186470930SIngo Molnar /* 286470930SIngo Molnar * builtin-stat.c 386470930SIngo Molnar * 486470930SIngo Molnar * Builtin stat command: Give a precise performance counters summary 586470930SIngo Molnar * overview about any workload, CPU or specific PID. 686470930SIngo Molnar * 786470930SIngo Molnar * Sample output: 886470930SIngo Molnar 92cba3ffbSIngo Molnar $ perf stat ./hackbench 10 1086470930SIngo Molnar 112cba3ffbSIngo Molnar Time: 0.118 1286470930SIngo Molnar 132cba3ffbSIngo Molnar Performance counter stats for './hackbench 10': 1486470930SIngo Molnar 152cba3ffbSIngo Molnar 1708.761321 task-clock # 11.037 CPUs utilized 162cba3ffbSIngo Molnar 41,190 context-switches # 0.024 M/sec 172cba3ffbSIngo Molnar 6,735 CPU-migrations # 0.004 M/sec 182cba3ffbSIngo Molnar 17,318 page-faults # 0.010 M/sec 192cba3ffbSIngo Molnar 5,205,202,243 cycles # 3.046 GHz 202cba3ffbSIngo Molnar 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle 212cba3ffbSIngo Molnar 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle 222cba3ffbSIngo Molnar 2,603,501,247 instructions # 0.50 insns per cycle 232cba3ffbSIngo Molnar # 1.48 stalled cycles per insn 242cba3ffbSIngo Molnar 484,357,498 branches # 283.455 M/sec 252cba3ffbSIngo Molnar 6,388,934 branch-misses # 1.32% of all branches 262cba3ffbSIngo Molnar 272cba3ffbSIngo Molnar 0.154822978 seconds time elapsed 2886470930SIngo Molnar 2986470930SIngo Molnar * 302cba3ffbSIngo Molnar * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 3186470930SIngo Molnar * 3286470930SIngo Molnar * Improvements and fixes by: 3386470930SIngo Molnar * 3486470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 3586470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 3686470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 3786470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 3886470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 396e750a8fSJaswinder Singh Rajput * Jaswinder Singh Rajput <jaswinder@kernel.org> 4086470930SIngo Molnar * 4186470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 4286470930SIngo Molnar */ 4386470930SIngo Molnar 4486470930SIngo Molnar #include "perf.h" 4586470930SIngo Molnar #include "builtin.h" 46f14d5707SArnaldo Carvalho de Melo #include "util/cgroup.h" 4786470930SIngo Molnar #include "util/util.h" 484b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 4986470930SIngo Molnar #include "util/parse-events.h" 504cabc3d1SAndi Kleen #include "util/pmu.h" 518f28827aSFrederic Weisbecker #include "util/event.h" 52361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 5369aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 548f28827aSFrederic Weisbecker #include "util/debug.h" 55a5d243d0SIngo Molnar #include "util/color.h" 560007eceaSXiao Guangrong #include "util/stat.h" 5760666c63SLiming Wang #include "util/header.h" 58a12b51c4SPaul Mackerras #include "util/cpumap.h" 59d6d901c2SZhang, Yanmin #include "util/thread.h" 60fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 61d809560bSJiri Olsa #include "util/counts.h" 624979d0c7SJiri Olsa #include "util/session.h" 6386470930SIngo Molnar 641f16c575SPeter Zijlstra #include <stdlib.h> 6586470930SIngo Molnar #include <sys/prctl.h> 665af52b51SStephane Eranian #include <locale.h> 6786470930SIngo Molnar 68d7470b6aSStephane Eranian #define DEFAULT_SEPARATOR " " 692cee77c4SDavid Ahern #define CNTR_NOT_SUPPORTED "<not supported>" 702cee77c4SDavid Ahern #define CNTR_NOT_COUNTED "<not counted>" 71d7470b6aSStephane Eranian 72d4f63a47SJiri Olsa static void print_counters(struct timespec *ts, int argc, const char **argv); 7313370a9bSStephane Eranian 744cabc3d1SAndi Kleen /* Default events used for perf stat -T */ 75a454742cSJiri Olsa static const char *transaction_attrs = { 76a454742cSJiri Olsa "task-clock," 774cabc3d1SAndi Kleen "{" 784cabc3d1SAndi Kleen "instructions," 794cabc3d1SAndi Kleen "cycles," 804cabc3d1SAndi Kleen "cpu/cycles-t/," 814cabc3d1SAndi Kleen "cpu/tx-start/," 824cabc3d1SAndi Kleen "cpu/el-start/," 834cabc3d1SAndi Kleen "cpu/cycles-ct/" 844cabc3d1SAndi Kleen "}" 854cabc3d1SAndi Kleen }; 864cabc3d1SAndi Kleen 874cabc3d1SAndi Kleen /* More limited version when the CPU does not have all events. */ 88a454742cSJiri Olsa static const char * transaction_limited_attrs = { 89a454742cSJiri Olsa "task-clock," 904cabc3d1SAndi Kleen "{" 914cabc3d1SAndi Kleen "instructions," 924cabc3d1SAndi Kleen "cycles," 934cabc3d1SAndi Kleen "cpu/cycles-t/," 944cabc3d1SAndi Kleen "cpu/tx-start/" 954cabc3d1SAndi Kleen "}" 964cabc3d1SAndi Kleen }; 974cabc3d1SAndi Kleen 98666e6d48SRobert Richter static struct perf_evlist *evsel_list; 99361c99a6SArnaldo Carvalho de Melo 100602ad878SArnaldo Carvalho de Melo static struct target target = { 10177a6f014SNamhyung Kim .uid = UINT_MAX, 10277a6f014SNamhyung Kim }; 10342202dd5SIngo Molnar 1041e5a2931SJiri Olsa typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu); 1051e5a2931SJiri Olsa 1063d632595SJaswinder Singh Rajput static int run_count = 1; 1072e6cdf99SStephane Eranian static bool no_inherit = false; 108d07f0b12SStephane Eranian static volatile pid_t child_pid = -1; 109c0555642SIan Munsie static bool null_run = false; 1102cba3ffbSIngo Molnar static int detailed_run = 0; 1114cabc3d1SAndi Kleen static bool transaction_run; 112201e0b06SArnaldo Carvalho de Melo static bool big_num = true; 113d7470b6aSStephane Eranian static int big_num_opt = -1; 114d7470b6aSStephane Eranian static const char *csv_sep = NULL; 115d7470b6aSStephane Eranian static bool csv_output = false; 11643bece79SLin Ming static bool group = false; 1171f16c575SPeter Zijlstra static const char *pre_cmd = NULL; 1181f16c575SPeter Zijlstra static const char *post_cmd = NULL; 1191f16c575SPeter Zijlstra static bool sync_run = false; 12041191688SAndi Kleen static unsigned int initial_delay = 0; 121410136f5SStephane Eranian static unsigned int unit_width = 4; /* strlen("unit") */ 122a7e191c3SFrederik Deweerdt static bool forever = false; 12313370a9bSStephane Eranian static struct timespec ref_time; 12486ee6e18SStephane Eranian static struct cpu_map *aggr_map; 1251e5a2931SJiri Olsa static aggr_get_id_t aggr_get_id; 126e0547311SJiri Olsa static bool append_file; 127e0547311SJiri Olsa static const char *output_name; 128e0547311SJiri Olsa static int output_fd; 1295af52b51SStephane Eranian 1304979d0c7SJiri Olsa struct perf_stat { 1314979d0c7SJiri Olsa bool record; 1324979d0c7SJiri Olsa struct perf_data_file file; 1334979d0c7SJiri Olsa struct perf_session *session; 1344979d0c7SJiri Olsa u64 bytes_written; 1354979d0c7SJiri Olsa }; 1364979d0c7SJiri Olsa 1374979d0c7SJiri Olsa static struct perf_stat perf_stat; 1384979d0c7SJiri Olsa #define STAT_RECORD perf_stat.record 1394979d0c7SJiri Olsa 14060666c63SLiming Wang static volatile int done = 0; 14160666c63SLiming Wang 142421a50f3SJiri Olsa static struct perf_stat_config stat_config = { 143421a50f3SJiri Olsa .aggr_mode = AGGR_GLOBAL, 144711a572eSJiri Olsa .scale = true, 145421a50f3SJiri Olsa }; 146421a50f3SJiri Olsa 14713370a9bSStephane Eranian static inline void diff_timespec(struct timespec *r, struct timespec *a, 14813370a9bSStephane Eranian struct timespec *b) 14913370a9bSStephane Eranian { 15013370a9bSStephane Eranian r->tv_sec = a->tv_sec - b->tv_sec; 15113370a9bSStephane Eranian if (a->tv_nsec < b->tv_nsec) { 15213370a9bSStephane Eranian r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; 15313370a9bSStephane Eranian r->tv_sec--; 15413370a9bSStephane Eranian } else { 15513370a9bSStephane Eranian r->tv_nsec = a->tv_nsec - b->tv_nsec ; 15613370a9bSStephane Eranian } 15713370a9bSStephane Eranian } 15813370a9bSStephane Eranian 159254ecbc7SJiri Olsa static void perf_stat__reset_stats(void) 160254ecbc7SJiri Olsa { 161254ecbc7SJiri Olsa perf_evlist__reset_stats(evsel_list); 162f87027b9SJiri Olsa perf_stat__reset_shadow_stats(); 1631eda3b21SJiri Olsa } 1641eda3b21SJiri Olsa 165cac21425SJiri Olsa static int create_perf_stat_counter(struct perf_evsel *evsel) 16686470930SIngo Molnar { 16769aad6f1SArnaldo Carvalho de Melo struct perf_event_attr *attr = &evsel->attr; 168727ab04eSArnaldo Carvalho de Melo 169711a572eSJiri Olsa if (stat_config.scale) 17086470930SIngo Molnar attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | 17186470930SIngo Molnar PERF_FORMAT_TOTAL_TIME_RUNNING; 17286470930SIngo Molnar 1732e6cdf99SStephane Eranian attr->inherit = !no_inherit; 1745d2cd909SArnaldo Carvalho de Melo 1756acd8e92SJiri Olsa /* 1766acd8e92SJiri Olsa * Some events get initialized with sample_(period/type) set, 1776acd8e92SJiri Olsa * like tracepoints. Clear it up for counting. 1786acd8e92SJiri Olsa */ 1796acd8e92SJiri Olsa attr->sample_period = 0; 1804979d0c7SJiri Olsa /* 1814979d0c7SJiri Olsa * But set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless 1824979d0c7SJiri Olsa * while avoiding that older tools show confusing messages. 1834979d0c7SJiri Olsa */ 1844979d0c7SJiri Olsa attr->sample_type = PERF_SAMPLE_IDENTIFIER; 1856acd8e92SJiri Olsa 18667ccdecdSJiri Olsa /* 18767ccdecdSJiri Olsa * Disabling all counters initially, they will be enabled 18867ccdecdSJiri Olsa * either manually by us or by kernel via enable_on_exec 18967ccdecdSJiri Olsa * set later. 19067ccdecdSJiri Olsa */ 191c8280cecSJiri Olsa if (perf_evsel__is_group_leader(evsel)) { 19267ccdecdSJiri Olsa attr->disabled = 1; 19367ccdecdSJiri Olsa 194c8280cecSJiri Olsa /* 195c8280cecSJiri Olsa * In case of initial_delay we enable tracee 196c8280cecSJiri Olsa * events manually. 197c8280cecSJiri Olsa */ 198c8280cecSJiri Olsa if (target__none(&target) && !initial_delay) 199c8280cecSJiri Olsa attr->enable_on_exec = 1; 200c8280cecSJiri Olsa } 201c8280cecSJiri Olsa 202602ad878SArnaldo Carvalho de Melo if (target__has_cpu(&target)) 203594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); 2045622c07bSStephane Eranian 205594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_thread(evsel, evsel_list->threads); 20686470930SIngo Molnar } 20786470930SIngo Molnar 20886470930SIngo Molnar /* 20986470930SIngo Molnar * Does the counter have nsecs as a unit? 21086470930SIngo Molnar */ 211daec78a0SArnaldo Carvalho de Melo static inline int nsec_counter(struct perf_evsel *evsel) 21286470930SIngo Molnar { 213daec78a0SArnaldo Carvalho de Melo if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || 214daec78a0SArnaldo Carvalho de Melo perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) 21586470930SIngo Molnar return 1; 21686470930SIngo Molnar 21786470930SIngo Molnar return 0; 21886470930SIngo Molnar } 21986470930SIngo Molnar 2204979d0c7SJiri Olsa static int perf_stat__write(struct perf_stat *stat, void *bf, size_t size) 2214979d0c7SJiri Olsa { 2224979d0c7SJiri Olsa if (perf_data_file__write(stat->session->file, bf, size) < 0) { 2234979d0c7SJiri Olsa pr_err("failed to write perf data, error: %m\n"); 2244979d0c7SJiri Olsa return -1; 2254979d0c7SJiri Olsa } 2264979d0c7SJiri Olsa 2274979d0c7SJiri Olsa stat->bytes_written += size; 2284979d0c7SJiri Olsa return 0; 2294979d0c7SJiri Olsa } 2304979d0c7SJiri Olsa 2314979d0c7SJiri Olsa static int process_synthesized_event(struct perf_tool *tool, 2324979d0c7SJiri Olsa union perf_event *event, 2334979d0c7SJiri Olsa struct perf_sample *sample __maybe_unused, 2344979d0c7SJiri Olsa struct machine *machine __maybe_unused) 2354979d0c7SJiri Olsa { 2364979d0c7SJiri Olsa struct perf_stat *stat = (void *)tool; 2374979d0c7SJiri Olsa return perf_stat__write(stat, event, event->header.size); 2384979d0c7SJiri Olsa } 2394979d0c7SJiri Olsa 240f5b4a9c3SStephane Eranian /* 241f5b4a9c3SStephane Eranian * Read out the results of a single counter: 242f5b4a9c3SStephane Eranian * do not aggregate counts across CPUs in system-wide mode 243f5b4a9c3SStephane Eranian */ 244c52b12edSArnaldo Carvalho de Melo static int read_counter(struct perf_evsel *counter) 245f5b4a9c3SStephane Eranian { 2469bf1a529SJiri Olsa int nthreads = thread_map__nr(evsel_list->threads); 2479bf1a529SJiri Olsa int ncpus = perf_evsel__nr_cpus(counter); 2489bf1a529SJiri Olsa int cpu, thread; 249f5b4a9c3SStephane Eranian 2503b4331d9SSuzuki K. Poulose if (!counter->supported) 2513b4331d9SSuzuki K. Poulose return -ENOENT; 2523b4331d9SSuzuki K. Poulose 2539bf1a529SJiri Olsa if (counter->system_wide) 2549bf1a529SJiri Olsa nthreads = 1; 2559bf1a529SJiri Olsa 2569bf1a529SJiri Olsa for (thread = 0; thread < nthreads; thread++) { 2579bf1a529SJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 2583b3eb044SJiri Olsa struct perf_counts_values *count; 2593b3eb044SJiri Olsa 2603b3eb044SJiri Olsa count = perf_counts(counter->counts, cpu, thread); 2613b3eb044SJiri Olsa if (perf_evsel__read(counter, cpu, thread, count)) 262c52b12edSArnaldo Carvalho de Melo return -1; 263f5b4a9c3SStephane Eranian } 2649bf1a529SJiri Olsa } 265c52b12edSArnaldo Carvalho de Melo 266c52b12edSArnaldo Carvalho de Melo return 0; 26786470930SIngo Molnar } 26886470930SIngo Molnar 2695fc472a6SJiri Olsa static void read_counters(bool close_counters) 270106a94a0SJiri Olsa { 271106a94a0SJiri Olsa struct perf_evsel *counter; 272106a94a0SJiri Olsa 273106a94a0SJiri Olsa evlist__for_each(evsel_list, counter) { 2743b3eb044SJiri Olsa if (read_counter(counter)) 275245bad8eSAndi Kleen pr_debug("failed to read counter %s\n", counter->name); 2763b3eb044SJiri Olsa 277f80010ebSJiri Olsa if (perf_stat_process_counter(&stat_config, counter)) 2783b3eb044SJiri Olsa pr_warning("failed to process counter %s\n", counter->name); 279106a94a0SJiri Olsa 2805fc472a6SJiri Olsa if (close_counters) { 281106a94a0SJiri Olsa perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 282106a94a0SJiri Olsa thread_map__nr(evsel_list->threads)); 283106a94a0SJiri Olsa } 284106a94a0SJiri Olsa } 285106a94a0SJiri Olsa } 286106a94a0SJiri Olsa 287ba411a95SJiri Olsa static void process_interval(void) 28813370a9bSStephane Eranian { 28913370a9bSStephane Eranian struct timespec ts, rs; 29013370a9bSStephane Eranian 291106a94a0SJiri Olsa read_counters(false); 29286ee6e18SStephane Eranian 29313370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ts); 29413370a9bSStephane Eranian diff_timespec(&rs, &ts, &ref_time); 29513370a9bSStephane Eranian 296d4f63a47SJiri Olsa print_counters(&rs, 0, NULL); 29713370a9bSStephane Eranian } 29813370a9bSStephane Eranian 29967ccdecdSJiri Olsa static void enable_counters(void) 30041191688SAndi Kleen { 30167ccdecdSJiri Olsa if (initial_delay) 30241191688SAndi Kleen usleep(initial_delay * 1000); 30367ccdecdSJiri Olsa 30467ccdecdSJiri Olsa /* 30567ccdecdSJiri Olsa * We need to enable counters only if: 30667ccdecdSJiri Olsa * - we don't have tracee (attaching to task or cpu) 30767ccdecdSJiri Olsa * - we have initial delay configured 30867ccdecdSJiri Olsa */ 30967ccdecdSJiri Olsa if (!target__none(&target) || initial_delay) 310ab46db0aSJiri Olsa perf_evlist__enable(evsel_list); 31141191688SAndi Kleen } 31241191688SAndi Kleen 313f33cbe72SArnaldo Carvalho de Melo static volatile int workload_exec_errno; 3146af206fdSArnaldo Carvalho de Melo 3156af206fdSArnaldo Carvalho de Melo /* 3166af206fdSArnaldo Carvalho de Melo * perf_evlist__prepare_workload will send a SIGUSR1 3176af206fdSArnaldo Carvalho de Melo * if the fork fails, since we asked by setting its 3186af206fdSArnaldo Carvalho de Melo * want_signal to true. 3196af206fdSArnaldo Carvalho de Melo */ 320f33cbe72SArnaldo Carvalho de Melo static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, 321f33cbe72SArnaldo Carvalho de Melo void *ucontext __maybe_unused) 3226af206fdSArnaldo Carvalho de Melo { 323f33cbe72SArnaldo Carvalho de Melo workload_exec_errno = info->si_value.sival_int; 3246af206fdSArnaldo Carvalho de Melo } 3256af206fdSArnaldo Carvalho de Melo 326acf28922SNamhyung Kim static int __run_perf_stat(int argc, const char **argv) 32786470930SIngo Molnar { 328ec0d3d1fSJiri Olsa int interval = stat_config.interval; 32956e52e85SArnaldo Carvalho de Melo char msg[512]; 33086470930SIngo Molnar unsigned long long t0, t1; 331cac21425SJiri Olsa struct perf_evsel *counter; 33213370a9bSStephane Eranian struct timespec ts; 333410136f5SStephane Eranian size_t l; 33442202dd5SIngo Molnar int status = 0; 3356be2850eSZhang, Yanmin const bool forks = (argc > 0); 33686470930SIngo Molnar 33713370a9bSStephane Eranian if (interval) { 33813370a9bSStephane Eranian ts.tv_sec = interval / 1000; 33913370a9bSStephane Eranian ts.tv_nsec = (interval % 1000) * 1000000; 34013370a9bSStephane Eranian } else { 34113370a9bSStephane Eranian ts.tv_sec = 1; 34213370a9bSStephane Eranian ts.tv_nsec = 0; 34313370a9bSStephane Eranian } 34413370a9bSStephane Eranian 345acf28922SNamhyung Kim if (forks) { 346735f7e0bSArnaldo Carvalho de Melo if (perf_evlist__prepare_workload(evsel_list, &target, argv, false, 347735f7e0bSArnaldo Carvalho de Melo workload_exec_failed_signal) < 0) { 348acf28922SNamhyung Kim perror("failed to prepare workload"); 349fceda7feSDavid Ahern return -1; 350051ae7f7SPaul Mackerras } 351d20a47e7SNamhyung Kim child_pid = evsel_list->workload.pid; 35260666c63SLiming Wang } 353051ae7f7SPaul Mackerras 3546a4bb04cSJiri Olsa if (group) 35563dab225SArnaldo Carvalho de Melo perf_evlist__set_leader(evsel_list); 3566a4bb04cSJiri Olsa 3570050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 358cac21425SJiri Olsa if (create_perf_stat_counter(counter) < 0) { 359979987a5SDavid Ahern /* 360979987a5SDavid Ahern * PPC returns ENXIO for HW counters until 2.6.37 361979987a5SDavid Ahern * (behavior changed with commit b0a873e). 362979987a5SDavid Ahern */ 36338f6ae1eSAnton Blanchard if (errno == EINVAL || errno == ENOSYS || 364979987a5SDavid Ahern errno == ENOENT || errno == EOPNOTSUPP || 365979987a5SDavid Ahern errno == ENXIO) { 366c63ca0c0SDavid Ahern if (verbose) 367c63ca0c0SDavid Ahern ui__warning("%s event is not supported by the kernel.\n", 3687289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 3692cee77c4SDavid Ahern counter->supported = false; 370cb5ef600SKan Liang 371cb5ef600SKan Liang if ((counter->leader != counter) || 372cb5ef600SKan Liang !(counter->leader->nr_members > 1)) 373ede70290SIngo Molnar continue; 374c63ca0c0SDavid Ahern } 375ede70290SIngo Molnar 37656e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &target, 37756e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 37856e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 37956e52e85SArnaldo Carvalho de Melo 380084ab9f8SArnaldo Carvalho de Melo if (child_pid != -1) 381084ab9f8SArnaldo Carvalho de Melo kill(child_pid, SIGTERM); 382fceda7feSDavid Ahern 383084ab9f8SArnaldo Carvalho de Melo return -1; 384084ab9f8SArnaldo Carvalho de Melo } 3852cee77c4SDavid Ahern counter->supported = true; 386410136f5SStephane Eranian 387410136f5SStephane Eranian l = strlen(counter->unit); 388410136f5SStephane Eranian if (l > unit_width) 389410136f5SStephane Eranian unit_width = l; 39048290609SArnaldo Carvalho de Melo } 39186470930SIngo Molnar 39223d4aad4SArnaldo Carvalho de Melo if (perf_evlist__apply_filters(evsel_list, &counter)) { 39323d4aad4SArnaldo Carvalho de Melo error("failed to set filter \"%s\" on event %s with %d (%s)\n", 39423d4aad4SArnaldo Carvalho de Melo counter->filter, perf_evsel__name(counter), errno, 395759e612bSMasami Hiramatsu strerror_r(errno, msg, sizeof(msg))); 396cfd748aeSFrederic Weisbecker return -1; 397cfd748aeSFrederic Weisbecker } 398cfd748aeSFrederic Weisbecker 3994979d0c7SJiri Olsa if (STAT_RECORD) { 4004979d0c7SJiri Olsa int err, fd = perf_data_file__fd(&perf_stat.file); 4014979d0c7SJiri Olsa 4024979d0c7SJiri Olsa err = perf_session__write_header(perf_stat.session, evsel_list, 4034979d0c7SJiri Olsa fd, false); 4044979d0c7SJiri Olsa if (err < 0) 4054979d0c7SJiri Olsa return err; 4064979d0c7SJiri Olsa } 4074979d0c7SJiri Olsa 40886470930SIngo Molnar /* 40986470930SIngo Molnar * Enable counters and exec the command: 41086470930SIngo Molnar */ 41186470930SIngo Molnar t0 = rdclock(); 41213370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ref_time); 41386470930SIngo Molnar 41460666c63SLiming Wang if (forks) { 415acf28922SNamhyung Kim perf_evlist__start_workload(evsel_list); 41667ccdecdSJiri Olsa enable_counters(); 417acf28922SNamhyung Kim 41813370a9bSStephane Eranian if (interval) { 41913370a9bSStephane Eranian while (!waitpid(child_pid, &status, WNOHANG)) { 42013370a9bSStephane Eranian nanosleep(&ts, NULL); 421ba411a95SJiri Olsa process_interval(); 42213370a9bSStephane Eranian } 42313370a9bSStephane Eranian } 42442202dd5SIngo Molnar wait(&status); 4256af206fdSArnaldo Carvalho de Melo 426f33cbe72SArnaldo Carvalho de Melo if (workload_exec_errno) { 427f33cbe72SArnaldo Carvalho de Melo const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); 428f33cbe72SArnaldo Carvalho de Melo pr_err("Workload failed: %s\n", emsg); 4296af206fdSArnaldo Carvalho de Melo return -1; 430f33cbe72SArnaldo Carvalho de Melo } 4316af206fdSArnaldo Carvalho de Melo 43233e49ea7SAndi Kleen if (WIFSIGNALED(status)) 43333e49ea7SAndi Kleen psignal(WTERMSIG(status), argv[0]); 43460666c63SLiming Wang } else { 43567ccdecdSJiri Olsa enable_counters(); 43613370a9bSStephane Eranian while (!done) { 43713370a9bSStephane Eranian nanosleep(&ts, NULL); 43813370a9bSStephane Eranian if (interval) 439ba411a95SJiri Olsa process_interval(); 44013370a9bSStephane Eranian } 44160666c63SLiming Wang } 44286470930SIngo Molnar 44386470930SIngo Molnar t1 = rdclock(); 44486470930SIngo Molnar 4459e9772c4SPeter Zijlstra update_stats(&walltime_nsecs_stats, t1 - t0); 44642202dd5SIngo Molnar 447106a94a0SJiri Olsa read_counters(true); 448c52b12edSArnaldo Carvalho de Melo 44942202dd5SIngo Molnar return WEXITSTATUS(status); 45042202dd5SIngo Molnar } 45142202dd5SIngo Molnar 45241cde476SArnaldo Carvalho de Melo static int run_perf_stat(int argc, const char **argv) 4531f16c575SPeter Zijlstra { 4541f16c575SPeter Zijlstra int ret; 4551f16c575SPeter Zijlstra 4561f16c575SPeter Zijlstra if (pre_cmd) { 4571f16c575SPeter Zijlstra ret = system(pre_cmd); 4581f16c575SPeter Zijlstra if (ret) 4591f16c575SPeter Zijlstra return ret; 4601f16c575SPeter Zijlstra } 4611f16c575SPeter Zijlstra 4621f16c575SPeter Zijlstra if (sync_run) 4631f16c575SPeter Zijlstra sync(); 4641f16c575SPeter Zijlstra 4651f16c575SPeter Zijlstra ret = __run_perf_stat(argc, argv); 4661f16c575SPeter Zijlstra if (ret) 4671f16c575SPeter Zijlstra return ret; 4681f16c575SPeter Zijlstra 4691f16c575SPeter Zijlstra if (post_cmd) { 4701f16c575SPeter Zijlstra ret = system(post_cmd); 4711f16c575SPeter Zijlstra if (ret) 4721f16c575SPeter Zijlstra return ret; 4731f16c575SPeter Zijlstra } 4741f16c575SPeter Zijlstra 4751f16c575SPeter Zijlstra return ret; 4761f16c575SPeter Zijlstra } 4771f16c575SPeter Zijlstra 478d73515c0SAndi Kleen static void print_running(u64 run, u64 ena) 479d73515c0SAndi Kleen { 480d73515c0SAndi Kleen if (csv_output) { 4815821522eSJiri Olsa fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f", 482d73515c0SAndi Kleen csv_sep, 483d73515c0SAndi Kleen run, 484d73515c0SAndi Kleen csv_sep, 485d73515c0SAndi Kleen ena ? 100.0 * run / ena : 100.0); 486d73515c0SAndi Kleen } else if (run != ena) { 4875821522eSJiri Olsa fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena); 488d73515c0SAndi Kleen } 489d73515c0SAndi Kleen } 490d73515c0SAndi Kleen 491f99844cbSIngo Molnar static void print_noise_pct(double total, double avg) 492f99844cbSIngo Molnar { 4930007eceaSXiao Guangrong double pct = rel_stddev_stats(total, avg); 494f99844cbSIngo Molnar 4953ae9a34dSZhengyu He if (csv_output) 4965821522eSJiri Olsa fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct); 497a1bca6ccSJim Cromie else if (pct) 4985821522eSJiri Olsa fprintf(stat_config.output, " ( +-%6.2f%% )", pct); 499f99844cbSIngo Molnar } 500f99844cbSIngo Molnar 50169aad6f1SArnaldo Carvalho de Melo static void print_noise(struct perf_evsel *evsel, double avg) 50242202dd5SIngo Molnar { 503581cc8a2SJiri Olsa struct perf_stat_evsel *ps; 50469aad6f1SArnaldo Carvalho de Melo 505849abde9SPeter Zijlstra if (run_count == 1) 506849abde9SPeter Zijlstra return; 507849abde9SPeter Zijlstra 50869aad6f1SArnaldo Carvalho de Melo ps = evsel->priv; 509f99844cbSIngo Molnar print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); 51042202dd5SIngo Molnar } 51142202dd5SIngo Molnar 51212c08a9fSStephane Eranian static void aggr_printout(struct perf_evsel *evsel, int id, int nr) 51342202dd5SIngo Molnar { 514421a50f3SJiri Olsa switch (stat_config.aggr_mode) { 51512c08a9fSStephane Eranian case AGGR_CORE: 5165821522eSJiri Olsa fprintf(stat_config.output, "S%d-C%*d%s%*d%s", 51712c08a9fSStephane Eranian cpu_map__id_to_socket(id), 51812c08a9fSStephane Eranian csv_output ? 0 : -8, 51912c08a9fSStephane Eranian cpu_map__id_to_cpu(id), 52012c08a9fSStephane Eranian csv_sep, 52112c08a9fSStephane Eranian csv_output ? 0 : 4, 52212c08a9fSStephane Eranian nr, 52312c08a9fSStephane Eranian csv_sep); 52412c08a9fSStephane Eranian break; 52586ee6e18SStephane Eranian case AGGR_SOCKET: 5265821522eSJiri Olsa fprintf(stat_config.output, "S%*d%s%*d%s", 527d7e7a451SStephane Eranian csv_output ? 0 : -5, 52812c08a9fSStephane Eranian id, 529d7e7a451SStephane Eranian csv_sep, 530d7e7a451SStephane Eranian csv_output ? 0 : 4, 531d7e7a451SStephane Eranian nr, 532d7e7a451SStephane Eranian csv_sep); 53386ee6e18SStephane Eranian break; 53486ee6e18SStephane Eranian case AGGR_NONE: 5355821522eSJiri Olsa fprintf(stat_config.output, "CPU%*d%s", 536d7470b6aSStephane Eranian csv_output ? 0 : -4, 53712c08a9fSStephane Eranian perf_evsel__cpus(evsel)->map[id], csv_sep); 53886ee6e18SStephane Eranian break; 53932b8af82SJiri Olsa case AGGR_THREAD: 5405821522eSJiri Olsa fprintf(stat_config.output, "%*s-%*d%s", 54132b8af82SJiri Olsa csv_output ? 0 : 16, 54232b8af82SJiri Olsa thread_map__comm(evsel->threads, id), 54332b8af82SJiri Olsa csv_output ? 0 : -8, 54432b8af82SJiri Olsa thread_map__pid(evsel->threads, id), 54532b8af82SJiri Olsa csv_sep); 54632b8af82SJiri Olsa break; 54786ee6e18SStephane Eranian case AGGR_GLOBAL: 548208df99eSJiri Olsa case AGGR_UNSET: 54986ee6e18SStephane Eranian default: 55086ee6e18SStephane Eranian break; 55186ee6e18SStephane Eranian } 55286ee6e18SStephane Eranian } 553d7470b6aSStephane Eranian 554da88c7f7SAndi Kleen static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) 55586ee6e18SStephane Eranian { 5565821522eSJiri Olsa FILE *output = stat_config.output; 55786ee6e18SStephane Eranian double msecs = avg / 1e6; 558410136f5SStephane Eranian const char *fmt_v, *fmt_n; 5594bbe5a61SDavid Ahern char name[25]; 56086ee6e18SStephane Eranian 561410136f5SStephane Eranian fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; 562410136f5SStephane Eranian fmt_n = csv_output ? "%s" : "%-25s"; 563410136f5SStephane Eranian 564da88c7f7SAndi Kleen aggr_printout(evsel, id, nr); 56586ee6e18SStephane Eranian 5664bbe5a61SDavid Ahern scnprintf(name, sizeof(name), "%s%s", 5674bbe5a61SDavid Ahern perf_evsel__name(evsel), csv_output ? "" : " (msec)"); 568410136f5SStephane Eranian 569410136f5SStephane Eranian fprintf(output, fmt_v, msecs, csv_sep); 570410136f5SStephane Eranian 571410136f5SStephane Eranian if (csv_output) 572410136f5SStephane Eranian fprintf(output, "%s%s", evsel->unit, csv_sep); 573410136f5SStephane Eranian else 574410136f5SStephane Eranian fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); 575410136f5SStephane Eranian 576410136f5SStephane Eranian fprintf(output, fmt_n, name); 577d7470b6aSStephane Eranian 578023695d9SStephane Eranian if (evsel->cgrp) 5794aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 58042202dd5SIngo Molnar } 58142202dd5SIngo Molnar 582556b1fb7SJiri Olsa static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) 583556b1fb7SJiri Olsa { 5845821522eSJiri Olsa FILE *output = stat_config.output; 585556b1fb7SJiri Olsa double sc = evsel->scale; 586556b1fb7SJiri Olsa const char *fmt; 587556b1fb7SJiri Olsa 588556b1fb7SJiri Olsa if (csv_output) { 589556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; 590556b1fb7SJiri Olsa } else { 591556b1fb7SJiri Olsa if (big_num) 592556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; 593556b1fb7SJiri Olsa else 594556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; 595556b1fb7SJiri Olsa } 596556b1fb7SJiri Olsa 597556b1fb7SJiri Olsa aggr_printout(evsel, id, nr); 598556b1fb7SJiri Olsa 599556b1fb7SJiri Olsa fprintf(output, fmt, avg, csv_sep); 600556b1fb7SJiri Olsa 601556b1fb7SJiri Olsa if (evsel->unit) 602556b1fb7SJiri Olsa fprintf(output, "%-*s%s", 603556b1fb7SJiri Olsa csv_output ? 0 : unit_width, 604556b1fb7SJiri Olsa evsel->unit, csv_sep); 605556b1fb7SJiri Olsa 606556b1fb7SJiri Olsa fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); 607556b1fb7SJiri Olsa 608556b1fb7SJiri Olsa if (evsel->cgrp) 609556b1fb7SJiri Olsa fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 610eedfcb4bSAndi Kleen } 611556b1fb7SJiri Olsa 612eedfcb4bSAndi Kleen static void printout(int id, int nr, struct perf_evsel *counter, double uval) 613eedfcb4bSAndi Kleen { 614eedfcb4bSAndi Kleen int cpu = cpu_map__id_to_cpu(id); 615556b1fb7SJiri Olsa 616eedfcb4bSAndi Kleen if (stat_config.aggr_mode == AGGR_GLOBAL) 617eedfcb4bSAndi Kleen cpu = 0; 618eedfcb4bSAndi Kleen 619eedfcb4bSAndi Kleen if (nsec_counter(counter)) 620eedfcb4bSAndi Kleen nsec_printout(id, nr, counter, uval); 621eedfcb4bSAndi Kleen else 622eedfcb4bSAndi Kleen abs_printout(id, nr, counter, uval); 623eedfcb4bSAndi Kleen 624eedfcb4bSAndi Kleen if (!csv_output && !stat_config.interval) 625eedfcb4bSAndi Kleen perf_stat__print_shadow_stats(stat_config.output, counter, 626eedfcb4bSAndi Kleen uval, cpu, 627421a50f3SJiri Olsa stat_config.aggr_mode); 628556b1fb7SJiri Olsa } 629556b1fb7SJiri Olsa 63086ee6e18SStephane Eranian static void print_aggr(char *prefix) 631d7e7a451SStephane Eranian { 6325821522eSJiri Olsa FILE *output = stat_config.output; 633d7e7a451SStephane Eranian struct perf_evsel *counter; 634601083cfSKan Liang int cpu, s, s2, id, nr; 635410136f5SStephane Eranian double uval; 636d7e7a451SStephane Eranian u64 ena, run, val; 637d7e7a451SStephane Eranian 63886ee6e18SStephane Eranian if (!(aggr_map || aggr_get_id)) 639d7e7a451SStephane Eranian return; 640d7e7a451SStephane Eranian 64186ee6e18SStephane Eranian for (s = 0; s < aggr_map->nr; s++) { 64286ee6e18SStephane Eranian id = aggr_map->map[s]; 6430050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 644d7e7a451SStephane Eranian val = ena = run = 0; 645d7e7a451SStephane Eranian nr = 0; 646d7e7a451SStephane Eranian for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 647601083cfSKan Liang s2 = aggr_get_id(perf_evsel__cpus(counter), cpu); 64886ee6e18SStephane Eranian if (s2 != id) 649d7e7a451SStephane Eranian continue; 650a6fa0038SJiri Olsa val += perf_counts(counter->counts, cpu, 0)->val; 651a6fa0038SJiri Olsa ena += perf_counts(counter->counts, cpu, 0)->ena; 652a6fa0038SJiri Olsa run += perf_counts(counter->counts, cpu, 0)->run; 653d7e7a451SStephane Eranian nr++; 654d7e7a451SStephane Eranian } 655d7e7a451SStephane Eranian if (prefix) 656d7e7a451SStephane Eranian fprintf(output, "%s", prefix); 657d7e7a451SStephane Eranian 658d7e7a451SStephane Eranian if (run == 0 || ena == 0) { 659582ec082SStephane Eranian aggr_printout(counter, id, nr); 66086ee6e18SStephane Eranian 661410136f5SStephane Eranian fprintf(output, "%*s%s", 662d7e7a451SStephane Eranian csv_output ? 0 : 18, 663d7e7a451SStephane Eranian counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 664410136f5SStephane Eranian csv_sep); 665410136f5SStephane Eranian 666410136f5SStephane Eranian fprintf(output, "%-*s%s", 667410136f5SStephane Eranian csv_output ? 0 : unit_width, 668410136f5SStephane Eranian counter->unit, csv_sep); 669410136f5SStephane Eranian 670410136f5SStephane Eranian fprintf(output, "%*s", 671410136f5SStephane Eranian csv_output ? 0 : -25, 672d7e7a451SStephane Eranian perf_evsel__name(counter)); 67386ee6e18SStephane Eranian 674d7e7a451SStephane Eranian if (counter->cgrp) 675d7e7a451SStephane Eranian fprintf(output, "%s%s", 676d7e7a451SStephane Eranian csv_sep, counter->cgrp->name); 677d7e7a451SStephane Eranian 678d73515c0SAndi Kleen print_running(run, ena); 679d7e7a451SStephane Eranian fputc('\n', output); 680d7e7a451SStephane Eranian continue; 681d7e7a451SStephane Eranian } 682410136f5SStephane Eranian uval = val * counter->scale; 683eedfcb4bSAndi Kleen printout(id, nr, counter, uval); 684d73515c0SAndi Kleen if (!csv_output) 685d7e7a451SStephane Eranian print_noise(counter, 1.0); 686d7e7a451SStephane Eranian 687d73515c0SAndi Kleen print_running(run, ena); 688d7e7a451SStephane Eranian fputc('\n', output); 689d7e7a451SStephane Eranian } 690d7e7a451SStephane Eranian } 691d7e7a451SStephane Eranian } 692d7e7a451SStephane Eranian 69332b8af82SJiri Olsa static void print_aggr_thread(struct perf_evsel *counter, char *prefix) 69432b8af82SJiri Olsa { 6955821522eSJiri Olsa FILE *output = stat_config.output; 69632b8af82SJiri Olsa int nthreads = thread_map__nr(counter->threads); 69732b8af82SJiri Olsa int ncpus = cpu_map__nr(counter->cpus); 69832b8af82SJiri Olsa int cpu, thread; 69932b8af82SJiri Olsa double uval; 70032b8af82SJiri Olsa 70132b8af82SJiri Olsa for (thread = 0; thread < nthreads; thread++) { 70232b8af82SJiri Olsa u64 ena = 0, run = 0, val = 0; 70332b8af82SJiri Olsa 70432b8af82SJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 70532b8af82SJiri Olsa val += perf_counts(counter->counts, cpu, thread)->val; 70632b8af82SJiri Olsa ena += perf_counts(counter->counts, cpu, thread)->ena; 70732b8af82SJiri Olsa run += perf_counts(counter->counts, cpu, thread)->run; 70832b8af82SJiri Olsa } 70932b8af82SJiri Olsa 71032b8af82SJiri Olsa if (prefix) 71132b8af82SJiri Olsa fprintf(output, "%s", prefix); 71232b8af82SJiri Olsa 71332b8af82SJiri Olsa uval = val * counter->scale; 714eedfcb4bSAndi Kleen printout(thread, 0, counter, uval); 71532b8af82SJiri Olsa 71632b8af82SJiri Olsa if (!csv_output) 71732b8af82SJiri Olsa print_noise(counter, 1.0); 71832b8af82SJiri Olsa 71932b8af82SJiri Olsa print_running(run, ena); 72032b8af82SJiri Olsa fputc('\n', output); 72132b8af82SJiri Olsa } 72232b8af82SJiri Olsa } 72332b8af82SJiri Olsa 72442202dd5SIngo Molnar /* 72542202dd5SIngo Molnar * Print out the results of a single counter: 726f5b4a9c3SStephane Eranian * aggregated counts in system-wide mode 72742202dd5SIngo Molnar */ 72813370a9bSStephane Eranian static void print_counter_aggr(struct perf_evsel *counter, char *prefix) 72942202dd5SIngo Molnar { 7305821522eSJiri Olsa FILE *output = stat_config.output; 731581cc8a2SJiri Olsa struct perf_stat_evsel *ps = counter->priv; 73269aad6f1SArnaldo Carvalho de Melo double avg = avg_stats(&ps->res_stats[0]); 733c52b12edSArnaldo Carvalho de Melo int scaled = counter->counts->scaled; 734410136f5SStephane Eranian double uval; 735d73515c0SAndi Kleen double avg_enabled, avg_running; 736d73515c0SAndi Kleen 737d73515c0SAndi Kleen avg_enabled = avg_stats(&ps->res_stats[1]); 738d73515c0SAndi Kleen avg_running = avg_stats(&ps->res_stats[2]); 73942202dd5SIngo Molnar 74013370a9bSStephane Eranian if (prefix) 74113370a9bSStephane Eranian fprintf(output, "%s", prefix); 74213370a9bSStephane Eranian 7433b4331d9SSuzuki K. Poulose if (scaled == -1 || !counter->supported) { 744410136f5SStephane Eranian fprintf(output, "%*s%s", 745d7470b6aSStephane Eranian csv_output ? 0 : 18, 7462cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 747410136f5SStephane Eranian csv_sep); 748410136f5SStephane Eranian fprintf(output, "%-*s%s", 749410136f5SStephane Eranian csv_output ? 0 : unit_width, 750410136f5SStephane Eranian counter->unit, csv_sep); 751410136f5SStephane Eranian fprintf(output, "%*s", 752410136f5SStephane Eranian csv_output ? 0 : -25, 7537289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 754023695d9SStephane Eranian 755023695d9SStephane Eranian if (counter->cgrp) 7564aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, counter->cgrp->name); 757023695d9SStephane Eranian 758d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 7594aa9015fSStephane Eranian fputc('\n', output); 76042202dd5SIngo Molnar return; 76142202dd5SIngo Molnar } 76242202dd5SIngo Molnar 763410136f5SStephane Eranian uval = avg * counter->scale; 764eedfcb4bSAndi Kleen printout(-1, 0, counter, uval); 765849abde9SPeter Zijlstra 7663ae9a34dSZhengyu He print_noise(counter, avg); 7673ae9a34dSZhengyu He 768d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 7694aa9015fSStephane Eranian fprintf(output, "\n"); 77042202dd5SIngo Molnar } 77142202dd5SIngo Molnar 772f5b4a9c3SStephane Eranian /* 773f5b4a9c3SStephane Eranian * Print out the results of a single counter: 774f5b4a9c3SStephane Eranian * does not use aggregated count in system-wide 775f5b4a9c3SStephane Eranian */ 77613370a9bSStephane Eranian static void print_counter(struct perf_evsel *counter, char *prefix) 777f5b4a9c3SStephane Eranian { 7785821522eSJiri Olsa FILE *output = stat_config.output; 779f5b4a9c3SStephane Eranian u64 ena, run, val; 780410136f5SStephane Eranian double uval; 781f5b4a9c3SStephane Eranian int cpu; 782f5b4a9c3SStephane Eranian 7837ae92e74SYan, Zheng for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 784a6fa0038SJiri Olsa val = perf_counts(counter->counts, cpu, 0)->val; 785a6fa0038SJiri Olsa ena = perf_counts(counter->counts, cpu, 0)->ena; 786a6fa0038SJiri Olsa run = perf_counts(counter->counts, cpu, 0)->run; 78713370a9bSStephane Eranian 78813370a9bSStephane Eranian if (prefix) 78913370a9bSStephane Eranian fprintf(output, "%s", prefix); 79013370a9bSStephane Eranian 791f5b4a9c3SStephane Eranian if (run == 0 || ena == 0) { 792410136f5SStephane Eranian fprintf(output, "CPU%*d%s%*s%s", 793d7470b6aSStephane Eranian csv_output ? 0 : -4, 7947ae92e74SYan, Zheng perf_evsel__cpus(counter)->map[cpu], csv_sep, 795d7470b6aSStephane Eranian csv_output ? 0 : 18, 7962cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 797410136f5SStephane Eranian csv_sep); 798410136f5SStephane Eranian 799410136f5SStephane Eranian fprintf(output, "%-*s%s", 800410136f5SStephane Eranian csv_output ? 0 : unit_width, 801410136f5SStephane Eranian counter->unit, csv_sep); 802410136f5SStephane Eranian 803410136f5SStephane Eranian fprintf(output, "%*s", 804410136f5SStephane Eranian csv_output ? 0 : -25, 8057289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 806f5b4a9c3SStephane Eranian 807023695d9SStephane Eranian if (counter->cgrp) 8084aa9015fSStephane Eranian fprintf(output, "%s%s", 8094aa9015fSStephane Eranian csv_sep, counter->cgrp->name); 810023695d9SStephane Eranian 811d73515c0SAndi Kleen print_running(run, ena); 8124aa9015fSStephane Eranian fputc('\n', output); 813f5b4a9c3SStephane Eranian continue; 814f5b4a9c3SStephane Eranian } 815f5b4a9c3SStephane Eranian 816410136f5SStephane Eranian uval = val * counter->scale; 817eedfcb4bSAndi Kleen printout(cpu, 0, counter, uval); 818d73515c0SAndi Kleen if (!csv_output) 819f5b4a9c3SStephane Eranian print_noise(counter, 1.0); 820d73515c0SAndi Kleen print_running(run, ena); 821f5b4a9c3SStephane Eranian 8224aa9015fSStephane Eranian fputc('\n', output); 823f5b4a9c3SStephane Eranian } 824f5b4a9c3SStephane Eranian } 825f5b4a9c3SStephane Eranian 826d4f63a47SJiri Olsa static void print_interval(char *prefix, struct timespec *ts) 82742202dd5SIngo Molnar { 8285821522eSJiri Olsa FILE *output = stat_config.output; 829d4f63a47SJiri Olsa static int num_print_interval; 830d4f63a47SJiri Olsa 831d4f63a47SJiri Olsa sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep); 832d4f63a47SJiri Olsa 833d4f63a47SJiri Olsa if (num_print_interval == 0 && !csv_output) { 834421a50f3SJiri Olsa switch (stat_config.aggr_mode) { 835d4f63a47SJiri Olsa case AGGR_SOCKET: 836d4f63a47SJiri Olsa fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); 837d4f63a47SJiri Olsa break; 838d4f63a47SJiri Olsa case AGGR_CORE: 839d4f63a47SJiri Olsa fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); 840d4f63a47SJiri Olsa break; 841d4f63a47SJiri Olsa case AGGR_NONE: 842d4f63a47SJiri Olsa fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); 843d4f63a47SJiri Olsa break; 84432b8af82SJiri Olsa case AGGR_THREAD: 84532b8af82SJiri Olsa fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit"); 84632b8af82SJiri Olsa break; 847d4f63a47SJiri Olsa case AGGR_GLOBAL: 848d4f63a47SJiri Olsa default: 849d4f63a47SJiri Olsa fprintf(output, "# time counts %*s events\n", unit_width, "unit"); 850208df99eSJiri Olsa case AGGR_UNSET: 851208df99eSJiri Olsa break; 852d4f63a47SJiri Olsa } 853d4f63a47SJiri Olsa } 854d4f63a47SJiri Olsa 855d4f63a47SJiri Olsa if (++num_print_interval == 25) 856d4f63a47SJiri Olsa num_print_interval = 0; 857d4f63a47SJiri Olsa } 858d4f63a47SJiri Olsa 859d4f63a47SJiri Olsa static void print_header(int argc, const char **argv) 860d4f63a47SJiri Olsa { 8615821522eSJiri Olsa FILE *output = stat_config.output; 86269aad6f1SArnaldo Carvalho de Melo int i; 86342202dd5SIngo Molnar 86486470930SIngo Molnar fflush(stdout); 86586470930SIngo Molnar 866d7470b6aSStephane Eranian if (!csv_output) { 8674aa9015fSStephane Eranian fprintf(output, "\n"); 8684aa9015fSStephane Eranian fprintf(output, " Performance counter stats for "); 86962d3b617SDavid Ahern if (target.system_wide) 87062d3b617SDavid Ahern fprintf(output, "\'system wide"); 87162d3b617SDavid Ahern else if (target.cpu_list) 87262d3b617SDavid Ahern fprintf(output, "\'CPU(s) %s", target.cpu_list); 873602ad878SArnaldo Carvalho de Melo else if (!target__has_task(&target)) { 8744aa9015fSStephane Eranian fprintf(output, "\'%s", argv[0]); 87586470930SIngo Molnar for (i = 1; i < argc; i++) 8764aa9015fSStephane Eranian fprintf(output, " %s", argv[i]); 87720f946b4SNamhyung Kim } else if (target.pid) 87820f946b4SNamhyung Kim fprintf(output, "process id \'%s", target.pid); 879d6d901c2SZhang, Yanmin else 88020f946b4SNamhyung Kim fprintf(output, "thread id \'%s", target.tid); 88186470930SIngo Molnar 8824aa9015fSStephane Eranian fprintf(output, "\'"); 88342202dd5SIngo Molnar if (run_count > 1) 8844aa9015fSStephane Eranian fprintf(output, " (%d runs)", run_count); 8854aa9015fSStephane Eranian fprintf(output, ":\n\n"); 886d7470b6aSStephane Eranian } 887f5b4a9c3SStephane Eranian } 88886470930SIngo Molnar 889d4f63a47SJiri Olsa static void print_footer(void) 890d4f63a47SJiri Olsa { 8915821522eSJiri Olsa FILE *output = stat_config.output; 8925821522eSJiri Olsa 893c3305257SIngo Molnar if (!null_run) 8944aa9015fSStephane Eranian fprintf(output, "\n"); 8954aa9015fSStephane Eranian fprintf(output, " %17.9f seconds time elapsed", 896506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)/1e9); 897566747e6SIngo Molnar if (run_count > 1) { 8984aa9015fSStephane Eranian fprintf(output, " "); 899f99844cbSIngo Molnar print_noise_pct(stddev_stats(&walltime_nsecs_stats), 900506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)); 901566747e6SIngo Molnar } 9024aa9015fSStephane Eranian fprintf(output, "\n\n"); 90386470930SIngo Molnar } 904d4f63a47SJiri Olsa 905d4f63a47SJiri Olsa static void print_counters(struct timespec *ts, int argc, const char **argv) 906d4f63a47SJiri Olsa { 907ec0d3d1fSJiri Olsa int interval = stat_config.interval; 908d4f63a47SJiri Olsa struct perf_evsel *counter; 909d4f63a47SJiri Olsa char buf[64], *prefix = NULL; 910d4f63a47SJiri Olsa 911d4f63a47SJiri Olsa if (interval) 912d4f63a47SJiri Olsa print_interval(prefix = buf, ts); 913d4f63a47SJiri Olsa else 914d4f63a47SJiri Olsa print_header(argc, argv); 915d4f63a47SJiri Olsa 916421a50f3SJiri Olsa switch (stat_config.aggr_mode) { 917d4f63a47SJiri Olsa case AGGR_CORE: 918d4f63a47SJiri Olsa case AGGR_SOCKET: 919d4f63a47SJiri Olsa print_aggr(prefix); 920d4f63a47SJiri Olsa break; 92132b8af82SJiri Olsa case AGGR_THREAD: 92232b8af82SJiri Olsa evlist__for_each(evsel_list, counter) 92332b8af82SJiri Olsa print_aggr_thread(counter, prefix); 92432b8af82SJiri Olsa break; 925d4f63a47SJiri Olsa case AGGR_GLOBAL: 926d4f63a47SJiri Olsa evlist__for_each(evsel_list, counter) 927d4f63a47SJiri Olsa print_counter_aggr(counter, prefix); 928d4f63a47SJiri Olsa break; 929d4f63a47SJiri Olsa case AGGR_NONE: 930d4f63a47SJiri Olsa evlist__for_each(evsel_list, counter) 931d4f63a47SJiri Olsa print_counter(counter, prefix); 932d4f63a47SJiri Olsa break; 933208df99eSJiri Olsa case AGGR_UNSET: 934d4f63a47SJiri Olsa default: 935d4f63a47SJiri Olsa break; 936d4f63a47SJiri Olsa } 937d4f63a47SJiri Olsa 938d4f63a47SJiri Olsa if (!interval && !csv_output) 939d4f63a47SJiri Olsa print_footer(); 940d4f63a47SJiri Olsa 9415821522eSJiri Olsa fflush(stat_config.output); 942d7470b6aSStephane Eranian } 94386470930SIngo Molnar 944f7b7c26eSPeter Zijlstra static volatile int signr = -1; 945f7b7c26eSPeter Zijlstra 94686470930SIngo Molnar static void skip_signal(int signo) 94786470930SIngo Molnar { 948ec0d3d1fSJiri Olsa if ((child_pid == -1) || stat_config.interval) 94960666c63SLiming Wang done = 1; 95060666c63SLiming Wang 951f7b7c26eSPeter Zijlstra signr = signo; 952d07f0b12SStephane Eranian /* 953d07f0b12SStephane Eranian * render child_pid harmless 954d07f0b12SStephane Eranian * won't send SIGTERM to a random 955d07f0b12SStephane Eranian * process in case of race condition 956d07f0b12SStephane Eranian * and fast PID recycling 957d07f0b12SStephane Eranian */ 958d07f0b12SStephane Eranian child_pid = -1; 959f7b7c26eSPeter Zijlstra } 960f7b7c26eSPeter Zijlstra 961f7b7c26eSPeter Zijlstra static void sig_atexit(void) 962f7b7c26eSPeter Zijlstra { 963d07f0b12SStephane Eranian sigset_t set, oset; 964d07f0b12SStephane Eranian 965d07f0b12SStephane Eranian /* 966d07f0b12SStephane Eranian * avoid race condition with SIGCHLD handler 967d07f0b12SStephane Eranian * in skip_signal() which is modifying child_pid 968d07f0b12SStephane Eranian * goal is to avoid send SIGTERM to a random 969d07f0b12SStephane Eranian * process 970d07f0b12SStephane Eranian */ 971d07f0b12SStephane Eranian sigemptyset(&set); 972d07f0b12SStephane Eranian sigaddset(&set, SIGCHLD); 973d07f0b12SStephane Eranian sigprocmask(SIG_BLOCK, &set, &oset); 974d07f0b12SStephane Eranian 975933da83aSChris Wilson if (child_pid != -1) 976933da83aSChris Wilson kill(child_pid, SIGTERM); 977933da83aSChris Wilson 978d07f0b12SStephane Eranian sigprocmask(SIG_SETMASK, &oset, NULL); 979d07f0b12SStephane Eranian 980f7b7c26eSPeter Zijlstra if (signr == -1) 981f7b7c26eSPeter Zijlstra return; 982f7b7c26eSPeter Zijlstra 983f7b7c26eSPeter Zijlstra signal(signr, SIG_DFL); 984f7b7c26eSPeter Zijlstra kill(getpid(), signr); 98586470930SIngo Molnar } 98686470930SIngo Molnar 9871d037ca1SIrina Tirdea static int stat__set_big_num(const struct option *opt __maybe_unused, 9881d037ca1SIrina Tirdea const char *s __maybe_unused, int unset) 989d7470b6aSStephane Eranian { 990d7470b6aSStephane Eranian big_num_opt = unset ? 0 : 1; 991d7470b6aSStephane Eranian return 0; 992d7470b6aSStephane Eranian } 993d7470b6aSStephane Eranian 994e0547311SJiri Olsa static const struct option stat_options[] = { 995e0547311SJiri Olsa OPT_BOOLEAN('T', "transaction", &transaction_run, 996e0547311SJiri Olsa "hardware transaction statistics"), 997e0547311SJiri Olsa OPT_CALLBACK('e', "event", &evsel_list, "event", 998e0547311SJiri Olsa "event selector. use 'perf list' to list available events", 999e0547311SJiri Olsa parse_events_option), 1000e0547311SJiri Olsa OPT_CALLBACK(0, "filter", &evsel_list, "filter", 1001e0547311SJiri Olsa "event filter", parse_filter), 1002e0547311SJiri Olsa OPT_BOOLEAN('i', "no-inherit", &no_inherit, 1003e0547311SJiri Olsa "child tasks do not inherit counters"), 1004e0547311SJiri Olsa OPT_STRING('p', "pid", &target.pid, "pid", 1005e0547311SJiri Olsa "stat events on existing process id"), 1006e0547311SJiri Olsa OPT_STRING('t', "tid", &target.tid, "tid", 1007e0547311SJiri Olsa "stat events on existing thread id"), 1008e0547311SJiri Olsa OPT_BOOLEAN('a', "all-cpus", &target.system_wide, 1009e0547311SJiri Olsa "system-wide collection from all CPUs"), 1010e0547311SJiri Olsa OPT_BOOLEAN('g', "group", &group, 1011e0547311SJiri Olsa "put the counters into a counter group"), 1012e0547311SJiri Olsa OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), 1013e0547311SJiri Olsa OPT_INCR('v', "verbose", &verbose, 1014e0547311SJiri Olsa "be more verbose (show counter open errors, etc)"), 1015e0547311SJiri Olsa OPT_INTEGER('r', "repeat", &run_count, 1016e0547311SJiri Olsa "repeat command and print average + stddev (max: 100, forever: 0)"), 1017e0547311SJiri Olsa OPT_BOOLEAN('n', "null", &null_run, 1018e0547311SJiri Olsa "null run - dont start any counters"), 1019e0547311SJiri Olsa OPT_INCR('d', "detailed", &detailed_run, 1020e0547311SJiri Olsa "detailed run - start a lot of events"), 1021e0547311SJiri Olsa OPT_BOOLEAN('S', "sync", &sync_run, 1022e0547311SJiri Olsa "call sync() before starting a run"), 1023e0547311SJiri Olsa OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 1024e0547311SJiri Olsa "print large numbers with thousands\' separators", 1025e0547311SJiri Olsa stat__set_big_num), 1026e0547311SJiri Olsa OPT_STRING('C', "cpu", &target.cpu_list, "cpu", 1027e0547311SJiri Olsa "list of cpus to monitor in system-wide"), 1028e0547311SJiri Olsa OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, 1029e0547311SJiri Olsa "disable CPU count aggregation", AGGR_NONE), 1030e0547311SJiri Olsa OPT_STRING('x', "field-separator", &csv_sep, "separator", 1031e0547311SJiri Olsa "print counts with custom separator"), 1032e0547311SJiri Olsa OPT_CALLBACK('G', "cgroup", &evsel_list, "name", 1033e0547311SJiri Olsa "monitor event in cgroup name only", parse_cgroups), 1034e0547311SJiri Olsa OPT_STRING('o', "output", &output_name, "file", "output file name"), 1035e0547311SJiri Olsa OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), 1036e0547311SJiri Olsa OPT_INTEGER(0, "log-fd", &output_fd, 1037e0547311SJiri Olsa "log output to fd, instead of stderr"), 1038e0547311SJiri Olsa OPT_STRING(0, "pre", &pre_cmd, "command", 1039e0547311SJiri Olsa "command to run prior to the measured command"), 1040e0547311SJiri Olsa OPT_STRING(0, "post", &post_cmd, "command", 1041e0547311SJiri Olsa "command to run after to the measured command"), 1042e0547311SJiri Olsa OPT_UINTEGER('I', "interval-print", &stat_config.interval, 1043e0547311SJiri Olsa "print counts at regular interval in ms (>= 10)"), 1044e0547311SJiri Olsa OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, 1045e0547311SJiri Olsa "aggregate counts per processor socket", AGGR_SOCKET), 1046e0547311SJiri Olsa OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, 1047e0547311SJiri Olsa "aggregate counts per physical processor core", AGGR_CORE), 1048e0547311SJiri Olsa OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, 1049e0547311SJiri Olsa "aggregate counts per thread", AGGR_THREAD), 1050e0547311SJiri Olsa OPT_UINTEGER('D', "delay", &initial_delay, 1051e0547311SJiri Olsa "ms to wait before starting measurement after program start"), 1052e0547311SJiri Olsa OPT_END() 1053e0547311SJiri Olsa }; 1054e0547311SJiri Olsa 10551fe7a300SJiri Olsa static int perf_stat__get_socket(struct cpu_map *map, int cpu) 10561fe7a300SJiri Olsa { 10571fe7a300SJiri Olsa return cpu_map__get_socket(map, cpu, NULL); 10581fe7a300SJiri Olsa } 10591fe7a300SJiri Olsa 10601fe7a300SJiri Olsa static int perf_stat__get_core(struct cpu_map *map, int cpu) 10611fe7a300SJiri Olsa { 10621fe7a300SJiri Olsa return cpu_map__get_core(map, cpu, NULL); 10631fe7a300SJiri Olsa } 10641fe7a300SJiri Olsa 10651e5a2931SJiri Olsa static int cpu_map__get_max(struct cpu_map *map) 10661e5a2931SJiri Olsa { 10671e5a2931SJiri Olsa int i, max = -1; 10681e5a2931SJiri Olsa 10691e5a2931SJiri Olsa for (i = 0; i < map->nr; i++) { 10701e5a2931SJiri Olsa if (map->map[i] > max) 10711e5a2931SJiri Olsa max = map->map[i]; 10721e5a2931SJiri Olsa } 10731e5a2931SJiri Olsa 10741e5a2931SJiri Olsa return max; 10751e5a2931SJiri Olsa } 10761e5a2931SJiri Olsa 10771e5a2931SJiri Olsa static struct cpu_map *cpus_aggr_map; 10781e5a2931SJiri Olsa 10791e5a2931SJiri Olsa static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx) 10801e5a2931SJiri Olsa { 10811e5a2931SJiri Olsa int cpu; 10821e5a2931SJiri Olsa 10831e5a2931SJiri Olsa if (idx >= map->nr) 10841e5a2931SJiri Olsa return -1; 10851e5a2931SJiri Olsa 10861e5a2931SJiri Olsa cpu = map->map[idx]; 10871e5a2931SJiri Olsa 10881e5a2931SJiri Olsa if (cpus_aggr_map->map[cpu] == -1) 10891e5a2931SJiri Olsa cpus_aggr_map->map[cpu] = get_id(map, idx); 10901e5a2931SJiri Olsa 10911e5a2931SJiri Olsa return cpus_aggr_map->map[cpu]; 10921e5a2931SJiri Olsa } 10931e5a2931SJiri Olsa 10941e5a2931SJiri Olsa static int perf_stat__get_socket_cached(struct cpu_map *map, int idx) 10951e5a2931SJiri Olsa { 10961e5a2931SJiri Olsa return perf_stat__get_aggr(perf_stat__get_socket, map, idx); 10971e5a2931SJiri Olsa } 10981e5a2931SJiri Olsa 10991e5a2931SJiri Olsa static int perf_stat__get_core_cached(struct cpu_map *map, int idx) 11001e5a2931SJiri Olsa { 11011e5a2931SJiri Olsa return perf_stat__get_aggr(perf_stat__get_core, map, idx); 11021e5a2931SJiri Olsa } 11031e5a2931SJiri Olsa 110486ee6e18SStephane Eranian static int perf_stat_init_aggr_mode(void) 110586ee6e18SStephane Eranian { 11061e5a2931SJiri Olsa int nr; 11071e5a2931SJiri Olsa 1108421a50f3SJiri Olsa switch (stat_config.aggr_mode) { 110986ee6e18SStephane Eranian case AGGR_SOCKET: 111086ee6e18SStephane Eranian if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { 111186ee6e18SStephane Eranian perror("cannot build socket map"); 111286ee6e18SStephane Eranian return -1; 111386ee6e18SStephane Eranian } 11141e5a2931SJiri Olsa aggr_get_id = perf_stat__get_socket_cached; 111586ee6e18SStephane Eranian break; 111612c08a9fSStephane Eranian case AGGR_CORE: 111712c08a9fSStephane Eranian if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { 111812c08a9fSStephane Eranian perror("cannot build core map"); 111912c08a9fSStephane Eranian return -1; 112012c08a9fSStephane Eranian } 11211e5a2931SJiri Olsa aggr_get_id = perf_stat__get_core_cached; 112212c08a9fSStephane Eranian break; 112386ee6e18SStephane Eranian case AGGR_NONE: 112486ee6e18SStephane Eranian case AGGR_GLOBAL: 112532b8af82SJiri Olsa case AGGR_THREAD: 1126208df99eSJiri Olsa case AGGR_UNSET: 112786ee6e18SStephane Eranian default: 112886ee6e18SStephane Eranian break; 112986ee6e18SStephane Eranian } 11301e5a2931SJiri Olsa 11311e5a2931SJiri Olsa /* 11321e5a2931SJiri Olsa * The evsel_list->cpus is the base we operate on, 11331e5a2931SJiri Olsa * taking the highest cpu number to be the size of 11341e5a2931SJiri Olsa * the aggregation translate cpumap. 11351e5a2931SJiri Olsa */ 11361e5a2931SJiri Olsa nr = cpu_map__get_max(evsel_list->cpus); 11371e5a2931SJiri Olsa cpus_aggr_map = cpu_map__empty_new(nr + 1); 11381e5a2931SJiri Olsa return cpus_aggr_map ? 0 : -ENOMEM; 113986ee6e18SStephane Eranian } 114086ee6e18SStephane Eranian 1141544c2ae7SMasami Hiramatsu static void perf_stat__exit_aggr_mode(void) 1142544c2ae7SMasami Hiramatsu { 1143544c2ae7SMasami Hiramatsu cpu_map__put(aggr_map); 1144544c2ae7SMasami Hiramatsu cpu_map__put(cpus_aggr_map); 1145544c2ae7SMasami Hiramatsu aggr_map = NULL; 1146544c2ae7SMasami Hiramatsu cpus_aggr_map = NULL; 1147544c2ae7SMasami Hiramatsu } 1148544c2ae7SMasami Hiramatsu 11492cba3ffbSIngo Molnar /* 11502cba3ffbSIngo Molnar * Add default attributes, if there were no attributes specified or 11512cba3ffbSIngo Molnar * if -d/--detailed, -d -d or -d -d -d is used: 11522cba3ffbSIngo Molnar */ 11532cba3ffbSIngo Molnar static int add_default_attributes(void) 11542cba3ffbSIngo Molnar { 1155b070a547SArnaldo Carvalho de Melo struct perf_event_attr default_attrs[] = { 1156b070a547SArnaldo Carvalho de Melo 1157b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, 1158b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, 1159b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, 1160b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, 1161b070a547SArnaldo Carvalho de Melo 1162b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, 1163b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, 1164b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, 1165b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, 1166b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, 1167b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, 1168b070a547SArnaldo Carvalho de Melo 1169b070a547SArnaldo Carvalho de Melo }; 1170b070a547SArnaldo Carvalho de Melo 1171b070a547SArnaldo Carvalho de Melo /* 1172b070a547SArnaldo Carvalho de Melo * Detailed stats (-d), covering the L1 and last level data caches: 1173b070a547SArnaldo Carvalho de Melo */ 1174b070a547SArnaldo Carvalho de Melo struct perf_event_attr detailed_attrs[] = { 1175b070a547SArnaldo Carvalho de Melo 1176b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1177b070a547SArnaldo Carvalho de Melo .config = 1178b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1179b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1180b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1181b070a547SArnaldo Carvalho de Melo 1182b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1183b070a547SArnaldo Carvalho de Melo .config = 1184b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1185b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1186b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1187b070a547SArnaldo Carvalho de Melo 1188b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1189b070a547SArnaldo Carvalho de Melo .config = 1190b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1191b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1192b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1193b070a547SArnaldo Carvalho de Melo 1194b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1195b070a547SArnaldo Carvalho de Melo .config = 1196b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1197b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1198b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1199b070a547SArnaldo Carvalho de Melo }; 1200b070a547SArnaldo Carvalho de Melo 1201b070a547SArnaldo Carvalho de Melo /* 1202b070a547SArnaldo Carvalho de Melo * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: 1203b070a547SArnaldo Carvalho de Melo */ 1204b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_detailed_attrs[] = { 1205b070a547SArnaldo Carvalho de Melo 1206b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1207b070a547SArnaldo Carvalho de Melo .config = 1208b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1209b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1210b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1211b070a547SArnaldo Carvalho de Melo 1212b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1213b070a547SArnaldo Carvalho de Melo .config = 1214b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1215b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1216b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1217b070a547SArnaldo Carvalho de Melo 1218b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1219b070a547SArnaldo Carvalho de Melo .config = 1220b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1221b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1222b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1223b070a547SArnaldo Carvalho de Melo 1224b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1225b070a547SArnaldo Carvalho de Melo .config = 1226b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1227b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1228b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1229b070a547SArnaldo Carvalho de Melo 1230b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1231b070a547SArnaldo Carvalho de Melo .config = 1232b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1233b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1234b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1235b070a547SArnaldo Carvalho de Melo 1236b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1237b070a547SArnaldo Carvalho de Melo .config = 1238b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1239b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1240b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1241b070a547SArnaldo Carvalho de Melo 1242b070a547SArnaldo Carvalho de Melo }; 1243b070a547SArnaldo Carvalho de Melo 1244b070a547SArnaldo Carvalho de Melo /* 1245b070a547SArnaldo Carvalho de Melo * Very, very detailed stats (-d -d -d), adding prefetch events: 1246b070a547SArnaldo Carvalho de Melo */ 1247b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_very_detailed_attrs[] = { 1248b070a547SArnaldo Carvalho de Melo 1249b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1250b070a547SArnaldo Carvalho de Melo .config = 1251b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1252b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1253b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1254b070a547SArnaldo Carvalho de Melo 1255b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1256b070a547SArnaldo Carvalho de Melo .config = 1257b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1258b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1259b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1260b070a547SArnaldo Carvalho de Melo }; 1261b070a547SArnaldo Carvalho de Melo 12622cba3ffbSIngo Molnar /* Set attrs if no event is selected and !null_run: */ 12632cba3ffbSIngo Molnar if (null_run) 12642cba3ffbSIngo Molnar return 0; 12652cba3ffbSIngo Molnar 12664cabc3d1SAndi Kleen if (transaction_run) { 12674cabc3d1SAndi Kleen int err; 12684cabc3d1SAndi Kleen if (pmu_have_event("cpu", "cycles-ct") && 12694cabc3d1SAndi Kleen pmu_have_event("cpu", "el-start")) 1270a454742cSJiri Olsa err = parse_events(evsel_list, transaction_attrs, NULL); 12714cabc3d1SAndi Kleen else 1272a454742cSJiri Olsa err = parse_events(evsel_list, transaction_limited_attrs, NULL); 1273a454742cSJiri Olsa if (err) { 12744cabc3d1SAndi Kleen fprintf(stderr, "Cannot set up transaction events\n"); 12754cabc3d1SAndi Kleen return -1; 12764cabc3d1SAndi Kleen } 12774cabc3d1SAndi Kleen return 0; 12784cabc3d1SAndi Kleen } 12794cabc3d1SAndi Kleen 12802cba3ffbSIngo Molnar if (!evsel_list->nr_entries) { 128179695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) 12822cba3ffbSIngo Molnar return -1; 12832cba3ffbSIngo Molnar } 12842cba3ffbSIngo Molnar 12852cba3ffbSIngo Molnar /* Detailed events get appended to the event list: */ 12862cba3ffbSIngo Molnar 12872cba3ffbSIngo Molnar if (detailed_run < 1) 12882cba3ffbSIngo Molnar return 0; 12892cba3ffbSIngo Molnar 12902cba3ffbSIngo Molnar /* Append detailed run extra attributes: */ 129179695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) 12922cba3ffbSIngo Molnar return -1; 12932cba3ffbSIngo Molnar 12942cba3ffbSIngo Molnar if (detailed_run < 2) 12952cba3ffbSIngo Molnar return 0; 12962cba3ffbSIngo Molnar 12972cba3ffbSIngo Molnar /* Append very detailed run extra attributes: */ 129879695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) 12992cba3ffbSIngo Molnar return -1; 13002cba3ffbSIngo Molnar 13012cba3ffbSIngo Molnar if (detailed_run < 3) 13022cba3ffbSIngo Molnar return 0; 13032cba3ffbSIngo Molnar 13042cba3ffbSIngo Molnar /* Append very, very detailed run extra attributes: */ 130579695e1bSArnaldo Carvalho de Melo return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); 13062cba3ffbSIngo Molnar } 13072cba3ffbSIngo Molnar 13084979d0c7SJiri Olsa static const char * const recort_usage[] = { 13094979d0c7SJiri Olsa "perf stat record [<options>]", 13104979d0c7SJiri Olsa NULL, 13114979d0c7SJiri Olsa }; 13124979d0c7SJiri Olsa 13133ba78bd0SJiri Olsa static void init_features(struct perf_session *session) 13143ba78bd0SJiri Olsa { 13153ba78bd0SJiri Olsa int feat; 13163ba78bd0SJiri Olsa 13173ba78bd0SJiri Olsa for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) 13183ba78bd0SJiri Olsa perf_header__set_feat(&session->header, feat); 13193ba78bd0SJiri Olsa 13203ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_BUILD_ID); 13213ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); 13223ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); 13233ba78bd0SJiri Olsa perf_header__clear_feat(&session->header, HEADER_AUXTRACE); 13243ba78bd0SJiri Olsa } 13253ba78bd0SJiri Olsa 13264979d0c7SJiri Olsa static int __cmd_record(int argc, const char **argv) 13274979d0c7SJiri Olsa { 13284979d0c7SJiri Olsa struct perf_session *session; 13294979d0c7SJiri Olsa struct perf_data_file *file = &perf_stat.file; 13304979d0c7SJiri Olsa 13314979d0c7SJiri Olsa argc = parse_options(argc, argv, stat_options, record_usage, 13324979d0c7SJiri Olsa PARSE_OPT_STOP_AT_NON_OPTION); 13334979d0c7SJiri Olsa 13344979d0c7SJiri Olsa if (output_name) 13354979d0c7SJiri Olsa file->path = output_name; 13364979d0c7SJiri Olsa 13374979d0c7SJiri Olsa session = perf_session__new(file, false, NULL); 13384979d0c7SJiri Olsa if (session == NULL) { 13394979d0c7SJiri Olsa pr_err("Perf session creation failed.\n"); 13404979d0c7SJiri Olsa return -1; 13414979d0c7SJiri Olsa } 13424979d0c7SJiri Olsa 13434979d0c7SJiri Olsa /* No pipe support ATM */ 13444979d0c7SJiri Olsa if (perf_stat.file.is_pipe) 13454979d0c7SJiri Olsa return -EINVAL; 13464979d0c7SJiri Olsa 13473ba78bd0SJiri Olsa init_features(session); 13483ba78bd0SJiri Olsa 13494979d0c7SJiri Olsa session->evlist = evsel_list; 13504979d0c7SJiri Olsa perf_stat.session = session; 13514979d0c7SJiri Olsa perf_stat.record = true; 13524979d0c7SJiri Olsa return argc; 13534979d0c7SJiri Olsa } 13544979d0c7SJiri Olsa 13551d037ca1SIrina Tirdea int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) 135686470930SIngo Molnar { 1357b070a547SArnaldo Carvalho de Melo const char * const stat_usage[] = { 1358b070a547SArnaldo Carvalho de Melo "perf stat [<options>] [<command>]", 1359b070a547SArnaldo Carvalho de Melo NULL 1360b070a547SArnaldo Carvalho de Melo }; 1361cc03c542SNamhyung Kim int status = -EINVAL, run_idx; 13624aa9015fSStephane Eranian const char *mode; 13635821522eSJiri Olsa FILE *output = stderr; 1364ec0d3d1fSJiri Olsa unsigned int interval; 13654979d0c7SJiri Olsa const char * const stat_subcommands[] = { "record" }; 136642202dd5SIngo Molnar 13675af52b51SStephane Eranian setlocale(LC_ALL, ""); 13685af52b51SStephane Eranian 1369334fe7a3SNamhyung Kim evsel_list = perf_evlist__new(); 1370361c99a6SArnaldo Carvalho de Melo if (evsel_list == NULL) 1371361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1372361c99a6SArnaldo Carvalho de Melo 13734979d0c7SJiri Olsa argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands, 13744979d0c7SJiri Olsa (const char **) stat_usage, 1375a0541234SAnton Blanchard PARSE_OPT_STOP_AT_NON_OPTION); 1376d7470b6aSStephane Eranian 13774979d0c7SJiri Olsa if (argc && !strncmp(argv[0], "rec", 3)) { 13784979d0c7SJiri Olsa argc = __cmd_record(argc, argv); 13794979d0c7SJiri Olsa if (argc < 0) 13804979d0c7SJiri Olsa return -1; 13814979d0c7SJiri Olsa } 13824979d0c7SJiri Olsa 1383ec0d3d1fSJiri Olsa interval = stat_config.interval; 1384ec0d3d1fSJiri Olsa 13854979d0c7SJiri Olsa /* 13864979d0c7SJiri Olsa * For record command the -o is already taken care of. 13874979d0c7SJiri Olsa */ 13884979d0c7SJiri Olsa if (!STAT_RECORD && output_name && strcmp(output_name, "-")) 13894aa9015fSStephane Eranian output = NULL; 13904aa9015fSStephane Eranian 139156f3bae7SJim Cromie if (output_name && output_fd) { 139256f3bae7SJim Cromie fprintf(stderr, "cannot use both --output and --log-fd\n"); 1393e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "o", 1); 1394e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "log-fd", 0); 1395cc03c542SNamhyung Kim goto out; 139656f3bae7SJim Cromie } 1397fc3e4d07SStephane Eranian 1398fc3e4d07SStephane Eranian if (output_fd < 0) { 1399fc3e4d07SStephane Eranian fprintf(stderr, "argument to --log-fd must be a > 0\n"); 1400e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "log-fd", 0); 1401cc03c542SNamhyung Kim goto out; 1402fc3e4d07SStephane Eranian } 1403fc3e4d07SStephane Eranian 14044aa9015fSStephane Eranian if (!output) { 14054aa9015fSStephane Eranian struct timespec tm; 14064aa9015fSStephane Eranian mode = append_file ? "a" : "w"; 14074aa9015fSStephane Eranian 14084aa9015fSStephane Eranian output = fopen(output_name, mode); 14094aa9015fSStephane Eranian if (!output) { 14104aa9015fSStephane Eranian perror("failed to create output file"); 1411fceda7feSDavid Ahern return -1; 14124aa9015fSStephane Eranian } 14134aa9015fSStephane Eranian clock_gettime(CLOCK_REALTIME, &tm); 14144aa9015fSStephane Eranian fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); 1415fc3e4d07SStephane Eranian } else if (output_fd > 0) { 141656f3bae7SJim Cromie mode = append_file ? "a" : "w"; 141756f3bae7SJim Cromie output = fdopen(output_fd, mode); 141856f3bae7SJim Cromie if (!output) { 141956f3bae7SJim Cromie perror("Failed opening logfd"); 142056f3bae7SJim Cromie return -errno; 142156f3bae7SJim Cromie } 14224aa9015fSStephane Eranian } 14234aa9015fSStephane Eranian 14245821522eSJiri Olsa stat_config.output = output; 14255821522eSJiri Olsa 1426d4ffd04dSJim Cromie if (csv_sep) { 1427d7470b6aSStephane Eranian csv_output = true; 1428d4ffd04dSJim Cromie if (!strcmp(csv_sep, "\\t")) 1429d4ffd04dSJim Cromie csv_sep = "\t"; 1430d4ffd04dSJim Cromie } else 1431d7470b6aSStephane Eranian csv_sep = DEFAULT_SEPARATOR; 1432d7470b6aSStephane Eranian 1433d7470b6aSStephane Eranian /* 1434d7470b6aSStephane Eranian * let the spreadsheet do the pretty-printing 1435d7470b6aSStephane Eranian */ 1436d7470b6aSStephane Eranian if (csv_output) { 143761a9f324SJim Cromie /* User explicitly passed -B? */ 1438d7470b6aSStephane Eranian if (big_num_opt == 1) { 1439d7470b6aSStephane Eranian fprintf(stderr, "-B option not supported with -x\n"); 1440e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "B", 1); 1441e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "x", 1); 1442cc03c542SNamhyung Kim goto out; 1443d7470b6aSStephane Eranian } else /* Nope, so disable big number formatting */ 1444d7470b6aSStephane Eranian big_num = false; 1445d7470b6aSStephane Eranian } else if (big_num_opt == 0) /* User passed --no-big-num */ 1446d7470b6aSStephane Eranian big_num = false; 1447d7470b6aSStephane Eranian 1448602ad878SArnaldo Carvalho de Melo if (!argc && target__none(&target)) 1449e0547311SJiri Olsa usage_with_options(stat_usage, stat_options); 1450ac3063bdSDavid Ahern 1451a7e191c3SFrederik Deweerdt if (run_count < 0) { 1452cc03c542SNamhyung Kim pr_err("Run count must be a positive number\n"); 1453e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "r", 1); 1454cc03c542SNamhyung Kim goto out; 1455a7e191c3SFrederik Deweerdt } else if (run_count == 0) { 1456a7e191c3SFrederik Deweerdt forever = true; 1457a7e191c3SFrederik Deweerdt run_count = 1; 1458a7e191c3SFrederik Deweerdt } 145986470930SIngo Molnar 1460421a50f3SJiri Olsa if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) { 146132b8af82SJiri Olsa fprintf(stderr, "The --per-thread option is only available " 146232b8af82SJiri Olsa "when monitoring via -p -t options.\n"); 1463e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "p", 1); 1464e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "t", 1); 146532b8af82SJiri Olsa goto out; 146632b8af82SJiri Olsa } 146732b8af82SJiri Olsa 146832b8af82SJiri Olsa /* 146932b8af82SJiri Olsa * no_aggr, cgroup are for system-wide only 147032b8af82SJiri Olsa * --per-thread is aggregated per thread, we dont mix it with cpu mode 147132b8af82SJiri Olsa */ 1472421a50f3SJiri Olsa if (((stat_config.aggr_mode != AGGR_GLOBAL && 1473421a50f3SJiri Olsa stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && 1474602ad878SArnaldo Carvalho de Melo !target__has_cpu(&target)) { 1475023695d9SStephane Eranian fprintf(stderr, "both cgroup and no-aggregation " 1476023695d9SStephane Eranian "modes only available in system-wide mode\n"); 1477023695d9SStephane Eranian 1478e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "G", 1); 1479e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "A", 1); 1480e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "a", 1); 1481cc03c542SNamhyung Kim goto out; 1482d7e7a451SStephane Eranian } 1483d7e7a451SStephane Eranian 14842cba3ffbSIngo Molnar if (add_default_attributes()) 1485c6264defSIngo Molnar goto out; 148686470930SIngo Molnar 1487602ad878SArnaldo Carvalho de Melo target__validate(&target); 14885c98d466SArnaldo Carvalho de Melo 148977a6f014SNamhyung Kim if (perf_evlist__create_maps(evsel_list, &target) < 0) { 1490602ad878SArnaldo Carvalho de Melo if (target__has_task(&target)) { 14915c98d466SArnaldo Carvalho de Melo pr_err("Problems finding threads of monitor\n"); 1492e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "p", 1); 1493e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "t", 1); 1494602ad878SArnaldo Carvalho de Melo } else if (target__has_cpu(&target)) { 149560d567e2SArnaldo Carvalho de Melo perror("failed to parse CPUs map"); 1496e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "C", 1); 1497e0547311SJiri Olsa parse_options_usage(NULL, stat_options, "a", 1); 1498cc03c542SNamhyung Kim } 1499cc03c542SNamhyung Kim goto out; 150060d567e2SArnaldo Carvalho de Melo } 150132b8af82SJiri Olsa 150232b8af82SJiri Olsa /* 150332b8af82SJiri Olsa * Initialize thread_map with comm names, 150432b8af82SJiri Olsa * so we could print it out on output. 150532b8af82SJiri Olsa */ 1506421a50f3SJiri Olsa if (stat_config.aggr_mode == AGGR_THREAD) 150732b8af82SJiri Olsa thread_map__read_comms(evsel_list->threads); 150832b8af82SJiri Olsa 150913370a9bSStephane Eranian if (interval && interval < 100) { 151019afd104SKan Liang if (interval < 10) { 151119afd104SKan Liang pr_err("print interval must be >= 10ms\n"); 1512e0547311SJiri Olsa parse_options_usage(stat_usage, stat_options, "I", 1); 151303ad9747SArnaldo Carvalho de Melo goto out; 151419afd104SKan Liang } else 151519afd104SKan Liang pr_warning("print interval < 100ms. " 151619afd104SKan Liang "The overhead percentage could be high in some cases. " 151719afd104SKan Liang "Please proceed with caution.\n"); 151813370a9bSStephane Eranian } 1519c45c6ea2SStephane Eranian 1520d134ffb9SArnaldo Carvalho de Melo if (perf_evlist__alloc_stats(evsel_list, interval)) 152103ad9747SArnaldo Carvalho de Melo goto out; 1522d6d901c2SZhang, Yanmin 152386ee6e18SStephane Eranian if (perf_stat_init_aggr_mode()) 152403ad9747SArnaldo Carvalho de Melo goto out; 152586ee6e18SStephane Eranian 152686470930SIngo Molnar /* 152786470930SIngo Molnar * We dont want to block the signals - that would cause 152886470930SIngo Molnar * child tasks to inherit that and Ctrl-C would not work. 152986470930SIngo Molnar * What we want is for Ctrl-C to work in the exec()-ed 153086470930SIngo Molnar * task, but being ignored by perf stat itself: 153186470930SIngo Molnar */ 1532f7b7c26eSPeter Zijlstra atexit(sig_atexit); 1533a7e191c3SFrederik Deweerdt if (!forever) 153486470930SIngo Molnar signal(SIGINT, skip_signal); 153513370a9bSStephane Eranian signal(SIGCHLD, skip_signal); 153686470930SIngo Molnar signal(SIGALRM, skip_signal); 153786470930SIngo Molnar signal(SIGABRT, skip_signal); 153886470930SIngo Molnar 153942202dd5SIngo Molnar status = 0; 1540a7e191c3SFrederik Deweerdt for (run_idx = 0; forever || run_idx < run_count; run_idx++) { 154142202dd5SIngo Molnar if (run_count != 1 && verbose) 15424aa9015fSStephane Eranian fprintf(output, "[ perf stat: executing run #%d ... ]\n", 15434aa9015fSStephane Eranian run_idx + 1); 1544f9cef0a9SIngo Molnar 154542202dd5SIngo Molnar status = run_perf_stat(argc, argv); 1546a7e191c3SFrederik Deweerdt if (forever && status != -1) { 1547d4f63a47SJiri Olsa print_counters(NULL, argc, argv); 1548254ecbc7SJiri Olsa perf_stat__reset_stats(); 1549a7e191c3SFrederik Deweerdt } 155042202dd5SIngo Molnar } 155142202dd5SIngo Molnar 1552a7e191c3SFrederik Deweerdt if (!forever && status != -1 && !interval) 1553d4f63a47SJiri Olsa print_counters(NULL, argc, argv); 1554d134ffb9SArnaldo Carvalho de Melo 15554979d0c7SJiri Olsa if (STAT_RECORD) { 15564979d0c7SJiri Olsa /* 15574979d0c7SJiri Olsa * We synthesize the kernel mmap record just so that older tools 15584979d0c7SJiri Olsa * don't emit warnings about not being able to resolve symbols 15594979d0c7SJiri Olsa * due to /proc/sys/kernel/kptr_restrict settings and instear provide 15604979d0c7SJiri Olsa * a saner message about no samples being in the perf.data file. 15614979d0c7SJiri Olsa * 15624979d0c7SJiri Olsa * This also serves to suppress a warning about f_header.data.size == 0 15634979d0c7SJiri Olsa * in header.c. -acme 15644979d0c7SJiri Olsa */ 15654979d0c7SJiri Olsa int fd = perf_data_file__fd(&perf_stat.file); 15664979d0c7SJiri Olsa int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat, 15674979d0c7SJiri Olsa process_synthesized_event, 15684979d0c7SJiri Olsa &perf_stat.session->machines.host); 15694979d0c7SJiri Olsa if (err) { 15704979d0c7SJiri Olsa pr_warning("Couldn't synthesize the kernel mmap record, harmless, " 15714979d0c7SJiri Olsa "older tools may produce warnings about this file\n."); 15724979d0c7SJiri Olsa } 15734979d0c7SJiri Olsa 15744979d0c7SJiri Olsa perf_stat.session->header.data_size += perf_stat.bytes_written; 15754979d0c7SJiri Olsa perf_session__write_header(perf_stat.session, evsel_list, fd, true); 15764979d0c7SJiri Olsa 15774979d0c7SJiri Olsa perf_session__delete(perf_stat.session); 15784979d0c7SJiri Olsa } 15794979d0c7SJiri Olsa 1580544c2ae7SMasami Hiramatsu perf_stat__exit_aggr_mode(); 1581d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evsel_list); 15820015e2e1SArnaldo Carvalho de Melo out: 15830015e2e1SArnaldo Carvalho de Melo perf_evlist__delete(evsel_list); 158442202dd5SIngo Molnar return status; 158586470930SIngo Molnar } 1586