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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"
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060048#include <subcmd/parse-options.h>
Ingo Molnar52425192009-05-26 09:17:18 +020049#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;
Jiri Olsae0547312015-11-05 15:40:45 +0100125static bool append_file;
126static const char *output_name;
127static int output_fd;
Stephane Eranian5af52b52010-05-18 15:00:01 +0200128
Liming Wang60666c62009-12-31 16:05:50 +0800129static volatile int done = 0;
130
Jiri Olsa421a50f2015-07-21 14:31:22 +0200131static struct perf_stat_config stat_config = {
132 .aggr_mode = AGGR_GLOBAL,
Jiri Olsa711a5722015-07-21 14:31:23 +0200133 .scale = true,
Jiri Olsa421a50f2015-07-21 14:31:22 +0200134};
135
Stephane Eranian13370a92013-01-29 12:47:44 +0100136static inline void diff_timespec(struct timespec *r, struct timespec *a,
137 struct timespec *b)
138{
139 r->tv_sec = a->tv_sec - b->tv_sec;
140 if (a->tv_nsec < b->tv_nsec) {
141 r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec;
142 r->tv_sec--;
143 } else {
144 r->tv_nsec = a->tv_nsec - b->tv_nsec ;
145 }
146}
147
Jiri Olsa254ecbc2015-06-26 11:29:13 +0200148static void perf_stat__reset_stats(void)
149{
150 perf_evlist__reset_stats(evsel_list);
Jiri Olsaf87027b2015-06-03 16:25:59 +0200151 perf_stat__reset_shadow_stats();
Jiri Olsa1eda3b22015-06-03 16:25:55 +0200152}
153
Jiri Olsacac21422012-11-12 18:34:00 +0100154static int create_perf_stat_counter(struct perf_evsel *evsel)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200155{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200156 struct perf_event_attr *attr = &evsel->attr;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200157
Jiri Olsa711a5722015-07-21 14:31:23 +0200158 if (stat_config.scale)
Ingo Molnara21ca2c2009-06-06 09:58:57 +0200159 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
160 PERF_FORMAT_TOTAL_TIME_RUNNING;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200161
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200162 attr->inherit = !no_inherit;
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300163
Jiri Olsa6acd8e92015-11-25 16:36:54 +0100164 /*
165 * Some events get initialized with sample_(period/type) set,
166 * like tracepoints. Clear it up for counting.
167 */
168 attr->sample_period = 0;
169 attr->sample_type = 0;
170
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100171 /*
172 * Disabling all counters initially, they will be enabled
173 * either manually by us or by kernel via enable_on_exec
174 * set later.
175 */
Jiri Olsac8280ce2015-12-03 10:06:45 +0100176 if (perf_evsel__is_group_leader(evsel)) {
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100177 attr->disabled = 1;
178
Jiri Olsac8280ce2015-12-03 10:06:45 +0100179 /*
180 * In case of initial_delay we enable tracee
181 * events manually.
182 */
183 if (target__none(&target) && !initial_delay)
184 attr->enable_on_exec = 1;
185 }
186
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300187 if (target__has_cpu(&target))
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300188 return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
Stephane Eranian5622c072012-04-27 14:45:38 +0200189
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300190 return perf_evsel__open_per_thread(evsel, evsel_list->threads);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200191}
192
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200193/*
194 * Does the counter have nsecs as a unit?
195 */
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200196static inline int nsec_counter(struct perf_evsel *evsel)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200197{
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200198 if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
199 perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200200 return 1;
201
202 return 0;
203}
204
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200205/*
206 * Read out the results of a single counter:
207 * do not aggregate counts across CPUs in system-wide mode
208 */
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200209static int read_counter(struct perf_evsel *counter)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200210{
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100211 int nthreads = thread_map__nr(evsel_list->threads);
212 int ncpus = perf_evsel__nr_cpus(counter);
213 int cpu, thread;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200214
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000215 if (!counter->supported)
216 return -ENOENT;
217
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100218 if (counter->system_wide)
219 nthreads = 1;
220
221 for (thread = 0; thread < nthreads; thread++) {
222 for (cpu = 0; cpu < ncpus; cpu++) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200223 struct perf_counts_values *count;
224
225 count = perf_counts(counter->counts, cpu, thread);
226 if (perf_evsel__read(counter, cpu, thread, count))
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100227 return -1;
228 }
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200229 }
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200230
231 return 0;
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200232}
233
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200234static void read_counters(bool close_counters)
Jiri Olsa106a94a2015-06-26 11:29:19 +0200235{
236 struct perf_evsel *counter;
Jiri Olsa106a94a2015-06-26 11:29:19 +0200237
238 evlist__for_each(evsel_list, counter) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200239 if (read_counter(counter))
Andi Kleen245bad82015-09-01 15:52:46 -0700240 pr_debug("failed to read counter %s\n", counter->name);
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200241
Jiri Olsaf80010e2015-07-21 14:31:27 +0200242 if (perf_stat_process_counter(&stat_config, counter))
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200243 pr_warning("failed to process counter %s\n", counter->name);
Jiri Olsa106a94a2015-06-26 11:29:19 +0200244
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200245 if (close_counters) {
Jiri Olsa106a94a2015-06-26 11:29:19 +0200246 perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
247 thread_map__nr(evsel_list->threads));
248 }
249 }
250}
251
Jiri Olsaba411a92015-06-26 11:29:24 +0200252static void process_interval(void)
Stephane Eranian13370a92013-01-29 12:47:44 +0100253{
Stephane Eranian13370a92013-01-29 12:47:44 +0100254 struct timespec ts, rs;
Stephane Eranian13370a92013-01-29 12:47:44 +0100255
Jiri Olsa106a94a2015-06-26 11:29:19 +0200256 read_counters(false);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100257
Stephane Eranian13370a92013-01-29 12:47:44 +0100258 clock_gettime(CLOCK_MONOTONIC, &ts);
259 diff_timespec(&rs, &ts, &ref_time);
Stephane Eranian13370a92013-01-29 12:47:44 +0100260
Jiri Olsad4f63a42015-06-26 11:29:26 +0200261 print_counters(&rs, 0, NULL);
Stephane Eranian13370a92013-01-29 12:47:44 +0100262}
263
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100264static void enable_counters(void)
Andi Kleen41191682013-08-02 17:41:11 -0700265{
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100266 if (initial_delay)
Andi Kleen41191682013-08-02 17:41:11 -0700267 usleep(initial_delay * 1000);
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100268
269 /*
270 * We need to enable counters only if:
271 * - we don't have tracee (attaching to task or cpu)
272 * - we have initial delay configured
273 */
274 if (!target__none(&target) || initial_delay)
Jiri Olsaab46db02015-12-03 10:06:43 +0100275 perf_evlist__enable(evsel_list);
Andi Kleen41191682013-08-02 17:41:11 -0700276}
277
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300278static volatile int workload_exec_errno;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300279
280/*
281 * perf_evlist__prepare_workload will send a SIGUSR1
282 * if the fork fails, since we asked by setting its
283 * want_signal to true.
284 */
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300285static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
286 void *ucontext __maybe_unused)
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300287{
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300288 workload_exec_errno = info->si_value.sival_int;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300289}
290
Namhyung Kimacf28922013-03-11 16:43:18 +0900291static int __run_perf_stat(int argc, const char **argv)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200292{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200293 int interval = stat_config.interval;
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300294 char msg[512];
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200295 unsigned long long t0, t1;
Jiri Olsacac21422012-11-12 18:34:00 +0100296 struct perf_evsel *counter;
Stephane Eranian13370a92013-01-29 12:47:44 +0100297 struct timespec ts;
Stephane Eranian410136f2013-11-12 17:58:49 +0100298 size_t l;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200299 int status = 0;
Zhang, Yanmin6be28502010-03-18 11:36:03 -0300300 const bool forks = (argc > 0);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200301
Stephane Eranian13370a92013-01-29 12:47:44 +0100302 if (interval) {
303 ts.tv_sec = interval / 1000;
304 ts.tv_nsec = (interval % 1000) * 1000000;
305 } else {
306 ts.tv_sec = 1;
307 ts.tv_nsec = 0;
308 }
309
Liming Wang60666c62009-12-31 16:05:50 +0800310 if (forks) {
Arnaldo Carvalho de Melo735f7e02014-01-03 14:56:49 -0300311 if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
312 workload_exec_failed_signal) < 0) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900313 perror("failed to prepare workload");
314 return -1;
Liming Wang60666c62009-12-31 16:05:50 +0800315 }
Namhyung Kimd20a47e2013-09-30 18:01:11 +0900316 child_pid = evsel_list->workload.pid;
Paul Mackerras051ae7f2009-06-29 21:13:21 +1000317 }
318
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200319 if (group)
Arnaldo Carvalho de Melo63dab222012-08-14 16:35:48 -0300320 perf_evlist__set_leader(evsel_list);
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200321
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300322 evlist__for_each(evsel_list, counter) {
Jiri Olsacac21422012-11-12 18:34:00 +0100323 if (create_perf_stat_counter(counter) < 0) {
David Ahern979987a2012-05-08 09:29:16 -0600324 /*
325 * PPC returns ENXIO for HW counters until 2.6.37
326 * (behavior changed with commit b0a873e).
327 */
Anton Blanchard38f6ae12011-12-02 09:38:33 +1100328 if (errno == EINVAL || errno == ENOSYS ||
David Ahern979987a2012-05-08 09:29:16 -0600329 errno == ENOENT || errno == EOPNOTSUPP ||
330 errno == ENXIO) {
David Ahernc63ca0c2011-04-29 16:04:15 -0600331 if (verbose)
332 ui__warning("%s event is not supported by the kernel.\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300333 perf_evsel__name(counter));
David Ahern2cee77c2011-05-30 08:55:59 -0600334 counter->supported = false;
Kan Liangcb5ef602015-06-11 02:32:40 -0400335
336 if ((counter->leader != counter) ||
337 !(counter->leader->nr_members > 1))
338 continue;
David Ahernc63ca0c2011-04-29 16:04:15 -0600339 }
Ingo Molnarede70292011-04-28 08:48:42 +0200340
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300341 perf_evsel__open_strerror(counter, &target,
342 errno, msg, sizeof(msg));
343 ui__error("%s\n", msg);
344
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200345 if (child_pid != -1)
346 kill(child_pid, SIGTERM);
David Ahernfceda7f2012-08-26 12:24:44 -0600347
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200348 return -1;
349 }
David Ahern2cee77c2011-05-30 08:55:59 -0600350 counter->supported = true;
Stephane Eranian410136f2013-11-12 17:58:49 +0100351
352 l = strlen(counter->unit);
353 if (l > unit_width)
354 unit_width = l;
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300355 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200356
Arnaldo Carvalho de Melo23d4aad2015-03-24 19:23:47 -0300357 if (perf_evlist__apply_filters(evsel_list, &counter)) {
358 error("failed to set filter \"%s\" on event %s with %d (%s)\n",
359 counter->filter, perf_evsel__name(counter), errno,
Masami Hiramatsu759e6122014-08-14 02:22:55 +0000360 strerror_r(errno, msg, sizeof(msg)));
Frederic Weisbeckercfd748a2011-03-14 16:40:30 +0100361 return -1;
362 }
363
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200364 /*
365 * Enable counters and exec the command:
366 */
367 t0 = rdclock();
Stephane Eranian13370a92013-01-29 12:47:44 +0100368 clock_gettime(CLOCK_MONOTONIC, &ref_time);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200369
Liming Wang60666c62009-12-31 16:05:50 +0800370 if (forks) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900371 perf_evlist__start_workload(evsel_list);
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100372 enable_counters();
Namhyung Kimacf28922013-03-11 16:43:18 +0900373
Stephane Eranian13370a92013-01-29 12:47:44 +0100374 if (interval) {
375 while (!waitpid(child_pid, &status, WNOHANG)) {
376 nanosleep(&ts, NULL);
Jiri Olsaba411a92015-06-26 11:29:24 +0200377 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100378 }
379 }
Liming Wang60666c62009-12-31 16:05:50 +0800380 wait(&status);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300381
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300382 if (workload_exec_errno) {
383 const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
384 pr_err("Workload failed: %s\n", emsg);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300385 return -1;
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300386 }
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300387
Andi Kleen33e49ea2011-09-15 14:31:40 -0700388 if (WIFSIGNALED(status))
389 psignal(WTERMSIG(status), argv[0]);
Liming Wang60666c62009-12-31 16:05:50 +0800390 } else {
Jiri Olsa67ccdec2015-12-03 10:06:44 +0100391 enable_counters();
Stephane Eranian13370a92013-01-29 12:47:44 +0100392 while (!done) {
393 nanosleep(&ts, NULL);
394 if (interval)
Jiri Olsaba411a92015-06-26 11:29:24 +0200395 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100396 }
Liming Wang60666c62009-12-31 16:05:50 +0800397 }
Ingo Molnar44db76c2009-06-03 19:36:07 +0200398
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200399 t1 = rdclock();
400
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200401 update_stats(&walltime_nsecs_stats, t1 - t0);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200402
Jiri Olsa106a94a2015-06-26 11:29:19 +0200403 read_counters(true);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200404
Ingo Molnar42202dd2009-06-13 14:57:28 +0200405 return WEXITSTATUS(status);
406}
407
Arnaldo Carvalho de Melo41cde472014-01-03 17:34:42 -0300408static int run_perf_stat(int argc, const char **argv)
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200409{
410 int ret;
411
412 if (pre_cmd) {
413 ret = system(pre_cmd);
414 if (ret)
415 return ret;
416 }
417
418 if (sync_run)
419 sync();
420
421 ret = __run_perf_stat(argc, argv);
422 if (ret)
423 return ret;
424
425 if (post_cmd) {
426 ret = system(post_cmd);
427 if (ret)
428 return ret;
429 }
430
431 return ret;
432}
433
Andi Kleend73515c2015-03-11 07:16:27 -0700434static void print_running(u64 run, u64 ena)
435{
436 if (csv_output) {
Jiri Olsa58215222015-07-21 14:31:24 +0200437 fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f",
Andi Kleend73515c2015-03-11 07:16:27 -0700438 csv_sep,
439 run,
440 csv_sep,
441 ena ? 100.0 * run / ena : 100.0);
442 } else if (run != ena) {
Jiri Olsa58215222015-07-21 14:31:24 +0200443 fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena);
Andi Kleend73515c2015-03-11 07:16:27 -0700444 }
445}
446
Ingo Molnarf99844c2011-04-27 05:35:39 +0200447static void print_noise_pct(double total, double avg)
448{
Xiao Guangrong0007ece2012-09-17 16:31:14 +0800449 double pct = rel_stddev_stats(total, avg);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200450
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700451 if (csv_output)
Jiri Olsa58215222015-07-21 14:31:24 +0200452 fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct);
Jim Cromiea1bca6c2011-09-07 17:14:02 -0600453 else if (pct)
Jiri Olsa58215222015-07-21 14:31:24 +0200454 fprintf(stat_config.output, " ( +-%6.2f%% )", pct);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200455}
456
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200457static void print_noise(struct perf_evsel *evsel, double avg)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200458{
Jiri Olsa581cc8a2015-10-16 12:41:03 +0200459 struct perf_stat_evsel *ps;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200460
Peter Zijlstra849abde2009-09-04 18:23:38 +0200461 if (run_count == 1)
462 return;
463
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200464 ps = evsel->priv;
Ingo Molnarf99844c2011-04-27 05:35:39 +0200465 print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200466}
467
Stephane Eranian12c08a92013-02-14 13:57:29 +0100468static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200469{
Jiri Olsa421a50f2015-07-21 14:31:22 +0200470 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100471 case AGGR_CORE:
Jiri Olsa58215222015-07-21 14:31:24 +0200472 fprintf(stat_config.output, "S%d-C%*d%s%*d%s",
Stephane Eranian12c08a92013-02-14 13:57:29 +0100473 cpu_map__id_to_socket(id),
474 csv_output ? 0 : -8,
475 cpu_map__id_to_cpu(id),
476 csv_sep,
477 csv_output ? 0 : 4,
478 nr,
479 csv_sep);
480 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100481 case AGGR_SOCKET:
Jiri Olsa58215222015-07-21 14:31:24 +0200482 fprintf(stat_config.output, "S%*d%s%*d%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100483 csv_output ? 0 : -5,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100484 id,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100485 csv_sep,
486 csv_output ? 0 : 4,
487 nr,
488 csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100489 break;
490 case AGGR_NONE:
Jiri Olsa58215222015-07-21 14:31:24 +0200491 fprintf(stat_config.output, "CPU%*d%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200492 csv_output ? 0 : -4,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100493 perf_evsel__cpus(evsel)->map[id], csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100494 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200495 case AGGR_THREAD:
Jiri Olsa58215222015-07-21 14:31:24 +0200496 fprintf(stat_config.output, "%*s-%*d%s",
Jiri Olsa32b8af82015-06-26 11:29:27 +0200497 csv_output ? 0 : 16,
498 thread_map__comm(evsel->threads, id),
499 csv_output ? 0 : -8,
500 thread_map__pid(evsel->threads, id),
501 csv_sep);
502 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100503 case AGGR_GLOBAL:
Jiri Olsa208df992015-10-16 12:41:04 +0200504 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100505 default:
506 break;
507 }
508}
Stephane Eraniand7470b62010-12-01 18:49:05 +0200509
Andi Kleenda88c7f2014-09-24 13:50:46 -0700510static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100511{
Jiri Olsa58215222015-07-21 14:31:24 +0200512 FILE *output = stat_config.output;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100513 double msecs = avg / 1e6;
Stephane Eranian410136f2013-11-12 17:58:49 +0100514 const char *fmt_v, *fmt_n;
David Ahern4bbe5a62013-09-28 14:28:00 -0600515 char name[25];
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100516
Stephane Eranian410136f2013-11-12 17:58:49 +0100517 fmt_v = csv_output ? "%.6f%s" : "%18.6f%s";
518 fmt_n = csv_output ? "%s" : "%-25s";
519
Andi Kleenda88c7f2014-09-24 13:50:46 -0700520 aggr_printout(evsel, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100521
David Ahern4bbe5a62013-09-28 14:28:00 -0600522 scnprintf(name, sizeof(name), "%s%s",
523 perf_evsel__name(evsel), csv_output ? "" : " (msec)");
Stephane Eranian410136f2013-11-12 17:58:49 +0100524
525 fprintf(output, fmt_v, msecs, csv_sep);
526
527 if (csv_output)
528 fprintf(output, "%s%s", evsel->unit, csv_sep);
529 else
530 fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep);
531
532 fprintf(output, fmt_n, name);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200533
Stephane Eranian023695d2011-02-14 11:20:01 +0200534 if (evsel->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200535 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200536}
537
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200538static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
539{
Jiri Olsa58215222015-07-21 14:31:24 +0200540 FILE *output = stat_config.output;
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200541 double sc = evsel->scale;
542 const char *fmt;
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200543
544 if (csv_output) {
545 fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
546 } else {
547 if (big_num)
548 fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
549 else
550 fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
551 }
552
553 aggr_printout(evsel, id, nr);
554
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200555 fprintf(output, fmt, avg, csv_sep);
556
557 if (evsel->unit)
558 fprintf(output, "%-*s%s",
559 csv_output ? 0 : unit_width,
560 evsel->unit, csv_sep);
561
562 fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel));
563
564 if (evsel->cgrp)
565 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
Andi Kleeneedfcb42015-11-02 17:50:21 -0800566}
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200567
Andi Kleeneedfcb42015-11-02 17:50:21 -0800568static void printout(int id, int nr, struct perf_evsel *counter, double uval)
569{
570 int cpu = cpu_map__id_to_cpu(id);
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200571
Andi Kleeneedfcb42015-11-02 17:50:21 -0800572 if (stat_config.aggr_mode == AGGR_GLOBAL)
573 cpu = 0;
574
575 if (nsec_counter(counter))
576 nsec_printout(id, nr, counter, uval);
577 else
578 abs_printout(id, nr, counter, uval);
579
580 if (!csv_output && !stat_config.interval)
581 perf_stat__print_shadow_stats(stat_config.output, counter,
582 uval, cpu,
583 stat_config.aggr_mode);
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200584}
585
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100586static void print_aggr(char *prefix)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100587{
Jiri Olsa58215222015-07-21 14:31:24 +0200588 FILE *output = stat_config.output;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100589 struct perf_evsel *counter;
Kan Liang601083c2015-07-02 03:08:43 -0400590 int cpu, s, s2, id, nr;
Stephane Eranian410136f2013-11-12 17:58:49 +0100591 double uval;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100592 u64 ena, run, val;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100593
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100594 if (!(aggr_map || aggr_get_id))
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100595 return;
596
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100597 for (s = 0; s < aggr_map->nr; s++) {
598 id = aggr_map->map[s];
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300599 evlist__for_each(evsel_list, counter) {
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100600 val = ena = run = 0;
601 nr = 0;
602 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Kan Liang601083c2015-07-02 03:08:43 -0400603 s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100604 if (s2 != id)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100605 continue;
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200606 val += perf_counts(counter->counts, cpu, 0)->val;
607 ena += perf_counts(counter->counts, cpu, 0)->ena;
608 run += perf_counts(counter->counts, cpu, 0)->run;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100609 nr++;
610 }
611 if (prefix)
612 fprintf(output, "%s", prefix);
613
614 if (run == 0 || ena == 0) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200615 aggr_printout(counter, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100616
Stephane Eranian410136f2013-11-12 17:58:49 +0100617 fprintf(output, "%*s%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100618 csv_output ? 0 : 18,
619 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100620 csv_sep);
621
622 fprintf(output, "%-*s%s",
623 csv_output ? 0 : unit_width,
624 counter->unit, csv_sep);
625
626 fprintf(output, "%*s",
627 csv_output ? 0 : -25,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100628 perf_evsel__name(counter));
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100629
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100630 if (counter->cgrp)
631 fprintf(output, "%s%s",
632 csv_sep, counter->cgrp->name);
633
Andi Kleend73515c2015-03-11 07:16:27 -0700634 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100635 fputc('\n', output);
636 continue;
637 }
Stephane Eranian410136f2013-11-12 17:58:49 +0100638 uval = val * counter->scale;
Andi Kleeneedfcb42015-11-02 17:50:21 -0800639 printout(id, nr, counter, uval);
Andi Kleend73515c2015-03-11 07:16:27 -0700640 if (!csv_output)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100641 print_noise(counter, 1.0);
642
Andi Kleend73515c2015-03-11 07:16:27 -0700643 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100644 fputc('\n', output);
645 }
646 }
647}
648
Jiri Olsa32b8af82015-06-26 11:29:27 +0200649static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
650{
Jiri Olsa58215222015-07-21 14:31:24 +0200651 FILE *output = stat_config.output;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200652 int nthreads = thread_map__nr(counter->threads);
653 int ncpus = cpu_map__nr(counter->cpus);
654 int cpu, thread;
655 double uval;
656
657 for (thread = 0; thread < nthreads; thread++) {
658 u64 ena = 0, run = 0, val = 0;
659
660 for (cpu = 0; cpu < ncpus; cpu++) {
661 val += perf_counts(counter->counts, cpu, thread)->val;
662 ena += perf_counts(counter->counts, cpu, thread)->ena;
663 run += perf_counts(counter->counts, cpu, thread)->run;
664 }
665
666 if (prefix)
667 fprintf(output, "%s", prefix);
668
669 uval = val * counter->scale;
Andi Kleeneedfcb42015-11-02 17:50:21 -0800670 printout(thread, 0, counter, uval);
Jiri Olsa32b8af82015-06-26 11:29:27 +0200671
672 if (!csv_output)
673 print_noise(counter, 1.0);
674
675 print_running(run, ena);
676 fputc('\n', output);
677 }
678}
679
Ingo Molnar42202dd2009-06-13 14:57:28 +0200680/*
681 * Print out the results of a single counter:
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200682 * aggregated counts in system-wide mode
Ingo Molnar42202dd2009-06-13 14:57:28 +0200683 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100684static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200685{
Jiri Olsa58215222015-07-21 14:31:24 +0200686 FILE *output = stat_config.output;
Jiri Olsa581cc8a2015-10-16 12:41:03 +0200687 struct perf_stat_evsel *ps = counter->priv;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200688 double avg = avg_stats(&ps->res_stats[0]);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200689 int scaled = counter->counts->scaled;
Stephane Eranian410136f2013-11-12 17:58:49 +0100690 double uval;
Andi Kleend73515c2015-03-11 07:16:27 -0700691 double avg_enabled, avg_running;
692
693 avg_enabled = avg_stats(&ps->res_stats[1]);
694 avg_running = avg_stats(&ps->res_stats[2]);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200695
Stephane Eranian13370a92013-01-29 12:47:44 +0100696 if (prefix)
697 fprintf(output, "%s", prefix);
698
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000699 if (scaled == -1 || !counter->supported) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100700 fprintf(output, "%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200701 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600702 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100703 csv_sep);
704 fprintf(output, "%-*s%s",
705 csv_output ? 0 : unit_width,
706 counter->unit, csv_sep);
707 fprintf(output, "%*s",
708 csv_output ? 0 : -25,
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300709 perf_evsel__name(counter));
Stephane Eranian023695d2011-02-14 11:20:01 +0200710
711 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200712 fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200713
Andi Kleend73515c2015-03-11 07:16:27 -0700714 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200715 fputc('\n', output);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200716 return;
717 }
718
Stephane Eranian410136f2013-11-12 17:58:49 +0100719 uval = avg * counter->scale;
Andi Kleeneedfcb42015-11-02 17:50:21 -0800720 printout(-1, 0, counter, uval);
Peter Zijlstra849abde2009-09-04 18:23:38 +0200721
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700722 print_noise(counter, avg);
723
Andi Kleend73515c2015-03-11 07:16:27 -0700724 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200725 fprintf(output, "\n");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200726}
727
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200728/*
729 * Print out the results of a single counter:
730 * does not use aggregated count in system-wide
731 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100732static void print_counter(struct perf_evsel *counter, char *prefix)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200733{
Jiri Olsa58215222015-07-21 14:31:24 +0200734 FILE *output = stat_config.output;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200735 u64 ena, run, val;
Stephane Eranian410136f2013-11-12 17:58:49 +0100736 double uval;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200737 int cpu;
738
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800739 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200740 val = perf_counts(counter->counts, cpu, 0)->val;
741 ena = perf_counts(counter->counts, cpu, 0)->ena;
742 run = perf_counts(counter->counts, cpu, 0)->run;
Stephane Eranian13370a92013-01-29 12:47:44 +0100743
744 if (prefix)
745 fprintf(output, "%s", prefix);
746
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200747 if (run == 0 || ena == 0) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100748 fprintf(output, "CPU%*d%s%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200749 csv_output ? 0 : -4,
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800750 perf_evsel__cpus(counter)->map[cpu], csv_sep,
Stephane Eraniand7470b62010-12-01 18:49:05 +0200751 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600752 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100753 csv_sep);
754
755 fprintf(output, "%-*s%s",
756 csv_output ? 0 : unit_width,
757 counter->unit, csv_sep);
758
759 fprintf(output, "%*s",
760 csv_output ? 0 : -25,
761 perf_evsel__name(counter));
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200762
Stephane Eranian023695d2011-02-14 11:20:01 +0200763 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200764 fprintf(output, "%s%s",
765 csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200766
Andi Kleend73515c2015-03-11 07:16:27 -0700767 print_running(run, ena);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200768 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200769 continue;
770 }
771
Stephane Eranian410136f2013-11-12 17:58:49 +0100772 uval = val * counter->scale;
Andi Kleeneedfcb42015-11-02 17:50:21 -0800773 printout(cpu, 0, counter, uval);
Andi Kleend73515c2015-03-11 07:16:27 -0700774 if (!csv_output)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200775 print_noise(counter, 1.0);
Andi Kleend73515c2015-03-11 07:16:27 -0700776 print_running(run, ena);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200777
Stephane Eranian4aa90152011-08-15 22:22:33 +0200778 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200779 }
780}
781
Jiri Olsad4f63a42015-06-26 11:29:26 +0200782static void print_interval(char *prefix, struct timespec *ts)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200783{
Jiri Olsa58215222015-07-21 14:31:24 +0200784 FILE *output = stat_config.output;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200785 static int num_print_interval;
786
787 sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
788
789 if (num_print_interval == 0 && !csv_output) {
Jiri Olsa421a50f2015-07-21 14:31:22 +0200790 switch (stat_config.aggr_mode) {
Jiri Olsad4f63a42015-06-26 11:29:26 +0200791 case AGGR_SOCKET:
792 fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
793 break;
794 case AGGR_CORE:
795 fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
796 break;
797 case AGGR_NONE:
798 fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
799 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200800 case AGGR_THREAD:
801 fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
802 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200803 case AGGR_GLOBAL:
804 default:
805 fprintf(output, "# time counts %*s events\n", unit_width, "unit");
Jiri Olsa208df992015-10-16 12:41:04 +0200806 case AGGR_UNSET:
807 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200808 }
809 }
810
811 if (++num_print_interval == 25)
812 num_print_interval = 0;
813}
814
815static void print_header(int argc, const char **argv)
816{
Jiri Olsa58215222015-07-21 14:31:24 +0200817 FILE *output = stat_config.output;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200818 int i;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200819
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200820 fflush(stdout);
821
Stephane Eraniand7470b62010-12-01 18:49:05 +0200822 if (!csv_output) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200823 fprintf(output, "\n");
824 fprintf(output, " Performance counter stats for ");
David Ahern62d3b612013-09-28 14:27:58 -0600825 if (target.system_wide)
826 fprintf(output, "\'system wide");
827 else if (target.cpu_list)
828 fprintf(output, "\'CPU(s) %s", target.cpu_list);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300829 else if (!target__has_task(&target)) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200830 fprintf(output, "\'%s", argv[0]);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200831 for (i = 1; i < argc; i++)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200832 fprintf(output, " %s", argv[i]);
Namhyung Kim20f946b2012-04-26 14:15:16 +0900833 } else if (target.pid)
834 fprintf(output, "process id \'%s", target.pid);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200835 else
Namhyung Kim20f946b2012-04-26 14:15:16 +0900836 fprintf(output, "thread id \'%s", target.tid);
Ingo Molnar44db76c2009-06-03 19:36:07 +0200837
Stephane Eranian4aa90152011-08-15 22:22:33 +0200838 fprintf(output, "\'");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200839 if (run_count > 1)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200840 fprintf(output, " (%d runs)", run_count);
841 fprintf(output, ":\n\n");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200842 }
Jiri Olsad4f63a42015-06-26 11:29:26 +0200843}
844
845static void print_footer(void)
846{
Jiri Olsa58215222015-07-21 14:31:24 +0200847 FILE *output = stat_config.output;
848
Jiri Olsad4f63a42015-06-26 11:29:26 +0200849 if (!null_run)
850 fprintf(output, "\n");
851 fprintf(output, " %17.9f seconds time elapsed",
852 avg_stats(&walltime_nsecs_stats)/1e9);
853 if (run_count > 1) {
854 fprintf(output, " ");
855 print_noise_pct(stddev_stats(&walltime_nsecs_stats),
856 avg_stats(&walltime_nsecs_stats));
857 }
858 fprintf(output, "\n\n");
859}
860
861static void print_counters(struct timespec *ts, int argc, const char **argv)
862{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200863 int interval = stat_config.interval;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200864 struct perf_evsel *counter;
865 char buf[64], *prefix = NULL;
866
867 if (interval)
868 print_interval(prefix = buf, ts);
869 else
870 print_header(argc, argv);
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200871
Jiri Olsa421a50f2015-07-21 14:31:22 +0200872 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100873 case AGGR_CORE:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100874 case AGGR_SOCKET:
Jiri Olsad4f63a42015-06-26 11:29:26 +0200875 print_aggr(prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100876 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200877 case AGGR_THREAD:
878 evlist__for_each(evsel_list, counter)
879 print_aggr_thread(counter, prefix);
880 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100881 case AGGR_GLOBAL:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300882 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +0200883 print_counter_aggr(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100884 break;
885 case AGGR_NONE:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300886 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +0200887 print_counter(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100888 break;
Jiri Olsa208df992015-10-16 12:41:04 +0200889 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100890 default:
891 break;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200892 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200893
Jiri Olsad4f63a42015-06-26 11:29:26 +0200894 if (!interval && !csv_output)
895 print_footer();
896
Jiri Olsa58215222015-07-21 14:31:24 +0200897 fflush(stat_config.output);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200898}
899
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200900static volatile int signr = -1;
901
Ingo Molnar52425192009-05-26 09:17:18 +0200902static void skip_signal(int signo)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200903{
Jiri Olsaec0d3d12015-07-21 14:31:25 +0200904 if ((child_pid == -1) || stat_config.interval)
Liming Wang60666c62009-12-31 16:05:50 +0800905 done = 1;
906
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200907 signr = signo;
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200908 /*
909 * render child_pid harmless
910 * won't send SIGTERM to a random
911 * process in case of race condition
912 * and fast PID recycling
913 */
914 child_pid = -1;
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200915}
916
917static void sig_atexit(void)
918{
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200919 sigset_t set, oset;
920
921 /*
922 * avoid race condition with SIGCHLD handler
923 * in skip_signal() which is modifying child_pid
924 * goal is to avoid send SIGTERM to a random
925 * process
926 */
927 sigemptyset(&set);
928 sigaddset(&set, SIGCHLD);
929 sigprocmask(SIG_BLOCK, &set, &oset);
930
Chris Wilson933da832009-10-04 01:35:01 +0100931 if (child_pid != -1)
932 kill(child_pid, SIGTERM);
933
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200934 sigprocmask(SIG_SETMASK, &oset, NULL);
935
Peter Zijlstraf7b7c262009-06-10 15:55:59 +0200936 if (signr == -1)
937 return;
938
939 signal(signr, SIG_DFL);
940 kill(getpid(), signr);
Ingo Molnar52425192009-05-26 09:17:18 +0200941}
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200942
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300943static int stat__set_big_num(const struct option *opt __maybe_unused,
944 const char *s __maybe_unused, int unset)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200945{
946 big_num_opt = unset ? 0 : 1;
947 return 0;
948}
949
Jiri Olsae0547312015-11-05 15:40:45 +0100950static const struct option stat_options[] = {
951 OPT_BOOLEAN('T', "transaction", &transaction_run,
952 "hardware transaction statistics"),
953 OPT_CALLBACK('e', "event", &evsel_list, "event",
954 "event selector. use 'perf list' to list available events",
955 parse_events_option),
956 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
957 "event filter", parse_filter),
958 OPT_BOOLEAN('i', "no-inherit", &no_inherit,
959 "child tasks do not inherit counters"),
960 OPT_STRING('p', "pid", &target.pid, "pid",
961 "stat events on existing process id"),
962 OPT_STRING('t', "tid", &target.tid, "tid",
963 "stat events on existing thread id"),
964 OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
965 "system-wide collection from all CPUs"),
966 OPT_BOOLEAN('g', "group", &group,
967 "put the counters into a counter group"),
968 OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"),
969 OPT_INCR('v', "verbose", &verbose,
970 "be more verbose (show counter open errors, etc)"),
971 OPT_INTEGER('r', "repeat", &run_count,
972 "repeat command and print average + stddev (max: 100, forever: 0)"),
973 OPT_BOOLEAN('n', "null", &null_run,
974 "null run - dont start any counters"),
975 OPT_INCR('d', "detailed", &detailed_run,
976 "detailed run - start a lot of events"),
977 OPT_BOOLEAN('S', "sync", &sync_run,
978 "call sync() before starting a run"),
979 OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
980 "print large numbers with thousands\' separators",
981 stat__set_big_num),
982 OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
983 "list of cpus to monitor in system-wide"),
984 OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
985 "disable CPU count aggregation", AGGR_NONE),
986 OPT_STRING('x', "field-separator", &csv_sep, "separator",
987 "print counts with custom separator"),
988 OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
989 "monitor event in cgroup name only", parse_cgroups),
990 OPT_STRING('o', "output", &output_name, "file", "output file name"),
991 OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
992 OPT_INTEGER(0, "log-fd", &output_fd,
993 "log output to fd, instead of stderr"),
994 OPT_STRING(0, "pre", &pre_cmd, "command",
995 "command to run prior to the measured command"),
996 OPT_STRING(0, "post", &post_cmd, "command",
997 "command to run after to the measured command"),
998 OPT_UINTEGER('I', "interval-print", &stat_config.interval,
999 "print counts at regular interval in ms (>= 10)"),
1000 OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
1001 "aggregate counts per processor socket", AGGR_SOCKET),
1002 OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
1003 "aggregate counts per physical processor core", AGGR_CORE),
1004 OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
1005 "aggregate counts per thread", AGGR_THREAD),
1006 OPT_UINTEGER('D', "delay", &initial_delay,
1007 "ms to wait before starting measurement after program start"),
1008 OPT_END()
1009};
1010
Jiri Olsa1fe7a302015-10-16 12:41:15 +02001011static int perf_stat__get_socket(struct cpu_map *map, int cpu)
1012{
1013 return cpu_map__get_socket(map, cpu, NULL);
1014}
1015
1016static int perf_stat__get_core(struct cpu_map *map, int cpu)
1017{
1018 return cpu_map__get_core(map, cpu, NULL);
1019}
1020
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001021static int cpu_map__get_max(struct cpu_map *map)
1022{
1023 int i, max = -1;
1024
1025 for (i = 0; i < map->nr; i++) {
1026 if (map->map[i] > max)
1027 max = map->map[i];
1028 }
1029
1030 return max;
1031}
1032
1033static struct cpu_map *cpus_aggr_map;
1034
1035static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx)
1036{
1037 int cpu;
1038
1039 if (idx >= map->nr)
1040 return -1;
1041
1042 cpu = map->map[idx];
1043
1044 if (cpus_aggr_map->map[cpu] == -1)
1045 cpus_aggr_map->map[cpu] = get_id(map, idx);
1046
1047 return cpus_aggr_map->map[cpu];
1048}
1049
1050static int perf_stat__get_socket_cached(struct cpu_map *map, int idx)
1051{
1052 return perf_stat__get_aggr(perf_stat__get_socket, map, idx);
1053}
1054
1055static int perf_stat__get_core_cached(struct cpu_map *map, int idx)
1056{
1057 return perf_stat__get_aggr(perf_stat__get_core, map, idx);
1058}
1059
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001060static int perf_stat_init_aggr_mode(void)
1061{
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001062 int nr;
1063
Jiri Olsa421a50f2015-07-21 14:31:22 +02001064 switch (stat_config.aggr_mode) {
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001065 case AGGR_SOCKET:
1066 if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
1067 perror("cannot build socket map");
1068 return -1;
1069 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001070 aggr_get_id = perf_stat__get_socket_cached;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001071 break;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001072 case AGGR_CORE:
1073 if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
1074 perror("cannot build core map");
1075 return -1;
1076 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001077 aggr_get_id = perf_stat__get_core_cached;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001078 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001079 case AGGR_NONE:
1080 case AGGR_GLOBAL:
Jiri Olsa32b8af82015-06-26 11:29:27 +02001081 case AGGR_THREAD:
Jiri Olsa208df992015-10-16 12:41:04 +02001082 case AGGR_UNSET:
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001083 default:
1084 break;
1085 }
Jiri Olsa1e5a2932015-10-25 15:51:18 +01001086
1087 /*
1088 * The evsel_list->cpus is the base we operate on,
1089 * taking the highest cpu number to be the size of
1090 * the aggregation translate cpumap.
1091 */
1092 nr = cpu_map__get_max(evsel_list->cpus);
1093 cpus_aggr_map = cpu_map__empty_new(nr + 1);
1094 return cpus_aggr_map ? 0 : -ENOMEM;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001095}
1096
Masami Hiramatsu544c2ae2015-12-09 11:11:27 +09001097static void perf_stat__exit_aggr_mode(void)
1098{
1099 cpu_map__put(aggr_map);
1100 cpu_map__put(cpus_aggr_map);
1101 aggr_map = NULL;
1102 cpus_aggr_map = NULL;
1103}
1104
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001105/*
1106 * Add default attributes, if there were no attributes specified or
1107 * if -d/--detailed, -d -d or -d -d -d is used:
1108 */
1109static int add_default_attributes(void)
1110{
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001111 struct perf_event_attr default_attrs[] = {
1112
1113 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
1114 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES },
1115 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS },
1116 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS },
1117
1118 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES },
1119 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
1120 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
1121 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS },
1122 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
1123 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES },
1124
1125};
1126
1127/*
1128 * Detailed stats (-d), covering the L1 and last level data caches:
1129 */
1130 struct perf_event_attr detailed_attrs[] = {
1131
1132 { .type = PERF_TYPE_HW_CACHE,
1133 .config =
1134 PERF_COUNT_HW_CACHE_L1D << 0 |
1135 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1136 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1137
1138 { .type = PERF_TYPE_HW_CACHE,
1139 .config =
1140 PERF_COUNT_HW_CACHE_L1D << 0 |
1141 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1142 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1143
1144 { .type = PERF_TYPE_HW_CACHE,
1145 .config =
1146 PERF_COUNT_HW_CACHE_LL << 0 |
1147 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1148 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1149
1150 { .type = PERF_TYPE_HW_CACHE,
1151 .config =
1152 PERF_COUNT_HW_CACHE_LL << 0 |
1153 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1154 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1155};
1156
1157/*
1158 * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
1159 */
1160 struct perf_event_attr very_detailed_attrs[] = {
1161
1162 { .type = PERF_TYPE_HW_CACHE,
1163 .config =
1164 PERF_COUNT_HW_CACHE_L1I << 0 |
1165 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1166 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1167
1168 { .type = PERF_TYPE_HW_CACHE,
1169 .config =
1170 PERF_COUNT_HW_CACHE_L1I << 0 |
1171 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1172 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1173
1174 { .type = PERF_TYPE_HW_CACHE,
1175 .config =
1176 PERF_COUNT_HW_CACHE_DTLB << 0 |
1177 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1178 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1179
1180 { .type = PERF_TYPE_HW_CACHE,
1181 .config =
1182 PERF_COUNT_HW_CACHE_DTLB << 0 |
1183 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1184 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1185
1186 { .type = PERF_TYPE_HW_CACHE,
1187 .config =
1188 PERF_COUNT_HW_CACHE_ITLB << 0 |
1189 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1190 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1191
1192 { .type = PERF_TYPE_HW_CACHE,
1193 .config =
1194 PERF_COUNT_HW_CACHE_ITLB << 0 |
1195 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1196 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1197
1198};
1199
1200/*
1201 * Very, very detailed stats (-d -d -d), adding prefetch events:
1202 */
1203 struct perf_event_attr very_very_detailed_attrs[] = {
1204
1205 { .type = PERF_TYPE_HW_CACHE,
1206 .config =
1207 PERF_COUNT_HW_CACHE_L1D << 0 |
1208 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1209 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1210
1211 { .type = PERF_TYPE_HW_CACHE,
1212 .config =
1213 PERF_COUNT_HW_CACHE_L1D << 0 |
1214 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1215 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1216};
1217
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001218 /* Set attrs if no event is selected and !null_run: */
1219 if (null_run)
1220 return 0;
1221
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001222 if (transaction_run) {
1223 int err;
1224 if (pmu_have_event("cpu", "cycles-ct") &&
1225 pmu_have_event("cpu", "el-start"))
Jiri Olsaa4547422015-06-03 16:25:53 +02001226 err = parse_events(evsel_list, transaction_attrs, NULL);
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001227 else
Jiri Olsaa4547422015-06-03 16:25:53 +02001228 err = parse_events(evsel_list, transaction_limited_attrs, NULL);
1229 if (err) {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001230 fprintf(stderr, "Cannot set up transaction events\n");
1231 return -1;
1232 }
1233 return 0;
1234 }
1235
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001236 if (!evsel_list->nr_entries) {
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001237 if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001238 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001239 }
1240
1241 /* Detailed events get appended to the event list: */
1242
1243 if (detailed_run < 1)
1244 return 0;
1245
1246 /* Append detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001247 if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001248 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001249
1250 if (detailed_run < 2)
1251 return 0;
1252
1253 /* Append very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001254 if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001255 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001256
1257 if (detailed_run < 3)
1258 return 0;
1259
1260 /* Append very, very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001261 return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001262}
1263
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001264int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
Ingo Molnar52425192009-05-26 09:17:18 +02001265{
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001266 const char * const stat_usage[] = {
1267 "perf stat [<options>] [<command>]",
1268 NULL
1269 };
Namhyung Kimcc03c542013-11-01 16:33:15 +09001270 int status = -EINVAL, run_idx;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001271 const char *mode;
Jiri Olsa58215222015-07-21 14:31:24 +02001272 FILE *output = stderr;
Jiri Olsaec0d3d12015-07-21 14:31:25 +02001273 unsigned int interval;
Ingo Molnar42202dd2009-06-13 14:57:28 +02001274
Stephane Eranian5af52b52010-05-18 15:00:01 +02001275 setlocale(LC_ALL, "");
1276
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001277 evsel_list = perf_evlist__new();
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001278 if (evsel_list == NULL)
1279 return -ENOMEM;
1280
Jiri Olsae0547312015-11-05 15:40:45 +01001281 argc = parse_options(argc, argv, stat_options, stat_usage,
Anton Blancharda0541232009-07-22 23:04:12 +10001282 PARSE_OPT_STOP_AT_NON_OPTION);
Stephane Eraniand7470b62010-12-01 18:49:05 +02001283
Jiri Olsaec0d3d12015-07-21 14:31:25 +02001284 interval = stat_config.interval;
1285
Stephane Eranian4aa90152011-08-15 22:22:33 +02001286 if (output_name && strcmp(output_name, "-"))
1287 output = NULL;
1288
Jim Cromie56f3bae2011-09-07 17:14:00 -06001289 if (output_name && output_fd) {
1290 fprintf(stderr, "cannot use both --output and --log-fd\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001291 parse_options_usage(stat_usage, stat_options, "o", 1);
1292 parse_options_usage(NULL, stat_options, "log-fd", 0);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001293 goto out;
Jim Cromie56f3bae2011-09-07 17:14:00 -06001294 }
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001295
1296 if (output_fd < 0) {
1297 fprintf(stderr, "argument to --log-fd must be a > 0\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001298 parse_options_usage(stat_usage, stat_options, "log-fd", 0);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001299 goto out;
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001300 }
1301
Stephane Eranian4aa90152011-08-15 22:22:33 +02001302 if (!output) {
1303 struct timespec tm;
1304 mode = append_file ? "a" : "w";
1305
1306 output = fopen(output_name, mode);
1307 if (!output) {
1308 perror("failed to create output file");
David Ahernfceda7f2012-08-26 12:24:44 -06001309 return -1;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001310 }
1311 clock_gettime(CLOCK_REALTIME, &tm);
1312 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001313 } else if (output_fd > 0) {
Jim Cromie56f3bae2011-09-07 17:14:00 -06001314 mode = append_file ? "a" : "w";
1315 output = fdopen(output_fd, mode);
1316 if (!output) {
1317 perror("Failed opening logfd");
1318 return -errno;
1319 }
Stephane Eranian4aa90152011-08-15 22:22:33 +02001320 }
1321
Jiri Olsa58215222015-07-21 14:31:24 +02001322 stat_config.output = output;
1323
Jim Cromied4ffd042011-09-07 17:14:03 -06001324 if (csv_sep) {
Stephane Eraniand7470b62010-12-01 18:49:05 +02001325 csv_output = true;
Jim Cromied4ffd042011-09-07 17:14:03 -06001326 if (!strcmp(csv_sep, "\\t"))
1327 csv_sep = "\t";
1328 } else
Stephane Eraniand7470b62010-12-01 18:49:05 +02001329 csv_sep = DEFAULT_SEPARATOR;
1330
1331 /*
1332 * let the spreadsheet do the pretty-printing
1333 */
1334 if (csv_output) {
Jim Cromie61a9f322011-09-07 17:14:04 -06001335 /* User explicitly passed -B? */
Stephane Eraniand7470b62010-12-01 18:49:05 +02001336 if (big_num_opt == 1) {
1337 fprintf(stderr, "-B option not supported with -x\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001338 parse_options_usage(stat_usage, stat_options, "B", 1);
1339 parse_options_usage(NULL, stat_options, "x", 1);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001340 goto out;
Stephane Eraniand7470b62010-12-01 18:49:05 +02001341 } else /* Nope, so disable big number formatting */
1342 big_num = false;
1343 } else if (big_num_opt == 0) /* User passed --no-big-num */
1344 big_num = false;
1345
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001346 if (!argc && target__none(&target))
Jiri Olsae0547312015-11-05 15:40:45 +01001347 usage_with_options(stat_usage, stat_options);
David Ahernac3063b2013-09-30 07:37:37 -06001348
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001349 if (run_count < 0) {
Namhyung Kimcc03c542013-11-01 16:33:15 +09001350 pr_err("Run count must be a positive number\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001351 parse_options_usage(stat_usage, stat_options, "r", 1);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001352 goto out;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001353 } else if (run_count == 0) {
1354 forever = true;
1355 run_count = 1;
1356 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001357
Jiri Olsa421a50f2015-07-21 14:31:22 +02001358 if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
Jiri Olsa32b8af82015-06-26 11:29:27 +02001359 fprintf(stderr, "The --per-thread option is only available "
1360 "when monitoring via -p -t options.\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001361 parse_options_usage(NULL, stat_options, "p", 1);
1362 parse_options_usage(NULL, stat_options, "t", 1);
Jiri Olsa32b8af82015-06-26 11:29:27 +02001363 goto out;
1364 }
1365
1366 /*
1367 * no_aggr, cgroup are for system-wide only
1368 * --per-thread is aggregated per thread, we dont mix it with cpu mode
1369 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001370 if (((stat_config.aggr_mode != AGGR_GLOBAL &&
1371 stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001372 !target__has_cpu(&target)) {
Stephane Eranian023695d2011-02-14 11:20:01 +02001373 fprintf(stderr, "both cgroup and no-aggregation "
1374 "modes only available in system-wide mode\n");
1375
Jiri Olsae0547312015-11-05 15:40:45 +01001376 parse_options_usage(stat_usage, stat_options, "G", 1);
1377 parse_options_usage(NULL, stat_options, "A", 1);
1378 parse_options_usage(NULL, stat_options, "a", 1);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001379 goto out;
Stephane Eraniand7e7a452013-02-06 15:46:02 +01001380 }
1381
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001382 if (add_default_attributes())
1383 goto out;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001384
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001385 target__validate(&target);
Arnaldo Carvalho de Melo5c98d4662011-01-03 17:53:33 -02001386
Namhyung Kim77a6f012012-05-07 14:09:04 +09001387 if (perf_evlist__create_maps(evsel_list, &target) < 0) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001388 if (target__has_task(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001389 pr_err("Problems finding threads of monitor\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001390 parse_options_usage(stat_usage, stat_options, "p", 1);
1391 parse_options_usage(NULL, stat_options, "t", 1);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001392 } else if (target__has_cpu(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001393 perror("failed to parse CPUs map");
Jiri Olsae0547312015-11-05 15:40:45 +01001394 parse_options_usage(stat_usage, stat_options, "C", 1);
1395 parse_options_usage(NULL, stat_options, "a", 1);
Namhyung Kimcc03c542013-11-01 16:33:15 +09001396 }
1397 goto out;
Arnaldo Carvalho de Melo60d567e2011-01-03 17:49:48 -02001398 }
Jiri Olsa32b8af82015-06-26 11:29:27 +02001399
1400 /*
1401 * Initialize thread_map with comm names,
1402 * so we could print it out on output.
1403 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001404 if (stat_config.aggr_mode == AGGR_THREAD)
Jiri Olsa32b8af82015-06-26 11:29:27 +02001405 thread_map__read_comms(evsel_list->threads);
1406
Stephane Eranian13370a92013-01-29 12:47:44 +01001407 if (interval && interval < 100) {
Kan Liang19afd102015-10-02 05:04:34 -04001408 if (interval < 10) {
1409 pr_err("print interval must be >= 10ms\n");
Jiri Olsae0547312015-11-05 15:40:45 +01001410 parse_options_usage(stat_usage, stat_options, "I", 1);
Kan Liang19afd102015-10-02 05:04:34 -04001411 goto out;
1412 } else
1413 pr_warning("print interval < 100ms. "
1414 "The overhead percentage could be high in some cases. "
1415 "Please proceed with caution.\n");
Stephane Eranian13370a92013-01-29 12:47:44 +01001416 }
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001417
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001418 if (perf_evlist__alloc_stats(evsel_list, interval))
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001419 goto out;
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001420
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001421 if (perf_stat_init_aggr_mode())
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001422 goto out;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001423
Ingo Molnar58d7e992009-05-15 11:03:23 +02001424 /*
1425 * We dont want to block the signals - that would cause
1426 * child tasks to inherit that and Ctrl-C would not work.
1427 * What we want is for Ctrl-C to work in the exec()-ed
1428 * task, but being ignored by perf stat itself:
1429 */
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001430 atexit(sig_atexit);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001431 if (!forever)
1432 signal(SIGINT, skip_signal);
Stephane Eranian13370a92013-01-29 12:47:44 +01001433 signal(SIGCHLD, skip_signal);
Ingo Molnar58d7e992009-05-15 11:03:23 +02001434 signal(SIGALRM, skip_signal);
1435 signal(SIGABRT, skip_signal);
1436
Ingo Molnar42202dd2009-06-13 14:57:28 +02001437 status = 0;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001438 for (run_idx = 0; forever || run_idx < run_count; run_idx++) {
Ingo Molnar42202dd2009-06-13 14:57:28 +02001439 if (run_count != 1 && verbose)
Stephane Eranian4aa90152011-08-15 22:22:33 +02001440 fprintf(output, "[ perf stat: executing run #%d ... ]\n",
1441 run_idx + 1);
Ingo Molnarf9cef0a2011-04-28 18:17:11 +02001442
Ingo Molnar42202dd2009-06-13 14:57:28 +02001443 status = run_perf_stat(argc, argv);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001444 if (forever && status != -1) {
Jiri Olsad4f63a42015-06-26 11:29:26 +02001445 print_counters(NULL, argc, argv);
Jiri Olsa254ecbc2015-06-26 11:29:13 +02001446 perf_stat__reset_stats();
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001447 }
Ingo Molnar42202dd2009-06-13 14:57:28 +02001448 }
1449
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001450 if (!forever && status != -1 && !interval)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001451 print_counters(NULL, argc, argv);
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001452
Masami Hiramatsu544c2ae2015-12-09 11:11:27 +09001453 perf_stat__exit_aggr_mode();
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001454 perf_evlist__free_stats(evsel_list);
Arnaldo Carvalho de Melo0015e2e2011-02-01 16:18:10 -02001455out:
1456 perf_evlist__delete(evsel_list);
Ingo Molnar42202dd2009-06-13 14:57:28 +02001457 return status;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001458}