olsa 143786895b48SJiri Olsa static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *cpus, 143886895b48SJiri Olsa struct perf_cpu_map **nodep) 143986895b48SJiri Olsa { 144086895b48SJiri Olsa return cpu_map__build_map(cpus, nodep, perf_env__get_node, env); 144186895b48SJiri Olsa } 144286895b48SJiri Olsa 14436f6b6594SJiri Olsa static int perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused, 1444f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 144568d702f7SJiri Olsa { 144668d702f7SJiri Olsa return perf_env__get_socket(map, idx, &perf_stat.session->header.env); 144768d702f7SJiri Olsa } 1448db5742b6SKan Liang static int perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused, 1449f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 1450db5742b6SKan Liang { 1451db5742b6SKan Liang return perf_env__get_die(map, idx, &perf_stat.session->header.env); 1452db5742b6SKan Liang } 145368d702f7SJiri Olsa 14546f6b6594SJiri Olsa static int perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused, 1455f854839bSJiri Olsa struct perf_cpu_map *map, int idx) 145668d702f7SJiri Olsa { 145768d702f7SJiri Olsa return perf_env__get_core(map, idx, &perf_stat.session->header.env); 145868d702f7SJiri Olsa } 145968d702f7SJiri Olsa 146086895b48SJiri Olsa static int perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused, 146186895b48SJiri Olsa struct perf_cpu_map *map, int idx) 146286895b48SJiri Olsa { 146386895b48SJiri Olsa return perf_env__get_node(map, idx, &perf_stat.session->header.env); 146486895b48SJiri Olsa } 146586895b48SJiri Olsa 146668d702f7SJiri Olsa static int perf_stat_init_aggr_mode_file(struct perf_stat *st) 146768d702f7SJiri Olsa { 146868d702f7SJiri Olsa struct perf_env *env = &st->session->header.env; 146968d702f7SJiri Olsa 147068d702f7SJiri Olsa switch (stat_config.aggr_mode) { 147168d702f7SJiri Olsa case AGGR_SOCKET: 1472f72f901dSJiri Olsa if (perf_env__build_socket_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) { 147368d702f7SJiri Olsa perror("cannot build socket map"); 147468d702f7SJiri Olsa return -1; 147568d702f7SJiri Olsa } 14766f6b6594SJiri Olsa stat_config.aggr_get_id = perf_stat__get_socket_file; 147768d702f7SJiri Olsa break; 1478db5742b6SKan Liang case AGGR_DIE: 1479f72f901dSJiri Olsa if (perf_env__build_die_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) { 1480db5742b6SKan Liang perror("cannot build die map"); 1481db5742b6SKan Liang return -1; 1482db5742b6SKan Liang } 1483db5742b6SKan Liang stat_config.aggr_get_id = perf_stat__get_die_file; 1484db5742b6SKan Liang break; 148568d702f7SJiri Olsa case AGGR_CORE: 1486f72f901dSJiri Olsa if (perf_env__build_core_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) { 148768d702f7SJiri Olsa perror("cannot build core map"); 148868d702f7SJiri Olsa return -1; 148968d702f7SJiri Olsa } 14906f6b6594SJiri Olsa stat_config.aggr_get_id = perf_stat__get_core_file; 149168d702f7SJiri Olsa break; 149286895b48SJiri Olsa case AGGR_NODE: 149386895b48SJiri Olsa if (perf_env__build_node_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) { 149486895b48SJiri Olsa perror("cannot build core map"); 149586895b48SJiri Olsa return -1; 149686895b48SJiri Olsa } 149786895b48SJiri Olsa stat_config.aggr_get_id = perf_stat__get_node_file; 149886895b48SJiri Olsa break; 149968d702f7SJiri Olsa case AGGR_NONE: 150068d702f7SJiri Olsa case AGGR_GLOBAL: 150168d702f7SJiri Olsa case AGGR_THREAD: 150268d702f7SJiri Olsa case AGGR_UNSET: 150368d702f7SJiri Olsa default: 150468d702f7SJiri Olsa break; 150568d702f7SJiri Olsa } 150668d702f7SJiri Olsa 150768d702f7SJiri Olsa return 0; 150868d702f7SJiri Olsa } 150968d702f7SJiri Olsa 15102cba3ffbSIngo Molnar /* 15112cba3ffbSIngo Molnar * Add default attributes, if there were no attributes specified or 15122cba3ffbSIngo Molnar * if -d/--detailed, -d -d or -d -d -d is used: 15132cba3ffbSIngo Molnar */ 15142cba3ffbSIngo Molnar static int add_default_attributes(void) 15152cba3ffbSIngo Molnar { 151644b1e60aSAndi Kleen int err; 15179dec4473SAndi Kleen struct perf_event_attr default_attrs0[] = { 1518b070a547SArnaldo Carvalho de Melo 1519b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, 1520b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, 1521b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, 1522b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, 1523b070a547SArnaldo Carvalho de Melo 1524b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, 15259dec4473SAndi Kleen }; 15269dec4473SAndi Kleen struct perf_event_attr frontend_attrs[] = { 1527b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, 15289dec4473SAndi Kleen }; 15299dec4473SAndi Kleen struct perf_event_attr backend_attrs[] = { 1530b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, 15319dec4473SAndi Kleen }; 15329dec4473SAndi Kleen struct perf_event_attr default_attrs1[] = { 1533b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, 1534b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, 1535b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, 1536b070a547SArnaldo Carvalho de Melo 1537b070a547SArnaldo Carvalho de Melo }; 1538b070a547SArnaldo Carvalho de Melo 1539b070a547SArnaldo Carvalho de Melo /* 1540b070a547SArnaldo Carvalho de Melo * Detailed stats (-d), covering the L1 and last level data caches: 1541b070a547SArnaldo Carvalho de Melo */ 1542b070a547SArnaldo Carvalho de Melo struct perf_event_attr detailed_attrs[] = { 1543b070a547SArnaldo Carvalho de Melo 1544b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1545b070a547SArnaldo Carvalho de Melo .config = 1546b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1547b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1548b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1549b070a547SArnaldo Carvalho de Melo 1550b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1551b070a547SArnaldo Carvalho de Melo .config = 1552b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1553b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1554b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1555b070a547SArnaldo Carvalho de Melo 1556b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1557b070a547SArnaldo Carvalho de Melo .config = 1558b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1559b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1560b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1561b070a547SArnaldo Carvalho de Melo 1562b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1563b070a547SArnaldo Carvalho de Melo .config = 1564b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1565b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1566b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1567b070a547SArnaldo Carvalho de Melo }; 1568b070a547SArnaldo Carvalho de Melo 1569b070a547SArnaldo Carvalho de Melo /* 1570b070a547SArnaldo Carvalho de Melo * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: 1571b070a547SArnaldo Carvalho de Melo */ 1572b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_detailed_attrs[] = { 1573b070a547SArnaldo Carvalho de Melo 1574b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1575b070a547SArnaldo Carvalho de Melo .config = 1576b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1577b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1578b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1579b070a547SArnaldo Carvalho de Melo 1580b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1581b070a547SArnaldo Carvalho de Melo .config = 1582b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1583b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1584b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1585b070a547SArnaldo Carvalho de Melo 1586b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1587b070a547SArnaldo Carvalho de Melo .config = 1588b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1589b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1590b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1591b070a547SArnaldo Carvalho de Melo 1592b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1593b070a547SArnaldo Carvalho de Melo .config = 1594b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1595b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1596b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1597b070a547SArnaldo Carvalho de Melo 1598b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1599b070a547SArnaldo Carvalho de Melo .config = 1600b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1601b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1602b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1603b070a547SArnaldo Carvalho de Melo 1604b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1605b070a547SArnaldo Carvalho de Melo .config = 1606b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1607b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1608b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1609b070a547SArnaldo Carvalho de Melo 1610b070a547SArnaldo Carvalho de Melo }; 1611b070a547SArnaldo Carvalho de Melo 1612b070a547SArnaldo Carvalho de Melo /* 1613b070a547SArnaldo Carvalho de Melo * Very, very detailed stats (-d -d -d), adding prefetch events: 1614b070a547SArnaldo Carvalho de Melo */ 1615b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_very_detailed_attrs[] = { 1616b070a547SArnaldo Carvalho de Melo 1617b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1618b070a547SArnaldo Carvalho de Melo .config = 1619b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1620b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1621b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1622b070a547SArnaldo Carvalho de Melo 1623b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1624b070a547SArnaldo Carvalho de Melo .config = 1625b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1626b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1627b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1628b070a547SArnaldo Carvalho de Melo }; 1629a5cfa621SJiri Olsa struct parse_events_error errinfo; 1630b070a547SArnaldo Carvalho de Melo 16312cba3ffbSIngo Molnar /* Set attrs if no event is selected and !null_run: */ 1632aea0dca1SJiri Olsa if (stat_config.null_run) 16332cba3ffbSIngo Molnar return 0; 16342cba3ffbSIngo Molnar 1635a910e466SIan Rogers bzero(&errinfo, sizeof(errinfo)); 16364cabc3d1SAndi Kleen if (transaction_run) { 1637742d92ffSThomas Richter /* Handle -T as -M transaction. Once platform specific metrics 1638742d92ffSThomas Richter * support has been added to the json files, all archictures 1639742d92ffSThomas Richter * will use this approach. To determine transaction support 1640742d92ffSThomas Richter * on an architecture test for such a metric name. 1641742d92ffSThomas Richter */ 1642742d92ffSThomas Richter if (metricgroup__has_metric("transaction")) { 1643742d92ffSThomas Richter struct option opt = { .value = &evsel_list }; 1644742d92ffSThomas Richter 1645742d92ffSThomas Richter return metricgroup__parse_groups(&opt, "transaction", 164605530a79SIan Rogers stat_config.metric_no_group, 164705530a79SIan Rogers stat_config.metric_no_merge, 1648d0192fdbSJiri Olsa &stat_config.metric_events); 1649742d92ffSThomas Richter } 1650742d92ffSThomas Richter 16514cabc3d1SAndi Kleen if (pmu_have_event("cpu", "cycles-ct") && 16524cabc3d1SAndi Kleen pmu_have_event("cpu", "el-start")) 1653fca32340SThomas Richter err = parse_events(evsel_list, transaction_attrs, 1654fca32340SThomas Richter &errinfo); 16554cabc3d1SAndi Kleen else 1656fca32340SThomas Richter err = parse_events(evsel_list, 1657fca32340SThomas Richter transaction_limited_attrs, 1658fca32340SThomas Richter &errinfo); 1659a454742cSJiri Olsa if (err) { 16604cabc3d1SAndi Kleen fprintf(stderr, "Cannot set up transaction events\n"); 1661a5cfa621SJiri Olsa parse_events_print_error(&errinfo, transaction_attrs); 16624cabc3d1SAndi Kleen return -1; 16634cabc3d1SAndi Kleen } 16644cabc3d1SAndi Kleen return 0; 16654cabc3d1SAndi Kleen } 16664cabc3d1SAndi Kleen 1667daefd0bcSKan Liang if (smi_cost) { 1668daefd0bcSKan Liang int smi; 1669daefd0bcSKan Liang 1670daefd0bcSKan Liang if (sysfs__read_int(FREEZE_ON_SMI_PATH, &smi) < 0) { 1671daefd0bcSKan Liang fprintf(stderr, "freeze_on_smi is not supported.\n"); 1672daefd0bcSKan Liang return -1; 1673daefd0bcSKan Liang } 1674daefd0bcSKan Liang 1675daefd0bcSKan Liang if (!smi) { 1676daefd0bcSKan Liang if (sysfs__write_int(FREEZE_ON_SMI_PATH, 1) < 0) { 1677daefd0bcSKan Liang fprintf(stderr, "Failed to set freeze_on_smi.\n"); 1678daefd0bcSKan Liang return -1; 1679daefd0bcSKan Liang } 1680daefd0bcSKan Liang smi_reset = true; 1681daefd0bcSKan Liang } 1682daefd0bcSKan Liang 1683daefd0bcSKan Liang if (pmu_have_event("msr", "aperf") && 1684daefd0bcSKan Liang pmu_have_event("msr", "smi")) { 1685daefd0bcSKan Liang if (!force_metric_only) 16860ce5aa02SJiri Olsa stat_config.metric_only = true; 1687a5cfa621SJiri Olsa err = parse_events(evsel_list, smi_cost_attrs, &errinfo); 1688daefd0bcSKan Liang } else { 1689daefd0bcSKan Liang fprintf(stderr, "To measure SMI cost, it needs " 1690daefd0bcSKan Liang "msr/aperf/, msr/smi/ and cpu/cycles/ support\n"); 1691a5cfa621SJiri Olsa parse_events_print_error(&errinfo, smi_cost_attrs); 1692daefd0bcSKan Liang return -1; 1693daefd0bcSKan Liang } 1694daefd0bcSKan Liang if (err) { 1695a910e466SIan Rogers parse_events_print_error(&errinfo, smi_cost_attrs); 1696daefd0bcSKan Liang fprintf(stderr, "Cannot set up SMI cost events\n"); 1697daefd0bcSKan Liang return -1; 1698daefd0bcSKan Liang } 1699daefd0bcSKan Liang return 0; 1700daefd0bcSKan Liang } 1701daefd0bcSKan Liang 170244b1e60aSAndi Kleen if (topdown_run) { 170344b1e60aSAndi Kleen char *str = NULL; 170444b1e60aSAndi Kleen bool warn = false; 170544b1e60aSAndi Kleen 170655c36a9fSAndi Kleen if (!force_metric_only) 170755c36a9fSAndi Kleen stat_config.metric_only = true; 170855c36a9fSAndi Kleen 170955c36a9fSAndi Kleen if (topdown_filter_events(topdown_metric_attrs, &str, 1) < 0) { 171055c36a9fSAndi Kleen pr_err("Out of memory\n"); 171155c36a9fSAndi Kleen return -1; 171255c36a9fSAndi Kleen } 171355c36a9fSAndi Kleen if (topdown_metric_attrs[0] && str) { 171455c36a9fSAndi Kleen if (!stat_config.interval && !stat_config.metric_only) { 171555c36a9fSAndi Kleen fprintf(stat_config.output, 171655c36a9fSAndi Kleen "Topdown accuracy may decrease when measuring long periods.\n" 171755c36a9fSAndi Kleen "Please print the result regularly, e.g. -I1000\n"); 171855c36a9fSAndi Kleen } 171955c36a9fSAndi Kleen goto setup_metrics; 172055c36a9fSAndi Kleen } 172155c36a9fSAndi Kleen 172255c36a9fSAndi Kleen zfree(&str); 172355c36a9fSAndi Kleen 172444b1e60aSAndi Kleen if (stat_config.aggr_mode != AGGR_GLOBAL && 172544b1e60aSAndi Kleen stat_config.aggr_mode != AGGR_CORE) { 172644b1e60aSAndi Kleen pr_err("top down event configuration requires --per-core mode\n"); 172744b1e60aSAndi Kleen return -1; 172844b1e60aSAndi Kleen } 172944b1e60aSAndi Kleen stat_config.aggr_mode = AGGR_CORE; 173044b1e60aSAndi Kleen if (nr_cgroups || !target__has_cpu(&target)) { 173144b1e60aSAndi Kleen pr_err("top down event configuration requires system-wide mode (-a)\n"); 173244b1e60aSAndi Kleen return -1; 173344b1e60aSAndi Kleen } 173444b1e60aSAndi Kleen 173544b1e60aSAndi Kleen if (topdown_filter_events(topdown_attrs, &str, 173644b1e60aSAndi Kleen arch_topdown_check_group(&warn)) < 0) { 173744b1e60aSAndi Kleen pr_err("Out of memory\n"); 173844b1e60aSAndi Kleen return -1; 173944b1e60aSAndi Kleen } 174044b1e60aSAndi Kleen if (topdown_attrs[0] && str) { 174144b1e60aSAndi Kleen if (warn) 174244b1e60aSAndi Kleen arch_topdown_group_warn(); 174355c36a9fSAndi Kleen setup_metrics: 1744a5cfa621SJiri Olsa err = parse_events(evsel_list, str, &errinfo); 174544b1e60aSAndi Kleen if (err) { 174644b1e60aSAndi Kleen fprintf(stderr, 174744b1e60aSAndi Kleen "Cannot set up top down events %s: %d\n", 174844b1e60aSAndi Kleen str, err); 1749a5cfa621SJiri Olsa parse_events_print_error(&errinfo, str); 1750c74b0503SLeo Yan free(str); 175144b1e60aSAndi Kleen return -1; 175244b1e60aSAndi Kleen } 175344b1e60aSAndi Kleen } else { 175444b1e60aSAndi Kleen fprintf(stderr, "System does not support topdown\n"); 175544b1e60aSAndi Kleen return -1; 175644b1e60aSAndi Kleen } 175744b1e60aSAndi Kleen free(str); 175844b1e60aSAndi Kleen } 175944b1e60aSAndi Kleen 17606484d2f9SJiri Olsa if (!evsel_list->core.nr_entries) { 1761a1f3d567SNamhyung Kim if (target__has_cpu(&target)) 1762a1f3d567SNamhyung Kim default_attrs0[0].config = PERF_COUNT_SW_CPU_CLOCK; 1763a1f3d567SNamhyung Kim 1764e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, default_attrs0) < 0) 17659dec4473SAndi Kleen return -1; 17669dec4473SAndi Kleen if (pmu_have_event("cpu", "stalled-cycles-frontend")) { 1767e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, frontend_attrs) < 0) 17689dec4473SAndi Kleen return -1; 17699dec4473SAndi Kleen } 17709dec4473SAndi Kleen if (pmu_have_event("cpu", "stalled-cycles-backend")) { 1771e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, backend_attrs) < 0) 17729dec4473SAndi Kleen return -1; 17739dec4473SAndi Kleen } 1774e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, default_attrs1) < 0) 17752cba3ffbSIngo Molnar return -1; 17762cba3ffbSIngo Molnar } 17772cba3ffbSIngo Molnar 17782cba3ffbSIngo Molnar /* Detailed events get appended to the event list: */ 17792cba3ffbSIngo Molnar 17802cba3ffbSIngo Molnar if (detailed_run < 1) 17812cba3ffbSIngo Molnar return 0; 17822cba3ffbSIngo Molnar 17832cba3ffbSIngo Molnar /* Append detailed run extra attributes: */ 1784e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) 17852cba3ffbSIngo Molnar return -1; 17862cba3ffbSIngo Molnar 17872cba3ffbSIngo Molnar if (detailed_run < 2) 17882cba3ffbSIngo Molnar return 0; 17892cba3ffbSIngo Molnar 17902cba3ffbSIngo Molnar /* Append very detailed run extra attributes: */ 1791e251abeeSArnaldo Carvalho de Melo if (evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) 17922cba3ffbSIngo Molnar return -1; 17932cba3ffbSIngo Molnar 17942cba3ffbSIngo Molnar if (detailed_run < 3) 17952cba3ffbSIngo Molnar return 0; 17962cba3ffbSIngo Molnar 17972cba3ffbSIngo Molnar /* Append very, very detailed run extra attributes: */ 1798e251abeeSArnaldo Carvalho de Melo return evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); 17992cba3ffbSIngo Molnar } 18002cba3ffbSIngo Molnar 18018a59f3ccSJiri Olsa static const char * const stat_record_usage[] = { 18024979d0c7SJiri Olsa "perf stat record [<options>]", 18034979d0c7SJiri Olsa NULL, 18044979d0c7SJiri Olsa }; 18054979d0c7SJiri Olsa 18063ba78bd0SJiri Olsa static void init_features(struct perf_session *session) 18073ba78bd0SJiri Olsa { 18083ba78bd0SJiri Olsa int feat; 18093ba78bd0SJiri Olsa 18103ba78bd0SJiri Olsa for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) 18113ba78bd0SJiri Olsa perf_header__set_feat(&session->header, feat); 18123ba78bd0SJiri Olsa 18138002a63fSJiri Olsa perf_header__clear_feat(&session->header, HEADER_DIR_FORMAT); 18143ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_BUILD_ID); 18153ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); 18163ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); 18173ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_AUXTRACE); 18183ba78bd0SJiri Olsa } 18193ba78bd0SJiri Olsa 18204979d0c7SJiri Olsa static int __cmd_record(int argc, const char **argv) 18214979d0c7SJiri Olsa { 18224979d0c7SJiri Olsa struct perf_session *session; 18238ceb41d7SJiri Olsa struct perf_data *data = &perf_stat.data; 18244979d0c7SJiri Olsa 18258a59f3ccSJiri Olsa argc = parse_options(argc, argv, stat_options, stat_record_usage, 18264979d0c7SJiri Olsa PARSE_OPT_STOP_AT_NON_OPTION); 18274979d0c7SJiri Olsa 18284979d0c7SJiri Olsa if (output_name) 18292d4f2799SJiri Olsa data->path = output_name; 18304979d0c7SJiri Olsa 1831d97ae04bSJiri Olsa if (stat_config.run_count != 1 || forever) { 1832e9d6db8eSJiri Olsa pr_err("Cannot use -r option with perf stat record.\n"); 1833e9d6db8eSJiri Olsa return -1; 1834e9d6db8eSJiri Olsa } 1835e9d6db8eSJiri Olsa 18368ceb41d7SJiri Olsa session = perf_session__new(data, false, NULL); 18376ef81c55SMamatha Inamdar if (IS_ERR(session)) { 18386ef81c55SMamatha Inamdar pr_err("Perf session creation failed\n"); 18396ef81c55SMamatha Inamdar return PTR_ERR(session); 18404979d0c7SJiri Olsa } 18414979d0c7SJiri Olsa 18423ba78bd0SJiri Olsa init_features(session); 18433ba78bd0SJiri Olsa 18444979d0c7SJiri Olsa session->evlist = evsel_list; 18454979d0c7SJiri Olsa perf_stat.session = session; 18464979d0c7SJiri Olsa perf_stat.record = true; 18474979d0c7SJiri Olsa return argc; 18484979d0c7SJiri Olsa } 18494979d0c7SJiri Olsa 185089f1688aSJiri Olsa static int process_stat_round_event(struct perf_session *session, 185189f1688aSJiri Olsa union perf_event *event) 1852a56f9390SJiri Olsa { 185372932371SJiri Olsa struct perf_record_stat_round *stat_round = &event->stat_round; 185432dcd021SJiri Olsa struct evsel *counter; 1855a56f9390SJiri Olsa struct timespec tsh, *ts = NULL; 1856a56f9390SJiri Olsa const char **argv = session->header.env.cmdline_argv; 1857a56f9390SJiri Olsa int argc = session->header.env.nr_cmdline; 1858a56f9390SJiri Olsa 1859e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evsel_list, counter) 1860a56f9390SJiri Olsa perf_stat_process_counter(&stat_config, counter); 1861a56f9390SJiri Olsa 1862e3b03b6cSAndi Kleen if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL) 1863e3b03b6cSAndi Kleen update_stats(&walltime_nsecs_stats, stat_round->time); 1864a56f9390SJiri Olsa 1865e3b03b6cSAndi Kleen if (stat_config.interval && stat_round->time) { 1866bd48c63eSArnaldo Carvalho de Melo tsh.tv_sec = stat_round->time / NSEC_PER_SEC; 1867bd48c63eSArnaldo Carvalho de Melo tsh.tv_nsec = stat_round->time % NSEC_PER_SEC; 1868a56f9390SJiri Olsa ts = &tsh; 1869a56f9390SJiri Olsa } 1870a56f9390SJiri Olsa 1871a56f9390SJiri Olsa print_counters(ts, argc, argv); 1872a56f9390SJiri Olsa return 0; 1873a56f9390SJiri Olsa } 1874a56f9390SJiri Olsa 187562ba18baSJiri Olsa static 187689f1688aSJiri Olsa int process_stat_config_event(struct perf_session *session, 187789f1688aSJiri Olsa union perf_event *event) 187862ba18baSJiri Olsa { 187989f1688aSJiri Olsa struct perf_tool *tool = session->tool; 188068d702f7SJiri Olsa struct perf_stat *st = container_of(tool, struct perf_stat, tool); 188168d702f7SJiri Olsa 188262ba18baSJiri Olsa perf_event__read_stat_config(&stat_config, &event->stat_config); 188368d702f7SJiri Olsa 1884315c0a1fSJiri Olsa if (perf_cpu_map__empty(st->cpus)) { 188589af4e05SJiri Olsa if (st->aggr_mode != AGGR_UNSET) 188689af4e05SJiri Olsa pr_warning("warning: processing task data, aggregation mode not set\n"); 188789af4e05SJiri Olsa return 0; 188889af4e05SJiri Olsa } 188989af4e05SJiri Olsa 189089af4e05SJiri Olsa if (st->aggr_mode != AGGR_UNSET) 189189af4e05SJiri Olsa stat_config.aggr_mode = st->aggr_mode; 189289af4e05SJiri Olsa 18938ceb41d7SJiri Olsa if (perf_stat.data.is_pipe) 189468d702f7SJiri Olsa perf_stat_init_aggr_mode(); 189568d702f7SJiri Olsa else 189668d702f7SJiri Olsa perf_stat_init_aggr_mode_file(st); 189768d702f7SJiri Olsa 189862ba18baSJiri Olsa return 0; 189962ba18baSJiri Olsa } 190062ba18baSJiri Olsa 19011975d36eSJiri Olsa static int set_maps(struct perf_stat *st) 19021975d36eSJiri Olsa { 19031975d36eSJiri Olsa if (!st->cpus || !st->threads) 19041975d36eSJiri Olsa return 0; 19051975d36eSJiri Olsa 19061975d36eSJiri Olsa if (WARN_ONCE(st->maps_allocated, "stats double allocation\n")) 19071975d36eSJiri Olsa return -EINVAL; 19081975d36eSJiri Olsa 1909453fa030SJiri Olsa perf_evlist__set_maps(&evsel_list->core, st->cpus, st->threads); 19101975d36eSJiri Olsa 19111975d36eSJiri Olsa if (perf_evlist__alloc_stats(evsel_list, true)) 19121975d36eSJiri Olsa return -ENOMEM; 19131975d36eSJiri Olsa 19141975d36eSJiri Olsa st->maps_allocated = true; 19151975d36eSJiri Olsa return 0; 19161975d36eSJiri Olsa } 19171975d36eSJiri Olsa 19181975d36eSJiri Olsa static 191989f1688aSJiri Olsa int process_thread_map_event(struct perf_session *session, 192089f1688aSJiri Olsa union perf_event *event) 19211975d36eSJiri Olsa { 192289f1688aSJiri Olsa struct perf_tool *tool = session->tool; 19231975d36eSJiri Olsa struct perf_stat *st = container_of(tool, struct perf_stat, tool); 19241975d36eSJiri Olsa 19251975d36eSJiri Olsa if (st->threads) { 19261975d36eSJiri Olsa pr_warning("Extra thread map event, ignoring.\n"); 19271975d36eSJiri Olsa return 0; 19281975d36eSJiri Olsa } 19291975d36eSJiri Olsa 19301975d36eSJiri Olsa st->threads = thread_map__new_event(&event->thread_map); 19311975d36eSJiri Olsa if (!st->threads) 19321975d36eSJiri Olsa return -ENOMEM; 19331975d36eSJiri Olsa 19341975d36eSJiri Olsa return set_maps(st); 19351975d36eSJiri Olsa } 19361975d36eSJiri Olsa 19371975d36eSJiri Olsa static 193889f1688aSJiri Olsa int process_cpu_map_event(struct perf_session *session, 193989f1688aSJiri Olsa union perf_event *event) 19401975d36eSJiri Olsa { 194189f1688aSJiri Olsa struct perf_tool *tool = session->tool; 19421975d36eSJiri Olsa struct perf_stat *st = container_of(tool, struct perf_stat, tool); 1943f854839bSJiri Olsa struct perf_cpu_map *cpus; 19441975d36eSJiri Olsa 19451975d36eSJiri Olsa if (st->cpus) { 19461975d36eSJiri Olsa pr_warning("Extra cpu map event, ignoring.\n"); 19471975d36eSJiri Olsa return 0; 19481975d36eSJiri Olsa } 19491975d36eSJiri Olsa 19501975d36eSJiri Olsa cpus = cpu_map__new_data(&event->cpu_map.data); 19511975d36eSJiri Olsa if (!cpus) 19521975d36eSJiri Olsa return -ENOMEM; 19531975d36eSJiri Olsa 19541975d36eSJiri Olsa st->cpus = cpus; 19551975d36eSJiri Olsa return set_maps(st); 19561975d36eSJiri Olsa } 19571975d36eSJiri Olsa 19588a59f3ccSJiri Olsa static const char * const stat_report_usage[] = { 1959ba6039b6SJiri Olsa "perf stat report [<options>]", 1960ba6039b6SJiri Olsa NULL, 1961ba6039b6SJiri Olsa }; 1962ba6039b6SJiri Olsa 1963ba6039b6SJiri Olsa static struct perf_stat perf_stat = { 1964ba6039b6SJiri Olsa .tool = { 1965ba6039b6SJiri Olsa .attr = perf_event__process_attr, 1966fa6ea781SJiri Olsa .event_update = perf_event__process_event_update, 19671975d36eSJiri Olsa .thread_map = process_thread_map_event, 19681975d36eSJiri Olsa .cpu_map = process_cpu_map_event, 196962ba18baSJiri Olsa .stat_config = process_stat_config_event, 1970a56f9390SJiri Olsa .stat = perf_event__process_stat_event, 1971a56f9390SJiri Olsa .stat_round = process_stat_round_event, 1972ba6039b6SJiri Olsa }, 197389af4e05SJiri Olsa .aggr_mode = AGGR_UNSET, 1974ba6039b6SJiri Olsa }; 1975ba6039b6SJiri Olsa 1976ba6039b6SJiri Olsa static int __cmd_report(int argc, const char **argv) 1977ba6039b6SJiri Olsa { 1978ba6039b6SJiri Olsa struct perf_session *session; 1979ba6039b6SJiri Olsa const struct option options[] = { 1980ba6039b6SJiri Olsa OPT_STRING('i', "input", &input_name, "file", "input file name"), 198189af4e05SJiri Olsa OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode, 198289af4e05SJiri Olsa "aggregate counts per processor socket", AGGR_SOCKET), 1983db5742b6SKan Liang OPT_SET_UINT(0, "per-die", &perf_stat.aggr_mode, 1984db5742b6SKan Liang "aggregate counts per processor die", AGGR_DIE), 198589af4e05SJiri Olsa OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode, 198689af4e05SJiri Olsa "aggregate counts per physical processor core", AGGR_CORE), 198786895b48SJiri Olsa OPT_SET_UINT(0, "per-node", &perf_stat.aggr_mode, 198886895b48SJiri Olsa "aggregate counts per numa node", AGGR_NODE), 198989af4e05SJiri Olsa OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode, 199089af4e05SJiri Olsa "disable CPU count aggregation", AGGR_NONE), 1991ba6039b6SJiri Olsa OPT_END() 1992ba6039b6SJiri Olsa }; 1993ba6039b6SJiri Olsa struct stat st; 1994ba6039b6SJiri Olsa int ret; 1995ba6039b6SJiri Olsa 19968a59f3ccSJiri Olsa argc = parse_options(argc, argv, options, stat_report_usage, 0); 1997ba6039b6SJiri Olsa 1998ba6039b6SJiri Olsa if (!input_name || !strlen(input_name)) { 1999ba6039b6SJiri Olsa if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 2000ba6039b6SJiri Olsa input_name = "-"; 2001ba6039b6SJiri Olsa else 2002ba6039b6SJiri Olsa input_name = "perf.data"; 2003ba6039b6SJiri Olsa } 2004ba6039b6SJiri Olsa 20052d4f2799SJiri Olsa perf_stat.data.path = input_name; 20068ceb41d7SJiri Olsa perf_stat.data.mode = PERF_DATA_MODE_READ; 2007ba6039b6SJiri Olsa 20088ceb41d7SJiri Olsa session = perf_session__new(&perf_stat.data, false, &perf_stat.tool); 20096ef81c55SMamatha Inamdar if (IS_ERR(session)) 20106ef81c55SMamatha Inamdar return PTR_ERR(session); 2011ba6039b6SJiri Olsa 2012ba6039b6SJiri Olsa perf_stat.session = session; 2013ba6039b6SJiri Olsa stat_config.output = stderr; 2014ba6039b6SJiri Olsa evsel_list = session->evlist; 2015ba6039b6SJiri Olsa 2016ba6039b6SJiri Olsa ret = perf_session__process_events(session); 2017ba6039b6SJiri Olsa if (ret) 2018ba6039b6SJiri Olsa return ret; 2019ba6039b6SJiri Olsa 2020ba6039b6SJiri Olsa perf_session__delete(session); 2021ba6039b6SJiri Olsa return 0; 2022ba6039b6SJiri Olsa } 2023ba6039b6SJiri Olsa 2024e3ba76deSJiri Olsa static void setup_system_wide(int forks) 2025e3ba76deSJiri Olsa { 2026e3ba76deSJiri Olsa /* 2027e3ba76deSJiri Olsa * Make system wide (-a) the default target if 2028e3ba76deSJiri Olsa * no target was specified and one of following 2029e3ba76deSJiri Olsa * conditions is met: 2030e3ba76deSJiri Olsa * 2031e3ba76deSJiri Olsa * - there's no workload specified 2032e3ba76deSJiri Olsa * - there is workload specified but all requested 2033e3ba76deSJiri Olsa * events are system wide events 2034e3ba76deSJiri Olsa */ 2035e3ba76deSJiri Olsa if (!target__none(&target)) 2036e3ba76deSJiri Olsa return; 2037e3ba76deSJiri Olsa 2038e3ba76deSJiri Olsa if (!forks) 2039e3ba76deSJiri Olsa target.system_wide = true; 2040e3ba76deSJiri Olsa else { 204132dcd021SJiri Olsa struct evsel *counter; 2042e3ba76deSJiri Olsa 2043e3ba76deSJiri Olsa evlist__for_each_entry(evsel_list, counter) { 2044002a3d69SJin Yao if (!counter->core.system_wide && 2045002a3d69SJin Yao strcmp(counter->name, "duration_time")) { 2046e3ba76deSJiri Olsa return; 2047e3ba76deSJiri Olsa } 2048002a3d69SJin Yao } 2049e3ba76deSJiri Olsa 20506484d2f9SJiri Olsa if (evsel_list->core.nr_entries) 2051e3ba76deSJiri Olsa target.system_wide = true; 2052e3ba76deSJiri Olsa } 2053e3ba76deSJiri Olsa } 2054e3ba76deSJiri Olsa 2055b0ad8ea6SArnaldo Carvalho de Melo int cmd_stat(int argc, const char **argv) 205686470930SIngo Molnar { 2057b070a547SArnaldo Carvalho de Melo const char * const stat_usage[] = { 2058b070a547SArnaldo Carvalho de Melo "perf stat [<options>] [<command>]", 2059b070a547SArnaldo Carvalho de Melo NULL 2060b070a547SArnaldo Carvalho de Melo }; 2061cc03c542SNamhyung Kim int status = -EINVAL, run_idx; 20624aa9015fSStephane Eranian const char *mode; 20635821522eSJiri Olsa FILE *output = stderr; 2064f1f8ad52Syuzhoujian unsigned int interval, timeout; 2065ba6039b6SJiri Olsa const char * const stat_subcommands[] = { "record", "report" }; 206642202dd5SIngo Molnar 20675af52b51SStephane Eranian setlocale(LC_ALL, ""); 20685af52b51SStephane Eranian 20690f98b11cSJiri Olsa evsel_list = evlist__new(); 2070361c99a6SArnaldo Carvalho de Melo if (evsel_list == NULL) 2071361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 2072361c99a6SArnaldo Carvalho de Melo 20731669e509SWang Nan parse_events__shrink_config_terms(); 207451433eadSMichael Petlan 207551433eadSMichael Petlan /* String-parsing callback-based options would segfault when negated */ 207651433eadSMichael Petlan set_option_flag(stat_options, 'e', "event", PARSE_OPT_NONEG); 207751433eadSMichael Petlan set_option_flag(stat_options, 'M', "metrics", PARSE_OPT_NONEG); 207851433eadSMichael Petlan set_option_flag(stat_options, 'G', "cgroup", PARSE_OPT_NONEG); 207951433eadSMichael Petlan 20804979d0c7SJiri Olsa argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands, 20814979d0c7SJiri Olsa (const char **) stat_usage, 2082a0541234SAnton Blanchard PARSE_OPT_STOP_AT_NON_OPTION); 208337932c18SAndi Kleen perf_stat__collect_metric_expr(evsel_list); 2084fb4605baSAndi Kleen perf_stat__init_shadow_stats(); 2085d7470b6aSStephane Eranian 2086fa7070a3SJiri Olsa if (stat_config.csv_sep) { 2087fa7070a3SJiri Olsa stat_config.csv_output = true; 2088fa7070a3SJiri Olsa if (!strcmp(stat_config.csv_sep, "\\t")) 2089fa7070a3SJiri Olsa stat_config.csv_sep = "\t"; 20906edb78a2SJiri Olsa } else 2091fa7070a3SJiri Olsa stat_config.csv_sep = DEFAULT_SEPARATOR; 20926edb78a2SJiri Olsa 20934979d0c7SJiri Olsa if (argc && !strncmp(argv[0], "rec", 3)) { 20944979d0c7SJiri Olsa argc = __cmd_record(argc, argv); 20954979d0c7SJiri Olsa if (argc < 0) 20964979d0c7SJiri Olsa return -1; 2097ba6039b6SJiri Olsa } else if (argc && !strncmp(argv[0], "rep", 3)) 2098ba6039b6SJiri Olsa return __cmd_report(argc, argv); 20994979d0c7SJiri Olsa 2100ec0d3d1fSJiri Olsa interval = stat_config.interval; 2101f1f8ad52Syuzhoujian timeout = stat_config.timeout; 2102ec0d3d1fSJiri Olsa 21034979d0c7SJiri Olsa /* 21044979d0c7SJiri Olsa * For record command the -o is already taken care of. 21054979d0c7SJiri Olsa */ 21064979d0c7SJiri Olsa if (!STAT_RECORD && output_name && strcmp(output_name, "-")) 21074aa9015fSStephane Eranian output = NULL; 21084aa9015fSStephane Eranian 210956f3bae7SJim Cromie if (output_name && output_fd) { 211056f3bae7SJim Cromie fprintf(stderr, "cannot use both --output and --log-fd\n"); 2111e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "o", 1); 2112e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "log-fd", 0); 2113cc03c542SNamhyung Kim goto out; 211456f3bae7SJim Cromie } 2115fc3e4d07SStephane Eranian 21160ce5aa02SJiri Olsa if (stat_config.metric_only && stat_config.aggr_mode == AGGR_THREAD) { 211754b50916SAndi Kleen fprintf(stderr, "--metric-only is not supported with --per-thread\n"); 211854b50916SAndi Kleen goto out; 211954b50916SAndi Kleen } 212054b50916SAndi Kleen 2121d97ae04bSJiri Olsa if (stat_config.metric_only && stat_config.run_count > 1) { 212254b50916SAndi Kleen fprintf(stderr, "--metric-only is not supported with -r\n"); 212354b50916SAndi Kleen goto out; 212454b50916SAndi Kleen } 212554b50916SAndi Kleen 212654ac0b1bSJiri Olsa if (stat_config.walltime_run_table && stat_config.run_count <= 1) { 2127e55c14afSJiri Olsa fprintf(stderr, "--table is only supported with -r\n"); 2128e55c14afSJiri Olsa parse_options_usage(stat_usage, stat_options, "r", 1); 2129e55c14afSJiri Olsa parse_options_usage(NULL, stat_options, "table", 0); 2130e55c14afSJiri Olsa goto out; 2131e55c14afSJiri Olsa } 2132e55c14afSJiri Olsa 2133fc3e4d07SStephane Eranian if (output_fd < 0) { 2134fc3e4d07SStephane Eranian fprintf(stderr, "argument to --log-fd must be a > 0\n"); 2135e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "log-fd", 0); 2136cc03c542SNamhyung Kim goto out; 2137fc3e4d07SStephane Eranian } 2138fc3e4d07SStephane Eranian 213955a4de94SAndi Kleen if (!output && !stat_config.quiet) { 21404aa9015fSStephane Eranian struct timespec tm; 21414aa9015fSStephane Eranian mode = append_file ? "a" : "w"; 21424aa9015fSStephane Eranian 21434aa9015fSStephane Eranian output = fopen(output_name, mode); 21444aa9015fSStephane Eranian if (!output) { 21454aa9015fSStephane Eranian perror("failed to create output file"); 2146fceda7feSDavid Ahern return -1; 21474aa9015fSStephane Eranian } 21484aa9015fSStephane Eranian clock_gettime(CLOCK_REALTIME, &tm); 21494aa9015fSStephane Eranian fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); 2150fc3e4d07SStephane Eranian } else if (output_fd > 0) { 215156f3bae7SJim Cromie mode = append_file ? "a" : "w"; 215256f3bae7SJim Cromie output = fdopen(output_fd, mode); 215356f3bae7SJim Cromie if (!output) { 215456f3bae7SJim Cromie perror("Failed opening logfd"); 215556f3bae7SJim Cromie return -errno; 215656f3bae7SJim Cromie } 21574aa9015fSStephane Eranian } 21584aa9015fSStephane Eranian 21595821522eSJiri Olsa stat_config.output = output; 21605821522eSJiri Olsa 2161d7470b6aSStephane Eranian /* 2162d7470b6aSStephane Eranian * let the spreadsheet do the pretty-printing 2163d7470b6aSStephane Eranian */ 2164fa7070a3SJiri Olsa if (stat_config.csv_output) { 216561a9f324SJim Cromie /* User explicitly passed -B? */ 2166d7470b6aSStephane Eranian if (big_num_opt == 1) { 2167d7470b6aSStephane Eranian fprintf(stderr, "-B option not supported with -x\n"); 2168e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "B", 1); 2169e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "x", 1); 2170cc03c542SNamhyung Kim goto out; 2171d7470b6aSStephane Eranian } else /* Nope, so disable big number formatting */ 217234ff0866SJiri Olsa stat_config.big_num = false; 2173d7470b6aSStephane Eranian } else if (big_num_opt == 0) /* User passed --no-big-num */ 217434ff0866SJiri Olsa stat_config.big_num = false; 2175d7470b6aSStephane Eranian 2176e3ba76deSJiri Olsa setup_system_wide(argc); 2177ac3063bdSDavid Ahern 21780ce2da14SJiri Olsa /* 21790ce2da14SJiri Olsa * Display user/system times only for single 21800ce2da14SJiri Olsa * run and when there's specified tracee. 21810ce2da14SJiri Olsa */ 2182d97ae04bSJiri Olsa if ((stat_config.run_count == 1) && target__none(&target)) 21838897a891SJiri Olsa stat_config.ru_display = true; 21840ce2da14SJiri Olsa 2185d97ae04bSJiri Olsa if (stat_config.run_count < 0) { 2186cc03c542SNamhyung Kim pr_err("Run count must be a positive number\n"); 2187e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "r", 1); 2188cc03c542SNamhyung Kim goto out; 2189d97ae04bSJiri Olsa } else if (stat_config.run_count == 0) { 2190a7e191c3SFrederik Deweerdt forever = true; 2191d97ae04bSJiri Olsa stat_config.run_count = 1; 2192a7e191c3SFrederik Deweerdt } 219386470930SIngo Molnar 219454ac0b1bSJiri Olsa if (stat_config.walltime_run_table) { 219554ac0b1bSJiri Olsa stat_config.walltime_run = zalloc(stat_config.run_count * sizeof(stat_config.walltime_run[0])); 219654ac0b1bSJiri Olsa if (!stat_config.walltime_run) { 2197e55c14afSJiri Olsa pr_err("failed to setup -r option"); 2198e55c14afSJiri Olsa goto out; 2199e55c14afSJiri Olsa } 2200e55c14afSJiri Olsa } 2201e55c14afSJiri Olsa 22021d9f8d1bSJin Yao if ((stat_config.aggr_mode == AGGR_THREAD) && 22031d9f8d1bSJin Yao !target__has_task(&target)) { 22041d9f8d1bSJin Yao if (!target.system_wide || target.cpu_list) { 22051d9f8d1bSJin Yao fprintf(stderr, "The --per-thread option is only " 22061d9f8d1bSJin Yao "available when monitoring via -p -t -a " 22071d9f8d1bSJin Yao "options or only --per-thread.\n"); 2208e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "p", 1); 2209e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "t", 1); 221032b8af82SJiri Olsa goto out; 221132b8af82SJiri Olsa } 22121d9f8d1bSJin Yao } 221332b8af82SJiri Olsa 221432b8af82SJiri Olsa /* 221532b8af82SJiri Olsa * no_aggr, cgroup are for system-wide only 221632b8af82SJiri Olsa * --per-thread is aggregated per thread, we dont mix it with cpu mode 221732b8af82SJiri Olsa */ 2218421a50f3SJiri Olsa if (((stat_config.aggr_mode != AGGR_GLOBAL && 2219421a50f3SJiri Olsa stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && 2220602ad878SArnaldo Carvalho de Melo !target__has_cpu(&target)) { 2221023695d9SStephane Eranian fprintf(stderr, "both cgroup and no-aggregation " 2222023695d9SStephane Eranian "modes only available in system-wide mode\n"); 2223023695d9SStephane Eranian 2224e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "G", 1); 2225e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "A", 1); 2226e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "a", 1); 2227cc03c542SNamhyung Kim goto out; 2228d7e7a451SStephane Eranian } 2229d7e7a451SStephane Eranian 22302cba3ffbSIngo Molnar if (add_default_attributes()) 2231c6264defSIngo Molnar goto out; 223286470930SIngo Molnar 2233d1c5a0e8SNamhyung Kim if (stat_config.cgroup_list) { 2234d1c5a0e8SNamhyung Kim if (nr_cgroups > 0) { 2235d1c5a0e8SNamhyung Kim pr_err("--cgroup and --for-each-cgroup cannot be used together\n"); 2236d1c5a0e8SNamhyung Kim parse_options_usage(stat_usage, stat_options, "G", 1); 2237d1c5a0e8SNamhyung Kim parse_options_usage(NULL, stat_options, "for-each-cgroup", 0); 2238d1c5a0e8SNamhyung Kim goto out; 2239d1c5a0e8SNamhyung Kim } 2240d1c5a0e8SNamhyung Kim 2241b214ba8cSNamhyung Kim if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, 2242bb1c15b6SNamhyung Kim &stat_config.metric_events, true) < 0) { 2243bb1c15b6SNamhyung Kim parse_options_usage(stat_usage, stat_options, 2244bb1c15b6SNamhyung Kim "for-each-cgroup", 0); 2245d1c5a0e8SNamhyung Kim goto out; 2246d1c5a0e8SNamhyung Kim } 2247bb1c15b6SNamhyung Kim } 2248d1c5a0e8SNamhyung Kim 2249602ad878SArnaldo Carvalho de Melo target__validate(&target); 22505c98d466SArnaldo Carvalho de Melo 22511d9f8d1bSJin Yao if ((stat_config.aggr_mode == AGGR_THREAD) && (target.system_wide)) 22521d9f8d1bSJin Yao target.per_thread = true; 22531d9f8d1bSJin Yao 225477a6f014SNamhyung Kim if (perf_evlist__create_maps(evsel_list, &target) < 0) { 2255602ad878SArnaldo Carvalho de Melo if (target__has_task(&target)) { 22565c98d466SArnaldo Carvalho de Melo pr_err("Problems finding threads of monitor\n"); 2257e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "p", 1); 2258e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "t", 1); 2259602ad878SArnaldo Carvalho de Melo } else if (target__has_cpu(&target)) { 226060d567e2SArnaldo Carvalho de Melo perror("failed to parse CPUs map"); 2261e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "C", 1); 2262e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "a", 1); 2263cc03c542SNamhyung Kim } 2264cc03c542SNamhyung Kim goto out; 226560d567e2SArnaldo Carvalho de Melo } 226632b8af82SJiri Olsa 2267a9a17902SJiri Olsa evlist__check_cpu_maps(evsel_list); 2268a9a17902SJiri Olsa 226932b8af82SJiri Olsa /* 227032b8af82SJiri Olsa * Initialize thread_map with comm names, 227132b8af82SJiri Olsa * so we could print it out on output. 227232b8af82SJiri Olsa */ 227356739444SJin Yao if (stat_config.aggr_mode == AGGR_THREAD) { 227403617c22SJiri Olsa thread_map__read_comms(evsel_list->core.threads); 227556739444SJin Yao if (target.system_wide) { 227656739444SJin Yao if (runtime_stat_new(&stat_config, 2277a2f354e3SJiri Olsa perf_thread_map__nr(evsel_list->core.threads))) { 227856739444SJin Yao goto out; 227956739444SJin Yao } 228056739444SJin Yao } 228156739444SJin Yao } 228232b8af82SJiri Olsa 228386895b48SJiri Olsa if (stat_config.aggr_mode == AGGR_NODE) 228486895b48SJiri Olsa cpu__setup_cpunode_map(); 228586895b48SJiri Olsa 2286db06a269Syuzhoujian if (stat_config.times && interval) 2287db06a269Syuzhoujian interval_count = true; 2288db06a269Syuzhoujian else if (stat_config.times && !interval) { 2289db06a269Syuzhoujian pr_err("interval-count option should be used together with " 2290db06a269Syuzhoujian "interval-print.\n"); 2291db06a269Syuzhoujian parse_options_usage(stat_usage, stat_options, "interval-count", 0); 2292db06a269Syuzhoujian parse_options_usage(stat_usage, stat_options, "I", 1); 2293db06a269Syuzhoujian goto out; 2294db06a269Syuzhoujian } 2295c45c6ea2SStephane Eranian 2296f1f8ad52Syuzhoujian if (timeout && timeout < 100) { 2297f1f8ad52Syuzhoujian if (timeout < 10) { 2298f1f8ad52Syuzhoujian pr_err("timeout must be >= 10ms.\n"); 2299f1f8ad52Syuzhoujian parse_options_usage(stat_usage, stat_options, "timeout", 0); 2300f1f8ad52Syuzhoujian goto out; 2301f1f8ad52Syuzhoujian } else 2302f1f8ad52Syuzhoujian pr_warning("timeout < 100ms. " 2303f1f8ad52Syuzhoujian "The overhead percentage could be high in some cases. " 2304f1f8ad52Syuzhoujian "Please proceed with caution.\n"); 2305f1f8ad52Syuzhoujian } 2306f1f8ad52Syuzhoujian if (timeout && interval) { 2307f1f8ad52Syuzhoujian pr_err("timeout option is not supported with interval-print.\n"); 2308f1f8ad52Syuzhoujian parse_options_usage(stat_usage, stat_options, "timeout", 0); 2309f1f8ad52Syuzhoujian parse_options_usage(stat_usage, stat_options, "I", 1); 2310f1f8ad52Syuzhoujian goto out; 2311f1f8ad52Syuzhoujian } 2312f1f8ad52Syuzhoujian 2313d134ffb9SArnaldo Carvalho de Melo if (perf_evlist__alloc_stats(evsel_list, interval)) 231403ad9747SArnaldo Carvalho de Melo goto out; 2315d6d901c2SZhang, Yanmin 231686ee6e18SStephane Eranian if (perf_stat_init_aggr_mode()) 231703ad9747SArnaldo Carvalho de Melo goto out; 231886ee6e18SStephane Eranian 231986470930SIngo Molnar /* 23207d9ad16aSJiri Olsa * Set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless 23217d9ad16aSJiri Olsa * while avoiding that older tools show confusing messages. 23227d9ad16aSJiri Olsa * 23237d9ad16aSJiri Olsa * However for pipe sessions we need to keep it zero, 23247d9ad16aSJiri Olsa * because script's perf_evsel__check_attr is triggered 23257d9ad16aSJiri Olsa * by attr->sample_type != 0, and we can't run it on 23267d9ad16aSJiri Olsa * stat sessions. 23277d9ad16aSJiri Olsa */ 23287d9ad16aSJiri Olsa stat_config.identifier = !(STAT_RECORD && perf_stat.data.is_pipe); 23297d9ad16aSJiri Olsa 23307d9ad16aSJiri Olsa /* 233186470930SIngo Molnar * We dont want to block the signals - that would cause 233286470930SIngo Molnar * child tasks to inherit that and Ctrl-C would not work. 233386470930SIngo Molnar * What we want is for Ctrl-C to work in the exec()-ed 233486470930SIngo Molnar * task, but being ignored by perf stat itself: 233586470930SIngo Molnar */ 2336f7b7c26eSPeter Zijlstra atexit(sig_atexit); 2337a7e191c3SFrederik Deweerdt if (!forever) 233886470930SIngo Molnar signal(SIGINT, skip_signal); 233913370a9bSStephane Eranian signal(SIGCHLD, skip_signal); 234086470930SIngo Molnar signal(SIGALRM, skip_signal); 234186470930SIngo Molnar signal(SIGABRT, skip_signal); 234286470930SIngo Molnar 234327e9769aSAlexey Budankov if (evlist__initialize_ctlfd(evsel_list, stat_config.ctl_fd, stat_config.ctl_fd_ack)) 234427e9769aSAlexey Budankov goto out; 234527e9769aSAlexey Budankov 234642202dd5SIngo Molnar status = 0; 2347d97ae04bSJiri Olsa for (run_idx = 0; forever || run_idx < stat_config.run_count; run_idx++) { 2348d97ae04bSJiri Olsa if (stat_config.run_count != 1 && verbose > 0) 23494aa9015fSStephane Eranian fprintf(output, "[ perf stat: executing run #%d ... ]\n", 23504aa9015fSStephane Eranian run_idx + 1); 2351f9cef0a9SIngo Molnar 2352b63fd11cSSrikar Dronamraju if (run_idx != 0) 2353b63fd11cSSrikar Dronamraju perf_evlist__reset_prev_raw_counts(evsel_list); 2354b63fd11cSSrikar Dronamraju 2355e55c14afSJiri Olsa status = run_perf_stat(argc, argv, run_idx); 2356443f2d5bSSrikar Dronamraju if (forever && status != -1 && !interval) { 2357d4f63a47SJiri Olsa print_counters(NULL, argc, argv); 2358254ecbc7SJiri Olsa perf_stat__reset_stats(); 2359a7e191c3SFrederik Deweerdt } 236042202dd5SIngo Molnar } 236142202dd5SIngo Molnar 2362c7e5b328SJin Yao if (!forever && status != -1 && (!interval || stat_config.summary)) 2363d4f63a47SJiri Olsa print_counters(NULL, argc, argv); 2364d134ffb9SArnaldo Carvalho de Melo 236527e9769aSAlexey Budankov evlist__finalize_ctlfd(evsel_list); 236627e9769aSAlexey Budankov 23674979d0c7SJiri Olsa if (STAT_RECORD) { 23684979d0c7SJiri Olsa /* 23694979d0c7SJiri Olsa * We synthesize the kernel mmap record just so that older tools 23704979d0c7SJiri Olsa * don't emit warnings about not being able to resolve symbols 23714979d0c7SJiri Olsa * due to /proc/sys/kernel/kptr_restrict settings and instear provide 23724979d0c7SJiri Olsa * a saner message about no samples being in the perf.data file. 23734979d0c7SJiri Olsa * 23744979d0c7SJiri Olsa * This also serves to suppress a warning about f_header.data.size == 0 23758b99b1a4SJiri Olsa * in header.c at the moment 'perf stat record' gets introduced, which 23768b99b1a4SJiri Olsa * is not really needed once we start adding the stat specific PERF_RECORD_ 23778b99b1a4SJiri Olsa * records, but the need to suppress the kptr_restrict messages in older 23788b99b1a4SJiri Olsa * tools remain -acme 23794979d0c7SJiri Olsa */ 23808ceb41d7SJiri Olsa int fd = perf_data__fd(&perf_stat.data); 23814979d0c7SJiri Olsa int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat, 23824979d0c7SJiri Olsa process_synthesized_event, 23834979d0c7SJiri Olsa &perf_stat.session->machines.host); 23844979d0c7SJiri Olsa if (err) { 23854979d0c7SJiri Olsa pr_warning("Couldn't synthesize the kernel mmap record, harmless, " 23864979d0c7SJiri Olsa "older tools may produce warnings about this file\n."); 23874979d0c7SJiri Olsa } 23884979d0c7SJiri Olsa 23897aad0c32SJiri Olsa if (!interval) { 23907aad0c32SJiri Olsa if (WRITE_STAT_ROUND_EVENT(walltime_nsecs_stats.max, FINAL)) 23917aad0c32SJiri Olsa pr_err("failed to write stat round event\n"); 23927aad0c32SJiri Olsa } 23937aad0c32SJiri Olsa 23948ceb41d7SJiri Olsa if (!perf_stat.data.is_pipe) { 23954979d0c7SJiri Olsa perf_stat.session->header.data_size += perf_stat.bytes_written; 23964979d0c7SJiri Olsa perf_session__write_header(perf_stat.session, evsel_list, fd, true); 2397664c98d4SJiri Olsa } 23984979d0c7SJiri Olsa 2399750b4edeSJiri Olsa evlist__close(evsel_list); 24004979d0c7SJiri Olsa perf_session__delete(perf_stat.session); 24014979d0c7SJiri Olsa } 24024979d0c7SJiri Olsa 2403544c2ae7SMasami Hiramatsu perf_stat__exit_aggr_mode(); 2404d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evsel_list); 24050015e2e1SArnaldo Carvalho de Melo out: 2406d8f9da24SArnaldo Carvalho de Melo zfree(&stat_config.walltime_run); 2407e55c14afSJiri Olsa 2408daefd0bcSKan Liang if (smi_cost && smi_reset) 2409daefd0bcSKan Liang sysfs__write_int(FREEZE_ON_SMI_PATH, 0); 2410daefd0bcSKan Liang 2411c12995a5SJiri Olsa evlist__delete(evsel_list); 241256739444SJin Yao 24139afe5658SJiri Olsa metricgroup__rblist_exit(&stat_config.metric_events); 241456739444SJin Yao runtime_stat_delete(&stat_config); 2415ee7fe31eSAdrian Hunter evlist__close_control(stat_config.ctl_fd, stat_config.ctl_fd_ack, &stat_config.ctl_fd_close); 241656739444SJin Yao 241742202dd5SIngo Molnar return status; 241886470930SIngo Molnar } 2419