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Ingo Molnarddcacfa2009-04-20 15:37:32 +02001/*
Ingo Molnarbf9e1872009-06-02 23:37:05 +02002 * builtin-stat.c
3 *
4 * Builtin stat command: Give a precise performance counters summary
5 * overview about any workload, CPU or specific PID.
6 *
7 * Sample output:
Ingo Molnarddcacfa2009-04-20 15:37:32 +02008
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02009 $ perf stat ./hackbench 10
Ingo Molnarddcacfa2009-04-20 15:37:32 +020010
Ingo Molnar2cba3ff2011-05-19 13:30:56 +020011 Time: 0.118
Ingo Molnarddcacfa2009-04-20 15:37:32 +020012
Ingo Molnar2cba3ff2011-05-19 13:30:56 +020013 Performance counter stats for './hackbench 10':
Ingo Molnarddcacfa2009-04-20 15:37:32 +020014
Ingo Molnar2cba3ff2011-05-19 13:30:56 +020015 1708.761321 task-clock # 11.037 CPUs utilized
16 41,190 context-switches # 0.024 M/sec
17 6,735 CPU-migrations # 0.004 M/sec
18 17,318 page-faults # 0.010 M/sec
19 5,205,202,243 cycles # 3.046 GHz
20 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle
21 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle
22 2,603,501,247 instructions # 0.50 insns per cycle
23 # 1.48 stalled cycles per insn
24 484,357,498 branches # 283.455 M/sec
25 6,388,934 branch-misses # 1.32% of all branches
26
27 0.154822978 seconds time elapsed
Ingo Molnarddcacfa2009-04-20 15:37:32 +020028
Ingo Molnar52425192009-05-26 09:17:18 +020029 *
Ingo Molnar2cba3ff2011-05-19 13:30:56 +020030 * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
Ingo Molnar52425192009-05-26 09:17:18 +020031 *
32 * Improvements and fixes by:
33 *
34 * Arjan van de Ven <arjan@linux.intel.com>
35 * Yanmin Zhang <yanmin.zhang@intel.com>
36 * Wu Fengguang <fengguang.wu@intel.com>
37 * Mike Galbraith <efault@gmx.de>
38 * Paul Mackerras <paulus@samba.org>
Jaswinder Singh Rajput6e750a8f2009-06-27 03:02:07 +053039 * Jaswinder Singh Rajput <jaswinder@kernel.org>
Ingo Molnar52425192009-05-26 09:17:18 +020040 *
41 * Released under the GPL v2. (and only v2, not any later version)
Ingo Molnarddcacfa2009-04-20 15:37:32 +020042 */
43
Peter Zijlstra1a482f32009-05-23 18:28:58 +020044#include "perf.h"
Ingo Molnar16f762a2009-05-27 09:10:38 +020045#include "builtin.h"
Arnaldo Carvalho de Melof14d5702014-10-17 12:17:40 -030046#include "util/cgroup.h"
Ingo Molnar148be2c2009-04-27 08:02:14 +020047#include "util/util.h"
Ingo Molnar52425192009-05-26 09:17:18 +020048#include "util/parse-options.h"
49#include "util/parse-events.h"
Andi Kleen4cabc3d2013-08-21 16:47:26 -070050#include "util/pmu.h"
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020051#include "util/event.h"
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020052#include "util/evlist.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020053#include "util/evsel.h"
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020054#include "util/debug.h"
Ingo Molnara5d243d2011-04-27 05:39:24 +020055#include "util/color.h"
Xiao Guangrong0007ece2012-09-17 16:31:14 +080056#include "util/stat.h"
Liming Wang60666c62009-12-31 16:05:50 +080057#include "util/header.h"
Paul Mackerrasa12b51c2010-03-10 20:36:09 +110058#include "util/cpumap.h"
Zhang, Yanmind6d901c2010-03-18 11:36:05 -030059#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020060#include "util/thread_map.h"
Jiri Olsad8095602015-08-07 12:51:03 +020061#include "util/counts.h"
Ingo Molnarddcacfa2009-04-20 15:37:32 +020062
Peter Zijlstra1f16c572012-10-23 13:40:14 +020063#include <stdlib.h>
Ingo Molnarddcacfa2009-04-20 15:37:32 +020064#include <sys/prctl.h>
Stephane Eranian5af52b52010-05-18 15:00:01 +020065#include <locale.h>
Peter Zijlstra16c8a102009-05-05 17:50:27 +020066
Stephane Eraniand7470b62010-12-01 18:49:05 +020067#define DEFAULT_SEPARATOR " "
David Ahern2cee77c2011-05-30 08:55:59 -060068#define CNTR_NOT_SUPPORTED "<not supported>"
69#define CNTR_NOT_COUNTED "<not counted>"
Stephane Eraniand7470b62010-12-01 18:49:05 +020070
Jiri Olsad4f63a42015-06-26 11:29:26 +020071static void print_counters(struct timespec *ts, int argc, const char **argv);
Stephane Eranian13370a92013-01-29 12:47:44 +010072
Andi Kleen4cabc3d2013-08-21 16:47:26 -070073/* Default events used for perf stat -T */
Jiri Olsaa4547422015-06-03 16:25:53 +020074static const char *transaction_attrs = {
75 "task-clock,"
Andi Kleen4cabc3d2013-08-21 16:47:26 -070076 "{"
77 "instructions,"
78 "cycles,"
79 "cpu/cycles-t/,"
80 "cpu/tx-start/,"
81 "cpu/el-start/,"
82 "cpu/cycles-ct/"
83 "}"
84};
85
86/* More limited version when the CPU does not have all events. */
Jiri Olsaa4547422015-06-03 16:25:53 +020087static const char * transaction_limited_attrs = {
88 "task-clock,"
Andi Kleen4cabc3d2013-08-21 16:47:26 -070089 "{"
90 "instructions,"
91 "cycles,"
92 "cpu/cycles-t/,"
93 "cpu/tx-start/"
94 "}"
95};
96
Robert Richter666e6d42012-04-05 18:26:27 +020097static struct perf_evlist *evsel_list;
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020098
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -030099static struct target target = {
Namhyung Kim77a6f012012-05-07 14:09:04 +0900100 .uid = UINT_MAX,
101};
Jaswinder Singh Rajput3d632592009-06-24 18:19:34 +0530102
Jiri Olsa1e5a2932015-10-25 15:51:18 +0100103typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu);
104
Jaswinder Singh Rajput3d632592009-06-24 18:19:34 +0530105static int run_count = 1;
Stephane Eranian2e6cdf92010-05-12 10:40:01 +0200106static bool no_inherit = false;
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200107static volatile pid_t child_pid = -1;
Ian Munsiec0555642010-04-13 18:37:33 +1000108static bool null_run = false;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +0200109static int detailed_run = 0;
Andi Kleen4cabc3d2013-08-21 16:47:26 -0700110static bool transaction_run;
Arnaldo Carvalho de Melo201e0b02010-12-01 17:53:27 -0200111static bool big_num = true;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200112static int big_num_opt = -1;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200113static const char *csv_sep = NULL;
114static bool csv_output = false;
Lin Ming43bece72011-08-17 18:42:07 +0800115static bool group = false;
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200116static const char *pre_cmd = NULL;
117static const char *post_cmd = NULL;
118static bool sync_run = false;
Andi Kleen41191682013-08-02 17:41:11 -0700119static unsigned int initial_delay = 0;
Stephane Eranian410136f2013-11-12 17:58:49 +0100120static unsigned int unit_width = 4; /* strlen("unit") */
Frederik Deweerdta7e191c2013-03-01 13:02:27 -0500121static bool forever = false;
Stephane Eranian13370a92013-01-29 12:47:44 +0100122static struct timespec ref_time;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100123static struct cpu_map *aggr_map;
Jiri Olsa1e5a2932015-10-25 15:51:18 +0100124static aggr_get_id_t aggr_get_id;
Stephane Eranian5af52b52010-05-18 15:00:01 +0200125
Liming Wang60666c62009-12-31 16:05:50 +0800126static volatile int done = 0;
127
Jiri Olsa421a50f2015-07-21 14:31:22 +0200128static struct perf_stat_config stat_config = {
129 .aggr_mode = AGGR_GLOBAL,
Jiri Olsa711a5722015-07-21 14:31:23 +0200130 .scale = true,
Jiri Olsa421a50f2015-07-21 14:31:22 +0200131};
132
Stephane Eranian13370a92013-01-29 12:47:44 +0100133static inline void diff_timespec(struct timespec *r, struct timespec *a,
134 struct timespec *b)
135{
136 r->tv_sec = a->tv_sec - b->tv_sec;
137 if (a->tv_nsec < b->tv_nsec) {
138 r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec;
139 r->tv_sec--;
140 } else {
141 r->tv_nsec = a->tv_nsec - b->tv_nsec ;
142 }
143}
144
Jiri Olsa254ecbc2015-06-26 11:29:13 +0200145static void perf_stat__reset_stats(void)
146{
147 perf_evlist__reset_stats(evsel_list);
Jiri Olsaf87027b2015-06-03 16:25:59 +0200148 perf_stat__reset_shadow_stats();
Jiri Olsa1eda3b22015-06-03 16:25:55 +0200149}
150
Jiri Olsacac21422012-11-12 18:34:00 +0100151static int create_perf_stat_counter(struct perf_evsel *evsel)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200152{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200153 struct perf_event_attr *attr = &evsel->attr;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200154
Jiri Olsa711a5722015-07-21 14:31:23 +0200155 if (stat_config.scale)
Ingo Molnara21ca2c2009-06-06 09:58:57 +0200156 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
157 PERF_FORMAT_TOTAL_TIME_RUNNING;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200158
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200159 attr->inherit = !no_inherit;
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300160
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300161 if (target__has_cpu(&target))
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300162 return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
Stephane Eranian5622c072012-04-27 14:45:38 +0200163
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300164 if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200165 attr->disabled = 1;
Andi Kleen41191682013-08-02 17:41:11 -0700166 if (!initial_delay)
167 attr->enable_on_exec = 1;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200168 }
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300169
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300170 return perf_evsel__open_per_thread(evsel, evsel_list->threads);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200171}
172
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200173/*
174 * Does the counter have nsecs as a unit?
175 */
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200176static inline int nsec_counter(struct perf_evsel *evsel)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200177{
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200178 if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
179 perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200180 return 1;
181
182 return 0;
183}
184
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200185/*
186 * Read out the results of a single counter:
187 * do not aggregate counts across CPUs in system-wide mode
188 */
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200189static int read_counter(struct perf_evsel *counter)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200190{
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100191 int nthreads = thread_map__nr(evsel_list->threads);
192 int ncpus = perf_evsel__nr_cpus(counter);
193 int cpu, thread;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200194
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000195 if (!counter->supported)
196 return -ENOENT;
197
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100198 if (counter->system_wide)
199 nthreads = 1;
200
201 for (thread = 0; thread < nthreads; thread++) {
202 for (cpu = 0; cpu < ncpus; cpu++) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200203 struct perf_counts_values *count;
204
205 count = perf_counts(counter->counts, cpu, thread);
206 if (perf_evsel__read(counter, cpu, thread, count))
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100207 return -1;
208 }
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200209 }
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200210
211 return 0;
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200212}
213
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200214static void read_counters(bool close_counters)
Jiri Olsa106a94a2015-06-26 11:29:19 +0200215{
216 struct perf_evsel *counter;
Jiri Olsa106a94a2015-06-26 11:29:19 +0200217
218 evlist__for_each(evsel_list, counter) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200219 if (read_counter(counter))
Andi Kleen245bad82015-09-01 15:52:46 -0700220 pr_debug("failed to read counter %s\n", counter->name);
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200221
Jiri Olsaf80010e2015-07-21 14:31:27 +0200222 if (perf_stat_process_counter(&stat_config, counter))
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200223 pr_warning("failed to process counter %s\n", counter->name);
Jiri Olsa106a94a2015-06-26 11:29:19 +0200224
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200225 if (close_counters) {
Jiri Olsa106a94a2015-06-26 11:29:19 +0200226 perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
227 thread_map__nr(evsel_list->threads));
228 }
229 }
230}
231
Jiri Olsaba411a92015-06-26 11:29:24 +0200232static void process_interval(void)
Stephane Eranian13370a92013-01-29 12:47:44 +0100233{
Stephane Eranian13370a92013-01-29 12:47:44 +0100234 struct timespec ts, rs;
Stephane Eranian13370a92013-01-29 12:47:44 +0100235
Jiri Olsa106a94a2015-06-26 11:29:19 +0200236 read_counters(false);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100237
Stephane Eranian13370a92013-01-29 12:47:44 +0100238 clock_gettime(CLOCK_MONOTONIC, &ts);
239 diff_timespec(&rs, &ts, &ref_time);
Stephane Eranian13370a92013-01-29 12:47:44 +0100240
Jiri Olsad4f63a42015-06-26 11:29:26 +0200241 print_counters(&rs, 0, NULL);
Stephane Eranian13370a92013-01-29 12:47:44 +0100242}
243
Andi Kleen41191682013-08-02 17:41:11 -0700244static void handle_initial_delay(void)
245{
246 struct perf_evsel *counter;
247
248 if (initial_delay) {
249 const int ncpus = cpu_map__nr(evsel_list->cpus),
250 nthreads = thread_map__nr(evsel_list->threads);
251
252 usleep(initial_delay * 1000);
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300253 evlist__for_each(evsel_list, counter)
Andi Kleen41191682013-08-02 17:41:11 -0700254 perf_evsel__enable(counter, ncpus, nthreads);
255 }
256}
257
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300258static volatile int workload_exec_errno;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300259
260/*
261 * perf_evlist__prepare_workload will send a SIGUSR1
262 * if the fork fails, since we asked by setting its
263 * want_signal to true.
264 */
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300265static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
266 void *ucontext __maybe_unused)
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300267{
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300268 workload_exec_errno = info->si_value.sival_int;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300269}
270
Namhyung Kimacf28922013-03-11 16:43:18 +0900271static int __run_perf_stat(int argc, const char **argv)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200272{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200273 int interval = stat_config.interval;
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300274 char msg[512];
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200275 unsigned long long t0, t1;
Jiri Olsacac21422012-11-12 18:34:00 +0100276 struct perf_evsel *counter;
Stephane Eranian13370a92013-01-29 12:47:44 +0100277 struct timespec ts;
Stephane Eranian410136f2013-11-12 17:58:49 +0100278 size_t l;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200279 int status = 0;
Zhang, Yanmin6be28502010-03-18 11:36:03 -0300280 const bool forks = (argc > 0);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200281
Stephane Eranian13370a92013-01-29 12:47:44 +0100282 if (interval) {
283 ts.tv_sec = interval / 1000;
284 ts.tv_nsec = (interval % 1000) * 1000000;
285 } else {
286 ts.tv_sec = 1;
287 ts.tv_nsec = 0;
288 }
289
Liming Wang60666c62009-12-31 16:05:50 +0800290 if (forks) {
Arnaldo Carvalho de Melo735f7e02014-01-03 14:56:49 -0300291 if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
292 workload_exec_failed_signal) < 0) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900293 perror("failed to prepare workload");
294 return -1;
Liming Wang60666c62009-12-31 16:05:50 +0800295 }
Namhyung Kimd20a47e2013-09-30 18:01:11 +0900296 child_pid = evsel_list->workload.pid;
Paul Mackerras051ae7f2009-06-29 21:13:21 +1000297 }
298
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200299 if (group)
Arnaldo Carvalho de Melo63dab222012-08-14 16:35:48 -0300300 perf_evlist__set_leader(evsel_list);
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200301
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300302 evlist__for_each(evsel_list, counter) {
Jiri Olsacac21422012-11-12 18:34:00 +0100303 if (create_perf_stat_counter(counter) < 0) {
David Ahern979987a2012-05-08 09:29:16 -0600304 /*
305 * PPC returns ENXIO for HW counters until 2.6.37
306 * (behavior changed with commit b0a873e).
307 */
Anton Blanchard38f6ae12011-12-02 09:38:33 +1100308 if (errno == EINVAL || errno == ENOSYS ||
David Ahern979987a2012-05-08 09:29:16 -0600309 errno == ENOENT || errno == EOPNOTSUPP ||
310 errno == ENXIO) {
David Ahernc63ca0c2011-04-29 16:04:15 -0600311 if (verbose)
312 ui__warning("%s event is not supported by the kernel.\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300313 perf_evsel__name(counter));
David Ahern2cee77c2011-05-30 08:55:59 -0600314 counter->supported = false;
Kan Liangcb5ef602015-06-11 02:32:40 -0400315
316 if ((counter->leader != counter) ||
317 !(counter->leader->nr_members > 1))
318 continue;
David Ahernc63ca0c2011-04-29 16:04:15 -0600319 }
Ingo Molnarede70292011-04-28 08:48:42 +0200320
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300321 perf_evsel__open_strerror(counter, &target,
322 errno, msg, sizeof(msg));
323 ui__error("%s\n", msg);
324
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200325 if (child_pid != -1)
326 kill(child_pid, SIGTERM);
David Ahernfceda7f2012-08-26 12:24:44 -0600327
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200328 return -1;
329 }
David Ahern2cee77c2011-05-30 08:55:59 -0600330 counter->supported = true;
Stephane Eranian410136f2013-11-12 17:58:49 +0100331
332 l = strlen(counter->unit);
333 if (l > unit_width)
334 unit_width = l;
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300335 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200336
Arnaldo Carvalho de Melo23d4aad2015-03-24 19:23:47 -0300337 if (perf_evlist__apply_filters(evsel_list, &counter)) {
338 error("failed to set filter \"%s\" on event %s with %d (%s)\n",
339 counter->filter, perf_evsel__name(counter), errno,
Masami Hiramatsu759e6122014-08-14 02:22:55 +0000340 strerror_r(errno, msg, sizeof(msg)));
Frederic Weisbeckercfd748a2011-03-14 16:40:30 +0100341 return -1;
342 }
343
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200344 /*
345 * Enable counters and exec the command:
346 */
347 t0 = rdclock();
Stephane Eranian13370a92013-01-29 12:47:44 +0100348 clock_gettime(CLOCK_MONOTONIC, &ref_time);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200349
Liming Wang60666c62009-12-31 16:05:50 +0800350 if (forks) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900351 perf_evlist__start_workload(evsel_list);
Andi Kleen41191682013-08-02 17:41:11 -0700352 handle_initial_delay();
Namhyung Kimacf28922013-03-11 16:43:18 +0900353
Stephane Eranian13370a92013-01-29 12:47:44 +0100354 if (interval) {
355 while (!waitpid(child_pid, &status, WNOHANG)) {
356 nanosleep(&ts, NULL);
Jiri Olsaba411a92015-06-26 11:29:24 +0200357 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100358 }
359 }
Liming Wang60666c62009-12-31 16:05:50 +0800360 wait(&status);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300361
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300362 if (workload_exec_errno) {
363 const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
364 pr_err("Workload failed: %s\n", emsg);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300365 return -1;
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300366 }
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300367
Andi Kleen33e49ea2011-09-15 14:31:40 -0700368 if (WIFSIGNALED(status))
369 psignal(WTERMSIG(status), argv[0]);
Liming Wang60666c62009-12-31 16:05:50 +0800370 } else {
Andi Kleen41191682013-08-02 17:41:11 -0700371 handle_initial_delay();
Stephane Eranian13370a92013-01-29 12:47:44 +0100372 while (!done) {
373 nanosleep(&ts, NULL);
374 if (interval)
Jiri Olsaba411a92015-06-26 11:29:24 +0200375 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100376 }
Liming Wang60666c62009-12-31 16:05:50 +0800377 }
Ingo Molnar44db76c2009-06-03 19:36:07 +0200378
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200379 t1 = rdclock();
380
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200381 update_stats(&walltime_nsecs_stats, t1 - t0);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200382
Jiri Olsa106a94a2015-06-26 11:29:19 +0200383 read_counters(true);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200384
Ingo Molnar42202dd2009-06-13 14:57:28 +0200385 return WEXITSTATUS(status);
386}
387
Arnaldo Carvalho de Melo41cde472014-01-03 17:34:42 -0300388static int run_perf_stat(int argc, const char **argv)
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200389{
390 int ret;
391
392 if (pre_cmd) {
393 ret = system(pre_cmd);
394 if (ret)
395 return ret;
396 }
397
398 if (sync_run)
399 sync();
400
401 ret = __run_perf_stat(argc, argv);
402 if (ret)
403 return ret;
404
405 if (post_cmd) {
406 ret = system(post_cmd);
407 if (ret)
408 return ret;
409 }
410
411 return ret;
412}
413
Andi Kleend73515c2015-03-11 07:16:27 -0700414static void print_running(u64 run, u64 ena)
415{
416 if (csv_output) {
Jiri Olsa58215222015-07-21 14:31:24 +0200417 fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f",
Andi Kleend73515c2015-03-11 07:16:27 -0700418 csv_sep,
419 run,
420 csv_sep,
421 ena ? 100.0 * run / ena : 100.0);
422 } else if (run != ena) {
Jiri Olsa58215222015-07-21 14:31:24 +0200423 fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena);
Andi Kleend73515c2015-03-11 07:16:27 -0700424 }
425}
426
Ingo Molnarf99844c2011-04-27 05:35:39 +0200427static void print_noise_pct(double total, double avg)
428{
Xiao Guangrong0007ece2012-09-17 16:31:14 +0800429 double pct = rel_stddev_stats(total, avg);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200430
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700431 if (csv_output)
Jiri Olsa58215222015-07-21 14:31:24 +0200432 fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct);
Jim Cromiea1bca6c2011-09-07 17:14:02 -0600433 else if (pct)
Jiri Olsa58215222015-07-21 14:31:24 +0200434 fprintf(stat_config.output, " ( +-%6.2f%% )", pct);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200435}
436
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200437static void print_noise(struct perf_evsel *evsel, double avg)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200438{
Jiri Olsa581cc8a2015-10-16 12:41:03 +0200439 struct perf_stat_evsel *ps;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200440
Peter Zijlstra849abde2009-09-04 18:23:38 +0200441 if (run_count == 1)
442 return;
443
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200444 ps = evsel->priv;
Ingo Molnarf99844c2011-04-27 05:35:39 +0200445 print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200446}
447
Stephane Eranian12c08a92013-02-14 13:57:29 +0100448static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200449{
Jiri Olsa421a50f2015-07-21 14:31:22 +0200450 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100451 case AGGR_CORE:
Jiri Olsa58215222015-07-21 14:31:24 +0200452 fprintf(stat_config.output, "S%d-C%*d%s%*d%s",
Stephane Eranian12c08a92013-02-14 13:57:29 +0100453 cpu_map__id_to_socket(id),
454 csv_output ? 0 : -8,
455 cpu_map__id_to_cpu(id),
456 csv_sep,
457 csv_output ? 0 : 4,
458 nr,
459 csv_sep);
460 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100461 case AGGR_SOCKET:
Jiri Olsa58215222015-07-21 14:31:24 +0200462 fprintf(stat_config.output, "S%*d%s%*d%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100463 csv_output ? 0 : -5,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100464 id,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100465 csv_sep,
466 csv_output ? 0 : 4,
467 nr,
468 csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100469 break;
470 case AGGR_NONE:
Jiri Olsa58215222015-07-21 14:31:24 +0200471 fprintf(stat_config.output, "CPU%*d%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200472 csv_output ? 0 : -4,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100473 perf_evsel__cpus(evsel)->map[id], csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100474 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200475 case AGGR_THREAD:
Jiri Olsa58215222015-07-21 14:31:24 +0200476 fprintf(stat_config.output, "%*s-%*d%s",
Jiri Olsa32b8af82015-06-26 11:29:27 +0200477 csv_output ? 0 : 16,
478 thread_map__comm(evsel->threads, id),
479 csv_output ? 0 : -8,
480 thread_map__pid(evsel->threads, id),
481 csv_sep);
482 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100483 case AGGR_GLOBAL:
Jiri Olsa208df992015-10-16 12:41:04 +0200484 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100485 default:
486 break;
487 }
488}
Stephane Eraniand7470b62010-12-01 18:49:05 +0200489
Andi Kleenda88c7f2014-09-24 13:50:46 -0700490static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100491{
Jiri Olsa58215222015-07-21 14:31:24 +0200492 FILE *output = stat_config.output;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100493 double msecs = avg / 1e6;
Stephane Eranian410136f2013-11-12 17:58:49 +0100494 const char *fmt_v, *fmt_n;
David Ahern4bbe5a62013-09-28 14:28:00 -0600495 char name[25];
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100496
Stephane Eranian410136f2013-11-12 17:58:49 +0100497 fmt_v = csv_output ? "%.6f%s" : "%18.6f%s";
498 fmt_n = csv_output ? "%s" : "%-25s";
499
Andi Kleenda88c7f2014-09-24 13:50:46 -0700500 aggr_printout(evsel, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100501
David Ahern4bbe5a62013-09-28 14:28:00 -0600502 scnprintf(name, sizeof(name), "%s%s",
503 perf_evsel__name(evsel), csv_output ? "" : " (msec)");
Stephane Eranian410136f2013-11-12 17:58:49 +0100504
505 fprintf(output, fmt_v, msecs, csv_sep);
506
507 if (csv_output)
508 fprintf(output, "%s%s", evsel->unit, csv_sep);
509 else
510 fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep);
511
512 fprintf(output, fmt_n, name);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200513
Stephane Eranian023695d2011-02-14 11:20:01 +0200514 if (evsel->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200515 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200516
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200517 if (csv_output || stat_config.interval)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200518 return;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200519
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200520 if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Stephane Eranian4aa90152011-08-15 22:22:33 +0200521 fprintf(output, " # %8.3f CPUs utilized ",
522 avg / avg_stats(&walltime_nsecs_stats));
Namhyung Kim9dac6a22012-02-06 16:44:45 +0900523 else
524 fprintf(output, " ");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200525}
526
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200527static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
528{
Jiri Olsa58215222015-07-21 14:31:24 +0200529 FILE *output = stat_config.output;
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200530 double sc = evsel->scale;
531 const char *fmt;
532 int cpu = cpu_map__id_to_cpu(id);
533
534 if (csv_output) {
535 fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
536 } else {
537 if (big_num)
538 fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
539 else
540 fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
541 }
542
543 aggr_printout(evsel, id, nr);
544
Jiri Olsa421a50f2015-07-21 14:31:22 +0200545 if (stat_config.aggr_mode == AGGR_GLOBAL)
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200546 cpu = 0;
547
548 fprintf(output, fmt, avg, csv_sep);
549
550 if (evsel->unit)
551 fprintf(output, "%-*s%s",
552 csv_output ? 0 : unit_width,
553 evsel->unit, csv_sep);
554
555 fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel));
556
557 if (evsel->cgrp)
558 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
559
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200560 if (csv_output || stat_config.interval)
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200561 return;
562
Jiri Olsa421a50f2015-07-21 14:31:22 +0200563 perf_stat__print_shadow_stats(output, evsel, avg, cpu,
564 stat_config.aggr_mode);
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200565}
566
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100567static void print_aggr(char *prefix)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100568{
Jiri Olsa58215222015-07-21 14:31:24 +0200569 FILE *output = stat_config.output;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100570 struct perf_evsel *counter;
Kan Liang601083c2015-07-02 03:08:43 -0400571 int cpu, s, s2, id, nr;
Stephane Eranian410136f2013-11-12 17:58:49 +0100572 double uval;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100573 u64 ena, run, val;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100574
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100575 if (!(aggr_map || aggr_get_id))
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100576 return;
577
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100578 for (s = 0; s < aggr_map->nr; s++) {
579 id = aggr_map->map[s];
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300580 evlist__for_each(evsel_list, counter) {
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100581 val = ena = run = 0;
582 nr = 0;
583 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Kan Liang601083c2015-07-02 03:08:43 -0400584 s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100585 if (s2 != id)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100586 continue;
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200587 val += perf_counts(counter->counts, cpu, 0)->val;
588 ena += perf_counts(counter->counts, cpu, 0)->ena;
589 run += perf_counts(counter->counts, cpu, 0)->run;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100590 nr++;
591 }
592 if (prefix)
593 fprintf(output, "%s", prefix);
594
595 if (run == 0 || ena == 0) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200596 aggr_printout(counter, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100597
Stephane Eranian410136f2013-11-12 17:58:49 +0100598 fprintf(output, "%*s%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100599 csv_output ? 0 : 18,
600 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100601 csv_sep);
602
603 fprintf(output, "%-*s%s",
604 csv_output ? 0 : unit_width,
605 counter->unit, csv_sep);
606
607 fprintf(output, "%*s",
608 csv_output ? 0 : -25,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100609 perf_evsel__name(counter));
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100610
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100611 if (counter->cgrp)
612 fprintf(output, "%s%s",
613 csv_sep, counter->cgrp->name);
614
Andi Kleend73515c2015-03-11 07:16:27 -0700615 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100616 fputc('\n', output);
617 continue;
618 }
Stephane Eranian410136f2013-11-12 17:58:49 +0100619 uval = val * counter->scale;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100620
621 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100622 nsec_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100623 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100624 abs_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100625
Andi Kleend73515c2015-03-11 07:16:27 -0700626 if (!csv_output)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100627 print_noise(counter, 1.0);
628
Andi Kleend73515c2015-03-11 07:16:27 -0700629 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100630 fputc('\n', output);
631 }
632 }
633}
634
Jiri Olsa32b8af82015-06-26 11:29:27 +0200635static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
636{
Jiri Olsa58215222015-07-21 14:31:24 +0200637 FILE *output = stat_config.output;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200638 int nthreads = thread_map__nr(counter->threads);
639 int ncpus = cpu_map__nr(counter->cpus);
640 int cpu, thread;
641 double uval;
642
643 for (thread = 0; thread < nthreads; thread++) {
644 u64 ena = 0, run = 0, val = 0;
645
646 for (cpu = 0; cpu < ncpus; cpu++) {
647 val += perf_counts(counter->counts, cpu, thread)->val;
648 ena += perf_counts(counter->counts, cpu, thread)->ena;
649 run += perf_counts(counter->counts, cpu, thread)->run;
650 }
651
652 if (prefix)
653 fprintf(output, "%s", prefix);
654
655 uval = val * counter->scale;
656
657 if (nsec_counter(counter))
658 nsec_printout(thread, 0, counter, uval);
659 else
660 abs_printout(thread, 0, counter, uval);
661
662 if (!csv_output)
663 print_noise(counter, 1.0);
664
665 print_running(run, ena);
666 fputc('\n', output);
667 }
668}
669
Ingo Molnar42202dd2009-06-13 14:57:28 +0200670/*
671 * Print out the results of a single counter:
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200672 * aggregated counts in system-wide mode
Ingo Molnar42202dd2009-06-13 14:57:28 +0200673 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100674static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200675{
Jiri Olsa58215222015-07-21 14:31:24 +0200676 FILE *output = stat_config.output;
Jiri Olsa581cc8a2015-10-16 12:41:03 +0200677 struct perf_stat_evsel *ps = counter->priv;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200678 double avg = avg_stats(&ps->res_stats[0]);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200679 int scaled = counter->counts->scaled;
Stephane Eranian410136f2013-11-12 17:58:49 +0100680 double uval;
Andi Kleend73515c2015-03-11 07:16:27 -0700681 double avg_enabled, avg_running;
682
683 avg_enabled = avg_stats(&ps->res_stats[1]);
684 avg_running = avg_stats(&ps->res_stats[2]);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200685
Stephane Eranian13370a92013-01-29 12:47:44 +0100686 if (prefix)
687 fprintf(output, "%s", prefix);
688
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000689 if (scaled == -1 || !counter->supported) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100690 fprintf(output, "%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200691 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600692 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100693 csv_sep);
694 fprintf(output, "%-*s%s",
695 csv_output ? 0 : unit_width,
696 counter->unit, csv_sep);
697 fprintf(output, "%*s",
698 csv_output ? 0 : -25,
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300699 perf_evsel__name(counter));
Stephane Eranian023695d2011-02-14 11:20:01 +0200700
701 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200702 fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200703
Andi Kleend73515c2015-03-11 07:16:27 -0700704 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200705 fputc('\n', output);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200706 return;
707 }
708
Stephane Eranian410136f2013-11-12 17:58:49 +0100709 uval = avg * counter->scale;
710
Ingo Molnar42202dd2009-06-13 14:57:28 +0200711 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100712 nsec_printout(-1, 0, counter, uval);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200713 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100714 abs_printout(-1, 0, counter, uval);
Peter Zijlstra849abde2009-09-04 18:23:38 +0200715
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700716 print_noise(counter, avg);
717
Andi Kleend73515c2015-03-11 07:16:27 -0700718 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200719 fprintf(output, "\n");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200720}
721
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200722/*
723 * Print out the results of a single counter:
724 * does not use aggregated count in system-wide
725 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100726static void print_counter(struct perf_evsel *counter, char *prefix)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200727{
Jiri Olsa58215222015-07-21 14:31:24 +0200728 FILE *output = stat_config.output;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200729 u64 ena, run, val;
Stephane Eranian410136f2013-11-12 17:58:49 +0100730 double uval;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200731 int cpu;
732
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800733 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200734 val = perf_counts(counter->counts, cpu, 0)->val;
735 ena = perf_counts(counter->counts, cpu, 0)->ena;
736 run = perf_counts(counter->counts, cpu, 0)->run;
Stephane Eranian13370a92013-01-29 12:47:44 +0100737
738 if (prefix)
739 fprintf(output, "%s", prefix);
740
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200741 if (run == 0 || ena == 0) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100742 fprintf(output, "CPU%*d%s%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200743 csv_output ? 0 : -4,
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800744 perf_evsel__cpus(counter)->map[cpu], csv_sep,
Stephane Eraniand7470b62010-12-01 18:49:05 +0200745 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600746 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100747 csv_sep);
748
749 fprintf(output, "%-*s%s",
750 csv_output ? 0 : unit_width,
751 counter->unit, csv_sep);
752
753 fprintf(output, "%*s",
754 csv_output ? 0 : -25,
755 perf_evsel__name(counter));
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200756
Stephane Eranian023695d2011-02-14 11:20:01 +0200757 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200758 fprintf(output, "%s%s",
759 csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200760
Andi Kleend73515c2015-03-11 07:16:27 -0700761 print_running(run, ena);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200762 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200763 continue;
764 }
765
Stephane Eranian410136f2013-11-12 17:58:49 +0100766 uval = val * counter->scale;
767
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200768 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100769 nsec_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200770 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100771 abs_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200772
Andi Kleend73515c2015-03-11 07:16:27 -0700773 if (!csv_output)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200774 print_noise(counter, 1.0);
Andi Kleend73515c2015-03-11 07:16:27 -0700775 print_running(run, ena);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200776
Stephane Eranian4aa90152011-08-15 22:22:33 +0200777 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200778 }
779}
780
Jiri Olsad4f63a42015-06-26 11:29:26 +0200781static void print_interval(char *prefix, struct timespec *ts)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200782{
Jiri Olsa58215222015-07-21 14:31:24 +0200783 FILE *output = stat_config.output;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200784 static int num_print_interval;
785
786 sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
787
788 if (num_print_interval == 0 && !csv_output) {
Jiri Olsa421a50f2015-07-21 14:31:22 +0200789 switch (stat_config.aggr_mode) {
Jiri Olsad4f63a42015-06-26 11:29:26 +0200790 case AGGR_SOCKET:
791 fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
792 break;
793 case AGGR_CORE:
794 fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
795 break;
796 case AGGR_NONE:
797 fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
798 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200799 case AGGR_THREAD:
800 fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
801 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200802 case AGGR_GLOBAL:
803 default:
804 fprintf(output, "# time counts %*s events\n", unit_width, "unit");
Jiri Olsa208df992015-10-16 12:41:04 +0200805 case AGGR_UNSET:
806 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200807 }
808 }
809
810 if (++num_print_interval == 25)
811 num_print_interval = 0;
812}
813
814static void print_header(int argc, const char **argv)
815{
Jiri Olsa58215222015-07-21 14:31:24 +0200816 FILE *output = stat_config.output;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200817 int i;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200818
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200819 fflush(stdout);
820
Stephane Eraniand7470b62010-12-01 18:49:05 +0200821 if (!csv_output) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200822 fprintf(output, "\n");
823 fprintf(output, " Performance counter stats for ");
David Ahern62d3b612013-09-28 14:27:58 -0600824 if (target.system_wide)
825 fprintf(output, "\'system wide");
826 else if (target.cpu_list)
827 fprintf(output, "\'CPU(s) %s", target.cpu_list);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300828 else if (!target__has_task(&target)) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200829 fprintf(output, "\'%s", argv[0]);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200830 for (i = 1; i < argc; i++)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200831 fprintf(output, " %s", argv[i]);
Namhyung Kim20f946b2012-04-26 14:15:16 +0900832 } else if (target.pid)
833 fprintf(output, "process id \'%s", target.pid);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200834 else
Namhyung Kim20f946b2012-04-26 14:15:16 +0900835 fprintf(output, "thread id \'%s", target.tid);
Ingo Molnar44db76c2009-06-03 19:36:07 +0200836
Stephane Eranian4aa90152011-08-15 22:22:33 +0200837 fprintf(output, "\'");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200838 if (run_count > 1)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200839 fprintf(output, " (%d runs)", run_count);
840 fprintf(output, ":\n\n");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200841 }
Jiri Olsad4f63a42015-06-26 11:29:26 +0200842}
843
844static void print_footer(void)
845{
Jiri Olsa58215222015-07-21 14:31:24 +0200846 FILE *output = stat_config.output;
847
Jiri Olsad4f63a42015-06-26 11:29:26 +0200848 if (!null_run)
849 fprintf(output, "\n");
850 fprintf(output, " %17.9f seconds time elapsed",
851 avg_stats(&walltime_nsecs_stats)/1e9);
852 if (run_count > 1) {
853 fprintf(output, " ");
854 print_noise_pct(stddev_stats(&walltime_nsecs_stats),
855 avg_stats(&walltime_nsecs_stats));
856 }
857 fprintf(output, "\n\n");
858}
859
860static void print_counters(struct timespec *ts, int argc, const char **argv)
861{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200862 int interval = stat_config.interval;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200863 struct perf_evsel *counter;
864 char buf[64], *prefix = NULL;
865
866 if (interval)
867 print_interval(prefix = buf, ts);
868 else
869 print_header(argc, argv);
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200870
Jiri Olsa421a50f2015-07-21 14:31:22 +0200871 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100872 case AGGR_CORE:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100873 case AGGR_SOCKET:
Jiri Olsad4f63a42015-06-26 11:29:26 +0200874 print_aggr(prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100875 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200876 case AGGR_THREAD:
877 evlist__for_each(evsel_list, counter)
878 print_aggr_thread(counter, prefix);
879 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100880 case AGGR_GLOBAL:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300881 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +0200882 print_counter_aggr(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100883 break;
884 case AGGR_NONE:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300885 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +0200886 print_counter(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100887 break;
Jiri Olsa208df992015-10-16 12:41:04 +0200888 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100889 default:
890 break;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200891 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200892
Jiri Olsad4f63a42015-06-26 11:29:26 +0200893 if (!interval && !csv_output)
894 print_footer();
895
Jiri Olsa58215222015-07-21 14:31:24 +0200896 fflush(stat_config.output);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200897}
898
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200899static volatile int signr = -1;
900
Ingo Molnar52425192009-05-26 09:17:18 +0200901static void skip_signal(int signo)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200902{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200903 if ((child_pid == -1) || stat_config.interval)
Liming Wang60666c62009-12-31 16:05:50 +0800904 done = 1;
905
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200906 signr = signo;
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200907 /*
908 * render child_pid harmless
909 * won't send SIGTERM to a random
910 * process in case of race condition
911 * and fast PID recycling
912 */
913 child_pid = -1;
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200914}
915
916static void sig_atexit(void)
917{
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200918 sigset_t set, oset;
919
920 /*
921 * avoid race condition with SIGCHLD handler
922 * in skip_signal() which is modifying child_pid
923 * goal is to avoid send SIGTERM to a random
924 * process
925 */
926 sigemptyset(&set);
927 sigaddset(&set, SIGCHLD);
928 sigprocmask(SIG_BLOCK, &set, &oset);
929
Chris Wilson933da832009-10-04 01:35:01 +0100930 if (child_pid != -1)
931 kill(child_pid, SIGTERM);
932
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200933 sigprocmask(SIG_SETMASK, &oset, NULL);
934
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200935 if (signr == -1)
936 return;
937
938 signal(signr, SIG_DFL);
939 kill(getpid(), signr);
Ingo Molnar52425192009-05-26 09:17:18 +0200940}
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200941
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300942static int stat__set_big_num(const struct option *opt __maybe_unused,
943 const char *s __maybe_unused, int unset)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200944{
945 big_num_opt = unset ? 0 : 1;
946 return 0;
947}
948
Jiri Olsa1fe7a302015-10-16 12:41:15 +0200949static int perf_stat__get_socket(struct cpu_map *map, int cpu)
950{
951 return cpu_map__get_socket(map, cpu, NULL);
952}
953
954static int perf_stat__get_core(struct cpu_map *map, int cpu)
955{
956 return cpu_map__get_core(map, cpu, NULL);
957}
958
Jiri Olsa1e5a2932015-10-25 15:51:18 +0100959static int cpu_map__get_max(struct cpu_map *map)
960{
961 int i, max = -1;
962
963 for (i = 0; i < map->nr; i++) {
964 if (map->map[i] > max)
965 max = map->map[i];
966 }
967
968 return max;
969}
970
971static struct cpu_map *cpus_aggr_map;
972
973static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx)
974{
975 int cpu;
976
977 if (idx >= map->nr)
978 return -1;
979
980 cpu = map->map[idx];
981
982 if (cpus_aggr_map->map[cpu] == -1)
983 cpus_aggr_map->map[cpu] = get_id(map, idx);
984
985 return cpus_aggr_map->map[cpu];
986}
987
988static int perf_stat__get_socket_cached(struct cpu_map *map, int idx)
989{
990 return perf_stat__get_aggr(perf_stat__get_socket, map, idx);
991}
992
993static int perf_stat__get_core_cached(struct cpu_map *map, int idx)
994{
995 return perf_stat__get_aggr(perf_stat__get_core, map, idx);
996}
997
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100998static int perf_stat_init_aggr_mode(void)
999{
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001000 int nr;
1001
Jiri Olsa421a50f2015-07-21 14:31:22 +02001002 switch (stat_config.aggr_mode) {
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001003 case AGGR_SOCKET:
1004 if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
1005 perror("cannot build socket map");
1006 return -1;
1007 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001008 aggr_get_id = perf_stat__get_socket_cached;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001009 break;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001010 case AGGR_CORE:
1011 if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
1012 perror("cannot build core map");
1013 return -1;
1014 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001015 aggr_get_id = perf_stat__get_core_cached;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001016 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001017 case AGGR_NONE:
1018 case AGGR_GLOBAL:
Jiri Olsa32b8af82015-06-26 11:29:27 +02001019 case AGGR_THREAD:
Jiri Olsa208df992015-10-16 12:41:04 +02001020 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001021 default:
1022 break;
1023 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001024
1025 /*
1026 * The evsel_list->cpus is the base we operate on,
1027 * taking the highest cpu number to be the size of
1028 * the aggregation translate cpumap.
1029 */
1030 nr = cpu_map__get_max(evsel_list->cpus);
1031 cpus_aggr_map = cpu_map__empty_new(nr + 1);
1032 return cpus_aggr_map ? 0 : -ENOMEM;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001033}
1034
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001035/*
1036 * Add default attributes, if there were no attributes specified or
1037 * if -d/--detailed, -d -d or -d -d -d is used:
1038 */
1039static int add_default_attributes(void)
1040{
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001041 struct perf_event_attr default_attrs[] = {
1042
1043 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
1044 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES },
1045 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS },
1046 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS },
1047
1048 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES },
1049 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
1050 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
1051 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS },
1052 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
1053 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES },
1054
1055};
1056
1057/*
1058 * Detailed stats (-d), covering the L1 and last level data caches:
1059 */
1060 struct perf_event_attr detailed_attrs[] = {
1061
1062 { .type = PERF_TYPE_HW_CACHE,
1063 .config =
1064 PERF_COUNT_HW_CACHE_L1D << 0 |
1065 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1066 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1067
1068 { .type = PERF_TYPE_HW_CACHE,
1069 .config =
1070 PERF_COUNT_HW_CACHE_L1D << 0 |
1071 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1072 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1073
1074 { .type = PERF_TYPE_HW_CACHE,
1075 .config =
1076 PERF_COUNT_HW_CACHE_LL << 0 |
1077 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1078 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1079
1080 { .type = PERF_TYPE_HW_CACHE,
1081 .config =
1082 PERF_COUNT_HW_CACHE_LL << 0 |
1083 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1084 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1085};
1086
1087/*
1088 * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
1089 */
1090 struct perf_event_attr very_detailed_attrs[] = {
1091
1092 { .type = PERF_TYPE_HW_CACHE,
1093 .config =
1094 PERF_COUNT_HW_CACHE_L1I << 0 |
1095 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1096 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1097
1098 { .type = PERF_TYPE_HW_CACHE,
1099 .config =
1100 PERF_COUNT_HW_CACHE_L1I << 0 |
1101 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1102 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1103
1104 { .type = PERF_TYPE_HW_CACHE,
1105 .config =
1106 PERF_COUNT_HW_CACHE_DTLB << 0 |
1107 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1108 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1109
1110 { .type = PERF_TYPE_HW_CACHE,
1111 .config =
1112 PERF_COUNT_HW_CACHE_DTLB << 0 |
1113 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1114 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1115
1116 { .type = PERF_TYPE_HW_CACHE,
1117 .config =
1118 PERF_COUNT_HW_CACHE_ITLB << 0 |
1119 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1120 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1121
1122 { .type = PERF_TYPE_HW_CACHE,
1123 .config =
1124 PERF_COUNT_HW_CACHE_ITLB << 0 |
1125 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1126 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1127
1128};
1129
1130/*
1131 * Very, very detailed stats (-d -d -d), adding prefetch events:
1132 */
1133 struct perf_event_attr very_very_detailed_attrs[] = {
1134
1135 { .type = PERF_TYPE_HW_CACHE,
1136 .config =
1137 PERF_COUNT_HW_CACHE_L1D << 0 |
1138 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1139 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1140
1141 { .type = PERF_TYPE_HW_CACHE,
1142 .config =
1143 PERF_COUNT_HW_CACHE_L1D << 0 |
1144 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1145 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1146};
1147
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001148 /* Set attrs if no event is selected and !null_run: */
1149 if (null_run)
1150 return 0;
1151
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001152 if (transaction_run) {
1153 int err;
1154 if (pmu_have_event("cpu", "cycles-ct") &&
1155 pmu_have_event("cpu", "el-start"))
Jiri Olsaa4547422015-06-03 16:25:53 +02001156 err = parse_events(evsel_list, transaction_attrs, NULL);
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001157 else
Jiri Olsaa4547422015-06-03 16:25:53 +02001158 err = parse_events(evsel_list, transaction_limited_attrs, NULL);
1159 if (err) {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001160 fprintf(stderr, "Cannot set up transaction events\n");
1161 return -1;
1162 }
1163 return 0;
1164 }
1165
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001166 if (!evsel_list->nr_entries) {
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001167 if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001168 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001169 }
1170
1171 /* Detailed events get appended to the event list: */
1172
1173 if (detailed_run < 1)
1174 return 0;
1175
1176 /* Append detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001177 if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001178 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001179
1180 if (detailed_run < 2)
1181 return 0;
1182
1183 /* Append very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001184 if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001185 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001186
1187 if (detailed_run < 3)
1188 return 0;
1189
1190 /* Append very, very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001191 return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001192}
1193
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001194int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
Ingo Molnar52425192009-05-26 09:17:18 +02001195{
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001196 bool append_file = false;
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001197 int output_fd = 0;
1198 const char *output_name = NULL;
1199 const struct option options[] = {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001200 OPT_BOOLEAN('T', "transaction", &transaction_run,
1201 "hardware transaction statistics"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001202 OPT_CALLBACK('e', "event", &evsel_list, "event",
1203 "event selector. use 'perf list' to list available events",
1204 parse_events_option),
1205 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
1206 "event filter", parse_filter),
1207 OPT_BOOLEAN('i', "no-inherit", &no_inherit,
1208 "child tasks do not inherit counters"),
1209 OPT_STRING('p', "pid", &target.pid, "pid",
1210 "stat events on existing process id"),
1211 OPT_STRING('t', "tid", &target.tid, "tid",
1212 "stat events on existing thread id"),
1213 OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
1214 "system-wide collection from all CPUs"),
1215 OPT_BOOLEAN('g', "group", &group,
1216 "put the counters into a counter group"),
Jiri Olsa711a5722015-07-21 14:31:23 +02001217 OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001218 OPT_INCR('v', "verbose", &verbose,
1219 "be more verbose (show counter open errors, etc)"),
1220 OPT_INTEGER('r', "repeat", &run_count,
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001221 "repeat command and print average + stddev (max: 100, forever: 0)"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001222 OPT_BOOLEAN('n', "null", &null_run,
1223 "null run - dont start any counters"),
1224 OPT_INCR('d', "detailed", &detailed_run,
1225 "detailed run - start a lot of events"),
1226 OPT_BOOLEAN('S', "sync", &sync_run,
1227 "call sync() before starting a run"),
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -03001228 OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001229 "print large numbers with thousands\' separators",
1230 stat__set_big_num),
1231 OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
1232 "list of cpus to monitor in system-wide"),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001233 OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001234 "disable CPU count aggregation", AGGR_NONE),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001235 OPT_STRING('x', "field-separator", &csv_sep, "separator",
1236 "print counts with custom separator"),
1237 OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
1238 "monitor event in cgroup name only", parse_cgroups),
1239 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1240 OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
1241 OPT_INTEGER(0, "log-fd", &output_fd,
1242 "log output to fd, instead of stderr"),
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001243 OPT_STRING(0, "pre", &pre_cmd, "command",
1244 "command to run prior to the measured command"),
1245 OPT_STRING(0, "post", &post_cmd, "command",
1246 "command to run after to the measured command"),
Jiri Olsaec0d3d12015-07-21 14:31:25 +02001247 OPT_UINTEGER('I', "interval-print", &stat_config.interval,
Kan Liang19afd102015-10-02 05:04:34 -04001248 "print counts at regular interval in ms (>= 10)"),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001249 OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001250 "aggregate counts per processor socket", AGGR_SOCKET),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001251 OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
Stephane Eranian12c08a92013-02-14 13:57:29 +01001252 "aggregate counts per physical processor core", AGGR_CORE),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001253 OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
Jiri Olsa32b8af82015-06-26 11:29:27 +02001254 "aggregate counts per thread", AGGR_THREAD),
Andi Kleen41191682013-08-02 17:41:11 -07001255 OPT_UINTEGER('D', "delay", &initial_delay,
1256 "ms to wait before starting measurement after program start"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001257 OPT_END()
1258 };
1259 const char * const stat_usage[] = {
1260 "perf stat [<options>] [<command>]",
1261 NULL
1262 };
Namhyung Kimcc03c542013-11-01 16:33:15 +09001263 int status = -EINVAL, run_idx;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001264 const char *mode;
Jiri Olsa58215222015-07-21 14:31:24 +02001265 FILE *output = stderr;
Jiri Olsaec0d3d12015-07-21 14:31:25 +02001266 unsigned int interval;
Ingo Molnar42202dd2009-06-13 14:57:28 +02001267
Stephane Eranian5af52b52010-05-18 15:00:01 +02001268 setlocale(LC_ALL, "");
1269
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001270 evsel_list = perf_evlist__new();
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001271 if (evsel_list == NULL)
1272 return -ENOMEM;
1273
Anton Blancharda0541232009-07-22 23:04:12 +10001274 argc = parse_options(argc, argv, options, stat_usage,
1275 PARSE_OPT_STOP_AT_NON_OPTION);
Stephane Eraniand7470b62010-12-01 18:49:05 +02001276
Jiri Olsaec0d3d12015-07-21 14:31:25 +02001277 interval = stat_config.interval;
1278
Stephane Eranian4aa90152011-08-15 22:22:33 +02001279 if (output_name && strcmp(output_name, "-"))
1280 output = NULL;
1281
Jim Cromie56f3bae2011-09-07 17:14:00 -06001282 if (output_name && output_fd) {
1283 fprintf(stderr, "cannot use both --output and --log-fd\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001284 parse_options_usage(stat_usage, options, "o", 1);
1285 parse_options_usage(NULL, options, "log-fd", 0);
1286 goto out;
Jim Cromie56f3bae2011-09-07 17:14:00 -06001287 }
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001288
1289 if (output_fd < 0) {
1290 fprintf(stderr, "argument to --log-fd must be a > 0\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001291 parse_options_usage(stat_usage, options, "log-fd", 0);
1292 goto out;
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001293 }
1294
Stephane Eranian4aa90152011-08-15 22:22:33 +02001295 if (!output) {
1296 struct timespec tm;
1297 mode = append_file ? "a" : "w";
1298
1299 output = fopen(output_name, mode);
1300 if (!output) {
1301 perror("failed to create output file");
David Ahernfceda7f2012-08-26 12:24:44 -06001302 return -1;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001303 }
1304 clock_gettime(CLOCK_REALTIME, &tm);
1305 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001306 } else if (output_fd > 0) {
Jim Cromie56f3bae2011-09-07 17:14:00 -06001307 mode = append_file ? "a" : "w";
1308 output = fdopen(output_fd, mode);
1309 if (!output) {
1310 perror("Failed opening logfd");
1311 return -errno;
1312 }
Stephane Eranian4aa90152011-08-15 22:22:33 +02001313 }
1314
Jiri Olsa58215222015-07-21 14:31:24 +02001315 stat_config.output = output;
1316
Jim Cromied4ffd042011-09-07 17:14:03 -06001317 if (csv_sep) {
Stephane Eraniand7470b62010-12-01 18:49:05 +02001318 csv_output = true;
Jim Cromied4ffd042011-09-07 17:14:03 -06001319 if (!strcmp(csv_sep, "\\t"))
1320 csv_sep = "\t";
1321 } else
Stephane Eraniand7470b62010-12-01 18:49:05 +02001322 csv_sep = DEFAULT_SEPARATOR;
1323
1324 /*
1325 * let the spreadsheet do the pretty-printing
1326 */
1327 if (csv_output) {
Jim Cromie61a9f322011-09-07 17:14:04 -06001328 /* User explicitly passed -B? */
Stephane Eraniand7470b62010-12-01 18:49:05 +02001329 if (big_num_opt == 1) {
1330 fprintf(stderr, "-B option not supported with -x\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001331 parse_options_usage(stat_usage, options, "B", 1);
1332 parse_options_usage(NULL, options, "x", 1);
1333 goto out;
Stephane Eraniand7470b62010-12-01 18:49:05 +02001334 } else /* Nope, so disable big number formatting */
1335 big_num = false;
1336 } else if (big_num_opt == 0) /* User passed --no-big-num */
1337 big_num = false;
1338
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001339 if (!argc && target__none(&target))
Ingo Molnar52425192009-05-26 09:17:18 +02001340 usage_with_options(stat_usage, options);
David Ahernac3063b2013-09-30 07:37:37 -06001341
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001342 if (run_count < 0) {
Namhyung Kimcc03c542013-11-01 16:33:15 +09001343 pr_err("Run count must be a positive number\n");
1344 parse_options_usage(stat_usage, options, "r", 1);
1345 goto out;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001346 } else if (run_count == 0) {
1347 forever = true;
1348 run_count = 1;
1349 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001350
Jiri Olsa421a50f2015-07-21 14:31:22 +02001351 if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
Jiri Olsa32b8af82015-06-26 11:29:27 +02001352 fprintf(stderr, "The --per-thread option is only available "
1353 "when monitoring via -p -t options.\n");
1354 parse_options_usage(NULL, options, "p", 1);
1355 parse_options_usage(NULL, options, "t", 1);
1356 goto out;
1357 }
1358
1359 /*
1360 * no_aggr, cgroup are for system-wide only
1361 * --per-thread is aggregated per thread, we dont mix it with cpu mode
1362 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001363 if (((stat_config.aggr_mode != AGGR_GLOBAL &&
1364 stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001365 !target__has_cpu(&target)) {
Stephane Eranian023695d2011-02-14 11:20:01 +02001366 fprintf(stderr, "both cgroup and no-aggregation "
1367 "modes only available in system-wide mode\n");
1368
Namhyung Kimcc03c542013-11-01 16:33:15 +09001369 parse_options_usage(stat_usage, options, "G", 1);
1370 parse_options_usage(NULL, options, "A", 1);
1371 parse_options_usage(NULL, options, "a", 1);
1372 goto out;
Stephane Eraniand7e7a452013-02-06 15:46:02 +01001373 }
1374
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001375 if (add_default_attributes())
1376 goto out;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001377
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001378 target__validate(&target);
Arnaldo Carvalho de Melo5c98d4662011-01-03 17:53:33 -02001379
Namhyung Kim77a6f012012-05-07 14:09:04 +09001380 if (perf_evlist__create_maps(evsel_list, &target) < 0) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001381 if (target__has_task(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001382 pr_err("Problems finding threads of monitor\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001383 parse_options_usage(stat_usage, options, "p", 1);
1384 parse_options_usage(NULL, options, "t", 1);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001385 } else if (target__has_cpu(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001386 perror("failed to parse CPUs map");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001387 parse_options_usage(stat_usage, options, "C", 1);
1388 parse_options_usage(NULL, options, "a", 1);
1389 }
1390 goto out;
Arnaldo Carvalho de Melo60d567e2011-01-03 17:49:48 -02001391 }
Jiri Olsa32b8af82015-06-26 11:29:27 +02001392
1393 /*
1394 * Initialize thread_map with comm names,
1395 * so we could print it out on output.
1396 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001397 if (stat_config.aggr_mode == AGGR_THREAD)
Jiri Olsa32b8af82015-06-26 11:29:27 +02001398 thread_map__read_comms(evsel_list->threads);
1399
Stephane Eranian13370a92013-01-29 12:47:44 +01001400 if (interval && interval < 100) {
Kan Liang19afd102015-10-02 05:04:34 -04001401 if (interval < 10) {
1402 pr_err("print interval must be >= 10ms\n");
1403 parse_options_usage(stat_usage, options, "I", 1);
1404 goto out;
1405 } else
1406 pr_warning("print interval < 100ms. "
1407 "The overhead percentage could be high in some cases. "
1408 "Please proceed with caution.\n");
Stephane Eranian13370a92013-01-29 12:47:44 +01001409 }
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001410
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001411 if (perf_evlist__alloc_stats(evsel_list, interval))
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001412 goto out;
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001413
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001414 if (perf_stat_init_aggr_mode())
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001415 goto out;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001416
Ingo Molnar58d7e992009-05-15 11:03:23 +02001417 /*
1418 * We dont want to block the signals - that would cause
1419 * child tasks to inherit that and Ctrl-C would not work.
1420 * What we want is for Ctrl-C to work in the exec()-ed
1421 * task, but being ignored by perf stat itself:
1422 */
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001423 atexit(sig_atexit);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001424 if (!forever)
1425 signal(SIGINT, skip_signal);
Stephane Eranian13370a92013-01-29 12:47:44 +01001426 signal(SIGCHLD, skip_signal);
Ingo Molnar58d7e992009-05-15 11:03:23 +02001427 signal(SIGALRM, skip_signal);
1428 signal(SIGABRT, skip_signal);
1429
Ingo Molnar42202dd2009-06-13 14:57:28 +02001430 status = 0;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001431 for (run_idx = 0; forever || run_idx < run_count; run_idx++) {
Ingo Molnar42202dd2009-06-13 14:57:28 +02001432 if (run_count != 1 && verbose)
Stephane Eranian4aa90152011-08-15 22:22:33 +02001433 fprintf(output, "[ perf stat: executing run #%d ... ]\n",
1434 run_idx + 1);
Ingo Molnarf9cef0a2011-04-28 18:17:11 +02001435
Ingo Molnar42202dd2009-06-13 14:57:28 +02001436 status = run_perf_stat(argc, argv);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001437 if (forever && status != -1) {
Jiri Olsad4f63a42015-06-26 11:29:26 +02001438 print_counters(NULL, argc, argv);
Jiri Olsa254ecbc2015-06-26 11:29:13 +02001439 perf_stat__reset_stats();
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001440 }
Ingo Molnar42202dd2009-06-13 14:57:28 +02001441 }
1442
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001443 if (!forever && status != -1 && !interval)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001444 print_counters(NULL, argc, argv);
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001445
1446 perf_evlist__free_stats(evsel_list);
Arnaldo Carvalho de Melo0015e2e2011-02-01 16:18:10 -02001447out:
1448 perf_evlist__delete(evsel_list);
Ingo Molnar42202dd2009-06-13 14:57:28 +02001449 return status;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001450}