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" 4886470930SIngo Molnar #include "util/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" 6186470930SIngo Molnar 621f16c575SPeter Zijlstra #include <stdlib.h> 6386470930SIngo Molnar #include <sys/prctl.h> 645af52b51SStephane Eranian #include <locale.h> 6586470930SIngo Molnar 66d7470b6aSStephane Eranian #define DEFAULT_SEPARATOR " " 672cee77c4SDavid Ahern #define CNTR_NOT_SUPPORTED "<not supported>" 682cee77c4SDavid Ahern #define CNTR_NOT_COUNTED "<not counted>" 69d7470b6aSStephane Eranian 7013370a9bSStephane Eranian static void print_stat(int argc, const char **argv); 7113370a9bSStephane Eranian static void print_counter_aggr(struct perf_evsel *counter, char *prefix); 7213370a9bSStephane Eranian static void print_counter(struct perf_evsel *counter, char *prefix); 7386ee6e18SStephane Eranian static void print_aggr(char *prefix); 7413370a9bSStephane Eranian 754cabc3d1SAndi Kleen /* Default events used for perf stat -T */ 76a454742cSJiri Olsa static const char *transaction_attrs = { 77a454742cSJiri Olsa "task-clock," 784cabc3d1SAndi Kleen "{" 794cabc3d1SAndi Kleen "instructions," 804cabc3d1SAndi Kleen "cycles," 814cabc3d1SAndi Kleen "cpu/cycles-t/," 824cabc3d1SAndi Kleen "cpu/tx-start/," 834cabc3d1SAndi Kleen "cpu/el-start/," 844cabc3d1SAndi Kleen "cpu/cycles-ct/" 854cabc3d1SAndi Kleen "}" 864cabc3d1SAndi Kleen }; 874cabc3d1SAndi Kleen 884cabc3d1SAndi Kleen /* More limited version when the CPU does not have all events. */ 89a454742cSJiri Olsa static const char * transaction_limited_attrs = { 90a454742cSJiri Olsa "task-clock," 914cabc3d1SAndi Kleen "{" 924cabc3d1SAndi Kleen "instructions," 934cabc3d1SAndi Kleen "cycles," 944cabc3d1SAndi Kleen "cpu/cycles-t/," 954cabc3d1SAndi Kleen "cpu/tx-start/" 964cabc3d1SAndi Kleen "}" 974cabc3d1SAndi Kleen }; 984cabc3d1SAndi Kleen 99666e6d48SRobert Richter static struct perf_evlist *evsel_list; 100361c99a6SArnaldo Carvalho de Melo 101602ad878SArnaldo Carvalho de Melo static struct target target = { 10277a6f014SNamhyung Kim .uid = UINT_MAX, 10377a6f014SNamhyung Kim }; 10442202dd5SIngo Molnar 1053d632595SJaswinder Singh Rajput static int run_count = 1; 1062e6cdf99SStephane Eranian static bool no_inherit = false; 107c0555642SIan Munsie static bool scale = true; 10886ee6e18SStephane Eranian static enum aggr_mode aggr_mode = AGGR_GLOBAL; 109d07f0b12SStephane Eranian static volatile pid_t child_pid = -1; 110c0555642SIan Munsie static bool null_run = false; 1112cba3ffbSIngo Molnar static int detailed_run = 0; 1124cabc3d1SAndi Kleen static bool transaction_run; 113201e0b06SArnaldo Carvalho de Melo static bool big_num = true; 114d7470b6aSStephane Eranian static int big_num_opt = -1; 115d7470b6aSStephane Eranian static const char *csv_sep = NULL; 116d7470b6aSStephane Eranian static bool csv_output = false; 11743bece79SLin Ming static bool group = false; 1184aa9015fSStephane Eranian static FILE *output = NULL; 1191f16c575SPeter Zijlstra static const char *pre_cmd = NULL; 1201f16c575SPeter Zijlstra static const char *post_cmd = NULL; 1211f16c575SPeter Zijlstra static bool sync_run = false; 12213370a9bSStephane Eranian static unsigned int interval = 0; 12341191688SAndi Kleen static unsigned int initial_delay = 0; 124410136f5SStephane Eranian static unsigned int unit_width = 4; /* strlen("unit") */ 125a7e191c3SFrederik Deweerdt static bool forever = false; 12613370a9bSStephane Eranian static struct timespec ref_time; 12786ee6e18SStephane Eranian static struct cpu_map *aggr_map; 12886ee6e18SStephane Eranian static int (*aggr_get_id)(struct cpu_map *m, int cpu); 1295af52b51SStephane Eranian 13060666c63SLiming Wang static volatile int done = 0; 13160666c63SLiming Wang 13213370a9bSStephane Eranian static inline void diff_timespec(struct timespec *r, struct timespec *a, 13313370a9bSStephane Eranian struct timespec *b) 13413370a9bSStephane Eranian { 13513370a9bSStephane Eranian r->tv_sec = a->tv_sec - b->tv_sec; 13613370a9bSStephane Eranian if (a->tv_nsec < b->tv_nsec) { 13713370a9bSStephane Eranian r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; 13813370a9bSStephane Eranian r->tv_sec--; 13913370a9bSStephane Eranian } else { 14013370a9bSStephane Eranian r->tv_nsec = a->tv_nsec - b->tv_nsec ; 14113370a9bSStephane Eranian } 14213370a9bSStephane Eranian } 14313370a9bSStephane Eranian 144a7e191c3SFrederik Deweerdt static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel) 145a7e191c3SFrederik Deweerdt { 14690f6bb6cSAndi Kleen int i; 14790f6bb6cSAndi Kleen struct perf_stat *ps = evsel->priv; 14890f6bb6cSAndi Kleen 14990f6bb6cSAndi Kleen for (i = 0; i < 3; i++) 15090f6bb6cSAndi Kleen init_stats(&ps->res_stats[i]); 151e2f56da1SJiri Olsa 152e2f56da1SJiri Olsa perf_stat_evsel_id_init(evsel); 153a7e191c3SFrederik Deweerdt } 154a7e191c3SFrederik Deweerdt 155c52b12edSArnaldo Carvalho de Melo static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) 15669aad6f1SArnaldo Carvalho de Melo { 157c52b12edSArnaldo Carvalho de Melo evsel->priv = zalloc(sizeof(struct perf_stat)); 158d180ac14SJiri Olsa if (evsel->priv == NULL) 15990f6bb6cSAndi Kleen return -ENOMEM; 16090f6bb6cSAndi Kleen perf_evsel__reset_stat_priv(evsel); 16190f6bb6cSAndi Kleen return 0; 16269aad6f1SArnaldo Carvalho de Melo } 16369aad6f1SArnaldo Carvalho de Melo 16469aad6f1SArnaldo Carvalho de Melo static void perf_evsel__free_stat_priv(struct perf_evsel *evsel) 16569aad6f1SArnaldo Carvalho de Melo { 16604662523SArnaldo Carvalho de Melo zfree(&evsel->priv); 16769aad6f1SArnaldo Carvalho de Melo } 16869aad6f1SArnaldo Carvalho de Melo 16913370a9bSStephane Eranian static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel) 1707ae92e74SYan, Zheng { 1719df38e82SJiri Olsa struct perf_counts *counts; 17213370a9bSStephane Eranian 1739df38e82SJiri Olsa counts = perf_counts__new(perf_evsel__nr_cpus(evsel)); 1749df38e82SJiri Olsa if (counts) 1759df38e82SJiri Olsa evsel->prev_raw_counts = counts; 17613370a9bSStephane Eranian 1779df38e82SJiri Olsa return counts ? 0 : -ENOMEM; 1787ae92e74SYan, Zheng } 1797ae92e74SYan, Zheng 18013370a9bSStephane Eranian static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel) 1817ae92e74SYan, Zheng { 1829df38e82SJiri Olsa perf_counts__delete(evsel->prev_raw_counts); 1839df38e82SJiri Olsa evsel->prev_raw_counts = NULL; 1847ae92e74SYan, Zheng } 1857ae92e74SYan, Zheng 186d134ffb9SArnaldo Carvalho de Melo static void perf_evlist__free_stats(struct perf_evlist *evlist) 187d134ffb9SArnaldo Carvalho de Melo { 188d134ffb9SArnaldo Carvalho de Melo struct perf_evsel *evsel; 189d134ffb9SArnaldo Carvalho de Melo 1900050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, evsel) { 191d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_stat_priv(evsel); 192d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_counts(evsel); 193d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_prev_raw_counts(evsel); 194d134ffb9SArnaldo Carvalho de Melo } 195d134ffb9SArnaldo Carvalho de Melo } 196d134ffb9SArnaldo Carvalho de Melo 197d134ffb9SArnaldo Carvalho de Melo static int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw) 198d134ffb9SArnaldo Carvalho de Melo { 199d134ffb9SArnaldo Carvalho de Melo struct perf_evsel *evsel; 200d134ffb9SArnaldo Carvalho de Melo 2010050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, evsel) { 202d134ffb9SArnaldo Carvalho de Melo if (perf_evsel__alloc_stat_priv(evsel) < 0 || 203d134ffb9SArnaldo Carvalho de Melo perf_evsel__alloc_counts(evsel, perf_evsel__nr_cpus(evsel)) < 0 || 204d134ffb9SArnaldo Carvalho de Melo (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel) < 0)) 205d134ffb9SArnaldo Carvalho de Melo goto out_free; 206d134ffb9SArnaldo Carvalho de Melo } 207d134ffb9SArnaldo Carvalho de Melo 208d134ffb9SArnaldo Carvalho de Melo return 0; 209d134ffb9SArnaldo Carvalho de Melo 210d134ffb9SArnaldo Carvalho de Melo out_free: 211d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evlist); 212d134ffb9SArnaldo Carvalho de Melo return -1; 213d134ffb9SArnaldo Carvalho de Melo } 214d134ffb9SArnaldo Carvalho de Melo 2151eda3b21SJiri Olsa static void perf_stat__reset_stats(struct perf_evlist *evlist) 2161eda3b21SJiri Olsa { 2171eda3b21SJiri Olsa struct perf_evsel *evsel; 2181eda3b21SJiri Olsa 2191eda3b21SJiri Olsa evlist__for_each(evlist, evsel) { 2201eda3b21SJiri Olsa perf_evsel__reset_stat_priv(evsel); 221a8e02324SJiri Olsa perf_evsel__reset_counts(evsel); 2221eda3b21SJiri Olsa } 2231eda3b21SJiri Olsa 224f87027b9SJiri Olsa perf_stat__reset_shadow_stats(); 2251eda3b21SJiri Olsa } 2261eda3b21SJiri Olsa 227cac21425SJiri Olsa static int create_perf_stat_counter(struct perf_evsel *evsel) 22886470930SIngo Molnar { 22969aad6f1SArnaldo Carvalho de Melo struct perf_event_attr *attr = &evsel->attr; 230727ab04eSArnaldo Carvalho de Melo 23186470930SIngo Molnar if (scale) 23286470930SIngo Molnar attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | 23386470930SIngo Molnar PERF_FORMAT_TOTAL_TIME_RUNNING; 23486470930SIngo Molnar 2352e6cdf99SStephane Eranian attr->inherit = !no_inherit; 2365d2cd909SArnaldo Carvalho de Melo 237602ad878SArnaldo Carvalho de Melo if (target__has_cpu(&target)) 238594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); 2395622c07bSStephane Eranian 240602ad878SArnaldo Carvalho de Melo if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) { 24186470930SIngo Molnar attr->disabled = 1; 24241191688SAndi Kleen if (!initial_delay) 24357e7986eSPaul Mackerras attr->enable_on_exec = 1; 2446be2850eSZhang, Yanmin } 245084ab9f8SArnaldo Carvalho de Melo 246594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_thread(evsel, evsel_list->threads); 24786470930SIngo Molnar } 24886470930SIngo Molnar 24986470930SIngo Molnar /* 25086470930SIngo Molnar * Does the counter have nsecs as a unit? 25186470930SIngo Molnar */ 252daec78a0SArnaldo Carvalho de Melo static inline int nsec_counter(struct perf_evsel *evsel) 25386470930SIngo Molnar { 254daec78a0SArnaldo Carvalho de Melo if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || 255daec78a0SArnaldo Carvalho de Melo perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) 25686470930SIngo Molnar return 1; 25786470930SIngo Molnar 25886470930SIngo Molnar return 0; 25986470930SIngo Molnar } 26086470930SIngo Molnar 261779d0b99SJiri Olsa static void zero_per_pkg(struct perf_evsel *counter) 262779d0b99SJiri Olsa { 263779d0b99SJiri Olsa if (counter->per_pkg_mask) 264779d0b99SJiri Olsa memset(counter->per_pkg_mask, 0, MAX_NR_CPUS); 265779d0b99SJiri Olsa } 266779d0b99SJiri Olsa 267779d0b99SJiri Olsa static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip) 268779d0b99SJiri Olsa { 269779d0b99SJiri Olsa unsigned long *mask = counter->per_pkg_mask; 270779d0b99SJiri Olsa struct cpu_map *cpus = perf_evsel__cpus(counter); 271779d0b99SJiri Olsa int s; 272779d0b99SJiri Olsa 273779d0b99SJiri Olsa *skip = false; 274779d0b99SJiri Olsa 275779d0b99SJiri Olsa if (!counter->per_pkg) 276779d0b99SJiri Olsa return 0; 277779d0b99SJiri Olsa 278779d0b99SJiri Olsa if (cpu_map__empty(cpus)) 279779d0b99SJiri Olsa return 0; 280779d0b99SJiri Olsa 281779d0b99SJiri Olsa if (!mask) { 282779d0b99SJiri Olsa mask = zalloc(MAX_NR_CPUS); 283779d0b99SJiri Olsa if (!mask) 284779d0b99SJiri Olsa return -ENOMEM; 285779d0b99SJiri Olsa 286779d0b99SJiri Olsa counter->per_pkg_mask = mask; 287779d0b99SJiri Olsa } 288779d0b99SJiri Olsa 289779d0b99SJiri Olsa s = cpu_map__get_socket(cpus, cpu); 290779d0b99SJiri Olsa if (s < 0) 291779d0b99SJiri Olsa return -1; 292779d0b99SJiri Olsa 293779d0b99SJiri Olsa *skip = test_and_set_bit(s, mask) == 1; 294779d0b99SJiri Olsa return 0; 295779d0b99SJiri Olsa } 296779d0b99SJiri Olsa 297060c4f9cSJiri Olsa static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused, 298060c4f9cSJiri Olsa struct perf_counts_values *count) 299060c4f9cSJiri Olsa { 3001971f59fSJiri Olsa struct perf_counts_values *aggr = &evsel->counts->aggr; 301779d0b99SJiri Olsa static struct perf_counts_values zero; 302779d0b99SJiri Olsa bool skip = false; 303779d0b99SJiri Olsa 304779d0b99SJiri Olsa if (check_per_pkg(evsel, cpu, &skip)) { 305779d0b99SJiri Olsa pr_err("failed to read per-pkg counter\n"); 306779d0b99SJiri Olsa return -1; 307779d0b99SJiri Olsa } 308779d0b99SJiri Olsa 309779d0b99SJiri Olsa if (skip) 310779d0b99SJiri Olsa count = &zero; 3111971f59fSJiri Olsa 312060c4f9cSJiri Olsa switch (aggr_mode) { 313060c4f9cSJiri Olsa case AGGR_CORE: 314060c4f9cSJiri Olsa case AGGR_SOCKET: 315060c4f9cSJiri Olsa case AGGR_NONE: 3166c0345b7SJiri Olsa if (!evsel->snapshot) 317060c4f9cSJiri Olsa perf_evsel__compute_deltas(evsel, cpu, count); 318060c4f9cSJiri Olsa perf_counts_values__scale(count, scale, NULL); 3191ac77e1cSJiri Olsa *perf_counts(evsel->counts, cpu) = *count; 32056f0fd45SAndi Kleen if (aggr_mode == AGGR_NONE) 321f87027b9SJiri Olsa perf_stat__update_shadow_stats(evsel, count->values, cpu); 322060c4f9cSJiri Olsa break; 323060c4f9cSJiri Olsa case AGGR_GLOBAL: 3241971f59fSJiri Olsa aggr->val += count->val; 3251971f59fSJiri Olsa if (scale) { 3261971f59fSJiri Olsa aggr->ena += count->ena; 3271971f59fSJiri Olsa aggr->run += count->run; 3281971f59fSJiri Olsa } 329060c4f9cSJiri Olsa default: 330060c4f9cSJiri Olsa break; 331060c4f9cSJiri Olsa } 332060c4f9cSJiri Olsa 333060c4f9cSJiri Olsa return 0; 334060c4f9cSJiri Olsa } 335060c4f9cSJiri Olsa 3361971f59fSJiri Olsa static int read_counter(struct perf_evsel *counter); 3371971f59fSJiri Olsa 338dcd9936aSIngo Molnar /* 33986470930SIngo Molnar * Read out the results of a single counter: 340f5b4a9c3SStephane Eranian * aggregate counts across CPUs in system-wide mode 34186470930SIngo Molnar */ 342c52b12edSArnaldo Carvalho de Melo static int read_counter_aggr(struct perf_evsel *counter) 34386470930SIngo Molnar { 3441971f59fSJiri Olsa struct perf_counts_values *aggr = &counter->counts->aggr; 34569aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps = counter->priv; 346c52b12edSArnaldo Carvalho de Melo u64 *count = counter->counts->aggr.values; 347c52b12edSArnaldo Carvalho de Melo int i; 34886470930SIngo Molnar 3491971f59fSJiri Olsa aggr->val = aggr->ena = aggr->run = 0; 3501971f59fSJiri Olsa 3511971f59fSJiri Olsa if (read_counter(counter)) 352c52b12edSArnaldo Carvalho de Melo return -1; 3539e9772c4SPeter Zijlstra 3546c0345b7SJiri Olsa if (!counter->snapshot) 3551971f59fSJiri Olsa perf_evsel__compute_deltas(counter, -1, aggr); 3561971f59fSJiri Olsa perf_counts_values__scale(aggr, scale, &counter->counts->scaled); 3571971f59fSJiri Olsa 3589e9772c4SPeter Zijlstra for (i = 0; i < 3; i++) 35969aad6f1SArnaldo Carvalho de Melo update_stats(&ps->res_stats[i], count[i]); 3609e9772c4SPeter Zijlstra 3619e9772c4SPeter Zijlstra if (verbose) { 3624aa9015fSStephane Eranian fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", 3637289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter), count[0], count[1], count[2]); 3649e9772c4SPeter Zijlstra } 3659e9772c4SPeter Zijlstra 36686470930SIngo Molnar /* 36786470930SIngo Molnar * Save the full runtime - to allow normalization during printout: 36886470930SIngo Molnar */ 369f87027b9SJiri Olsa perf_stat__update_shadow_stats(counter, count, 0); 370c52b12edSArnaldo Carvalho de Melo 371c52b12edSArnaldo Carvalho de Melo return 0; 372f5b4a9c3SStephane Eranian } 373f5b4a9c3SStephane Eranian 374f5b4a9c3SStephane Eranian /* 375f5b4a9c3SStephane Eranian * Read out the results of a single counter: 376f5b4a9c3SStephane Eranian * do not aggregate counts across CPUs in system-wide mode 377f5b4a9c3SStephane Eranian */ 378c52b12edSArnaldo Carvalho de Melo static int read_counter(struct perf_evsel *counter) 379f5b4a9c3SStephane Eranian { 3809bf1a529SJiri Olsa int nthreads = thread_map__nr(evsel_list->threads); 3819bf1a529SJiri Olsa int ncpus = perf_evsel__nr_cpus(counter); 3829bf1a529SJiri Olsa int cpu, thread; 383f5b4a9c3SStephane Eranian 3843b4331d9SSuzuki K. Poulose if (!counter->supported) 3853b4331d9SSuzuki K. Poulose return -ENOENT; 3863b4331d9SSuzuki K. Poulose 3879bf1a529SJiri Olsa if (counter->system_wide) 3889bf1a529SJiri Olsa nthreads = 1; 3899bf1a529SJiri Olsa 390779d0b99SJiri Olsa if (counter->per_pkg) 391779d0b99SJiri Olsa zero_per_pkg(counter); 392779d0b99SJiri Olsa 3939bf1a529SJiri Olsa for (thread = 0; thread < nthreads; thread++) { 3949bf1a529SJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 3959bf1a529SJiri Olsa if (perf_evsel__read_cb(counter, cpu, thread, read_cb)) 396c52b12edSArnaldo Carvalho de Melo return -1; 397f5b4a9c3SStephane Eranian } 3989bf1a529SJiri Olsa } 399c52b12edSArnaldo Carvalho de Melo 400c52b12edSArnaldo Carvalho de Melo return 0; 40186470930SIngo Molnar } 40286470930SIngo Molnar 40313370a9bSStephane Eranian static void print_interval(void) 40413370a9bSStephane Eranian { 40513370a9bSStephane Eranian static int num_print_interval; 40613370a9bSStephane Eranian struct perf_evsel *counter; 40713370a9bSStephane Eranian struct perf_stat *ps; 40813370a9bSStephane Eranian struct timespec ts, rs; 40913370a9bSStephane Eranian char prefix[64]; 41013370a9bSStephane Eranian 41186ee6e18SStephane Eranian if (aggr_mode == AGGR_GLOBAL) { 4120050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 41313370a9bSStephane Eranian ps = counter->priv; 41413370a9bSStephane Eranian memset(ps->res_stats, 0, sizeof(ps->res_stats)); 41513370a9bSStephane Eranian read_counter_aggr(counter); 41613370a9bSStephane Eranian } 41786ee6e18SStephane Eranian } else { 4180050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 41986ee6e18SStephane Eranian ps = counter->priv; 42086ee6e18SStephane Eranian memset(ps->res_stats, 0, sizeof(ps->res_stats)); 42186ee6e18SStephane Eranian read_counter(counter); 42213370a9bSStephane Eranian } 42386ee6e18SStephane Eranian } 42486ee6e18SStephane Eranian 42513370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ts); 42613370a9bSStephane Eranian diff_timespec(&rs, &ts, &ref_time); 42713370a9bSStephane Eranian sprintf(prefix, "%6lu.%09lu%s", rs.tv_sec, rs.tv_nsec, csv_sep); 42813370a9bSStephane Eranian 42913370a9bSStephane Eranian if (num_print_interval == 0 && !csv_output) { 43086ee6e18SStephane Eranian switch (aggr_mode) { 43186ee6e18SStephane Eranian case AGGR_SOCKET: 432410136f5SStephane Eranian fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); 43386ee6e18SStephane Eranian break; 43412c08a9fSStephane Eranian case AGGR_CORE: 435410136f5SStephane Eranian fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); 43612c08a9fSStephane Eranian break; 43786ee6e18SStephane Eranian case AGGR_NONE: 438410136f5SStephane Eranian fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); 43986ee6e18SStephane Eranian break; 44086ee6e18SStephane Eranian case AGGR_GLOBAL: 44186ee6e18SStephane Eranian default: 442410136f5SStephane Eranian fprintf(output, "# time counts %*s events\n", unit_width, "unit"); 44313370a9bSStephane Eranian } 44486ee6e18SStephane Eranian } 44513370a9bSStephane Eranian 44613370a9bSStephane Eranian if (++num_print_interval == 25) 44713370a9bSStephane Eranian num_print_interval = 0; 44813370a9bSStephane Eranian 44986ee6e18SStephane Eranian switch (aggr_mode) { 45012c08a9fSStephane Eranian case AGGR_CORE: 45186ee6e18SStephane Eranian case AGGR_SOCKET: 45286ee6e18SStephane Eranian print_aggr(prefix); 45386ee6e18SStephane Eranian break; 45486ee6e18SStephane Eranian case AGGR_NONE: 4550050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 45613370a9bSStephane Eranian print_counter(counter, prefix); 45786ee6e18SStephane Eranian break; 45886ee6e18SStephane Eranian case AGGR_GLOBAL: 45986ee6e18SStephane Eranian default: 4600050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 46113370a9bSStephane Eranian print_counter_aggr(counter, prefix); 46213370a9bSStephane Eranian } 4632bbf03f1SAndi Kleen 4642bbf03f1SAndi Kleen fflush(output); 46513370a9bSStephane Eranian } 46613370a9bSStephane Eranian 46741191688SAndi Kleen static void handle_initial_delay(void) 46841191688SAndi Kleen { 46941191688SAndi Kleen struct perf_evsel *counter; 47041191688SAndi Kleen 47141191688SAndi Kleen if (initial_delay) { 47241191688SAndi Kleen const int ncpus = cpu_map__nr(evsel_list->cpus), 47341191688SAndi Kleen nthreads = thread_map__nr(evsel_list->threads); 47441191688SAndi Kleen 47541191688SAndi Kleen usleep(initial_delay * 1000); 4760050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 47741191688SAndi Kleen perf_evsel__enable(counter, ncpus, nthreads); 47841191688SAndi Kleen } 47941191688SAndi Kleen } 48041191688SAndi Kleen 481f33cbe72SArnaldo Carvalho de Melo static volatile int workload_exec_errno; 4826af206fdSArnaldo Carvalho de Melo 4836af206fdSArnaldo Carvalho de Melo /* 4846af206fdSArnaldo Carvalho de Melo * perf_evlist__prepare_workload will send a SIGUSR1 4856af206fdSArnaldo Carvalho de Melo * if the fork fails, since we asked by setting its 4866af206fdSArnaldo Carvalho de Melo * want_signal to true. 4876af206fdSArnaldo Carvalho de Melo */ 488f33cbe72SArnaldo Carvalho de Melo static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, 489f33cbe72SArnaldo Carvalho de Melo void *ucontext __maybe_unused) 4906af206fdSArnaldo Carvalho de Melo { 491f33cbe72SArnaldo Carvalho de Melo workload_exec_errno = info->si_value.sival_int; 4926af206fdSArnaldo Carvalho de Melo } 4936af206fdSArnaldo Carvalho de Melo 494acf28922SNamhyung Kim static int __run_perf_stat(int argc, const char **argv) 49586470930SIngo Molnar { 49656e52e85SArnaldo Carvalho de Melo char msg[512]; 49786470930SIngo Molnar unsigned long long t0, t1; 498cac21425SJiri Olsa struct perf_evsel *counter; 49913370a9bSStephane Eranian struct timespec ts; 500410136f5SStephane Eranian size_t l; 50142202dd5SIngo Molnar int status = 0; 5026be2850eSZhang, Yanmin const bool forks = (argc > 0); 50386470930SIngo Molnar 50413370a9bSStephane Eranian if (interval) { 50513370a9bSStephane Eranian ts.tv_sec = interval / 1000; 50613370a9bSStephane Eranian ts.tv_nsec = (interval % 1000) * 1000000; 50713370a9bSStephane Eranian } else { 50813370a9bSStephane Eranian ts.tv_sec = 1; 50913370a9bSStephane Eranian ts.tv_nsec = 0; 51013370a9bSStephane Eranian } 51113370a9bSStephane Eranian 512acf28922SNamhyung Kim if (forks) { 513735f7e0bSArnaldo Carvalho de Melo if (perf_evlist__prepare_workload(evsel_list, &target, argv, false, 514735f7e0bSArnaldo Carvalho de Melo workload_exec_failed_signal) < 0) { 515acf28922SNamhyung Kim perror("failed to prepare workload"); 516fceda7feSDavid Ahern return -1; 517051ae7f7SPaul Mackerras } 518d20a47e7SNamhyung Kim child_pid = evsel_list->workload.pid; 51960666c63SLiming Wang } 520051ae7f7SPaul Mackerras 5216a4bb04cSJiri Olsa if (group) 52263dab225SArnaldo Carvalho de Melo perf_evlist__set_leader(evsel_list); 5236a4bb04cSJiri Olsa 5240050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 525cac21425SJiri Olsa if (create_perf_stat_counter(counter) < 0) { 526979987a5SDavid Ahern /* 527979987a5SDavid Ahern * PPC returns ENXIO for HW counters until 2.6.37 528979987a5SDavid Ahern * (behavior changed with commit b0a873e). 529979987a5SDavid Ahern */ 53038f6ae1eSAnton Blanchard if (errno == EINVAL || errno == ENOSYS || 531979987a5SDavid Ahern errno == ENOENT || errno == EOPNOTSUPP || 532979987a5SDavid Ahern errno == ENXIO) { 533c63ca0c0SDavid Ahern if (verbose) 534c63ca0c0SDavid Ahern ui__warning("%s event is not supported by the kernel.\n", 5357289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 5362cee77c4SDavid Ahern counter->supported = false; 537cb5ef600SKan Liang 538cb5ef600SKan Liang if ((counter->leader != counter) || 539cb5ef600SKan Liang !(counter->leader->nr_members > 1)) 540ede70290SIngo Molnar continue; 541c63ca0c0SDavid Ahern } 542ede70290SIngo Molnar 54356e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &target, 54456e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 54556e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 54656e52e85SArnaldo Carvalho de Melo 547084ab9f8SArnaldo Carvalho de Melo if (child_pid != -1) 548084ab9f8SArnaldo Carvalho de Melo kill(child_pid, SIGTERM); 549fceda7feSDavid Ahern 550084ab9f8SArnaldo Carvalho de Melo return -1; 551084ab9f8SArnaldo Carvalho de Melo } 5522cee77c4SDavid Ahern counter->supported = true; 553410136f5SStephane Eranian 554410136f5SStephane Eranian l = strlen(counter->unit); 555410136f5SStephane Eranian if (l > unit_width) 556410136f5SStephane Eranian unit_width = l; 55748290609SArnaldo Carvalho de Melo } 55886470930SIngo Molnar 55923d4aad4SArnaldo Carvalho de Melo if (perf_evlist__apply_filters(evsel_list, &counter)) { 56023d4aad4SArnaldo Carvalho de Melo error("failed to set filter \"%s\" on event %s with %d (%s)\n", 56123d4aad4SArnaldo Carvalho de Melo counter->filter, perf_evsel__name(counter), errno, 562759e612bSMasami Hiramatsu strerror_r(errno, msg, sizeof(msg))); 563cfd748aeSFrederic Weisbecker return -1; 564cfd748aeSFrederic Weisbecker } 565cfd748aeSFrederic Weisbecker 56686470930SIngo Molnar /* 56786470930SIngo Molnar * Enable counters and exec the command: 56886470930SIngo Molnar */ 56986470930SIngo Molnar t0 = rdclock(); 57013370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ref_time); 57186470930SIngo Molnar 57260666c63SLiming Wang if (forks) { 573acf28922SNamhyung Kim perf_evlist__start_workload(evsel_list); 57441191688SAndi Kleen handle_initial_delay(); 575acf28922SNamhyung Kim 57613370a9bSStephane Eranian if (interval) { 57713370a9bSStephane Eranian while (!waitpid(child_pid, &status, WNOHANG)) { 57813370a9bSStephane Eranian nanosleep(&ts, NULL); 57913370a9bSStephane Eranian print_interval(); 58013370a9bSStephane Eranian } 58113370a9bSStephane Eranian } 58242202dd5SIngo Molnar wait(&status); 5836af206fdSArnaldo Carvalho de Melo 584f33cbe72SArnaldo Carvalho de Melo if (workload_exec_errno) { 585f33cbe72SArnaldo Carvalho de Melo const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); 586f33cbe72SArnaldo Carvalho de Melo pr_err("Workload failed: %s\n", emsg); 5876af206fdSArnaldo Carvalho de Melo return -1; 588f33cbe72SArnaldo Carvalho de Melo } 5896af206fdSArnaldo Carvalho de Melo 59033e49ea7SAndi Kleen if (WIFSIGNALED(status)) 59133e49ea7SAndi Kleen psignal(WTERMSIG(status), argv[0]); 59260666c63SLiming Wang } else { 59341191688SAndi Kleen handle_initial_delay(); 59413370a9bSStephane Eranian while (!done) { 59513370a9bSStephane Eranian nanosleep(&ts, NULL); 59613370a9bSStephane Eranian if (interval) 59713370a9bSStephane Eranian print_interval(); 59813370a9bSStephane Eranian } 59960666c63SLiming Wang } 60086470930SIngo Molnar 60186470930SIngo Molnar t1 = rdclock(); 60286470930SIngo Molnar 6039e9772c4SPeter Zijlstra update_stats(&walltime_nsecs_stats, t1 - t0); 60442202dd5SIngo Molnar 60586ee6e18SStephane Eranian if (aggr_mode == AGGR_GLOBAL) { 6060050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 607c52b12edSArnaldo Carvalho de Melo read_counter_aggr(counter); 6087ae92e74SYan, Zheng perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 609b3a319d5SNamhyung Kim thread_map__nr(evsel_list->threads)); 610c52b12edSArnaldo Carvalho de Melo } 61186ee6e18SStephane Eranian } else { 6120050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 61386ee6e18SStephane Eranian read_counter(counter); 61486ee6e18SStephane Eranian perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 1); 61586ee6e18SStephane Eranian } 616c52b12edSArnaldo Carvalho de Melo } 617c52b12edSArnaldo Carvalho de Melo 61842202dd5SIngo Molnar return WEXITSTATUS(status); 61942202dd5SIngo Molnar } 62042202dd5SIngo Molnar 62141cde476SArnaldo Carvalho de Melo static int run_perf_stat(int argc, const char **argv) 6221f16c575SPeter Zijlstra { 6231f16c575SPeter Zijlstra int ret; 6241f16c575SPeter Zijlstra 6251f16c575SPeter Zijlstra if (pre_cmd) { 6261f16c575SPeter Zijlstra ret = system(pre_cmd); 6271f16c575SPeter Zijlstra if (ret) 6281f16c575SPeter Zijlstra return ret; 6291f16c575SPeter Zijlstra } 6301f16c575SPeter Zijlstra 6311f16c575SPeter Zijlstra if (sync_run) 6321f16c575SPeter Zijlstra sync(); 6331f16c575SPeter Zijlstra 6341f16c575SPeter Zijlstra ret = __run_perf_stat(argc, argv); 6351f16c575SPeter Zijlstra if (ret) 6361f16c575SPeter Zijlstra return ret; 6371f16c575SPeter Zijlstra 6381f16c575SPeter Zijlstra if (post_cmd) { 6391f16c575SPeter Zijlstra ret = system(post_cmd); 6401f16c575SPeter Zijlstra if (ret) 6411f16c575SPeter Zijlstra return ret; 6421f16c575SPeter Zijlstra } 6431f16c575SPeter Zijlstra 6441f16c575SPeter Zijlstra return ret; 6451f16c575SPeter Zijlstra } 6461f16c575SPeter Zijlstra 647d73515c0SAndi Kleen static void print_running(u64 run, u64 ena) 648d73515c0SAndi Kleen { 649d73515c0SAndi Kleen if (csv_output) { 650d73515c0SAndi Kleen fprintf(output, "%s%" PRIu64 "%s%.2f", 651d73515c0SAndi Kleen csv_sep, 652d73515c0SAndi Kleen run, 653d73515c0SAndi Kleen csv_sep, 654d73515c0SAndi Kleen ena ? 100.0 * run / ena : 100.0); 655d73515c0SAndi Kleen } else if (run != ena) { 656d73515c0SAndi Kleen fprintf(output, " (%.2f%%)", 100.0 * run / ena); 657d73515c0SAndi Kleen } 658d73515c0SAndi Kleen } 659d73515c0SAndi Kleen 660f99844cbSIngo Molnar static void print_noise_pct(double total, double avg) 661f99844cbSIngo Molnar { 6620007eceaSXiao Guangrong double pct = rel_stddev_stats(total, avg); 663f99844cbSIngo Molnar 6643ae9a34dSZhengyu He if (csv_output) 6654aa9015fSStephane Eranian fprintf(output, "%s%.2f%%", csv_sep, pct); 666a1bca6ccSJim Cromie else if (pct) 6674aa9015fSStephane Eranian fprintf(output, " ( +-%6.2f%% )", pct); 668f99844cbSIngo Molnar } 669f99844cbSIngo Molnar 67069aad6f1SArnaldo Carvalho de Melo static void print_noise(struct perf_evsel *evsel, double avg) 67142202dd5SIngo Molnar { 67269aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps; 67369aad6f1SArnaldo Carvalho de Melo 674849abde9SPeter Zijlstra if (run_count == 1) 675849abde9SPeter Zijlstra return; 676849abde9SPeter Zijlstra 67769aad6f1SArnaldo Carvalho de Melo ps = evsel->priv; 678f99844cbSIngo Molnar print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); 67942202dd5SIngo Molnar } 68042202dd5SIngo Molnar 68112c08a9fSStephane Eranian static void aggr_printout(struct perf_evsel *evsel, int id, int nr) 68242202dd5SIngo Molnar { 68386ee6e18SStephane Eranian switch (aggr_mode) { 68412c08a9fSStephane Eranian case AGGR_CORE: 68512c08a9fSStephane Eranian fprintf(output, "S%d-C%*d%s%*d%s", 68612c08a9fSStephane Eranian cpu_map__id_to_socket(id), 68712c08a9fSStephane Eranian csv_output ? 0 : -8, 68812c08a9fSStephane Eranian cpu_map__id_to_cpu(id), 68912c08a9fSStephane Eranian csv_sep, 69012c08a9fSStephane Eranian csv_output ? 0 : 4, 69112c08a9fSStephane Eranian nr, 69212c08a9fSStephane Eranian csv_sep); 69312c08a9fSStephane Eranian break; 69486ee6e18SStephane Eranian case AGGR_SOCKET: 69586ee6e18SStephane Eranian fprintf(output, "S%*d%s%*d%s", 696d7e7a451SStephane Eranian csv_output ? 0 : -5, 69712c08a9fSStephane Eranian id, 698d7e7a451SStephane Eranian csv_sep, 699d7e7a451SStephane Eranian csv_output ? 0 : 4, 700d7e7a451SStephane Eranian nr, 701d7e7a451SStephane Eranian csv_sep); 70286ee6e18SStephane Eranian break; 70386ee6e18SStephane Eranian case AGGR_NONE: 70486ee6e18SStephane Eranian fprintf(output, "CPU%*d%s", 705d7470b6aSStephane Eranian csv_output ? 0 : -4, 70612c08a9fSStephane Eranian perf_evsel__cpus(evsel)->map[id], csv_sep); 70786ee6e18SStephane Eranian break; 70886ee6e18SStephane Eranian case AGGR_GLOBAL: 70986ee6e18SStephane Eranian default: 71086ee6e18SStephane Eranian break; 71186ee6e18SStephane Eranian } 71286ee6e18SStephane Eranian } 713d7470b6aSStephane Eranian 714da88c7f7SAndi Kleen static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) 71586ee6e18SStephane Eranian { 71686ee6e18SStephane Eranian double msecs = avg / 1e6; 717410136f5SStephane Eranian const char *fmt_v, *fmt_n; 7184bbe5a61SDavid Ahern char name[25]; 71986ee6e18SStephane Eranian 720410136f5SStephane Eranian fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; 721410136f5SStephane Eranian fmt_n = csv_output ? "%s" : "%-25s"; 722410136f5SStephane Eranian 723da88c7f7SAndi Kleen aggr_printout(evsel, id, nr); 72486ee6e18SStephane Eranian 7254bbe5a61SDavid Ahern scnprintf(name, sizeof(name), "%s%s", 7264bbe5a61SDavid Ahern perf_evsel__name(evsel), csv_output ? "" : " (msec)"); 727410136f5SStephane Eranian 728410136f5SStephane Eranian fprintf(output, fmt_v, msecs, csv_sep); 729410136f5SStephane Eranian 730410136f5SStephane Eranian if (csv_output) 731410136f5SStephane Eranian fprintf(output, "%s%s", evsel->unit, csv_sep); 732410136f5SStephane Eranian else 733410136f5SStephane Eranian fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); 734410136f5SStephane Eranian 735410136f5SStephane Eranian fprintf(output, fmt_n, name); 736d7470b6aSStephane Eranian 737023695d9SStephane Eranian if (evsel->cgrp) 7384aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 739023695d9SStephane Eranian 74013370a9bSStephane Eranian if (csv_output || interval) 741d7470b6aSStephane Eranian return; 74242202dd5SIngo Molnar 743daec78a0SArnaldo Carvalho de Melo if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) 7444aa9015fSStephane Eranian fprintf(output, " # %8.3f CPUs utilized ", 7454aa9015fSStephane Eranian avg / avg_stats(&walltime_nsecs_stats)); 7469dac6a29SNamhyung Kim else 7479dac6a29SNamhyung Kim fprintf(output, " "); 74842202dd5SIngo Molnar } 74942202dd5SIngo Molnar 750556b1fb7SJiri Olsa static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) 751556b1fb7SJiri Olsa { 752556b1fb7SJiri Olsa double sc = evsel->scale; 753556b1fb7SJiri Olsa const char *fmt; 754556b1fb7SJiri Olsa int cpu = cpu_map__id_to_cpu(id); 755556b1fb7SJiri Olsa 756556b1fb7SJiri Olsa if (csv_output) { 757556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; 758556b1fb7SJiri Olsa } else { 759556b1fb7SJiri Olsa if (big_num) 760556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; 761556b1fb7SJiri Olsa else 762556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; 763556b1fb7SJiri Olsa } 764556b1fb7SJiri Olsa 765556b1fb7SJiri Olsa aggr_printout(evsel, id, nr); 766556b1fb7SJiri Olsa 767556b1fb7SJiri Olsa if (aggr_mode == AGGR_GLOBAL) 768556b1fb7SJiri Olsa cpu = 0; 769556b1fb7SJiri Olsa 770556b1fb7SJiri Olsa fprintf(output, fmt, avg, csv_sep); 771556b1fb7SJiri Olsa 772556b1fb7SJiri Olsa if (evsel->unit) 773556b1fb7SJiri Olsa fprintf(output, "%-*s%s", 774556b1fb7SJiri Olsa csv_output ? 0 : unit_width, 775556b1fb7SJiri Olsa evsel->unit, csv_sep); 776556b1fb7SJiri Olsa 777556b1fb7SJiri Olsa fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); 778556b1fb7SJiri Olsa 779556b1fb7SJiri Olsa if (evsel->cgrp) 780556b1fb7SJiri Olsa fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 781556b1fb7SJiri Olsa 782556b1fb7SJiri Olsa if (csv_output || interval) 783556b1fb7SJiri Olsa return; 784556b1fb7SJiri Olsa 785f87027b9SJiri Olsa perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode); 786556b1fb7SJiri Olsa } 787556b1fb7SJiri Olsa 78886ee6e18SStephane Eranian static void print_aggr(char *prefix) 789d7e7a451SStephane Eranian { 790d7e7a451SStephane Eranian struct perf_evsel *counter; 791582ec082SStephane Eranian int cpu, cpu2, s, s2, id, nr; 792410136f5SStephane Eranian double uval; 793d7e7a451SStephane Eranian u64 ena, run, val; 794d7e7a451SStephane Eranian 79586ee6e18SStephane Eranian if (!(aggr_map || aggr_get_id)) 796d7e7a451SStephane Eranian return; 797d7e7a451SStephane Eranian 79886ee6e18SStephane Eranian for (s = 0; s < aggr_map->nr; s++) { 79986ee6e18SStephane Eranian id = aggr_map->map[s]; 8000050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 801d7e7a451SStephane Eranian val = ena = run = 0; 802d7e7a451SStephane Eranian nr = 0; 803d7e7a451SStephane Eranian for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 804582ec082SStephane Eranian cpu2 = perf_evsel__cpus(counter)->map[cpu]; 805582ec082SStephane Eranian s2 = aggr_get_id(evsel_list->cpus, cpu2); 80686ee6e18SStephane Eranian if (s2 != id) 807d7e7a451SStephane Eranian continue; 8081ac77e1cSJiri Olsa val += perf_counts(counter->counts, cpu)->val; 8091ac77e1cSJiri Olsa ena += perf_counts(counter->counts, cpu)->ena; 8101ac77e1cSJiri Olsa run += perf_counts(counter->counts, cpu)->run; 811d7e7a451SStephane Eranian nr++; 812d7e7a451SStephane Eranian } 813d7e7a451SStephane Eranian if (prefix) 814d7e7a451SStephane Eranian fprintf(output, "%s", prefix); 815d7e7a451SStephane Eranian 816d7e7a451SStephane Eranian if (run == 0 || ena == 0) { 817582ec082SStephane Eranian aggr_printout(counter, id, nr); 81886ee6e18SStephane Eranian 819410136f5SStephane Eranian fprintf(output, "%*s%s", 820d7e7a451SStephane Eranian csv_output ? 0 : 18, 821d7e7a451SStephane Eranian counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 822410136f5SStephane Eranian csv_sep); 823410136f5SStephane Eranian 824410136f5SStephane Eranian fprintf(output, "%-*s%s", 825410136f5SStephane Eranian csv_output ? 0 : unit_width, 826410136f5SStephane Eranian counter->unit, csv_sep); 827410136f5SStephane Eranian 828410136f5SStephane Eranian fprintf(output, "%*s", 829410136f5SStephane Eranian csv_output ? 0 : -25, 830d7e7a451SStephane Eranian perf_evsel__name(counter)); 83186ee6e18SStephane Eranian 832d7e7a451SStephane Eranian if (counter->cgrp) 833d7e7a451SStephane Eranian fprintf(output, "%s%s", 834d7e7a451SStephane Eranian csv_sep, counter->cgrp->name); 835d7e7a451SStephane Eranian 836d73515c0SAndi Kleen print_running(run, ena); 837d7e7a451SStephane Eranian fputc('\n', output); 838d7e7a451SStephane Eranian continue; 839d7e7a451SStephane Eranian } 840410136f5SStephane Eranian uval = val * counter->scale; 841d7e7a451SStephane Eranian 842d7e7a451SStephane Eranian if (nsec_counter(counter)) 843410136f5SStephane Eranian nsec_printout(id, nr, counter, uval); 844d7e7a451SStephane Eranian else 845410136f5SStephane Eranian abs_printout(id, nr, counter, uval); 846d7e7a451SStephane Eranian 847d73515c0SAndi Kleen if (!csv_output) 848d7e7a451SStephane Eranian print_noise(counter, 1.0); 849d7e7a451SStephane Eranian 850d73515c0SAndi Kleen print_running(run, ena); 851d7e7a451SStephane Eranian fputc('\n', output); 852d7e7a451SStephane Eranian } 853d7e7a451SStephane Eranian } 854d7e7a451SStephane Eranian } 855d7e7a451SStephane Eranian 85642202dd5SIngo Molnar /* 85742202dd5SIngo Molnar * Print out the results of a single counter: 858f5b4a9c3SStephane Eranian * aggregated counts in system-wide mode 85942202dd5SIngo Molnar */ 86013370a9bSStephane Eranian static void print_counter_aggr(struct perf_evsel *counter, char *prefix) 86142202dd5SIngo Molnar { 86269aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps = counter->priv; 86369aad6f1SArnaldo Carvalho de Melo double avg = avg_stats(&ps->res_stats[0]); 864c52b12edSArnaldo Carvalho de Melo int scaled = counter->counts->scaled; 865410136f5SStephane Eranian double uval; 866d73515c0SAndi Kleen double avg_enabled, avg_running; 867d73515c0SAndi Kleen 868d73515c0SAndi Kleen avg_enabled = avg_stats(&ps->res_stats[1]); 869d73515c0SAndi Kleen avg_running = avg_stats(&ps->res_stats[2]); 87042202dd5SIngo Molnar 87113370a9bSStephane Eranian if (prefix) 87213370a9bSStephane Eranian fprintf(output, "%s", prefix); 87313370a9bSStephane Eranian 8743b4331d9SSuzuki K. Poulose if (scaled == -1 || !counter->supported) { 875410136f5SStephane Eranian fprintf(output, "%*s%s", 876d7470b6aSStephane Eranian csv_output ? 0 : 18, 8772cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 878410136f5SStephane Eranian csv_sep); 879410136f5SStephane Eranian fprintf(output, "%-*s%s", 880410136f5SStephane Eranian csv_output ? 0 : unit_width, 881410136f5SStephane Eranian counter->unit, csv_sep); 882410136f5SStephane Eranian fprintf(output, "%*s", 883410136f5SStephane Eranian csv_output ? 0 : -25, 8847289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 885023695d9SStephane Eranian 886023695d9SStephane Eranian if (counter->cgrp) 8874aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, counter->cgrp->name); 888023695d9SStephane Eranian 889d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 8904aa9015fSStephane Eranian fputc('\n', output); 89142202dd5SIngo Molnar return; 89242202dd5SIngo Molnar } 89342202dd5SIngo Molnar 894410136f5SStephane Eranian uval = avg * counter->scale; 895410136f5SStephane Eranian 89642202dd5SIngo Molnar if (nsec_counter(counter)) 897410136f5SStephane Eranian nsec_printout(-1, 0, counter, uval); 89842202dd5SIngo Molnar else 899410136f5SStephane Eranian abs_printout(-1, 0, counter, uval); 900849abde9SPeter Zijlstra 9013ae9a34dSZhengyu He print_noise(counter, avg); 9023ae9a34dSZhengyu He 903d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 9044aa9015fSStephane Eranian fprintf(output, "\n"); 90542202dd5SIngo Molnar } 90642202dd5SIngo Molnar 907f5b4a9c3SStephane Eranian /* 908f5b4a9c3SStephane Eranian * Print out the results of a single counter: 909f5b4a9c3SStephane Eranian * does not use aggregated count in system-wide 910f5b4a9c3SStephane Eranian */ 91113370a9bSStephane Eranian static void print_counter(struct perf_evsel *counter, char *prefix) 912f5b4a9c3SStephane Eranian { 913f5b4a9c3SStephane Eranian u64 ena, run, val; 914410136f5SStephane Eranian double uval; 915f5b4a9c3SStephane Eranian int cpu; 916f5b4a9c3SStephane Eranian 9177ae92e74SYan, Zheng for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 9181ac77e1cSJiri Olsa val = perf_counts(counter->counts, cpu)->val; 9191ac77e1cSJiri Olsa ena = perf_counts(counter->counts, cpu)->ena; 9201ac77e1cSJiri Olsa run = perf_counts(counter->counts, cpu)->run; 92113370a9bSStephane Eranian 92213370a9bSStephane Eranian if (prefix) 92313370a9bSStephane Eranian fprintf(output, "%s", prefix); 92413370a9bSStephane Eranian 925f5b4a9c3SStephane Eranian if (run == 0 || ena == 0) { 926410136f5SStephane Eranian fprintf(output, "CPU%*d%s%*s%s", 927d7470b6aSStephane Eranian csv_output ? 0 : -4, 9287ae92e74SYan, Zheng perf_evsel__cpus(counter)->map[cpu], csv_sep, 929d7470b6aSStephane Eranian csv_output ? 0 : 18, 9302cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 931410136f5SStephane Eranian csv_sep); 932410136f5SStephane Eranian 933410136f5SStephane Eranian fprintf(output, "%-*s%s", 934410136f5SStephane Eranian csv_output ? 0 : unit_width, 935410136f5SStephane Eranian counter->unit, csv_sep); 936410136f5SStephane Eranian 937410136f5SStephane Eranian fprintf(output, "%*s", 938410136f5SStephane Eranian csv_output ? 0 : -25, 9397289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 940f5b4a9c3SStephane Eranian 941023695d9SStephane Eranian if (counter->cgrp) 9424aa9015fSStephane Eranian fprintf(output, "%s%s", 9434aa9015fSStephane Eranian csv_sep, counter->cgrp->name); 944023695d9SStephane Eranian 945d73515c0SAndi Kleen print_running(run, ena); 9464aa9015fSStephane Eranian fputc('\n', output); 947f5b4a9c3SStephane Eranian continue; 948f5b4a9c3SStephane Eranian } 949f5b4a9c3SStephane Eranian 950410136f5SStephane Eranian uval = val * counter->scale; 951410136f5SStephane Eranian 952f5b4a9c3SStephane Eranian if (nsec_counter(counter)) 953410136f5SStephane Eranian nsec_printout(cpu, 0, counter, uval); 954f5b4a9c3SStephane Eranian else 955410136f5SStephane Eranian abs_printout(cpu, 0, counter, uval); 956f5b4a9c3SStephane Eranian 957d73515c0SAndi Kleen if (!csv_output) 958f5b4a9c3SStephane Eranian print_noise(counter, 1.0); 959d73515c0SAndi Kleen print_running(run, ena); 960f5b4a9c3SStephane Eranian 9614aa9015fSStephane Eranian fputc('\n', output); 962f5b4a9c3SStephane Eranian } 963f5b4a9c3SStephane Eranian } 964f5b4a9c3SStephane Eranian 96542202dd5SIngo Molnar static void print_stat(int argc, const char **argv) 96642202dd5SIngo Molnar { 96769aad6f1SArnaldo Carvalho de Melo struct perf_evsel *counter; 96869aad6f1SArnaldo Carvalho de Melo int i; 96942202dd5SIngo Molnar 97086470930SIngo Molnar fflush(stdout); 97186470930SIngo Molnar 972d7470b6aSStephane Eranian if (!csv_output) { 9734aa9015fSStephane Eranian fprintf(output, "\n"); 9744aa9015fSStephane Eranian fprintf(output, " Performance counter stats for "); 97562d3b617SDavid Ahern if (target.system_wide) 97662d3b617SDavid Ahern fprintf(output, "\'system wide"); 97762d3b617SDavid Ahern else if (target.cpu_list) 97862d3b617SDavid Ahern fprintf(output, "\'CPU(s) %s", target.cpu_list); 979602ad878SArnaldo Carvalho de Melo else if (!target__has_task(&target)) { 9804aa9015fSStephane Eranian fprintf(output, "\'%s", argv[0]); 98186470930SIngo Molnar for (i = 1; i < argc; i++) 9824aa9015fSStephane Eranian fprintf(output, " %s", argv[i]); 98320f946b4SNamhyung Kim } else if (target.pid) 98420f946b4SNamhyung Kim fprintf(output, "process id \'%s", target.pid); 985d6d901c2SZhang, Yanmin else 98620f946b4SNamhyung Kim fprintf(output, "thread id \'%s", target.tid); 98786470930SIngo Molnar 9884aa9015fSStephane Eranian fprintf(output, "\'"); 98942202dd5SIngo Molnar if (run_count > 1) 9904aa9015fSStephane Eranian fprintf(output, " (%d runs)", run_count); 9914aa9015fSStephane Eranian fprintf(output, ":\n\n"); 992d7470b6aSStephane Eranian } 99386470930SIngo Molnar 99486ee6e18SStephane Eranian switch (aggr_mode) { 99512c08a9fSStephane Eranian case AGGR_CORE: 99686ee6e18SStephane Eranian case AGGR_SOCKET: 99786ee6e18SStephane Eranian print_aggr(NULL); 99886ee6e18SStephane Eranian break; 99986ee6e18SStephane Eranian case AGGR_GLOBAL: 10000050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 100113370a9bSStephane Eranian print_counter_aggr(counter, NULL); 100286ee6e18SStephane Eranian break; 100386ee6e18SStephane Eranian case AGGR_NONE: 10040050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 100586ee6e18SStephane Eranian print_counter(counter, NULL); 100686ee6e18SStephane Eranian break; 100786ee6e18SStephane Eranian default: 100886ee6e18SStephane Eranian break; 1009f5b4a9c3SStephane Eranian } 101086470930SIngo Molnar 1011d7470b6aSStephane Eranian if (!csv_output) { 1012c3305257SIngo Molnar if (!null_run) 10134aa9015fSStephane Eranian fprintf(output, "\n"); 10144aa9015fSStephane Eranian fprintf(output, " %17.9f seconds time elapsed", 1015506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)/1e9); 1016566747e6SIngo Molnar if (run_count > 1) { 10174aa9015fSStephane Eranian fprintf(output, " "); 1018f99844cbSIngo Molnar print_noise_pct(stddev_stats(&walltime_nsecs_stats), 1019506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)); 1020566747e6SIngo Molnar } 10214aa9015fSStephane Eranian fprintf(output, "\n\n"); 102286470930SIngo Molnar } 1023d7470b6aSStephane Eranian } 102486470930SIngo Molnar 1025f7b7c26eSPeter Zijlstra static volatile int signr = -1; 1026f7b7c26eSPeter Zijlstra 102786470930SIngo Molnar static void skip_signal(int signo) 102886470930SIngo Molnar { 102913370a9bSStephane Eranian if ((child_pid == -1) || interval) 103060666c63SLiming Wang done = 1; 103160666c63SLiming Wang 1032f7b7c26eSPeter Zijlstra signr = signo; 1033d07f0b12SStephane Eranian /* 1034d07f0b12SStephane Eranian * render child_pid harmless 1035d07f0b12SStephane Eranian * won't send SIGTERM to a random 1036d07f0b12SStephane Eranian * process in case of race condition 1037d07f0b12SStephane Eranian * and fast PID recycling 1038d07f0b12SStephane Eranian */ 1039d07f0b12SStephane Eranian child_pid = -1; 1040f7b7c26eSPeter Zijlstra } 1041f7b7c26eSPeter Zijlstra 1042f7b7c26eSPeter Zijlstra static void sig_atexit(void) 1043f7b7c26eSPeter Zijlstra { 1044d07f0b12SStephane Eranian sigset_t set, oset; 1045d07f0b12SStephane Eranian 1046d07f0b12SStephane Eranian /* 1047d07f0b12SStephane Eranian * avoid race condition with SIGCHLD handler 1048d07f0b12SStephane Eranian * in skip_signal() which is modifying child_pid 1049d07f0b12SStephane Eranian * goal is to avoid send SIGTERM to a random 1050d07f0b12SStephane Eranian * process 1051d07f0b12SStephane Eranian */ 1052d07f0b12SStephane Eranian sigemptyset(&set); 1053d07f0b12SStephane Eranian sigaddset(&set, SIGCHLD); 1054d07f0b12SStephane Eranian sigprocmask(SIG_BLOCK, &set, &oset); 1055d07f0b12SStephane Eranian 1056933da83aSChris Wilson if (child_pid != -1) 1057933da83aSChris Wilson kill(child_pid, SIGTERM); 1058933da83aSChris Wilson 1059d07f0b12SStephane Eranian sigprocmask(SIG_SETMASK, &oset, NULL); 1060d07f0b12SStephane Eranian 1061f7b7c26eSPeter Zijlstra if (signr == -1) 1062f7b7c26eSPeter Zijlstra return; 1063f7b7c26eSPeter Zijlstra 1064f7b7c26eSPeter Zijlstra signal(signr, SIG_DFL); 1065f7b7c26eSPeter Zijlstra kill(getpid(), signr); 106686470930SIngo Molnar } 106786470930SIngo Molnar 10681d037ca1SIrina Tirdea static int stat__set_big_num(const struct option *opt __maybe_unused, 10691d037ca1SIrina Tirdea const char *s __maybe_unused, int unset) 1070d7470b6aSStephane Eranian { 1071d7470b6aSStephane Eranian big_num_opt = unset ? 0 : 1; 1072d7470b6aSStephane Eranian return 0; 1073d7470b6aSStephane Eranian } 1074d7470b6aSStephane Eranian 107586ee6e18SStephane Eranian static int perf_stat_init_aggr_mode(void) 107686ee6e18SStephane Eranian { 107786ee6e18SStephane Eranian switch (aggr_mode) { 107886ee6e18SStephane Eranian case AGGR_SOCKET: 107986ee6e18SStephane Eranian if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { 108086ee6e18SStephane Eranian perror("cannot build socket map"); 108186ee6e18SStephane Eranian return -1; 108286ee6e18SStephane Eranian } 108386ee6e18SStephane Eranian aggr_get_id = cpu_map__get_socket; 108486ee6e18SStephane Eranian break; 108512c08a9fSStephane Eranian case AGGR_CORE: 108612c08a9fSStephane Eranian if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { 108712c08a9fSStephane Eranian perror("cannot build core map"); 108812c08a9fSStephane Eranian return -1; 108912c08a9fSStephane Eranian } 109012c08a9fSStephane Eranian aggr_get_id = cpu_map__get_core; 109112c08a9fSStephane Eranian break; 109286ee6e18SStephane Eranian case AGGR_NONE: 109386ee6e18SStephane Eranian case AGGR_GLOBAL: 109486ee6e18SStephane Eranian default: 109586ee6e18SStephane Eranian break; 109686ee6e18SStephane Eranian } 109786ee6e18SStephane Eranian return 0; 109886ee6e18SStephane Eranian } 109986ee6e18SStephane Eranian 11002cba3ffbSIngo Molnar /* 11012cba3ffbSIngo Molnar * Add default attributes, if there were no attributes specified or 11022cba3ffbSIngo Molnar * if -d/--detailed, -d -d or -d -d -d is used: 11032cba3ffbSIngo Molnar */ 11042cba3ffbSIngo Molnar static int add_default_attributes(void) 11052cba3ffbSIngo Molnar { 1106b070a547SArnaldo Carvalho de Melo struct perf_event_attr default_attrs[] = { 1107b070a547SArnaldo Carvalho de Melo 1108b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, 1109b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, 1110b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, 1111b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, 1112b070a547SArnaldo Carvalho de Melo 1113b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, 1114b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, 1115b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, 1116b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, 1117b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, 1118b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, 1119b070a547SArnaldo Carvalho de Melo 1120b070a547SArnaldo Carvalho de Melo }; 1121b070a547SArnaldo Carvalho de Melo 1122b070a547SArnaldo Carvalho de Melo /* 1123b070a547SArnaldo Carvalho de Melo * Detailed stats (-d), covering the L1 and last level data caches: 1124b070a547SArnaldo Carvalho de Melo */ 1125b070a547SArnaldo Carvalho de Melo struct perf_event_attr detailed_attrs[] = { 1126b070a547SArnaldo Carvalho de Melo 1127b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1128b070a547SArnaldo Carvalho de Melo .config = 1129b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1130b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1131b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1132b070a547SArnaldo Carvalho de Melo 1133b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1134b070a547SArnaldo Carvalho de Melo .config = 1135b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1136b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1137b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1138b070a547SArnaldo Carvalho de Melo 1139b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1140b070a547SArnaldo Carvalho de Melo .config = 1141b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1142b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1143b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1144b070a547SArnaldo Carvalho de Melo 1145b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1146b070a547SArnaldo Carvalho de Melo .config = 1147b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1148b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1149b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1150b070a547SArnaldo Carvalho de Melo }; 1151b070a547SArnaldo Carvalho de Melo 1152b070a547SArnaldo Carvalho de Melo /* 1153b070a547SArnaldo Carvalho de Melo * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: 1154b070a547SArnaldo Carvalho de Melo */ 1155b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_detailed_attrs[] = { 1156b070a547SArnaldo Carvalho de Melo 1157b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1158b070a547SArnaldo Carvalho de Melo .config = 1159b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1160b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1161b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1162b070a547SArnaldo Carvalho de Melo 1163b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1164b070a547SArnaldo Carvalho de Melo .config = 1165b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1166b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1167b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1168b070a547SArnaldo Carvalho de Melo 1169b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1170b070a547SArnaldo Carvalho de Melo .config = 1171b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1172b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1173b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1174b070a547SArnaldo Carvalho de Melo 1175b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1176b070a547SArnaldo Carvalho de Melo .config = 1177b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1178b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1179b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1180b070a547SArnaldo Carvalho de Melo 1181b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1182b070a547SArnaldo Carvalho de Melo .config = 1183b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1184b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1185b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1186b070a547SArnaldo Carvalho de Melo 1187b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1188b070a547SArnaldo Carvalho de Melo .config = 1189b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1190b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1191b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1192b070a547SArnaldo Carvalho de Melo 1193b070a547SArnaldo Carvalho de Melo }; 1194b070a547SArnaldo Carvalho de Melo 1195b070a547SArnaldo Carvalho de Melo /* 1196b070a547SArnaldo Carvalho de Melo * Very, very detailed stats (-d -d -d), adding prefetch events: 1197b070a547SArnaldo Carvalho de Melo */ 1198b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_very_detailed_attrs[] = { 1199b070a547SArnaldo Carvalho de Melo 1200b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1201b070a547SArnaldo Carvalho de Melo .config = 1202b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1203b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1204b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 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_L1D << 0 | 1209b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1210b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1211b070a547SArnaldo Carvalho de Melo }; 1212b070a547SArnaldo Carvalho de Melo 12132cba3ffbSIngo Molnar /* Set attrs if no event is selected and !null_run: */ 12142cba3ffbSIngo Molnar if (null_run) 12152cba3ffbSIngo Molnar return 0; 12162cba3ffbSIngo Molnar 12174cabc3d1SAndi Kleen if (transaction_run) { 12184cabc3d1SAndi Kleen int err; 12194cabc3d1SAndi Kleen if (pmu_have_event("cpu", "cycles-ct") && 12204cabc3d1SAndi Kleen pmu_have_event("cpu", "el-start")) 1221a454742cSJiri Olsa err = parse_events(evsel_list, transaction_attrs, NULL); 12224cabc3d1SAndi Kleen else 1223a454742cSJiri Olsa err = parse_events(evsel_list, transaction_limited_attrs, NULL); 1224a454742cSJiri Olsa if (err) { 12254cabc3d1SAndi Kleen fprintf(stderr, "Cannot set up transaction events\n"); 12264cabc3d1SAndi Kleen return -1; 12274cabc3d1SAndi Kleen } 12284cabc3d1SAndi Kleen return 0; 12294cabc3d1SAndi Kleen } 12304cabc3d1SAndi Kleen 12312cba3ffbSIngo Molnar if (!evsel_list->nr_entries) { 123279695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) 12332cba3ffbSIngo Molnar return -1; 12342cba3ffbSIngo Molnar } 12352cba3ffbSIngo Molnar 12362cba3ffbSIngo Molnar /* Detailed events get appended to the event list: */ 12372cba3ffbSIngo Molnar 12382cba3ffbSIngo Molnar if (detailed_run < 1) 12392cba3ffbSIngo Molnar return 0; 12402cba3ffbSIngo Molnar 12412cba3ffbSIngo Molnar /* Append detailed run extra attributes: */ 124279695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) 12432cba3ffbSIngo Molnar return -1; 12442cba3ffbSIngo Molnar 12452cba3ffbSIngo Molnar if (detailed_run < 2) 12462cba3ffbSIngo Molnar return 0; 12472cba3ffbSIngo Molnar 12482cba3ffbSIngo Molnar /* Append very detailed run extra attributes: */ 124979695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) 12502cba3ffbSIngo Molnar return -1; 12512cba3ffbSIngo Molnar 12522cba3ffbSIngo Molnar if (detailed_run < 3) 12532cba3ffbSIngo Molnar return 0; 12542cba3ffbSIngo Molnar 12552cba3ffbSIngo Molnar /* Append very, very detailed run extra attributes: */ 125679695e1bSArnaldo Carvalho de Melo return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); 12572cba3ffbSIngo Molnar } 12582cba3ffbSIngo Molnar 12591d037ca1SIrina Tirdea int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) 126086470930SIngo Molnar { 12611f16c575SPeter Zijlstra bool append_file = false; 1262b070a547SArnaldo Carvalho de Melo int output_fd = 0; 1263b070a547SArnaldo Carvalho de Melo const char *output_name = NULL; 1264b070a547SArnaldo Carvalho de Melo const struct option options[] = { 12654cabc3d1SAndi Kleen OPT_BOOLEAN('T', "transaction", &transaction_run, 12664cabc3d1SAndi Kleen "hardware transaction statistics"), 1267b070a547SArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &evsel_list, "event", 1268b070a547SArnaldo Carvalho de Melo "event selector. use 'perf list' to list available events", 1269b070a547SArnaldo Carvalho de Melo parse_events_option), 1270b070a547SArnaldo Carvalho de Melo OPT_CALLBACK(0, "filter", &evsel_list, "filter", 1271b070a547SArnaldo Carvalho de Melo "event filter", parse_filter), 1272b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &no_inherit, 1273b070a547SArnaldo Carvalho de Melo "child tasks do not inherit counters"), 1274b070a547SArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target.pid, "pid", 1275b070a547SArnaldo Carvalho de Melo "stat events on existing process id"), 1276b070a547SArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target.tid, "tid", 1277b070a547SArnaldo Carvalho de Melo "stat events on existing thread id"), 1278b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target.system_wide, 1279b070a547SArnaldo Carvalho de Melo "system-wide collection from all CPUs"), 1280b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &group, 1281b070a547SArnaldo Carvalho de Melo "put the counters into a counter group"), 1282b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"), 1283b070a547SArnaldo Carvalho de Melo OPT_INCR('v', "verbose", &verbose, 1284b070a547SArnaldo Carvalho de Melo "be more verbose (show counter open errors, etc)"), 1285b070a547SArnaldo Carvalho de Melo OPT_INTEGER('r', "repeat", &run_count, 1286a7e191c3SFrederik Deweerdt "repeat command and print average + stddev (max: 100, forever: 0)"), 1287b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('n', "null", &null_run, 1288b070a547SArnaldo Carvalho de Melo "null run - dont start any counters"), 1289b070a547SArnaldo Carvalho de Melo OPT_INCR('d', "detailed", &detailed_run, 1290b070a547SArnaldo Carvalho de Melo "detailed run - start a lot of events"), 1291b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('S', "sync", &sync_run, 1292b070a547SArnaldo Carvalho de Melo "call sync() before starting a run"), 1293b070a547SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 1294b070a547SArnaldo Carvalho de Melo "print large numbers with thousands\' separators", 1295b070a547SArnaldo Carvalho de Melo stat__set_big_num), 1296b070a547SArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target.cpu_list, "cpu", 1297b070a547SArnaldo Carvalho de Melo "list of cpus to monitor in system-wide"), 129886ee6e18SStephane Eranian OPT_SET_UINT('A', "no-aggr", &aggr_mode, 129986ee6e18SStephane Eranian "disable CPU count aggregation", AGGR_NONE), 1300b070a547SArnaldo Carvalho de Melo OPT_STRING('x', "field-separator", &csv_sep, "separator", 1301b070a547SArnaldo Carvalho de Melo "print counts with custom separator"), 1302b070a547SArnaldo Carvalho de Melo OPT_CALLBACK('G', "cgroup", &evsel_list, "name", 1303b070a547SArnaldo Carvalho de Melo "monitor event in cgroup name only", parse_cgroups), 1304b070a547SArnaldo Carvalho de Melo OPT_STRING('o', "output", &output_name, "file", "output file name"), 1305b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), 1306b070a547SArnaldo Carvalho de Melo OPT_INTEGER(0, "log-fd", &output_fd, 1307b070a547SArnaldo Carvalho de Melo "log output to fd, instead of stderr"), 13081f16c575SPeter Zijlstra OPT_STRING(0, "pre", &pre_cmd, "command", 13091f16c575SPeter Zijlstra "command to run prior to the measured command"), 13101f16c575SPeter Zijlstra OPT_STRING(0, "post", &post_cmd, "command", 13111f16c575SPeter Zijlstra "command to run after to the measured command"), 131213370a9bSStephane Eranian OPT_UINTEGER('I', "interval-print", &interval, 131313370a9bSStephane Eranian "print counts at regular interval in ms (>= 100)"), 1314d4304958SStephane Eranian OPT_SET_UINT(0, "per-socket", &aggr_mode, 131586ee6e18SStephane Eranian "aggregate counts per processor socket", AGGR_SOCKET), 131612c08a9fSStephane Eranian OPT_SET_UINT(0, "per-core", &aggr_mode, 131712c08a9fSStephane Eranian "aggregate counts per physical processor core", AGGR_CORE), 131841191688SAndi Kleen OPT_UINTEGER('D', "delay", &initial_delay, 131941191688SAndi Kleen "ms to wait before starting measurement after program start"), 1320b070a547SArnaldo Carvalho de Melo OPT_END() 1321b070a547SArnaldo Carvalho de Melo }; 1322b070a547SArnaldo Carvalho de Melo const char * const stat_usage[] = { 1323b070a547SArnaldo Carvalho de Melo "perf stat [<options>] [<command>]", 1324b070a547SArnaldo Carvalho de Melo NULL 1325b070a547SArnaldo Carvalho de Melo }; 1326cc03c542SNamhyung Kim int status = -EINVAL, run_idx; 13274aa9015fSStephane Eranian const char *mode; 132842202dd5SIngo Molnar 13295af52b51SStephane Eranian setlocale(LC_ALL, ""); 13305af52b51SStephane Eranian 1331334fe7a3SNamhyung Kim evsel_list = perf_evlist__new(); 1332361c99a6SArnaldo Carvalho de Melo if (evsel_list == NULL) 1333361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1334361c99a6SArnaldo Carvalho de Melo 1335a0541234SAnton Blanchard argc = parse_options(argc, argv, options, stat_usage, 1336a0541234SAnton Blanchard PARSE_OPT_STOP_AT_NON_OPTION); 1337d7470b6aSStephane Eranian 13384aa9015fSStephane Eranian output = stderr; 13394aa9015fSStephane Eranian if (output_name && strcmp(output_name, "-")) 13404aa9015fSStephane Eranian output = NULL; 13414aa9015fSStephane Eranian 134256f3bae7SJim Cromie if (output_name && output_fd) { 134356f3bae7SJim Cromie fprintf(stderr, "cannot use both --output and --log-fd\n"); 1344cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "o", 1); 1345cc03c542SNamhyung Kim parse_options_usage(NULL, options, "log-fd", 0); 1346cc03c542SNamhyung Kim goto out; 134756f3bae7SJim Cromie } 1348fc3e4d07SStephane Eranian 1349fc3e4d07SStephane Eranian if (output_fd < 0) { 1350fc3e4d07SStephane Eranian fprintf(stderr, "argument to --log-fd must be a > 0\n"); 1351cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "log-fd", 0); 1352cc03c542SNamhyung Kim goto out; 1353fc3e4d07SStephane Eranian } 1354fc3e4d07SStephane Eranian 13554aa9015fSStephane Eranian if (!output) { 13564aa9015fSStephane Eranian struct timespec tm; 13574aa9015fSStephane Eranian mode = append_file ? "a" : "w"; 13584aa9015fSStephane Eranian 13594aa9015fSStephane Eranian output = fopen(output_name, mode); 13604aa9015fSStephane Eranian if (!output) { 13614aa9015fSStephane Eranian perror("failed to create output file"); 1362fceda7feSDavid Ahern return -1; 13634aa9015fSStephane Eranian } 13644aa9015fSStephane Eranian clock_gettime(CLOCK_REALTIME, &tm); 13654aa9015fSStephane Eranian fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); 1366fc3e4d07SStephane Eranian } else if (output_fd > 0) { 136756f3bae7SJim Cromie mode = append_file ? "a" : "w"; 136856f3bae7SJim Cromie output = fdopen(output_fd, mode); 136956f3bae7SJim Cromie if (!output) { 137056f3bae7SJim Cromie perror("Failed opening logfd"); 137156f3bae7SJim Cromie return -errno; 137256f3bae7SJim Cromie } 13734aa9015fSStephane Eranian } 13744aa9015fSStephane Eranian 1375d4ffd04dSJim Cromie if (csv_sep) { 1376d7470b6aSStephane Eranian csv_output = true; 1377d4ffd04dSJim Cromie if (!strcmp(csv_sep, "\\t")) 1378d4ffd04dSJim Cromie csv_sep = "\t"; 1379d4ffd04dSJim Cromie } else 1380d7470b6aSStephane Eranian csv_sep = DEFAULT_SEPARATOR; 1381d7470b6aSStephane Eranian 1382d7470b6aSStephane Eranian /* 1383d7470b6aSStephane Eranian * let the spreadsheet do the pretty-printing 1384d7470b6aSStephane Eranian */ 1385d7470b6aSStephane Eranian if (csv_output) { 138661a9f324SJim Cromie /* User explicitly passed -B? */ 1387d7470b6aSStephane Eranian if (big_num_opt == 1) { 1388d7470b6aSStephane Eranian fprintf(stderr, "-B option not supported with -x\n"); 1389cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "B", 1); 1390cc03c542SNamhyung Kim parse_options_usage(NULL, options, "x", 1); 1391cc03c542SNamhyung Kim goto out; 1392d7470b6aSStephane Eranian } else /* Nope, so disable big number formatting */ 1393d7470b6aSStephane Eranian big_num = false; 1394d7470b6aSStephane Eranian } else if (big_num_opt == 0) /* User passed --no-big-num */ 1395d7470b6aSStephane Eranian big_num = false; 1396d7470b6aSStephane Eranian 1397602ad878SArnaldo Carvalho de Melo if (!argc && target__none(&target)) 139886470930SIngo Molnar usage_with_options(stat_usage, options); 1399ac3063bdSDavid Ahern 1400a7e191c3SFrederik Deweerdt if (run_count < 0) { 1401cc03c542SNamhyung Kim pr_err("Run count must be a positive number\n"); 1402cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "r", 1); 1403cc03c542SNamhyung Kim goto out; 1404a7e191c3SFrederik Deweerdt } else if (run_count == 0) { 1405a7e191c3SFrederik Deweerdt forever = true; 1406a7e191c3SFrederik Deweerdt run_count = 1; 1407a7e191c3SFrederik Deweerdt } 140886470930SIngo Molnar 1409023695d9SStephane Eranian /* no_aggr, cgroup are for system-wide only */ 1410602ad878SArnaldo Carvalho de Melo if ((aggr_mode != AGGR_GLOBAL || nr_cgroups) && 1411602ad878SArnaldo Carvalho de Melo !target__has_cpu(&target)) { 1412023695d9SStephane Eranian fprintf(stderr, "both cgroup and no-aggregation " 1413023695d9SStephane Eranian "modes only available in system-wide mode\n"); 1414023695d9SStephane Eranian 1415cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "G", 1); 1416cc03c542SNamhyung Kim parse_options_usage(NULL, options, "A", 1); 1417cc03c542SNamhyung Kim parse_options_usage(NULL, options, "a", 1); 1418cc03c542SNamhyung Kim goto out; 1419d7e7a451SStephane Eranian } 1420d7e7a451SStephane Eranian 14212cba3ffbSIngo Molnar if (add_default_attributes()) 1422c6264defSIngo Molnar goto out; 142386470930SIngo Molnar 1424602ad878SArnaldo Carvalho de Melo target__validate(&target); 14255c98d466SArnaldo Carvalho de Melo 142677a6f014SNamhyung Kim if (perf_evlist__create_maps(evsel_list, &target) < 0) { 1427602ad878SArnaldo Carvalho de Melo if (target__has_task(&target)) { 14285c98d466SArnaldo Carvalho de Melo pr_err("Problems finding threads of monitor\n"); 1429cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "p", 1); 1430cc03c542SNamhyung Kim parse_options_usage(NULL, options, "t", 1); 1431602ad878SArnaldo Carvalho de Melo } else if (target__has_cpu(&target)) { 143260d567e2SArnaldo Carvalho de Melo perror("failed to parse CPUs map"); 1433cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "C", 1); 1434cc03c542SNamhyung Kim parse_options_usage(NULL, options, "a", 1); 1435cc03c542SNamhyung Kim } 1436cc03c542SNamhyung Kim goto out; 143760d567e2SArnaldo Carvalho de Melo } 143813370a9bSStephane Eranian if (interval && interval < 100) { 143913370a9bSStephane Eranian pr_err("print interval must be >= 100ms\n"); 1440cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "I", 1); 144103ad9747SArnaldo Carvalho de Melo goto out; 144213370a9bSStephane Eranian } 1443c45c6ea2SStephane Eranian 1444d134ffb9SArnaldo Carvalho de Melo if (perf_evlist__alloc_stats(evsel_list, interval)) 144503ad9747SArnaldo Carvalho de Melo goto out; 1446d6d901c2SZhang, Yanmin 144786ee6e18SStephane Eranian if (perf_stat_init_aggr_mode()) 144803ad9747SArnaldo Carvalho de Melo goto out; 144986ee6e18SStephane Eranian 145086470930SIngo Molnar /* 145186470930SIngo Molnar * We dont want to block the signals - that would cause 145286470930SIngo Molnar * child tasks to inherit that and Ctrl-C would not work. 145386470930SIngo Molnar * What we want is for Ctrl-C to work in the exec()-ed 145486470930SIngo Molnar * task, but being ignored by perf stat itself: 145586470930SIngo Molnar */ 1456f7b7c26eSPeter Zijlstra atexit(sig_atexit); 1457a7e191c3SFrederik Deweerdt if (!forever) 145886470930SIngo Molnar signal(SIGINT, skip_signal); 145913370a9bSStephane Eranian signal(SIGCHLD, skip_signal); 146086470930SIngo Molnar signal(SIGALRM, skip_signal); 146186470930SIngo Molnar signal(SIGABRT, skip_signal); 146286470930SIngo Molnar 146342202dd5SIngo Molnar status = 0; 1464a7e191c3SFrederik Deweerdt for (run_idx = 0; forever || run_idx < run_count; run_idx++) { 146542202dd5SIngo Molnar if (run_count != 1 && verbose) 14664aa9015fSStephane Eranian fprintf(output, "[ perf stat: executing run #%d ... ]\n", 14674aa9015fSStephane Eranian run_idx + 1); 1468f9cef0a9SIngo Molnar 146942202dd5SIngo Molnar status = run_perf_stat(argc, argv); 1470a7e191c3SFrederik Deweerdt if (forever && status != -1) { 1471a7e191c3SFrederik Deweerdt print_stat(argc, argv); 1472d134ffb9SArnaldo Carvalho de Melo perf_stat__reset_stats(evsel_list); 1473a7e191c3SFrederik Deweerdt } 147442202dd5SIngo Molnar } 147542202dd5SIngo Molnar 1476a7e191c3SFrederik Deweerdt if (!forever && status != -1 && !interval) 147742202dd5SIngo Molnar print_stat(argc, argv); 1478d134ffb9SArnaldo Carvalho de Melo 1479d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evsel_list); 14800015e2e1SArnaldo Carvalho de Melo out: 14810015e2e1SArnaldo Carvalho de Melo perf_evlist__delete(evsel_list); 148242202dd5SIngo Molnar return status; 148386470930SIngo Molnar } 1484