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 169a6fa0038SJiri Olsa static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel, 170a6fa0038SJiri Olsa int ncpus, int nthreads) 1717ae92e74SYan, Zheng { 1729df38e82SJiri Olsa struct perf_counts *counts; 17313370a9bSStephane Eranian 174a6fa0038SJiri Olsa counts = perf_counts__new(ncpus, nthreads); 1759df38e82SJiri Olsa if (counts) 1769df38e82SJiri Olsa evsel->prev_raw_counts = counts; 17713370a9bSStephane Eranian 1789df38e82SJiri Olsa return counts ? 0 : -ENOMEM; 1797ae92e74SYan, Zheng } 1807ae92e74SYan, Zheng 18113370a9bSStephane Eranian static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel) 1827ae92e74SYan, Zheng { 1839df38e82SJiri Olsa perf_counts__delete(evsel->prev_raw_counts); 1849df38e82SJiri Olsa evsel->prev_raw_counts = NULL; 1857ae92e74SYan, Zheng } 1867ae92e74SYan, Zheng 187d134ffb9SArnaldo Carvalho de Melo static void perf_evlist__free_stats(struct perf_evlist *evlist) 188d134ffb9SArnaldo Carvalho de Melo { 189d134ffb9SArnaldo Carvalho de Melo struct perf_evsel *evsel; 190d134ffb9SArnaldo Carvalho de Melo 1910050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, evsel) { 192d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_stat_priv(evsel); 193d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_counts(evsel); 194d134ffb9SArnaldo Carvalho de Melo perf_evsel__free_prev_raw_counts(evsel); 195d134ffb9SArnaldo Carvalho de Melo } 196d134ffb9SArnaldo Carvalho de Melo } 197d134ffb9SArnaldo Carvalho de Melo 198d134ffb9SArnaldo Carvalho de Melo static int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw) 199d134ffb9SArnaldo Carvalho de Melo { 200d134ffb9SArnaldo Carvalho de Melo struct perf_evsel *evsel; 201a6fa0038SJiri Olsa int nthreads = thread_map__nr(evsel_list->threads); 202d134ffb9SArnaldo Carvalho de Melo 2030050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, evsel) { 204a6fa0038SJiri Olsa int ncpus = perf_evsel__nr_cpus(evsel); 205a6fa0038SJiri Olsa 206d134ffb9SArnaldo Carvalho de Melo if (perf_evsel__alloc_stat_priv(evsel) < 0 || 207a6fa0038SJiri Olsa perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 || 208a6fa0038SJiri Olsa (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0)) 209d134ffb9SArnaldo Carvalho de Melo goto out_free; 210d134ffb9SArnaldo Carvalho de Melo } 211d134ffb9SArnaldo Carvalho de Melo 212d134ffb9SArnaldo Carvalho de Melo return 0; 213d134ffb9SArnaldo Carvalho de Melo 214d134ffb9SArnaldo Carvalho de Melo out_free: 215d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evlist); 216d134ffb9SArnaldo Carvalho de Melo return -1; 217d134ffb9SArnaldo Carvalho de Melo } 218d134ffb9SArnaldo Carvalho de Melo 2191eda3b21SJiri Olsa static void perf_stat__reset_stats(struct perf_evlist *evlist) 2201eda3b21SJiri Olsa { 2211eda3b21SJiri Olsa struct perf_evsel *evsel; 2221eda3b21SJiri Olsa 2231eda3b21SJiri Olsa evlist__for_each(evlist, evsel) { 2241eda3b21SJiri Olsa perf_evsel__reset_stat_priv(evsel); 225a8e02324SJiri Olsa perf_evsel__reset_counts(evsel); 2261eda3b21SJiri Olsa } 2271eda3b21SJiri Olsa 228f87027b9SJiri Olsa perf_stat__reset_shadow_stats(); 2291eda3b21SJiri Olsa } 2301eda3b21SJiri Olsa 231cac21425SJiri Olsa static int create_perf_stat_counter(struct perf_evsel *evsel) 23286470930SIngo Molnar { 23369aad6f1SArnaldo Carvalho de Melo struct perf_event_attr *attr = &evsel->attr; 234727ab04eSArnaldo Carvalho de Melo 23586470930SIngo Molnar if (scale) 23686470930SIngo Molnar attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | 23786470930SIngo Molnar PERF_FORMAT_TOTAL_TIME_RUNNING; 23886470930SIngo Molnar 2392e6cdf99SStephane Eranian attr->inherit = !no_inherit; 2405d2cd909SArnaldo Carvalho de Melo 241602ad878SArnaldo Carvalho de Melo if (target__has_cpu(&target)) 242594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); 2435622c07bSStephane Eranian 244602ad878SArnaldo Carvalho de Melo if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) { 24586470930SIngo Molnar attr->disabled = 1; 24641191688SAndi Kleen if (!initial_delay) 24757e7986eSPaul Mackerras attr->enable_on_exec = 1; 2486be2850eSZhang, Yanmin } 249084ab9f8SArnaldo Carvalho de Melo 250594ac61aSArnaldo Carvalho de Melo return perf_evsel__open_per_thread(evsel, evsel_list->threads); 25186470930SIngo Molnar } 25286470930SIngo Molnar 25386470930SIngo Molnar /* 25486470930SIngo Molnar * Does the counter have nsecs as a unit? 25586470930SIngo Molnar */ 256daec78a0SArnaldo Carvalho de Melo static inline int nsec_counter(struct perf_evsel *evsel) 25786470930SIngo Molnar { 258daec78a0SArnaldo Carvalho de Melo if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || 259daec78a0SArnaldo Carvalho de Melo perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) 26086470930SIngo Molnar return 1; 26186470930SIngo Molnar 26286470930SIngo Molnar return 0; 26386470930SIngo Molnar } 26486470930SIngo Molnar 265779d0b99SJiri Olsa static void zero_per_pkg(struct perf_evsel *counter) 266779d0b99SJiri Olsa { 267779d0b99SJiri Olsa if (counter->per_pkg_mask) 268779d0b99SJiri Olsa memset(counter->per_pkg_mask, 0, MAX_NR_CPUS); 269779d0b99SJiri Olsa } 270779d0b99SJiri Olsa 271779d0b99SJiri Olsa static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip) 272779d0b99SJiri Olsa { 273779d0b99SJiri Olsa unsigned long *mask = counter->per_pkg_mask; 274779d0b99SJiri Olsa struct cpu_map *cpus = perf_evsel__cpus(counter); 275779d0b99SJiri Olsa int s; 276779d0b99SJiri Olsa 277779d0b99SJiri Olsa *skip = false; 278779d0b99SJiri Olsa 279779d0b99SJiri Olsa if (!counter->per_pkg) 280779d0b99SJiri Olsa return 0; 281779d0b99SJiri Olsa 282779d0b99SJiri Olsa if (cpu_map__empty(cpus)) 283779d0b99SJiri Olsa return 0; 284779d0b99SJiri Olsa 285779d0b99SJiri Olsa if (!mask) { 286779d0b99SJiri Olsa mask = zalloc(MAX_NR_CPUS); 287779d0b99SJiri Olsa if (!mask) 288779d0b99SJiri Olsa return -ENOMEM; 289779d0b99SJiri Olsa 290779d0b99SJiri Olsa counter->per_pkg_mask = mask; 291779d0b99SJiri Olsa } 292779d0b99SJiri Olsa 293779d0b99SJiri Olsa s = cpu_map__get_socket(cpus, cpu); 294779d0b99SJiri Olsa if (s < 0) 295779d0b99SJiri Olsa return -1; 296779d0b99SJiri Olsa 297779d0b99SJiri Olsa *skip = test_and_set_bit(s, mask) == 1; 298779d0b99SJiri Olsa return 0; 299779d0b99SJiri Olsa } 300779d0b99SJiri Olsa 301a6fa0038SJiri Olsa static int read_cb(struct perf_evsel *evsel, int cpu, int thread, 302060c4f9cSJiri Olsa struct perf_counts_values *count) 303060c4f9cSJiri Olsa { 3041971f59fSJiri Olsa struct perf_counts_values *aggr = &evsel->counts->aggr; 305779d0b99SJiri Olsa static struct perf_counts_values zero; 306779d0b99SJiri Olsa bool skip = false; 307779d0b99SJiri Olsa 308779d0b99SJiri Olsa if (check_per_pkg(evsel, cpu, &skip)) { 309779d0b99SJiri Olsa pr_err("failed to read per-pkg counter\n"); 310779d0b99SJiri Olsa return -1; 311779d0b99SJiri Olsa } 312779d0b99SJiri Olsa 313779d0b99SJiri Olsa if (skip) 314779d0b99SJiri Olsa count = &zero; 3151971f59fSJiri Olsa 316060c4f9cSJiri Olsa switch (aggr_mode) { 317060c4f9cSJiri Olsa case AGGR_CORE: 318060c4f9cSJiri Olsa case AGGR_SOCKET: 319060c4f9cSJiri Olsa case AGGR_NONE: 3206c0345b7SJiri Olsa if (!evsel->snapshot) 321a6fa0038SJiri Olsa perf_evsel__compute_deltas(evsel, cpu, thread, count); 322060c4f9cSJiri Olsa perf_counts_values__scale(count, scale, NULL); 323a6fa0038SJiri Olsa *perf_counts(evsel->counts, cpu, thread) = *count; 32456f0fd45SAndi Kleen if (aggr_mode == AGGR_NONE) 325f87027b9SJiri Olsa perf_stat__update_shadow_stats(evsel, count->values, cpu); 326060c4f9cSJiri Olsa break; 327060c4f9cSJiri Olsa case AGGR_GLOBAL: 3281971f59fSJiri Olsa aggr->val += count->val; 3291971f59fSJiri Olsa if (scale) { 3301971f59fSJiri Olsa aggr->ena += count->ena; 3311971f59fSJiri Olsa aggr->run += count->run; 3321971f59fSJiri Olsa } 333060c4f9cSJiri Olsa default: 334060c4f9cSJiri Olsa break; 335060c4f9cSJiri Olsa } 336060c4f9cSJiri Olsa 337060c4f9cSJiri Olsa return 0; 338060c4f9cSJiri Olsa } 339060c4f9cSJiri Olsa 3401971f59fSJiri Olsa static int read_counter(struct perf_evsel *counter); 3411971f59fSJiri Olsa 342dcd9936aSIngo Molnar /* 34386470930SIngo Molnar * Read out the results of a single counter: 344f5b4a9c3SStephane Eranian * aggregate counts across CPUs in system-wide mode 34586470930SIngo Molnar */ 346c52b12edSArnaldo Carvalho de Melo static int read_counter_aggr(struct perf_evsel *counter) 34786470930SIngo Molnar { 3481971f59fSJiri Olsa struct perf_counts_values *aggr = &counter->counts->aggr; 34969aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps = counter->priv; 350c52b12edSArnaldo Carvalho de Melo u64 *count = counter->counts->aggr.values; 351c52b12edSArnaldo Carvalho de Melo int i; 35286470930SIngo Molnar 3531971f59fSJiri Olsa aggr->val = aggr->ena = aggr->run = 0; 3541971f59fSJiri Olsa 3551971f59fSJiri Olsa if (read_counter(counter)) 356c52b12edSArnaldo Carvalho de Melo return -1; 3579e9772c4SPeter Zijlstra 3586c0345b7SJiri Olsa if (!counter->snapshot) 359a6fa0038SJiri Olsa perf_evsel__compute_deltas(counter, -1, -1, aggr); 3601971f59fSJiri Olsa perf_counts_values__scale(aggr, scale, &counter->counts->scaled); 3611971f59fSJiri Olsa 3629e9772c4SPeter Zijlstra for (i = 0; i < 3; i++) 36369aad6f1SArnaldo Carvalho de Melo update_stats(&ps->res_stats[i], count[i]); 3649e9772c4SPeter Zijlstra 3659e9772c4SPeter Zijlstra if (verbose) { 3664aa9015fSStephane Eranian fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", 3677289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter), count[0], count[1], count[2]); 3689e9772c4SPeter Zijlstra } 3699e9772c4SPeter Zijlstra 37086470930SIngo Molnar /* 37186470930SIngo Molnar * Save the full runtime - to allow normalization during printout: 37286470930SIngo Molnar */ 373f87027b9SJiri Olsa perf_stat__update_shadow_stats(counter, count, 0); 374c52b12edSArnaldo Carvalho de Melo 375c52b12edSArnaldo Carvalho de Melo return 0; 376f5b4a9c3SStephane Eranian } 377f5b4a9c3SStephane Eranian 378f5b4a9c3SStephane Eranian /* 379f5b4a9c3SStephane Eranian * Read out the results of a single counter: 380f5b4a9c3SStephane Eranian * do not aggregate counts across CPUs in system-wide mode 381f5b4a9c3SStephane Eranian */ 382c52b12edSArnaldo Carvalho de Melo static int read_counter(struct perf_evsel *counter) 383f5b4a9c3SStephane Eranian { 3849bf1a529SJiri Olsa int nthreads = thread_map__nr(evsel_list->threads); 3859bf1a529SJiri Olsa int ncpus = perf_evsel__nr_cpus(counter); 3869bf1a529SJiri Olsa int cpu, thread; 387f5b4a9c3SStephane Eranian 3883b4331d9SSuzuki K. Poulose if (!counter->supported) 3893b4331d9SSuzuki K. Poulose return -ENOENT; 3903b4331d9SSuzuki K. Poulose 3919bf1a529SJiri Olsa if (counter->system_wide) 3929bf1a529SJiri Olsa nthreads = 1; 3939bf1a529SJiri Olsa 394779d0b99SJiri Olsa if (counter->per_pkg) 395779d0b99SJiri Olsa zero_per_pkg(counter); 396779d0b99SJiri Olsa 3979bf1a529SJiri Olsa for (thread = 0; thread < nthreads; thread++) { 3989bf1a529SJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 3999bf1a529SJiri Olsa if (perf_evsel__read_cb(counter, cpu, thread, read_cb)) 400c52b12edSArnaldo Carvalho de Melo return -1; 401f5b4a9c3SStephane Eranian } 4029bf1a529SJiri Olsa } 403c52b12edSArnaldo Carvalho de Melo 404c52b12edSArnaldo Carvalho de Melo return 0; 40586470930SIngo Molnar } 40686470930SIngo Molnar 40713370a9bSStephane Eranian static void print_interval(void) 40813370a9bSStephane Eranian { 40913370a9bSStephane Eranian static int num_print_interval; 41013370a9bSStephane Eranian struct perf_evsel *counter; 41113370a9bSStephane Eranian struct perf_stat *ps; 41213370a9bSStephane Eranian struct timespec ts, rs; 41313370a9bSStephane Eranian char prefix[64]; 41413370a9bSStephane Eranian 41586ee6e18SStephane Eranian if (aggr_mode == AGGR_GLOBAL) { 4160050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 41713370a9bSStephane Eranian ps = counter->priv; 41813370a9bSStephane Eranian memset(ps->res_stats, 0, sizeof(ps->res_stats)); 41913370a9bSStephane Eranian read_counter_aggr(counter); 42013370a9bSStephane Eranian } 42186ee6e18SStephane Eranian } else { 4220050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 42386ee6e18SStephane Eranian ps = counter->priv; 42486ee6e18SStephane Eranian memset(ps->res_stats, 0, sizeof(ps->res_stats)); 42586ee6e18SStephane Eranian read_counter(counter); 42613370a9bSStephane Eranian } 42786ee6e18SStephane Eranian } 42886ee6e18SStephane Eranian 42913370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ts); 43013370a9bSStephane Eranian diff_timespec(&rs, &ts, &ref_time); 43113370a9bSStephane Eranian sprintf(prefix, "%6lu.%09lu%s", rs.tv_sec, rs.tv_nsec, csv_sep); 43213370a9bSStephane Eranian 43313370a9bSStephane Eranian if (num_print_interval == 0 && !csv_output) { 43486ee6e18SStephane Eranian switch (aggr_mode) { 43586ee6e18SStephane Eranian case AGGR_SOCKET: 436410136f5SStephane Eranian fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); 43786ee6e18SStephane Eranian break; 43812c08a9fSStephane Eranian case AGGR_CORE: 439410136f5SStephane Eranian fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); 44012c08a9fSStephane Eranian break; 44186ee6e18SStephane Eranian case AGGR_NONE: 442410136f5SStephane Eranian fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); 44386ee6e18SStephane Eranian break; 44486ee6e18SStephane Eranian case AGGR_GLOBAL: 44586ee6e18SStephane Eranian default: 446410136f5SStephane Eranian fprintf(output, "# time counts %*s events\n", unit_width, "unit"); 44713370a9bSStephane Eranian } 44886ee6e18SStephane Eranian } 44913370a9bSStephane Eranian 45013370a9bSStephane Eranian if (++num_print_interval == 25) 45113370a9bSStephane Eranian num_print_interval = 0; 45213370a9bSStephane Eranian 45386ee6e18SStephane Eranian switch (aggr_mode) { 45412c08a9fSStephane Eranian case AGGR_CORE: 45586ee6e18SStephane Eranian case AGGR_SOCKET: 45686ee6e18SStephane Eranian print_aggr(prefix); 45786ee6e18SStephane Eranian break; 45886ee6e18SStephane Eranian case AGGR_NONE: 4590050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 46013370a9bSStephane Eranian print_counter(counter, prefix); 46186ee6e18SStephane Eranian break; 46286ee6e18SStephane Eranian case AGGR_GLOBAL: 46386ee6e18SStephane Eranian default: 4640050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 46513370a9bSStephane Eranian print_counter_aggr(counter, prefix); 46613370a9bSStephane Eranian } 4672bbf03f1SAndi Kleen 4682bbf03f1SAndi Kleen fflush(output); 46913370a9bSStephane Eranian } 47013370a9bSStephane Eranian 47141191688SAndi Kleen static void handle_initial_delay(void) 47241191688SAndi Kleen { 47341191688SAndi Kleen struct perf_evsel *counter; 47441191688SAndi Kleen 47541191688SAndi Kleen if (initial_delay) { 47641191688SAndi Kleen const int ncpus = cpu_map__nr(evsel_list->cpus), 47741191688SAndi Kleen nthreads = thread_map__nr(evsel_list->threads); 47841191688SAndi Kleen 47941191688SAndi Kleen usleep(initial_delay * 1000); 4800050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 48141191688SAndi Kleen perf_evsel__enable(counter, ncpus, nthreads); 48241191688SAndi Kleen } 48341191688SAndi Kleen } 48441191688SAndi Kleen 485f33cbe72SArnaldo Carvalho de Melo static volatile int workload_exec_errno; 4866af206fdSArnaldo Carvalho de Melo 4876af206fdSArnaldo Carvalho de Melo /* 4886af206fdSArnaldo Carvalho de Melo * perf_evlist__prepare_workload will send a SIGUSR1 4896af206fdSArnaldo Carvalho de Melo * if the fork fails, since we asked by setting its 4906af206fdSArnaldo Carvalho de Melo * want_signal to true. 4916af206fdSArnaldo Carvalho de Melo */ 492f33cbe72SArnaldo Carvalho de Melo static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, 493f33cbe72SArnaldo Carvalho de Melo void *ucontext __maybe_unused) 4946af206fdSArnaldo Carvalho de Melo { 495f33cbe72SArnaldo Carvalho de Melo workload_exec_errno = info->si_value.sival_int; 4966af206fdSArnaldo Carvalho de Melo } 4976af206fdSArnaldo Carvalho de Melo 498acf28922SNamhyung Kim static int __run_perf_stat(int argc, const char **argv) 49986470930SIngo Molnar { 50056e52e85SArnaldo Carvalho de Melo char msg[512]; 50186470930SIngo Molnar unsigned long long t0, t1; 502cac21425SJiri Olsa struct perf_evsel *counter; 50313370a9bSStephane Eranian struct timespec ts; 504410136f5SStephane Eranian size_t l; 50542202dd5SIngo Molnar int status = 0; 5066be2850eSZhang, Yanmin const bool forks = (argc > 0); 50786470930SIngo Molnar 50813370a9bSStephane Eranian if (interval) { 50913370a9bSStephane Eranian ts.tv_sec = interval / 1000; 51013370a9bSStephane Eranian ts.tv_nsec = (interval % 1000) * 1000000; 51113370a9bSStephane Eranian } else { 51213370a9bSStephane Eranian ts.tv_sec = 1; 51313370a9bSStephane Eranian ts.tv_nsec = 0; 51413370a9bSStephane Eranian } 51513370a9bSStephane Eranian 516acf28922SNamhyung Kim if (forks) { 517735f7e0bSArnaldo Carvalho de Melo if (perf_evlist__prepare_workload(evsel_list, &target, argv, false, 518735f7e0bSArnaldo Carvalho de Melo workload_exec_failed_signal) < 0) { 519acf28922SNamhyung Kim perror("failed to prepare workload"); 520fceda7feSDavid Ahern return -1; 521051ae7f7SPaul Mackerras } 522d20a47e7SNamhyung Kim child_pid = evsel_list->workload.pid; 52360666c63SLiming Wang } 524051ae7f7SPaul Mackerras 5256a4bb04cSJiri Olsa if (group) 52663dab225SArnaldo Carvalho de Melo perf_evlist__set_leader(evsel_list); 5276a4bb04cSJiri Olsa 5280050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 529cac21425SJiri Olsa if (create_perf_stat_counter(counter) < 0) { 530979987a5SDavid Ahern /* 531979987a5SDavid Ahern * PPC returns ENXIO for HW counters until 2.6.37 532979987a5SDavid Ahern * (behavior changed with commit b0a873e). 533979987a5SDavid Ahern */ 53438f6ae1eSAnton Blanchard if (errno == EINVAL || errno == ENOSYS || 535979987a5SDavid Ahern errno == ENOENT || errno == EOPNOTSUPP || 536979987a5SDavid Ahern errno == ENXIO) { 537c63ca0c0SDavid Ahern if (verbose) 538c63ca0c0SDavid Ahern ui__warning("%s event is not supported by the kernel.\n", 5397289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 5402cee77c4SDavid Ahern counter->supported = false; 541cb5ef600SKan Liang 542cb5ef600SKan Liang if ((counter->leader != counter) || 543cb5ef600SKan Liang !(counter->leader->nr_members > 1)) 544ede70290SIngo Molnar continue; 545c63ca0c0SDavid Ahern } 546ede70290SIngo Molnar 54756e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &target, 54856e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 54956e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 55056e52e85SArnaldo Carvalho de Melo 551084ab9f8SArnaldo Carvalho de Melo if (child_pid != -1) 552084ab9f8SArnaldo Carvalho de Melo kill(child_pid, SIGTERM); 553fceda7feSDavid Ahern 554084ab9f8SArnaldo Carvalho de Melo return -1; 555084ab9f8SArnaldo Carvalho de Melo } 5562cee77c4SDavid Ahern counter->supported = true; 557410136f5SStephane Eranian 558410136f5SStephane Eranian l = strlen(counter->unit); 559410136f5SStephane Eranian if (l > unit_width) 560410136f5SStephane Eranian unit_width = l; 56148290609SArnaldo Carvalho de Melo } 56286470930SIngo Molnar 56323d4aad4SArnaldo Carvalho de Melo if (perf_evlist__apply_filters(evsel_list, &counter)) { 56423d4aad4SArnaldo Carvalho de Melo error("failed to set filter \"%s\" on event %s with %d (%s)\n", 56523d4aad4SArnaldo Carvalho de Melo counter->filter, perf_evsel__name(counter), errno, 566759e612bSMasami Hiramatsu strerror_r(errno, msg, sizeof(msg))); 567cfd748aeSFrederic Weisbecker return -1; 568cfd748aeSFrederic Weisbecker } 569cfd748aeSFrederic Weisbecker 57086470930SIngo Molnar /* 57186470930SIngo Molnar * Enable counters and exec the command: 57286470930SIngo Molnar */ 57386470930SIngo Molnar t0 = rdclock(); 57413370a9bSStephane Eranian clock_gettime(CLOCK_MONOTONIC, &ref_time); 57586470930SIngo Molnar 57660666c63SLiming Wang if (forks) { 577acf28922SNamhyung Kim perf_evlist__start_workload(evsel_list); 57841191688SAndi Kleen handle_initial_delay(); 579acf28922SNamhyung Kim 58013370a9bSStephane Eranian if (interval) { 58113370a9bSStephane Eranian while (!waitpid(child_pid, &status, WNOHANG)) { 58213370a9bSStephane Eranian nanosleep(&ts, NULL); 58313370a9bSStephane Eranian print_interval(); 58413370a9bSStephane Eranian } 58513370a9bSStephane Eranian } 58642202dd5SIngo Molnar wait(&status); 5876af206fdSArnaldo Carvalho de Melo 588f33cbe72SArnaldo Carvalho de Melo if (workload_exec_errno) { 589f33cbe72SArnaldo Carvalho de Melo const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); 590f33cbe72SArnaldo Carvalho de Melo pr_err("Workload failed: %s\n", emsg); 5916af206fdSArnaldo Carvalho de Melo return -1; 592f33cbe72SArnaldo Carvalho de Melo } 5936af206fdSArnaldo Carvalho de Melo 59433e49ea7SAndi Kleen if (WIFSIGNALED(status)) 59533e49ea7SAndi Kleen psignal(WTERMSIG(status), argv[0]); 59660666c63SLiming Wang } else { 59741191688SAndi Kleen handle_initial_delay(); 59813370a9bSStephane Eranian while (!done) { 59913370a9bSStephane Eranian nanosleep(&ts, NULL); 60013370a9bSStephane Eranian if (interval) 60113370a9bSStephane Eranian print_interval(); 60213370a9bSStephane Eranian } 60360666c63SLiming Wang } 60486470930SIngo Molnar 60586470930SIngo Molnar t1 = rdclock(); 60686470930SIngo Molnar 6079e9772c4SPeter Zijlstra update_stats(&walltime_nsecs_stats, t1 - t0); 60842202dd5SIngo Molnar 60986ee6e18SStephane Eranian if (aggr_mode == AGGR_GLOBAL) { 6100050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 611c52b12edSArnaldo Carvalho de Melo read_counter_aggr(counter); 6127ae92e74SYan, Zheng perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 613b3a319d5SNamhyung Kim thread_map__nr(evsel_list->threads)); 614c52b12edSArnaldo Carvalho de Melo } 61586ee6e18SStephane Eranian } else { 6160050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 61786ee6e18SStephane Eranian read_counter(counter); 61886ee6e18SStephane Eranian perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 1); 61986ee6e18SStephane Eranian } 620c52b12edSArnaldo Carvalho de Melo } 621c52b12edSArnaldo Carvalho de Melo 62242202dd5SIngo Molnar return WEXITSTATUS(status); 62342202dd5SIngo Molnar } 62442202dd5SIngo Molnar 62541cde476SArnaldo Carvalho de Melo static int run_perf_stat(int argc, const char **argv) 6261f16c575SPeter Zijlstra { 6271f16c575SPeter Zijlstra int ret; 6281f16c575SPeter Zijlstra 6291f16c575SPeter Zijlstra if (pre_cmd) { 6301f16c575SPeter Zijlstra ret = system(pre_cmd); 6311f16c575SPeter Zijlstra if (ret) 6321f16c575SPeter Zijlstra return ret; 6331f16c575SPeter Zijlstra } 6341f16c575SPeter Zijlstra 6351f16c575SPeter Zijlstra if (sync_run) 6361f16c575SPeter Zijlstra sync(); 6371f16c575SPeter Zijlstra 6381f16c575SPeter Zijlstra ret = __run_perf_stat(argc, argv); 6391f16c575SPeter Zijlstra if (ret) 6401f16c575SPeter Zijlstra return ret; 6411f16c575SPeter Zijlstra 6421f16c575SPeter Zijlstra if (post_cmd) { 6431f16c575SPeter Zijlstra ret = system(post_cmd); 6441f16c575SPeter Zijlstra if (ret) 6451f16c575SPeter Zijlstra return ret; 6461f16c575SPeter Zijlstra } 6471f16c575SPeter Zijlstra 6481f16c575SPeter Zijlstra return ret; 6491f16c575SPeter Zijlstra } 6501f16c575SPeter Zijlstra 651d73515c0SAndi Kleen static void print_running(u64 run, u64 ena) 652d73515c0SAndi Kleen { 653d73515c0SAndi Kleen if (csv_output) { 654d73515c0SAndi Kleen fprintf(output, "%s%" PRIu64 "%s%.2f", 655d73515c0SAndi Kleen csv_sep, 656d73515c0SAndi Kleen run, 657d73515c0SAndi Kleen csv_sep, 658d73515c0SAndi Kleen ena ? 100.0 * run / ena : 100.0); 659d73515c0SAndi Kleen } else if (run != ena) { 660d73515c0SAndi Kleen fprintf(output, " (%.2f%%)", 100.0 * run / ena); 661d73515c0SAndi Kleen } 662d73515c0SAndi Kleen } 663d73515c0SAndi Kleen 664f99844cbSIngo Molnar static void print_noise_pct(double total, double avg) 665f99844cbSIngo Molnar { 6660007eceaSXiao Guangrong double pct = rel_stddev_stats(total, avg); 667f99844cbSIngo Molnar 6683ae9a34dSZhengyu He if (csv_output) 6694aa9015fSStephane Eranian fprintf(output, "%s%.2f%%", csv_sep, pct); 670a1bca6ccSJim Cromie else if (pct) 6714aa9015fSStephane Eranian fprintf(output, " ( +-%6.2f%% )", pct); 672f99844cbSIngo Molnar } 673f99844cbSIngo Molnar 67469aad6f1SArnaldo Carvalho de Melo static void print_noise(struct perf_evsel *evsel, double avg) 67542202dd5SIngo Molnar { 67669aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps; 67769aad6f1SArnaldo Carvalho de Melo 678849abde9SPeter Zijlstra if (run_count == 1) 679849abde9SPeter Zijlstra return; 680849abde9SPeter Zijlstra 68169aad6f1SArnaldo Carvalho de Melo ps = evsel->priv; 682f99844cbSIngo Molnar print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); 68342202dd5SIngo Molnar } 68442202dd5SIngo Molnar 68512c08a9fSStephane Eranian static void aggr_printout(struct perf_evsel *evsel, int id, int nr) 68642202dd5SIngo Molnar { 68786ee6e18SStephane Eranian switch (aggr_mode) { 68812c08a9fSStephane Eranian case AGGR_CORE: 68912c08a9fSStephane Eranian fprintf(output, "S%d-C%*d%s%*d%s", 69012c08a9fSStephane Eranian cpu_map__id_to_socket(id), 69112c08a9fSStephane Eranian csv_output ? 0 : -8, 69212c08a9fSStephane Eranian cpu_map__id_to_cpu(id), 69312c08a9fSStephane Eranian csv_sep, 69412c08a9fSStephane Eranian csv_output ? 0 : 4, 69512c08a9fSStephane Eranian nr, 69612c08a9fSStephane Eranian csv_sep); 69712c08a9fSStephane Eranian break; 69886ee6e18SStephane Eranian case AGGR_SOCKET: 69986ee6e18SStephane Eranian fprintf(output, "S%*d%s%*d%s", 700d7e7a451SStephane Eranian csv_output ? 0 : -5, 70112c08a9fSStephane Eranian id, 702d7e7a451SStephane Eranian csv_sep, 703d7e7a451SStephane Eranian csv_output ? 0 : 4, 704d7e7a451SStephane Eranian nr, 705d7e7a451SStephane Eranian csv_sep); 70686ee6e18SStephane Eranian break; 70786ee6e18SStephane Eranian case AGGR_NONE: 70886ee6e18SStephane Eranian fprintf(output, "CPU%*d%s", 709d7470b6aSStephane Eranian csv_output ? 0 : -4, 71012c08a9fSStephane Eranian perf_evsel__cpus(evsel)->map[id], csv_sep); 71186ee6e18SStephane Eranian break; 71286ee6e18SStephane Eranian case AGGR_GLOBAL: 71386ee6e18SStephane Eranian default: 71486ee6e18SStephane Eranian break; 71586ee6e18SStephane Eranian } 71686ee6e18SStephane Eranian } 717d7470b6aSStephane Eranian 718da88c7f7SAndi Kleen static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) 71986ee6e18SStephane Eranian { 72086ee6e18SStephane Eranian double msecs = avg / 1e6; 721410136f5SStephane Eranian const char *fmt_v, *fmt_n; 7224bbe5a61SDavid Ahern char name[25]; 72386ee6e18SStephane Eranian 724410136f5SStephane Eranian fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; 725410136f5SStephane Eranian fmt_n = csv_output ? "%s" : "%-25s"; 726410136f5SStephane Eranian 727da88c7f7SAndi Kleen aggr_printout(evsel, id, nr); 72886ee6e18SStephane Eranian 7294bbe5a61SDavid Ahern scnprintf(name, sizeof(name), "%s%s", 7304bbe5a61SDavid Ahern perf_evsel__name(evsel), csv_output ? "" : " (msec)"); 731410136f5SStephane Eranian 732410136f5SStephane Eranian fprintf(output, fmt_v, msecs, csv_sep); 733410136f5SStephane Eranian 734410136f5SStephane Eranian if (csv_output) 735410136f5SStephane Eranian fprintf(output, "%s%s", evsel->unit, csv_sep); 736410136f5SStephane Eranian else 737410136f5SStephane Eranian fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); 738410136f5SStephane Eranian 739410136f5SStephane Eranian fprintf(output, fmt_n, name); 740d7470b6aSStephane Eranian 741023695d9SStephane Eranian if (evsel->cgrp) 7424aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 743023695d9SStephane Eranian 74413370a9bSStephane Eranian if (csv_output || interval) 745d7470b6aSStephane Eranian return; 74642202dd5SIngo Molnar 747daec78a0SArnaldo Carvalho de Melo if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) 7484aa9015fSStephane Eranian fprintf(output, " # %8.3f CPUs utilized ", 7494aa9015fSStephane Eranian avg / avg_stats(&walltime_nsecs_stats)); 7509dac6a29SNamhyung Kim else 7519dac6a29SNamhyung Kim fprintf(output, " "); 75242202dd5SIngo Molnar } 75342202dd5SIngo Molnar 754556b1fb7SJiri Olsa static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) 755556b1fb7SJiri Olsa { 756556b1fb7SJiri Olsa double sc = evsel->scale; 757556b1fb7SJiri Olsa const char *fmt; 758556b1fb7SJiri Olsa int cpu = cpu_map__id_to_cpu(id); 759556b1fb7SJiri Olsa 760556b1fb7SJiri Olsa if (csv_output) { 761556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; 762556b1fb7SJiri Olsa } else { 763556b1fb7SJiri Olsa if (big_num) 764556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; 765556b1fb7SJiri Olsa else 766556b1fb7SJiri Olsa fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; 767556b1fb7SJiri Olsa } 768556b1fb7SJiri Olsa 769556b1fb7SJiri Olsa aggr_printout(evsel, id, nr); 770556b1fb7SJiri Olsa 771556b1fb7SJiri Olsa if (aggr_mode == AGGR_GLOBAL) 772556b1fb7SJiri Olsa cpu = 0; 773556b1fb7SJiri Olsa 774556b1fb7SJiri Olsa fprintf(output, fmt, avg, csv_sep); 775556b1fb7SJiri Olsa 776556b1fb7SJiri Olsa if (evsel->unit) 777556b1fb7SJiri Olsa fprintf(output, "%-*s%s", 778556b1fb7SJiri Olsa csv_output ? 0 : unit_width, 779556b1fb7SJiri Olsa evsel->unit, csv_sep); 780556b1fb7SJiri Olsa 781556b1fb7SJiri Olsa fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); 782556b1fb7SJiri Olsa 783556b1fb7SJiri Olsa if (evsel->cgrp) 784556b1fb7SJiri Olsa fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); 785556b1fb7SJiri Olsa 786556b1fb7SJiri Olsa if (csv_output || interval) 787556b1fb7SJiri Olsa return; 788556b1fb7SJiri Olsa 789f87027b9SJiri Olsa perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode); 790556b1fb7SJiri Olsa } 791556b1fb7SJiri Olsa 79286ee6e18SStephane Eranian static void print_aggr(char *prefix) 793d7e7a451SStephane Eranian { 794d7e7a451SStephane Eranian struct perf_evsel *counter; 795582ec082SStephane Eranian int cpu, cpu2, s, s2, id, nr; 796410136f5SStephane Eranian double uval; 797d7e7a451SStephane Eranian u64 ena, run, val; 798d7e7a451SStephane Eranian 79986ee6e18SStephane Eranian if (!(aggr_map || aggr_get_id)) 800d7e7a451SStephane Eranian return; 801d7e7a451SStephane Eranian 80286ee6e18SStephane Eranian for (s = 0; s < aggr_map->nr; s++) { 80386ee6e18SStephane Eranian id = aggr_map->map[s]; 8040050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) { 805d7e7a451SStephane Eranian val = ena = run = 0; 806d7e7a451SStephane Eranian nr = 0; 807d7e7a451SStephane Eranian for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 808582ec082SStephane Eranian cpu2 = perf_evsel__cpus(counter)->map[cpu]; 809582ec082SStephane Eranian s2 = aggr_get_id(evsel_list->cpus, cpu2); 81086ee6e18SStephane Eranian if (s2 != id) 811d7e7a451SStephane Eranian continue; 812a6fa0038SJiri Olsa val += perf_counts(counter->counts, cpu, 0)->val; 813a6fa0038SJiri Olsa ena += perf_counts(counter->counts, cpu, 0)->ena; 814a6fa0038SJiri Olsa run += perf_counts(counter->counts, cpu, 0)->run; 815d7e7a451SStephane Eranian nr++; 816d7e7a451SStephane Eranian } 817d7e7a451SStephane Eranian if (prefix) 818d7e7a451SStephane Eranian fprintf(output, "%s", prefix); 819d7e7a451SStephane Eranian 820d7e7a451SStephane Eranian if (run == 0 || ena == 0) { 821582ec082SStephane Eranian aggr_printout(counter, id, nr); 82286ee6e18SStephane Eranian 823410136f5SStephane Eranian fprintf(output, "%*s%s", 824d7e7a451SStephane Eranian csv_output ? 0 : 18, 825d7e7a451SStephane Eranian counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 826410136f5SStephane Eranian csv_sep); 827410136f5SStephane Eranian 828410136f5SStephane Eranian fprintf(output, "%-*s%s", 829410136f5SStephane Eranian csv_output ? 0 : unit_width, 830410136f5SStephane Eranian counter->unit, csv_sep); 831410136f5SStephane Eranian 832410136f5SStephane Eranian fprintf(output, "%*s", 833410136f5SStephane Eranian csv_output ? 0 : -25, 834d7e7a451SStephane Eranian perf_evsel__name(counter)); 83586ee6e18SStephane Eranian 836d7e7a451SStephane Eranian if (counter->cgrp) 837d7e7a451SStephane Eranian fprintf(output, "%s%s", 838d7e7a451SStephane Eranian csv_sep, counter->cgrp->name); 839d7e7a451SStephane Eranian 840d73515c0SAndi Kleen print_running(run, ena); 841d7e7a451SStephane Eranian fputc('\n', output); 842d7e7a451SStephane Eranian continue; 843d7e7a451SStephane Eranian } 844410136f5SStephane Eranian uval = val * counter->scale; 845d7e7a451SStephane Eranian 846d7e7a451SStephane Eranian if (nsec_counter(counter)) 847410136f5SStephane Eranian nsec_printout(id, nr, counter, uval); 848d7e7a451SStephane Eranian else 849410136f5SStephane Eranian abs_printout(id, nr, counter, uval); 850d7e7a451SStephane Eranian 851d73515c0SAndi Kleen if (!csv_output) 852d7e7a451SStephane Eranian print_noise(counter, 1.0); 853d7e7a451SStephane Eranian 854d73515c0SAndi Kleen print_running(run, ena); 855d7e7a451SStephane Eranian fputc('\n', output); 856d7e7a451SStephane Eranian } 857d7e7a451SStephane Eranian } 858d7e7a451SStephane Eranian } 859d7e7a451SStephane Eranian 86042202dd5SIngo Molnar /* 86142202dd5SIngo Molnar * Print out the results of a single counter: 862f5b4a9c3SStephane Eranian * aggregated counts in system-wide mode 86342202dd5SIngo Molnar */ 86413370a9bSStephane Eranian static void print_counter_aggr(struct perf_evsel *counter, char *prefix) 86542202dd5SIngo Molnar { 86669aad6f1SArnaldo Carvalho de Melo struct perf_stat *ps = counter->priv; 86769aad6f1SArnaldo Carvalho de Melo double avg = avg_stats(&ps->res_stats[0]); 868c52b12edSArnaldo Carvalho de Melo int scaled = counter->counts->scaled; 869410136f5SStephane Eranian double uval; 870d73515c0SAndi Kleen double avg_enabled, avg_running; 871d73515c0SAndi Kleen 872d73515c0SAndi Kleen avg_enabled = avg_stats(&ps->res_stats[1]); 873d73515c0SAndi Kleen avg_running = avg_stats(&ps->res_stats[2]); 87442202dd5SIngo Molnar 87513370a9bSStephane Eranian if (prefix) 87613370a9bSStephane Eranian fprintf(output, "%s", prefix); 87713370a9bSStephane Eranian 8783b4331d9SSuzuki K. Poulose if (scaled == -1 || !counter->supported) { 879410136f5SStephane Eranian fprintf(output, "%*s%s", 880d7470b6aSStephane Eranian csv_output ? 0 : 18, 8812cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 882410136f5SStephane Eranian csv_sep); 883410136f5SStephane Eranian fprintf(output, "%-*s%s", 884410136f5SStephane Eranian csv_output ? 0 : unit_width, 885410136f5SStephane Eranian counter->unit, csv_sep); 886410136f5SStephane Eranian fprintf(output, "%*s", 887410136f5SStephane Eranian csv_output ? 0 : -25, 8887289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 889023695d9SStephane Eranian 890023695d9SStephane Eranian if (counter->cgrp) 8914aa9015fSStephane Eranian fprintf(output, "%s%s", csv_sep, counter->cgrp->name); 892023695d9SStephane Eranian 893d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 8944aa9015fSStephane Eranian fputc('\n', output); 89542202dd5SIngo Molnar return; 89642202dd5SIngo Molnar } 89742202dd5SIngo Molnar 898410136f5SStephane Eranian uval = avg * counter->scale; 899410136f5SStephane Eranian 90042202dd5SIngo Molnar if (nsec_counter(counter)) 901410136f5SStephane Eranian nsec_printout(-1, 0, counter, uval); 90242202dd5SIngo Molnar else 903410136f5SStephane Eranian abs_printout(-1, 0, counter, uval); 904849abde9SPeter Zijlstra 9053ae9a34dSZhengyu He print_noise(counter, avg); 9063ae9a34dSZhengyu He 907d73515c0SAndi Kleen print_running(avg_running, avg_enabled); 9084aa9015fSStephane Eranian fprintf(output, "\n"); 90942202dd5SIngo Molnar } 91042202dd5SIngo Molnar 911f5b4a9c3SStephane Eranian /* 912f5b4a9c3SStephane Eranian * Print out the results of a single counter: 913f5b4a9c3SStephane Eranian * does not use aggregated count in system-wide 914f5b4a9c3SStephane Eranian */ 91513370a9bSStephane Eranian static void print_counter(struct perf_evsel *counter, char *prefix) 916f5b4a9c3SStephane Eranian { 917f5b4a9c3SStephane Eranian u64 ena, run, val; 918410136f5SStephane Eranian double uval; 919f5b4a9c3SStephane Eranian int cpu; 920f5b4a9c3SStephane Eranian 9217ae92e74SYan, Zheng for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { 922a6fa0038SJiri Olsa val = perf_counts(counter->counts, cpu, 0)->val; 923a6fa0038SJiri Olsa ena = perf_counts(counter->counts, cpu, 0)->ena; 924a6fa0038SJiri Olsa run = perf_counts(counter->counts, cpu, 0)->run; 92513370a9bSStephane Eranian 92613370a9bSStephane Eranian if (prefix) 92713370a9bSStephane Eranian fprintf(output, "%s", prefix); 92813370a9bSStephane Eranian 929f5b4a9c3SStephane Eranian if (run == 0 || ena == 0) { 930410136f5SStephane Eranian fprintf(output, "CPU%*d%s%*s%s", 931d7470b6aSStephane Eranian csv_output ? 0 : -4, 9327ae92e74SYan, Zheng perf_evsel__cpus(counter)->map[cpu], csv_sep, 933d7470b6aSStephane Eranian csv_output ? 0 : 18, 9342cee77c4SDavid Ahern counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, 935410136f5SStephane Eranian csv_sep); 936410136f5SStephane Eranian 937410136f5SStephane Eranian fprintf(output, "%-*s%s", 938410136f5SStephane Eranian csv_output ? 0 : unit_width, 939410136f5SStephane Eranian counter->unit, csv_sep); 940410136f5SStephane Eranian 941410136f5SStephane Eranian fprintf(output, "%*s", 942410136f5SStephane Eranian csv_output ? 0 : -25, 9437289f83cSArnaldo Carvalho de Melo perf_evsel__name(counter)); 944f5b4a9c3SStephane Eranian 945023695d9SStephane Eranian if (counter->cgrp) 9464aa9015fSStephane Eranian fprintf(output, "%s%s", 9474aa9015fSStephane Eranian csv_sep, counter->cgrp->name); 948023695d9SStephane Eranian 949d73515c0SAndi Kleen print_running(run, ena); 9504aa9015fSStephane Eranian fputc('\n', output); 951f5b4a9c3SStephane Eranian continue; 952f5b4a9c3SStephane Eranian } 953f5b4a9c3SStephane Eranian 954410136f5SStephane Eranian uval = val * counter->scale; 955410136f5SStephane Eranian 956f5b4a9c3SStephane Eranian if (nsec_counter(counter)) 957410136f5SStephane Eranian nsec_printout(cpu, 0, counter, uval); 958f5b4a9c3SStephane Eranian else 959410136f5SStephane Eranian abs_printout(cpu, 0, counter, uval); 960f5b4a9c3SStephane Eranian 961d73515c0SAndi Kleen if (!csv_output) 962f5b4a9c3SStephane Eranian print_noise(counter, 1.0); 963d73515c0SAndi Kleen print_running(run, ena); 964f5b4a9c3SStephane Eranian 9654aa9015fSStephane Eranian fputc('\n', output); 966f5b4a9c3SStephane Eranian } 967f5b4a9c3SStephane Eranian } 968f5b4a9c3SStephane Eranian 96942202dd5SIngo Molnar static void print_stat(int argc, const char **argv) 97042202dd5SIngo Molnar { 97169aad6f1SArnaldo Carvalho de Melo struct perf_evsel *counter; 97269aad6f1SArnaldo Carvalho de Melo int i; 97342202dd5SIngo Molnar 97486470930SIngo Molnar fflush(stdout); 97586470930SIngo Molnar 976d7470b6aSStephane Eranian if (!csv_output) { 9774aa9015fSStephane Eranian fprintf(output, "\n"); 9784aa9015fSStephane Eranian fprintf(output, " Performance counter stats for "); 97962d3b617SDavid Ahern if (target.system_wide) 98062d3b617SDavid Ahern fprintf(output, "\'system wide"); 98162d3b617SDavid Ahern else if (target.cpu_list) 98262d3b617SDavid Ahern fprintf(output, "\'CPU(s) %s", target.cpu_list); 983602ad878SArnaldo Carvalho de Melo else if (!target__has_task(&target)) { 9844aa9015fSStephane Eranian fprintf(output, "\'%s", argv[0]); 98586470930SIngo Molnar for (i = 1; i < argc; i++) 9864aa9015fSStephane Eranian fprintf(output, " %s", argv[i]); 98720f946b4SNamhyung Kim } else if (target.pid) 98820f946b4SNamhyung Kim fprintf(output, "process id \'%s", target.pid); 989d6d901c2SZhang, Yanmin else 99020f946b4SNamhyung Kim fprintf(output, "thread id \'%s", target.tid); 99186470930SIngo Molnar 9924aa9015fSStephane Eranian fprintf(output, "\'"); 99342202dd5SIngo Molnar if (run_count > 1) 9944aa9015fSStephane Eranian fprintf(output, " (%d runs)", run_count); 9954aa9015fSStephane Eranian fprintf(output, ":\n\n"); 996d7470b6aSStephane Eranian } 99786470930SIngo Molnar 99886ee6e18SStephane Eranian switch (aggr_mode) { 99912c08a9fSStephane Eranian case AGGR_CORE: 100086ee6e18SStephane Eranian case AGGR_SOCKET: 100186ee6e18SStephane Eranian print_aggr(NULL); 100286ee6e18SStephane Eranian break; 100386ee6e18SStephane Eranian case AGGR_GLOBAL: 10040050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 100513370a9bSStephane Eranian print_counter_aggr(counter, NULL); 100686ee6e18SStephane Eranian break; 100786ee6e18SStephane Eranian case AGGR_NONE: 10080050f7aaSArnaldo Carvalho de Melo evlist__for_each(evsel_list, counter) 100986ee6e18SStephane Eranian print_counter(counter, NULL); 101086ee6e18SStephane Eranian break; 101186ee6e18SStephane Eranian default: 101286ee6e18SStephane Eranian break; 1013f5b4a9c3SStephane Eranian } 101486470930SIngo Molnar 1015d7470b6aSStephane Eranian if (!csv_output) { 1016c3305257SIngo Molnar if (!null_run) 10174aa9015fSStephane Eranian fprintf(output, "\n"); 10184aa9015fSStephane Eranian fprintf(output, " %17.9f seconds time elapsed", 1019506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)/1e9); 1020566747e6SIngo Molnar if (run_count > 1) { 10214aa9015fSStephane Eranian fprintf(output, " "); 1022f99844cbSIngo Molnar print_noise_pct(stddev_stats(&walltime_nsecs_stats), 1023506d4bc8SPeter Zijlstra avg_stats(&walltime_nsecs_stats)); 1024566747e6SIngo Molnar } 10254aa9015fSStephane Eranian fprintf(output, "\n\n"); 102686470930SIngo Molnar } 1027d7470b6aSStephane Eranian } 102886470930SIngo Molnar 1029f7b7c26eSPeter Zijlstra static volatile int signr = -1; 1030f7b7c26eSPeter Zijlstra 103186470930SIngo Molnar static void skip_signal(int signo) 103286470930SIngo Molnar { 103313370a9bSStephane Eranian if ((child_pid == -1) || interval) 103460666c63SLiming Wang done = 1; 103560666c63SLiming Wang 1036f7b7c26eSPeter Zijlstra signr = signo; 1037d07f0b12SStephane Eranian /* 1038d07f0b12SStephane Eranian * render child_pid harmless 1039d07f0b12SStephane Eranian * won't send SIGTERM to a random 1040d07f0b12SStephane Eranian * process in case of race condition 1041d07f0b12SStephane Eranian * and fast PID recycling 1042d07f0b12SStephane Eranian */ 1043d07f0b12SStephane Eranian child_pid = -1; 1044f7b7c26eSPeter Zijlstra } 1045f7b7c26eSPeter Zijlstra 1046f7b7c26eSPeter Zijlstra static void sig_atexit(void) 1047f7b7c26eSPeter Zijlstra { 1048d07f0b12SStephane Eranian sigset_t set, oset; 1049d07f0b12SStephane Eranian 1050d07f0b12SStephane Eranian /* 1051d07f0b12SStephane Eranian * avoid race condition with SIGCHLD handler 1052d07f0b12SStephane Eranian * in skip_signal() which is modifying child_pid 1053d07f0b12SStephane Eranian * goal is to avoid send SIGTERM to a random 1054d07f0b12SStephane Eranian * process 1055d07f0b12SStephane Eranian */ 1056d07f0b12SStephane Eranian sigemptyset(&set); 1057d07f0b12SStephane Eranian sigaddset(&set, SIGCHLD); 1058d07f0b12SStephane Eranian sigprocmask(SIG_BLOCK, &set, &oset); 1059d07f0b12SStephane Eranian 1060933da83aSChris Wilson if (child_pid != -1) 1061933da83aSChris Wilson kill(child_pid, SIGTERM); 1062933da83aSChris Wilson 1063d07f0b12SStephane Eranian sigprocmask(SIG_SETMASK, &oset, NULL); 1064d07f0b12SStephane Eranian 1065f7b7c26eSPeter Zijlstra if (signr == -1) 1066f7b7c26eSPeter Zijlstra return; 1067f7b7c26eSPeter Zijlstra 1068f7b7c26eSPeter Zijlstra signal(signr, SIG_DFL); 1069f7b7c26eSPeter Zijlstra kill(getpid(), signr); 107086470930SIngo Molnar } 107186470930SIngo Molnar 10721d037ca1SIrina Tirdea static int stat__set_big_num(const struct option *opt __maybe_unused, 10731d037ca1SIrina Tirdea const char *s __maybe_unused, int unset) 1074d7470b6aSStephane Eranian { 1075d7470b6aSStephane Eranian big_num_opt = unset ? 0 : 1; 1076d7470b6aSStephane Eranian return 0; 1077d7470b6aSStephane Eranian } 1078d7470b6aSStephane Eranian 107986ee6e18SStephane Eranian static int perf_stat_init_aggr_mode(void) 108086ee6e18SStephane Eranian { 108186ee6e18SStephane Eranian switch (aggr_mode) { 108286ee6e18SStephane Eranian case AGGR_SOCKET: 108386ee6e18SStephane Eranian if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { 108486ee6e18SStephane Eranian perror("cannot build socket map"); 108586ee6e18SStephane Eranian return -1; 108686ee6e18SStephane Eranian } 108786ee6e18SStephane Eranian aggr_get_id = cpu_map__get_socket; 108886ee6e18SStephane Eranian break; 108912c08a9fSStephane Eranian case AGGR_CORE: 109012c08a9fSStephane Eranian if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { 109112c08a9fSStephane Eranian perror("cannot build core map"); 109212c08a9fSStephane Eranian return -1; 109312c08a9fSStephane Eranian } 109412c08a9fSStephane Eranian aggr_get_id = cpu_map__get_core; 109512c08a9fSStephane Eranian break; 109686ee6e18SStephane Eranian case AGGR_NONE: 109786ee6e18SStephane Eranian case AGGR_GLOBAL: 109886ee6e18SStephane Eranian default: 109986ee6e18SStephane Eranian break; 110086ee6e18SStephane Eranian } 110186ee6e18SStephane Eranian return 0; 110286ee6e18SStephane Eranian } 110386ee6e18SStephane Eranian 11042cba3ffbSIngo Molnar /* 11052cba3ffbSIngo Molnar * Add default attributes, if there were no attributes specified or 11062cba3ffbSIngo Molnar * if -d/--detailed, -d -d or -d -d -d is used: 11072cba3ffbSIngo Molnar */ 11082cba3ffbSIngo Molnar static int add_default_attributes(void) 11092cba3ffbSIngo Molnar { 1110b070a547SArnaldo Carvalho de Melo struct perf_event_attr default_attrs[] = { 1111b070a547SArnaldo Carvalho de Melo 1112b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, 1113b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, 1114b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, 1115b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, 1116b070a547SArnaldo Carvalho de Melo 1117b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, 1118b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, 1119b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, 1120b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, 1121b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, 1122b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, 1123b070a547SArnaldo Carvalho de Melo 1124b070a547SArnaldo Carvalho de Melo }; 1125b070a547SArnaldo Carvalho de Melo 1126b070a547SArnaldo Carvalho de Melo /* 1127b070a547SArnaldo Carvalho de Melo * Detailed stats (-d), covering the L1 and last level data caches: 1128b070a547SArnaldo Carvalho de Melo */ 1129b070a547SArnaldo Carvalho de Melo struct perf_event_attr detailed_attrs[] = { 1130b070a547SArnaldo Carvalho de Melo 1131b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1132b070a547SArnaldo Carvalho de Melo .config = 1133b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1134b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1135b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1136b070a547SArnaldo Carvalho de Melo 1137b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1138b070a547SArnaldo Carvalho de Melo .config = 1139b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1140b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1141b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1142b070a547SArnaldo Carvalho de Melo 1143b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1144b070a547SArnaldo Carvalho de Melo .config = 1145b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1146b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1147b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1148b070a547SArnaldo Carvalho de Melo 1149b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1150b070a547SArnaldo Carvalho de Melo .config = 1151b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_LL << 0 | 1152b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1153b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1154b070a547SArnaldo Carvalho de Melo }; 1155b070a547SArnaldo Carvalho de Melo 1156b070a547SArnaldo Carvalho de Melo /* 1157b070a547SArnaldo Carvalho de Melo * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: 1158b070a547SArnaldo Carvalho de Melo */ 1159b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_detailed_attrs[] = { 1160b070a547SArnaldo Carvalho de Melo 1161b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1162b070a547SArnaldo Carvalho de Melo .config = 1163b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1164b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1165b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1166b070a547SArnaldo Carvalho de Melo 1167b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1168b070a547SArnaldo Carvalho de Melo .config = 1169b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1I << 0 | 1170b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1171b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1172b070a547SArnaldo Carvalho de Melo 1173b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1174b070a547SArnaldo Carvalho de Melo .config = 1175b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1176b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1177b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1178b070a547SArnaldo Carvalho de Melo 1179b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1180b070a547SArnaldo Carvalho de Melo .config = 1181b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_DTLB << 0 | 1182b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1183b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1184b070a547SArnaldo Carvalho de Melo 1185b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1186b070a547SArnaldo Carvalho de Melo .config = 1187b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1188b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1189b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1190b070a547SArnaldo Carvalho de Melo 1191b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1192b070a547SArnaldo Carvalho de Melo .config = 1193b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_ITLB << 0 | 1194b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_READ << 8) | 1195b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1196b070a547SArnaldo Carvalho de Melo 1197b070a547SArnaldo Carvalho de Melo }; 1198b070a547SArnaldo Carvalho de Melo 1199b070a547SArnaldo Carvalho de Melo /* 1200b070a547SArnaldo Carvalho de Melo * Very, very detailed stats (-d -d -d), adding prefetch events: 1201b070a547SArnaldo Carvalho de Melo */ 1202b070a547SArnaldo Carvalho de Melo struct perf_event_attr very_very_detailed_attrs[] = { 1203b070a547SArnaldo Carvalho de Melo 1204b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1205b070a547SArnaldo Carvalho de Melo .config = 1206b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1207b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1208b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, 1209b070a547SArnaldo Carvalho de Melo 1210b070a547SArnaldo Carvalho de Melo { .type = PERF_TYPE_HW_CACHE, 1211b070a547SArnaldo Carvalho de Melo .config = 1212b070a547SArnaldo Carvalho de Melo PERF_COUNT_HW_CACHE_L1D << 0 | 1213b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | 1214b070a547SArnaldo Carvalho de Melo (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, 1215b070a547SArnaldo Carvalho de Melo }; 1216b070a547SArnaldo Carvalho de Melo 12172cba3ffbSIngo Molnar /* Set attrs if no event is selected and !null_run: */ 12182cba3ffbSIngo Molnar if (null_run) 12192cba3ffbSIngo Molnar return 0; 12202cba3ffbSIngo Molnar 12214cabc3d1SAndi Kleen if (transaction_run) { 12224cabc3d1SAndi Kleen int err; 12234cabc3d1SAndi Kleen if (pmu_have_event("cpu", "cycles-ct") && 12244cabc3d1SAndi Kleen pmu_have_event("cpu", "el-start")) 1225a454742cSJiri Olsa err = parse_events(evsel_list, transaction_attrs, NULL); 12264cabc3d1SAndi Kleen else 1227a454742cSJiri Olsa err = parse_events(evsel_list, transaction_limited_attrs, NULL); 1228a454742cSJiri Olsa if (err) { 12294cabc3d1SAndi Kleen fprintf(stderr, "Cannot set up transaction events\n"); 12304cabc3d1SAndi Kleen return -1; 12314cabc3d1SAndi Kleen } 12324cabc3d1SAndi Kleen return 0; 12334cabc3d1SAndi Kleen } 12344cabc3d1SAndi Kleen 12352cba3ffbSIngo Molnar if (!evsel_list->nr_entries) { 123679695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) 12372cba3ffbSIngo Molnar return -1; 12382cba3ffbSIngo Molnar } 12392cba3ffbSIngo Molnar 12402cba3ffbSIngo Molnar /* Detailed events get appended to the event list: */ 12412cba3ffbSIngo Molnar 12422cba3ffbSIngo Molnar if (detailed_run < 1) 12432cba3ffbSIngo Molnar return 0; 12442cba3ffbSIngo Molnar 12452cba3ffbSIngo Molnar /* Append detailed run extra attributes: */ 124679695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) 12472cba3ffbSIngo Molnar return -1; 12482cba3ffbSIngo Molnar 12492cba3ffbSIngo Molnar if (detailed_run < 2) 12502cba3ffbSIngo Molnar return 0; 12512cba3ffbSIngo Molnar 12522cba3ffbSIngo Molnar /* Append very detailed run extra attributes: */ 125379695e1bSArnaldo Carvalho de Melo if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) 12542cba3ffbSIngo Molnar return -1; 12552cba3ffbSIngo Molnar 12562cba3ffbSIngo Molnar if (detailed_run < 3) 12572cba3ffbSIngo Molnar return 0; 12582cba3ffbSIngo Molnar 12592cba3ffbSIngo Molnar /* Append very, very detailed run extra attributes: */ 126079695e1bSArnaldo Carvalho de Melo return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); 12612cba3ffbSIngo Molnar } 12622cba3ffbSIngo Molnar 12631d037ca1SIrina Tirdea int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) 126486470930SIngo Molnar { 12651f16c575SPeter Zijlstra bool append_file = false; 1266b070a547SArnaldo Carvalho de Melo int output_fd = 0; 1267b070a547SArnaldo Carvalho de Melo const char *output_name = NULL; 1268b070a547SArnaldo Carvalho de Melo const struct option options[] = { 12694cabc3d1SAndi Kleen OPT_BOOLEAN('T', "transaction", &transaction_run, 12704cabc3d1SAndi Kleen "hardware transaction statistics"), 1271b070a547SArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &evsel_list, "event", 1272b070a547SArnaldo Carvalho de Melo "event selector. use 'perf list' to list available events", 1273b070a547SArnaldo Carvalho de Melo parse_events_option), 1274b070a547SArnaldo Carvalho de Melo OPT_CALLBACK(0, "filter", &evsel_list, "filter", 1275b070a547SArnaldo Carvalho de Melo "event filter", parse_filter), 1276b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &no_inherit, 1277b070a547SArnaldo Carvalho de Melo "child tasks do not inherit counters"), 1278b070a547SArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target.pid, "pid", 1279b070a547SArnaldo Carvalho de Melo "stat events on existing process id"), 1280b070a547SArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target.tid, "tid", 1281b070a547SArnaldo Carvalho de Melo "stat events on existing thread id"), 1282b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target.system_wide, 1283b070a547SArnaldo Carvalho de Melo "system-wide collection from all CPUs"), 1284b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &group, 1285b070a547SArnaldo Carvalho de Melo "put the counters into a counter group"), 1286b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"), 1287b070a547SArnaldo Carvalho de Melo OPT_INCR('v', "verbose", &verbose, 1288b070a547SArnaldo Carvalho de Melo "be more verbose (show counter open errors, etc)"), 1289b070a547SArnaldo Carvalho de Melo OPT_INTEGER('r', "repeat", &run_count, 1290a7e191c3SFrederik Deweerdt "repeat command and print average + stddev (max: 100, forever: 0)"), 1291b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('n', "null", &null_run, 1292b070a547SArnaldo Carvalho de Melo "null run - dont start any counters"), 1293b070a547SArnaldo Carvalho de Melo OPT_INCR('d', "detailed", &detailed_run, 1294b070a547SArnaldo Carvalho de Melo "detailed run - start a lot of events"), 1295b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN('S', "sync", &sync_run, 1296b070a547SArnaldo Carvalho de Melo "call sync() before starting a run"), 1297b070a547SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 1298b070a547SArnaldo Carvalho de Melo "print large numbers with thousands\' separators", 1299b070a547SArnaldo Carvalho de Melo stat__set_big_num), 1300b070a547SArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target.cpu_list, "cpu", 1301b070a547SArnaldo Carvalho de Melo "list of cpus to monitor in system-wide"), 130286ee6e18SStephane Eranian OPT_SET_UINT('A', "no-aggr", &aggr_mode, 130386ee6e18SStephane Eranian "disable CPU count aggregation", AGGR_NONE), 1304b070a547SArnaldo Carvalho de Melo OPT_STRING('x', "field-separator", &csv_sep, "separator", 1305b070a547SArnaldo Carvalho de Melo "print counts with custom separator"), 1306b070a547SArnaldo Carvalho de Melo OPT_CALLBACK('G', "cgroup", &evsel_list, "name", 1307b070a547SArnaldo Carvalho de Melo "monitor event in cgroup name only", parse_cgroups), 1308b070a547SArnaldo Carvalho de Melo OPT_STRING('o', "output", &output_name, "file", "output file name"), 1309b070a547SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), 1310b070a547SArnaldo Carvalho de Melo OPT_INTEGER(0, "log-fd", &output_fd, 1311b070a547SArnaldo Carvalho de Melo "log output to fd, instead of stderr"), 13121f16c575SPeter Zijlstra OPT_STRING(0, "pre", &pre_cmd, "command", 13131f16c575SPeter Zijlstra "command to run prior to the measured command"), 13141f16c575SPeter Zijlstra OPT_STRING(0, "post", &post_cmd, "command", 13151f16c575SPeter Zijlstra "command to run after to the measured command"), 131613370a9bSStephane Eranian OPT_UINTEGER('I', "interval-print", &interval, 131713370a9bSStephane Eranian "print counts at regular interval in ms (>= 100)"), 1318d4304958SStephane Eranian OPT_SET_UINT(0, "per-socket", &aggr_mode, 131986ee6e18SStephane Eranian "aggregate counts per processor socket", AGGR_SOCKET), 132012c08a9fSStephane Eranian OPT_SET_UINT(0, "per-core", &aggr_mode, 132112c08a9fSStephane Eranian "aggregate counts per physical processor core", AGGR_CORE), 132241191688SAndi Kleen OPT_UINTEGER('D', "delay", &initial_delay, 132341191688SAndi Kleen "ms to wait before starting measurement after program start"), 1324b070a547SArnaldo Carvalho de Melo OPT_END() 1325b070a547SArnaldo Carvalho de Melo }; 1326b070a547SArnaldo Carvalho de Melo const char * const stat_usage[] = { 1327b070a547SArnaldo Carvalho de Melo "perf stat [<options>] [<command>]", 1328b070a547SArnaldo Carvalho de Melo NULL 1329b070a547SArnaldo Carvalho de Melo }; 1330cc03c542SNamhyung Kim int status = -EINVAL, run_idx; 13314aa9015fSStephane Eranian const char *mode; 133242202dd5SIngo Molnar 13335af52b51SStephane Eranian setlocale(LC_ALL, ""); 13345af52b51SStephane Eranian 1335334fe7a3SNamhyung Kim evsel_list = perf_evlist__new(); 1336361c99a6SArnaldo Carvalho de Melo if (evsel_list == NULL) 1337361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1338361c99a6SArnaldo Carvalho de Melo 1339a0541234SAnton Blanchard argc = parse_options(argc, argv, options, stat_usage, 1340a0541234SAnton Blanchard PARSE_OPT_STOP_AT_NON_OPTION); 1341d7470b6aSStephane Eranian 13424aa9015fSStephane Eranian output = stderr; 13434aa9015fSStephane Eranian if (output_name && strcmp(output_name, "-")) 13444aa9015fSStephane Eranian output = NULL; 13454aa9015fSStephane Eranian 134656f3bae7SJim Cromie if (output_name && output_fd) { 134756f3bae7SJim Cromie fprintf(stderr, "cannot use both --output and --log-fd\n"); 1348cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "o", 1); 1349cc03c542SNamhyung Kim parse_options_usage(NULL, options, "log-fd", 0); 1350cc03c542SNamhyung Kim goto out; 135156f3bae7SJim Cromie } 1352fc3e4d07SStephane Eranian 1353fc3e4d07SStephane Eranian if (output_fd < 0) { 1354fc3e4d07SStephane Eranian fprintf(stderr, "argument to --log-fd must be a > 0\n"); 1355cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "log-fd", 0); 1356cc03c542SNamhyung Kim goto out; 1357fc3e4d07SStephane Eranian } 1358fc3e4d07SStephane Eranian 13594aa9015fSStephane Eranian if (!output) { 13604aa9015fSStephane Eranian struct timespec tm; 13614aa9015fSStephane Eranian mode = append_file ? "a" : "w"; 13624aa9015fSStephane Eranian 13634aa9015fSStephane Eranian output = fopen(output_name, mode); 13644aa9015fSStephane Eranian if (!output) { 13654aa9015fSStephane Eranian perror("failed to create output file"); 1366fceda7feSDavid Ahern return -1; 13674aa9015fSStephane Eranian } 13684aa9015fSStephane Eranian clock_gettime(CLOCK_REALTIME, &tm); 13694aa9015fSStephane Eranian fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); 1370fc3e4d07SStephane Eranian } else if (output_fd > 0) { 137156f3bae7SJim Cromie mode = append_file ? "a" : "w"; 137256f3bae7SJim Cromie output = fdopen(output_fd, mode); 137356f3bae7SJim Cromie if (!output) { 137456f3bae7SJim Cromie perror("Failed opening logfd"); 137556f3bae7SJim Cromie return -errno; 137656f3bae7SJim Cromie } 13774aa9015fSStephane Eranian } 13784aa9015fSStephane Eranian 1379d4ffd04dSJim Cromie if (csv_sep) { 1380d7470b6aSStephane Eranian csv_output = true; 1381d4ffd04dSJim Cromie if (!strcmp(csv_sep, "\\t")) 1382d4ffd04dSJim Cromie csv_sep = "\t"; 1383d4ffd04dSJim Cromie } else 1384d7470b6aSStephane Eranian csv_sep = DEFAULT_SEPARATOR; 1385d7470b6aSStephane Eranian 1386d7470b6aSStephane Eranian /* 1387d7470b6aSStephane Eranian * let the spreadsheet do the pretty-printing 1388d7470b6aSStephane Eranian */ 1389d7470b6aSStephane Eranian if (csv_output) { 139061a9f324SJim Cromie /* User explicitly passed -B? */ 1391d7470b6aSStephane Eranian if (big_num_opt == 1) { 1392d7470b6aSStephane Eranian fprintf(stderr, "-B option not supported with -x\n"); 1393cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "B", 1); 1394cc03c542SNamhyung Kim parse_options_usage(NULL, options, "x", 1); 1395cc03c542SNamhyung Kim goto out; 1396d7470b6aSStephane Eranian } else /* Nope, so disable big number formatting */ 1397d7470b6aSStephane Eranian big_num = false; 1398d7470b6aSStephane Eranian } else if (big_num_opt == 0) /* User passed --no-big-num */ 1399d7470b6aSStephane Eranian big_num = false; 1400d7470b6aSStephane Eranian 1401602ad878SArnaldo Carvalho de Melo if (!argc && target__none(&target)) 140286470930SIngo Molnar usage_with_options(stat_usage, options); 1403ac3063bdSDavid Ahern 1404a7e191c3SFrederik Deweerdt if (run_count < 0) { 1405cc03c542SNamhyung Kim pr_err("Run count must be a positive number\n"); 1406cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "r", 1); 1407cc03c542SNamhyung Kim goto out; 1408a7e191c3SFrederik Deweerdt } else if (run_count == 0) { 1409a7e191c3SFrederik Deweerdt forever = true; 1410a7e191c3SFrederik Deweerdt run_count = 1; 1411a7e191c3SFrederik Deweerdt } 141286470930SIngo Molnar 1413023695d9SStephane Eranian /* no_aggr, cgroup are for system-wide only */ 1414602ad878SArnaldo Carvalho de Melo if ((aggr_mode != AGGR_GLOBAL || nr_cgroups) && 1415602ad878SArnaldo Carvalho de Melo !target__has_cpu(&target)) { 1416023695d9SStephane Eranian fprintf(stderr, "both cgroup and no-aggregation " 1417023695d9SStephane Eranian "modes only available in system-wide mode\n"); 1418023695d9SStephane Eranian 1419cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "G", 1); 1420cc03c542SNamhyung Kim parse_options_usage(NULL, options, "A", 1); 1421cc03c542SNamhyung Kim parse_options_usage(NULL, options, "a", 1); 1422cc03c542SNamhyung Kim goto out; 1423d7e7a451SStephane Eranian } 1424d7e7a451SStephane Eranian 14252cba3ffbSIngo Molnar if (add_default_attributes()) 1426c6264defSIngo Molnar goto out; 142786470930SIngo Molnar 1428602ad878SArnaldo Carvalho de Melo target__validate(&target); 14295c98d466SArnaldo Carvalho de Melo 143077a6f014SNamhyung Kim if (perf_evlist__create_maps(evsel_list, &target) < 0) { 1431602ad878SArnaldo Carvalho de Melo if (target__has_task(&target)) { 14325c98d466SArnaldo Carvalho de Melo pr_err("Problems finding threads of monitor\n"); 1433cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "p", 1); 1434cc03c542SNamhyung Kim parse_options_usage(NULL, options, "t", 1); 1435602ad878SArnaldo Carvalho de Melo } else if (target__has_cpu(&target)) { 143660d567e2SArnaldo Carvalho de Melo perror("failed to parse CPUs map"); 1437cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "C", 1); 1438cc03c542SNamhyung Kim parse_options_usage(NULL, options, "a", 1); 1439cc03c542SNamhyung Kim } 1440cc03c542SNamhyung Kim goto out; 144160d567e2SArnaldo Carvalho de Melo } 144213370a9bSStephane Eranian if (interval && interval < 100) { 144313370a9bSStephane Eranian pr_err("print interval must be >= 100ms\n"); 1444cc03c542SNamhyung Kim parse_options_usage(stat_usage, options, "I", 1); 144503ad9747SArnaldo Carvalho de Melo goto out; 144613370a9bSStephane Eranian } 1447c45c6ea2SStephane Eranian 1448d134ffb9SArnaldo Carvalho de Melo if (perf_evlist__alloc_stats(evsel_list, interval)) 144903ad9747SArnaldo Carvalho de Melo goto out; 1450d6d901c2SZhang, Yanmin 145186ee6e18SStephane Eranian if (perf_stat_init_aggr_mode()) 145203ad9747SArnaldo Carvalho de Melo goto out; 145386ee6e18SStephane Eranian 145486470930SIngo Molnar /* 145586470930SIngo Molnar * We dont want to block the signals - that would cause 145686470930SIngo Molnar * child tasks to inherit that and Ctrl-C would not work. 145786470930SIngo Molnar * What we want is for Ctrl-C to work in the exec()-ed 145886470930SIngo Molnar * task, but being ignored by perf stat itself: 145986470930SIngo Molnar */ 1460f7b7c26eSPeter Zijlstra atexit(sig_atexit); 1461a7e191c3SFrederik Deweerdt if (!forever) 146286470930SIngo Molnar signal(SIGINT, skip_signal); 146313370a9bSStephane Eranian signal(SIGCHLD, skip_signal); 146486470930SIngo Molnar signal(SIGALRM, skip_signal); 146586470930SIngo Molnar signal(SIGABRT, skip_signal); 146686470930SIngo Molnar 146742202dd5SIngo Molnar status = 0; 1468a7e191c3SFrederik Deweerdt for (run_idx = 0; forever || run_idx < run_count; run_idx++) { 146942202dd5SIngo Molnar if (run_count != 1 && verbose) 14704aa9015fSStephane Eranian fprintf(output, "[ perf stat: executing run #%d ... ]\n", 14714aa9015fSStephane Eranian run_idx + 1); 1472f9cef0a9SIngo Molnar 147342202dd5SIngo Molnar status = run_perf_stat(argc, argv); 1474a7e191c3SFrederik Deweerdt if (forever && status != -1) { 1475a7e191c3SFrederik Deweerdt print_stat(argc, argv); 1476d134ffb9SArnaldo Carvalho de Melo perf_stat__reset_stats(evsel_list); 1477a7e191c3SFrederik Deweerdt } 147842202dd5SIngo Molnar } 147942202dd5SIngo Molnar 1480a7e191c3SFrederik Deweerdt if (!forever && status != -1 && !interval) 148142202dd5SIngo Molnar print_stat(argc, argv); 1482d134ffb9SArnaldo Carvalho de Melo 1483d134ffb9SArnaldo Carvalho de Melo perf_evlist__free_stats(evsel_list); 14840015e2e1SArnaldo Carvalho de Melo out: 14850015e2e1SArnaldo Carvalho de Melo perf_evlist__delete(evsel_list); 148642202dd5SIngo Molnar return status; 148786470930SIngo Molnar } 1488