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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"
Ingo Molnarddcacfa2009-04-20 15:37:32 +020061
Peter Zijlstra1f16c572012-10-23 13:40:14 +020062#include <stdlib.h>
Ingo Molnarddcacfa2009-04-20 15:37:32 +020063#include <sys/prctl.h>
Stephane Eranian5af52b52010-05-18 15:00:01 +020064#include <locale.h>
Peter Zijlstra16c8a102009-05-05 17:50:27 +020065
Stephane Eraniand7470b62010-12-01 18:49:05 +020066#define DEFAULT_SEPARATOR " "
David Ahern2cee77c2011-05-30 08:55:59 -060067#define CNTR_NOT_SUPPORTED "<not supported>"
68#define CNTR_NOT_COUNTED "<not counted>"
Stephane Eraniand7470b62010-12-01 18:49:05 +020069
Jiri Olsad4f63a42015-06-26 11:29:26 +020070static void print_counters(struct timespec *ts, int argc, const char **argv);
Stephane Eranian13370a92013-01-29 12:47:44 +010071
Andi Kleen4cabc3d2013-08-21 16:47:26 -070072/* Default events used for perf stat -T */
Jiri Olsaa4547422015-06-03 16:25:53 +020073static const char *transaction_attrs = {
74 "task-clock,"
Andi Kleen4cabc3d2013-08-21 16:47:26 -070075 "{"
76 "instructions,"
77 "cycles,"
78 "cpu/cycles-t/,"
79 "cpu/tx-start/,"
80 "cpu/el-start/,"
81 "cpu/cycles-ct/"
82 "}"
83};
84
85/* More limited version when the CPU does not have all events. */
Jiri Olsaa4547422015-06-03 16:25:53 +020086static const char * transaction_limited_attrs = {
87 "task-clock,"
Andi Kleen4cabc3d2013-08-21 16:47:26 -070088 "{"
89 "instructions,"
90 "cycles,"
91 "cpu/cycles-t/,"
92 "cpu/tx-start/"
93 "}"
94};
95
Robert Richter666e6d42012-04-05 18:26:27 +020096static struct perf_evlist *evsel_list;
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020097
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -030098static struct target target = {
Namhyung Kim77a6f012012-05-07 14:09:04 +090099 .uid = UINT_MAX,
100};
Jaswinder Singh Rajput3d632592009-06-24 18:19:34 +0530101
102static int run_count = 1;
Stephane Eranian2e6cdf92010-05-12 10:40:01 +0200103static bool no_inherit = false;
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200104static volatile pid_t child_pid = -1;
Ian Munsiec0555642010-04-13 18:37:33 +1000105static bool null_run = false;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +0200106static int detailed_run = 0;
Andi Kleen4cabc3d2013-08-21 16:47:26 -0700107static bool transaction_run;
Arnaldo Carvalho de Melo201e0b02010-12-01 17:53:27 -0200108static bool big_num = true;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200109static int big_num_opt = -1;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200110static const char *csv_sep = NULL;
111static bool csv_output = false;
Lin Ming43bece72011-08-17 18:42:07 +0800112static bool group = false;
Stephane Eranian4aa90152011-08-15 22:22:33 +0200113static FILE *output = NULL;
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200114static const char *pre_cmd = NULL;
115static const char *post_cmd = NULL;
116static bool sync_run = false;
Stephane Eranian13370a92013-01-29 12:47:44 +0100117static unsigned int interval = 0;
Andi Kleen41191682013-08-02 17:41:11 -0700118static unsigned int initial_delay = 0;
Stephane Eranian410136f2013-11-12 17:58:49 +0100119static unsigned int unit_width = 4; /* strlen("unit") */
Frederik Deweerdta7e191c2013-03-01 13:02:27 -0500120static bool forever = false;
Stephane Eranian13370a92013-01-29 12:47:44 +0100121static struct timespec ref_time;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100122static struct cpu_map *aggr_map;
123static int (*aggr_get_id)(struct cpu_map *m, int cpu);
Stephane Eranian5af52b52010-05-18 15:00:01 +0200124
Liming Wang60666c62009-12-31 16:05:50 +0800125static volatile int done = 0;
126
Jiri Olsa421a50f2015-07-21 14:31:22 +0200127static struct perf_stat_config stat_config = {
128 .aggr_mode = AGGR_GLOBAL,
Jiri Olsa711a5722015-07-21 14:31:23 +0200129 .scale = true,
Jiri Olsa421a50f2015-07-21 14:31:22 +0200130};
131
Stephane Eranian13370a92013-01-29 12:47:44 +0100132static inline void diff_timespec(struct timespec *r, struct timespec *a,
133 struct timespec *b)
134{
135 r->tv_sec = a->tv_sec - b->tv_sec;
136 if (a->tv_nsec < b->tv_nsec) {
137 r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec;
138 r->tv_sec--;
139 } else {
140 r->tv_nsec = a->tv_nsec - b->tv_nsec ;
141 }
142}
143
Jiri Olsa254ecbc2015-06-26 11:29:13 +0200144static void perf_stat__reset_stats(void)
145{
146 perf_evlist__reset_stats(evsel_list);
Jiri Olsaf87027b2015-06-03 16:25:59 +0200147 perf_stat__reset_shadow_stats();
Jiri Olsa1eda3b22015-06-03 16:25:55 +0200148}
149
Jiri Olsacac21422012-11-12 18:34:00 +0100150static int create_perf_stat_counter(struct perf_evsel *evsel)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200151{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200152 struct perf_event_attr *attr = &evsel->attr;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200153
Jiri Olsa711a5722015-07-21 14:31:23 +0200154 if (stat_config.scale)
Ingo Molnara21ca2c2009-06-06 09:58:57 +0200155 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
156 PERF_FORMAT_TOTAL_TIME_RUNNING;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200157
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200158 attr->inherit = !no_inherit;
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300159
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300160 if (target__has_cpu(&target))
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300161 return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
Stephane Eranian5622c072012-04-27 14:45:38 +0200162
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300163 if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200164 attr->disabled = 1;
Andi Kleen41191682013-08-02 17:41:11 -0700165 if (!initial_delay)
166 attr->enable_on_exec = 1;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200167 }
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300168
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300169 return perf_evsel__open_per_thread(evsel, evsel_list->threads);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200170}
171
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200172/*
173 * Does the counter have nsecs as a unit?
174 */
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200175static inline int nsec_counter(struct perf_evsel *evsel)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200176{
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200177 if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
178 perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200179 return 1;
180
181 return 0;
182}
183
Jiri Olsa779d0b992014-11-21 10:31:14 +0100184static void zero_per_pkg(struct perf_evsel *counter)
185{
186 if (counter->per_pkg_mask)
187 memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
188}
189
190static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
191{
192 unsigned long *mask = counter->per_pkg_mask;
193 struct cpu_map *cpus = perf_evsel__cpus(counter);
194 int s;
195
196 *skip = false;
197
198 if (!counter->per_pkg)
199 return 0;
200
201 if (cpu_map__empty(cpus))
202 return 0;
203
204 if (!mask) {
205 mask = zalloc(MAX_NR_CPUS);
206 if (!mask)
207 return -ENOMEM;
208
209 counter->per_pkg_mask = mask;
210 }
211
212 s = cpu_map__get_socket(cpus, cpu);
213 if (s < 0)
214 return -1;
215
216 *skip = test_and_set_bit(s, mask) == 1;
217 return 0;
218}
219
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200220static int
221process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
222 struct perf_counts_values *count)
Jiri Olsa060c4f92014-11-21 10:31:08 +0100223{
Jiri Olsa1971f592014-11-21 10:31:10 +0100224 struct perf_counts_values *aggr = &evsel->counts->aggr;
Jiri Olsa779d0b992014-11-21 10:31:14 +0100225 static struct perf_counts_values zero;
226 bool skip = false;
227
228 if (check_per_pkg(evsel, cpu, &skip)) {
229 pr_err("failed to read per-pkg counter\n");
230 return -1;
231 }
232
233 if (skip)
234 count = &zero;
Jiri Olsa1971f592014-11-21 10:31:10 +0100235
Jiri Olsa421a50f2015-07-21 14:31:22 +0200236 switch (stat_config.aggr_mode) {
Jiri Olsa32b8af82015-06-26 11:29:27 +0200237 case AGGR_THREAD:
Jiri Olsa060c4f92014-11-21 10:31:08 +0100238 case AGGR_CORE:
239 case AGGR_SOCKET:
240 case AGGR_NONE:
Jiri Olsa6c0345b2014-11-21 10:31:15 +0100241 if (!evsel->snapshot)
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200242 perf_evsel__compute_deltas(evsel, cpu, thread, count);
Jiri Olsa711a5722015-07-21 14:31:23 +0200243 perf_counts_values__scale(count, stat_config.scale, NULL);
Jiri Olsa421a50f2015-07-21 14:31:22 +0200244 if (stat_config.aggr_mode == AGGR_NONE)
Jiri Olsaf87027b2015-06-03 16:25:59 +0200245 perf_stat__update_shadow_stats(evsel, count->values, cpu);
Jiri Olsa060c4f92014-11-21 10:31:08 +0100246 break;
247 case AGGR_GLOBAL:
Jiri Olsa1971f592014-11-21 10:31:10 +0100248 aggr->val += count->val;
Jiri Olsa711a5722015-07-21 14:31:23 +0200249 if (stat_config.scale) {
Jiri Olsa1971f592014-11-21 10:31:10 +0100250 aggr->ena += count->ena;
251 aggr->run += count->run;
252 }
Jiri Olsa060c4f92014-11-21 10:31:08 +0100253 default:
254 break;
255 }
256
257 return 0;
258}
259
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200260static int process_counter_maps(struct perf_evsel *counter)
261{
262 int nthreads = thread_map__nr(counter->threads);
263 int ncpus = perf_evsel__nr_cpus(counter);
264 int cpu, thread;
Jiri Olsa1971f592014-11-21 10:31:10 +0100265
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200266 if (counter->system_wide)
267 nthreads = 1;
268
269 for (thread = 0; thread < nthreads; thread++) {
270 for (cpu = 0; cpu < ncpus; cpu++) {
271 if (process_counter_values(counter, cpu, thread,
272 perf_counts(counter->counts, cpu, thread)))
273 return -1;
274 }
275 }
276
277 return 0;
278}
279
280static int process_counter(struct perf_evsel *counter)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200281{
Jiri Olsa1971f592014-11-21 10:31:10 +0100282 struct perf_counts_values *aggr = &counter->counts->aggr;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200283 struct perf_stat *ps = counter->priv;
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200284 u64 *count = counter->counts->aggr.values;
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200285 int i, ret;
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200286
Jiri Olsa1971f592014-11-21 10:31:10 +0100287 aggr->val = aggr->ena = aggr->run = 0;
Jiri Olsa5835e222015-06-26 11:29:25 +0200288 init_stats(ps->res_stats);
Jiri Olsa1971f592014-11-21 10:31:10 +0100289
Jiri Olsa32ce0a42015-06-26 11:29:21 +0200290 if (counter->per_pkg)
291 zero_per_pkg(counter);
292
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200293 ret = process_counter_maps(counter);
294 if (ret)
295 return ret;
296
Jiri Olsa421a50f2015-07-21 14:31:22 +0200297 if (stat_config.aggr_mode != AGGR_GLOBAL)
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200298 return 0;
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200299
Jiri Olsa6c0345b2014-11-21 10:31:15 +0100300 if (!counter->snapshot)
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200301 perf_evsel__compute_deltas(counter, -1, -1, aggr);
Jiri Olsa711a5722015-07-21 14:31:23 +0200302 perf_counts_values__scale(aggr, stat_config.scale, &counter->counts->scaled);
Jiri Olsa1971f592014-11-21 10:31:10 +0100303
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200304 for (i = 0; i < 3; i++)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200305 update_stats(&ps->res_stats[i], count[i]);
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200306
307 if (verbose) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200308 fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300309 perf_evsel__name(counter), count[0], count[1], count[2]);
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200310 }
311
Ingo Molnarbe1ac0d2009-05-29 09:10:54 +0200312 /*
313 * Save the full runtime - to allow normalization during printout:
314 */
Jiri Olsaf87027b2015-06-03 16:25:59 +0200315 perf_stat__update_shadow_stats(counter, count, 0);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200316
317 return 0;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200318}
319
320/*
321 * Read out the results of a single counter:
322 * do not aggregate counts across CPUs in system-wide mode
323 */
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200324static int read_counter(struct perf_evsel *counter)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200325{
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100326 int nthreads = thread_map__nr(evsel_list->threads);
327 int ncpus = perf_evsel__nr_cpus(counter);
328 int cpu, thread;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200329
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000330 if (!counter->supported)
331 return -ENOENT;
332
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100333 if (counter->system_wide)
334 nthreads = 1;
335
336 for (thread = 0; thread < nthreads; thread++) {
337 for (cpu = 0; cpu < ncpus; cpu++) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200338 struct perf_counts_values *count;
339
340 count = perf_counts(counter->counts, cpu, thread);
341 if (perf_evsel__read(counter, cpu, thread, count))
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100342 return -1;
343 }
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200344 }
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200345
346 return 0;
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200347}
348
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200349static void read_counters(bool close_counters)
Jiri Olsa106a94a2015-06-26 11:29:19 +0200350{
351 struct perf_evsel *counter;
Jiri Olsa106a94a2015-06-26 11:29:19 +0200352
353 evlist__for_each(evsel_list, counter) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200354 if (read_counter(counter))
355 pr_warning("failed to read counter %s\n", counter->name);
356
357 if (process_counter(counter))
358 pr_warning("failed to process counter %s\n", counter->name);
Jiri Olsa106a94a2015-06-26 11:29:19 +0200359
Jiri Olsa5fc472a2015-07-08 13:17:31 +0200360 if (close_counters) {
Jiri Olsa106a94a2015-06-26 11:29:19 +0200361 perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
362 thread_map__nr(evsel_list->threads));
363 }
364 }
365}
366
Jiri Olsaba411a92015-06-26 11:29:24 +0200367static void process_interval(void)
Stephane Eranian13370a92013-01-29 12:47:44 +0100368{
Stephane Eranian13370a92013-01-29 12:47:44 +0100369 struct timespec ts, rs;
Stephane Eranian13370a92013-01-29 12:47:44 +0100370
Jiri Olsa106a94a2015-06-26 11:29:19 +0200371 read_counters(false);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100372
Stephane Eranian13370a92013-01-29 12:47:44 +0100373 clock_gettime(CLOCK_MONOTONIC, &ts);
374 diff_timespec(&rs, &ts, &ref_time);
Stephane Eranian13370a92013-01-29 12:47:44 +0100375
Jiri Olsad4f63a42015-06-26 11:29:26 +0200376 print_counters(&rs, 0, NULL);
Stephane Eranian13370a92013-01-29 12:47:44 +0100377}
378
Andi Kleen41191682013-08-02 17:41:11 -0700379static void handle_initial_delay(void)
380{
381 struct perf_evsel *counter;
382
383 if (initial_delay) {
384 const int ncpus = cpu_map__nr(evsel_list->cpus),
385 nthreads = thread_map__nr(evsel_list->threads);
386
387 usleep(initial_delay * 1000);
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300388 evlist__for_each(evsel_list, counter)
Andi Kleen41191682013-08-02 17:41:11 -0700389 perf_evsel__enable(counter, ncpus, nthreads);
390 }
391}
392
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300393static volatile int workload_exec_errno;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300394
395/*
396 * perf_evlist__prepare_workload will send a SIGUSR1
397 * if the fork fails, since we asked by setting its
398 * want_signal to true.
399 */
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300400static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
401 void *ucontext __maybe_unused)
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300402{
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300403 workload_exec_errno = info->si_value.sival_int;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300404}
405
Namhyung Kimacf28922013-03-11 16:43:18 +0900406static int __run_perf_stat(int argc, const char **argv)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200407{
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300408 char msg[512];
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200409 unsigned long long t0, t1;
Jiri Olsacac21422012-11-12 18:34:00 +0100410 struct perf_evsel *counter;
Stephane Eranian13370a92013-01-29 12:47:44 +0100411 struct timespec ts;
Stephane Eranian410136f2013-11-12 17:58:49 +0100412 size_t l;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200413 int status = 0;
Zhang, Yanmin6be28502010-03-18 11:36:03 -0300414 const bool forks = (argc > 0);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200415
Stephane Eranian13370a92013-01-29 12:47:44 +0100416 if (interval) {
417 ts.tv_sec = interval / 1000;
418 ts.tv_nsec = (interval % 1000) * 1000000;
419 } else {
420 ts.tv_sec = 1;
421 ts.tv_nsec = 0;
422 }
423
Liming Wang60666c62009-12-31 16:05:50 +0800424 if (forks) {
Arnaldo Carvalho de Melo735f7e02014-01-03 14:56:49 -0300425 if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
426 workload_exec_failed_signal) < 0) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900427 perror("failed to prepare workload");
428 return -1;
Liming Wang60666c62009-12-31 16:05:50 +0800429 }
Namhyung Kimd20a47e2013-09-30 18:01:11 +0900430 child_pid = evsel_list->workload.pid;
Paul Mackerras051ae7f2009-06-29 21:13:21 +1000431 }
432
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200433 if (group)
Arnaldo Carvalho de Melo63dab222012-08-14 16:35:48 -0300434 perf_evlist__set_leader(evsel_list);
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200435
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300436 evlist__for_each(evsel_list, counter) {
Jiri Olsacac21422012-11-12 18:34:00 +0100437 if (create_perf_stat_counter(counter) < 0) {
David Ahern979987a2012-05-08 09:29:16 -0600438 /*
439 * PPC returns ENXIO for HW counters until 2.6.37
440 * (behavior changed with commit b0a873e).
441 */
Anton Blanchard38f6ae12011-12-02 09:38:33 +1100442 if (errno == EINVAL || errno == ENOSYS ||
David Ahern979987a2012-05-08 09:29:16 -0600443 errno == ENOENT || errno == EOPNOTSUPP ||
444 errno == ENXIO) {
David Ahernc63ca0c2011-04-29 16:04:15 -0600445 if (verbose)
446 ui__warning("%s event is not supported by the kernel.\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300447 perf_evsel__name(counter));
David Ahern2cee77c2011-05-30 08:55:59 -0600448 counter->supported = false;
Kan Liangcb5ef602015-06-11 02:32:40 -0400449
450 if ((counter->leader != counter) ||
451 !(counter->leader->nr_members > 1))
452 continue;
David Ahernc63ca0c2011-04-29 16:04:15 -0600453 }
Ingo Molnarede70292011-04-28 08:48:42 +0200454
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300455 perf_evsel__open_strerror(counter, &target,
456 errno, msg, sizeof(msg));
457 ui__error("%s\n", msg);
458
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200459 if (child_pid != -1)
460 kill(child_pid, SIGTERM);
David Ahernfceda7f2012-08-26 12:24:44 -0600461
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200462 return -1;
463 }
David Ahern2cee77c2011-05-30 08:55:59 -0600464 counter->supported = true;
Stephane Eranian410136f2013-11-12 17:58:49 +0100465
466 l = strlen(counter->unit);
467 if (l > unit_width)
468 unit_width = l;
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300469 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200470
Arnaldo Carvalho de Melo23d4aad2015-03-24 19:23:47 -0300471 if (perf_evlist__apply_filters(evsel_list, &counter)) {
472 error("failed to set filter \"%s\" on event %s with %d (%s)\n",
473 counter->filter, perf_evsel__name(counter), errno,
Masami Hiramatsu759e6122014-08-14 02:22:55 +0000474 strerror_r(errno, msg, sizeof(msg)));
Frederic Weisbeckercfd748a2011-03-14 16:40:30 +0100475 return -1;
476 }
477
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200478 /*
479 * Enable counters and exec the command:
480 */
481 t0 = rdclock();
Stephane Eranian13370a92013-01-29 12:47:44 +0100482 clock_gettime(CLOCK_MONOTONIC, &ref_time);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200483
Liming Wang60666c62009-12-31 16:05:50 +0800484 if (forks) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900485 perf_evlist__start_workload(evsel_list);
Andi Kleen41191682013-08-02 17:41:11 -0700486 handle_initial_delay();
Namhyung Kimacf28922013-03-11 16:43:18 +0900487
Stephane Eranian13370a92013-01-29 12:47:44 +0100488 if (interval) {
489 while (!waitpid(child_pid, &status, WNOHANG)) {
490 nanosleep(&ts, NULL);
Jiri Olsaba411a92015-06-26 11:29:24 +0200491 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100492 }
493 }
Liming Wang60666c62009-12-31 16:05:50 +0800494 wait(&status);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300495
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300496 if (workload_exec_errno) {
497 const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
498 pr_err("Workload failed: %s\n", emsg);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300499 return -1;
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300500 }
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300501
Andi Kleen33e49ea2011-09-15 14:31:40 -0700502 if (WIFSIGNALED(status))
503 psignal(WTERMSIG(status), argv[0]);
Liming Wang60666c62009-12-31 16:05:50 +0800504 } else {
Andi Kleen41191682013-08-02 17:41:11 -0700505 handle_initial_delay();
Stephane Eranian13370a92013-01-29 12:47:44 +0100506 while (!done) {
507 nanosleep(&ts, NULL);
508 if (interval)
Jiri Olsaba411a92015-06-26 11:29:24 +0200509 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100510 }
Liming Wang60666c62009-12-31 16:05:50 +0800511 }
Ingo Molnar44db76c2009-06-03 19:36:07 +0200512
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200513 t1 = rdclock();
514
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200515 update_stats(&walltime_nsecs_stats, t1 - t0);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200516
Jiri Olsa106a94a2015-06-26 11:29:19 +0200517 read_counters(true);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200518
Ingo Molnar42202dd2009-06-13 14:57:28 +0200519 return WEXITSTATUS(status);
520}
521
Arnaldo Carvalho de Melo41cde472014-01-03 17:34:42 -0300522static int run_perf_stat(int argc, const char **argv)
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200523{
524 int ret;
525
526 if (pre_cmd) {
527 ret = system(pre_cmd);
528 if (ret)
529 return ret;
530 }
531
532 if (sync_run)
533 sync();
534
535 ret = __run_perf_stat(argc, argv);
536 if (ret)
537 return ret;
538
539 if (post_cmd) {
540 ret = system(post_cmd);
541 if (ret)
542 return ret;
543 }
544
545 return ret;
546}
547
Andi Kleend73515c2015-03-11 07:16:27 -0700548static void print_running(u64 run, u64 ena)
549{
550 if (csv_output) {
551 fprintf(output, "%s%" PRIu64 "%s%.2f",
552 csv_sep,
553 run,
554 csv_sep,
555 ena ? 100.0 * run / ena : 100.0);
556 } else if (run != ena) {
557 fprintf(output, " (%.2f%%)", 100.0 * run / ena);
558 }
559}
560
Ingo Molnarf99844c2011-04-27 05:35:39 +0200561static void print_noise_pct(double total, double avg)
562{
Xiao Guangrong0007ece2012-09-17 16:31:14 +0800563 double pct = rel_stddev_stats(total, avg);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200564
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700565 if (csv_output)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200566 fprintf(output, "%s%.2f%%", csv_sep, pct);
Jim Cromiea1bca6c2011-09-07 17:14:02 -0600567 else if (pct)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200568 fprintf(output, " ( +-%6.2f%% )", pct);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200569}
570
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200571static void print_noise(struct perf_evsel *evsel, double avg)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200572{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200573 struct perf_stat *ps;
574
Peter Zijlstra849abde2009-09-04 18:23:38 +0200575 if (run_count == 1)
576 return;
577
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200578 ps = evsel->priv;
Ingo Molnarf99844c2011-04-27 05:35:39 +0200579 print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200580}
581
Stephane Eranian12c08a92013-02-14 13:57:29 +0100582static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200583{
Jiri Olsa421a50f2015-07-21 14:31:22 +0200584 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100585 case AGGR_CORE:
586 fprintf(output, "S%d-C%*d%s%*d%s",
587 cpu_map__id_to_socket(id),
588 csv_output ? 0 : -8,
589 cpu_map__id_to_cpu(id),
590 csv_sep,
591 csv_output ? 0 : 4,
592 nr,
593 csv_sep);
594 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100595 case AGGR_SOCKET:
596 fprintf(output, "S%*d%s%*d%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100597 csv_output ? 0 : -5,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100598 id,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100599 csv_sep,
600 csv_output ? 0 : 4,
601 nr,
602 csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100603 break;
604 case AGGR_NONE:
605 fprintf(output, "CPU%*d%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200606 csv_output ? 0 : -4,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100607 perf_evsel__cpus(evsel)->map[id], csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100608 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200609 case AGGR_THREAD:
610 fprintf(output, "%*s-%*d%s",
611 csv_output ? 0 : 16,
612 thread_map__comm(evsel->threads, id),
613 csv_output ? 0 : -8,
614 thread_map__pid(evsel->threads, id),
615 csv_sep);
616 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100617 case AGGR_GLOBAL:
618 default:
619 break;
620 }
621}
Stephane Eraniand7470b62010-12-01 18:49:05 +0200622
Andi Kleenda88c7f2014-09-24 13:50:46 -0700623static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100624{
625 double msecs = avg / 1e6;
Stephane Eranian410136f2013-11-12 17:58:49 +0100626 const char *fmt_v, *fmt_n;
David Ahern4bbe5a62013-09-28 14:28:00 -0600627 char name[25];
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100628
Stephane Eranian410136f2013-11-12 17:58:49 +0100629 fmt_v = csv_output ? "%.6f%s" : "%18.6f%s";
630 fmt_n = csv_output ? "%s" : "%-25s";
631
Andi Kleenda88c7f2014-09-24 13:50:46 -0700632 aggr_printout(evsel, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100633
David Ahern4bbe5a62013-09-28 14:28:00 -0600634 scnprintf(name, sizeof(name), "%s%s",
635 perf_evsel__name(evsel), csv_output ? "" : " (msec)");
Stephane Eranian410136f2013-11-12 17:58:49 +0100636
637 fprintf(output, fmt_v, msecs, csv_sep);
638
639 if (csv_output)
640 fprintf(output, "%s%s", evsel->unit, csv_sep);
641 else
642 fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep);
643
644 fprintf(output, fmt_n, name);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200645
Stephane Eranian023695d2011-02-14 11:20:01 +0200646 if (evsel->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200647 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200648
Stephane Eranian13370a92013-01-29 12:47:44 +0100649 if (csv_output || interval)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200650 return;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200651
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200652 if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Stephane Eranian4aa90152011-08-15 22:22:33 +0200653 fprintf(output, " # %8.3f CPUs utilized ",
654 avg / avg_stats(&walltime_nsecs_stats));
Namhyung Kim9dac6a22012-02-06 16:44:45 +0900655 else
656 fprintf(output, " ");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200657}
658
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200659static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
660{
661 double sc = evsel->scale;
662 const char *fmt;
663 int cpu = cpu_map__id_to_cpu(id);
664
665 if (csv_output) {
666 fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
667 } else {
668 if (big_num)
669 fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
670 else
671 fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
672 }
673
674 aggr_printout(evsel, id, nr);
675
Jiri Olsa421a50f2015-07-21 14:31:22 +0200676 if (stat_config.aggr_mode == AGGR_GLOBAL)
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200677 cpu = 0;
678
679 fprintf(output, fmt, avg, csv_sep);
680
681 if (evsel->unit)
682 fprintf(output, "%-*s%s",
683 csv_output ? 0 : unit_width,
684 evsel->unit, csv_sep);
685
686 fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel));
687
688 if (evsel->cgrp)
689 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
690
691 if (csv_output || interval)
692 return;
693
Jiri Olsa421a50f2015-07-21 14:31:22 +0200694 perf_stat__print_shadow_stats(output, evsel, avg, cpu,
695 stat_config.aggr_mode);
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200696}
697
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100698static void print_aggr(char *prefix)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100699{
700 struct perf_evsel *counter;
Stephane Eranian582ec0822013-07-05 19:06:45 +0200701 int cpu, cpu2, s, s2, id, nr;
Stephane Eranian410136f2013-11-12 17:58:49 +0100702 double uval;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100703 u64 ena, run, val;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100704
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100705 if (!(aggr_map || aggr_get_id))
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100706 return;
707
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100708 for (s = 0; s < aggr_map->nr; s++) {
709 id = aggr_map->map[s];
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300710 evlist__for_each(evsel_list, counter) {
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100711 val = ena = run = 0;
712 nr = 0;
713 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200714 cpu2 = perf_evsel__cpus(counter)->map[cpu];
715 s2 = aggr_get_id(evsel_list->cpus, cpu2);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100716 if (s2 != id)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100717 continue;
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200718 val += perf_counts(counter->counts, cpu, 0)->val;
719 ena += perf_counts(counter->counts, cpu, 0)->ena;
720 run += perf_counts(counter->counts, cpu, 0)->run;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100721 nr++;
722 }
723 if (prefix)
724 fprintf(output, "%s", prefix);
725
726 if (run == 0 || ena == 0) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200727 aggr_printout(counter, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100728
Stephane Eranian410136f2013-11-12 17:58:49 +0100729 fprintf(output, "%*s%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100730 csv_output ? 0 : 18,
731 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100732 csv_sep);
733
734 fprintf(output, "%-*s%s",
735 csv_output ? 0 : unit_width,
736 counter->unit, csv_sep);
737
738 fprintf(output, "%*s",
739 csv_output ? 0 : -25,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100740 perf_evsel__name(counter));
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100741
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100742 if (counter->cgrp)
743 fprintf(output, "%s%s",
744 csv_sep, counter->cgrp->name);
745
Andi Kleend73515c2015-03-11 07:16:27 -0700746 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100747 fputc('\n', output);
748 continue;
749 }
Stephane Eranian410136f2013-11-12 17:58:49 +0100750 uval = val * counter->scale;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100751
752 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100753 nsec_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100754 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100755 abs_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100756
Andi Kleend73515c2015-03-11 07:16:27 -0700757 if (!csv_output)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100758 print_noise(counter, 1.0);
759
Andi Kleend73515c2015-03-11 07:16:27 -0700760 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100761 fputc('\n', output);
762 }
763 }
764}
765
Jiri Olsa32b8af82015-06-26 11:29:27 +0200766static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
767{
768 int nthreads = thread_map__nr(counter->threads);
769 int ncpus = cpu_map__nr(counter->cpus);
770 int cpu, thread;
771 double uval;
772
773 for (thread = 0; thread < nthreads; thread++) {
774 u64 ena = 0, run = 0, val = 0;
775
776 for (cpu = 0; cpu < ncpus; cpu++) {
777 val += perf_counts(counter->counts, cpu, thread)->val;
778 ena += perf_counts(counter->counts, cpu, thread)->ena;
779 run += perf_counts(counter->counts, cpu, thread)->run;
780 }
781
782 if (prefix)
783 fprintf(output, "%s", prefix);
784
785 uval = val * counter->scale;
786
787 if (nsec_counter(counter))
788 nsec_printout(thread, 0, counter, uval);
789 else
790 abs_printout(thread, 0, counter, uval);
791
792 if (!csv_output)
793 print_noise(counter, 1.0);
794
795 print_running(run, ena);
796 fputc('\n', output);
797 }
798}
799
Ingo Molnar42202dd2009-06-13 14:57:28 +0200800/*
801 * Print out the results of a single counter:
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200802 * aggregated counts in system-wide mode
Ingo Molnar42202dd2009-06-13 14:57:28 +0200803 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100804static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200805{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200806 struct perf_stat *ps = counter->priv;
807 double avg = avg_stats(&ps->res_stats[0]);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200808 int scaled = counter->counts->scaled;
Stephane Eranian410136f2013-11-12 17:58:49 +0100809 double uval;
Andi Kleend73515c2015-03-11 07:16:27 -0700810 double avg_enabled, avg_running;
811
812 avg_enabled = avg_stats(&ps->res_stats[1]);
813 avg_running = avg_stats(&ps->res_stats[2]);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200814
Stephane Eranian13370a92013-01-29 12:47:44 +0100815 if (prefix)
816 fprintf(output, "%s", prefix);
817
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000818 if (scaled == -1 || !counter->supported) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100819 fprintf(output, "%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200820 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600821 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100822 csv_sep);
823 fprintf(output, "%-*s%s",
824 csv_output ? 0 : unit_width,
825 counter->unit, csv_sep);
826 fprintf(output, "%*s",
827 csv_output ? 0 : -25,
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300828 perf_evsel__name(counter));
Stephane Eranian023695d2011-02-14 11:20:01 +0200829
830 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200831 fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200832
Andi Kleend73515c2015-03-11 07:16:27 -0700833 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200834 fputc('\n', output);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200835 return;
836 }
837
Stephane Eranian410136f2013-11-12 17:58:49 +0100838 uval = avg * counter->scale;
839
Ingo Molnar42202dd2009-06-13 14:57:28 +0200840 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100841 nsec_printout(-1, 0, counter, uval);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200842 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100843 abs_printout(-1, 0, counter, uval);
Peter Zijlstra849abde2009-09-04 18:23:38 +0200844
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700845 print_noise(counter, avg);
846
Andi Kleend73515c2015-03-11 07:16:27 -0700847 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200848 fprintf(output, "\n");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200849}
850
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200851/*
852 * Print out the results of a single counter:
853 * does not use aggregated count in system-wide
854 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100855static void print_counter(struct perf_evsel *counter, char *prefix)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200856{
857 u64 ena, run, val;
Stephane Eranian410136f2013-11-12 17:58:49 +0100858 double uval;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200859 int cpu;
860
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800861 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200862 val = perf_counts(counter->counts, cpu, 0)->val;
863 ena = perf_counts(counter->counts, cpu, 0)->ena;
864 run = perf_counts(counter->counts, cpu, 0)->run;
Stephane Eranian13370a92013-01-29 12:47:44 +0100865
866 if (prefix)
867 fprintf(output, "%s", prefix);
868
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200869 if (run == 0 || ena == 0) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100870 fprintf(output, "CPU%*d%s%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200871 csv_output ? 0 : -4,
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800872 perf_evsel__cpus(counter)->map[cpu], csv_sep,
Stephane Eraniand7470b62010-12-01 18:49:05 +0200873 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600874 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100875 csv_sep);
876
877 fprintf(output, "%-*s%s",
878 csv_output ? 0 : unit_width,
879 counter->unit, csv_sep);
880
881 fprintf(output, "%*s",
882 csv_output ? 0 : -25,
883 perf_evsel__name(counter));
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200884
Stephane Eranian023695d2011-02-14 11:20:01 +0200885 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200886 fprintf(output, "%s%s",
887 csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200888
Andi Kleend73515c2015-03-11 07:16:27 -0700889 print_running(run, ena);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200890 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200891 continue;
892 }
893
Stephane Eranian410136f2013-11-12 17:58:49 +0100894 uval = val * counter->scale;
895
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200896 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100897 nsec_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200898 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100899 abs_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200900
Andi Kleend73515c2015-03-11 07:16:27 -0700901 if (!csv_output)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200902 print_noise(counter, 1.0);
Andi Kleend73515c2015-03-11 07:16:27 -0700903 print_running(run, ena);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200904
Stephane Eranian4aa90152011-08-15 22:22:33 +0200905 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200906 }
907}
908
Jiri Olsad4f63a42015-06-26 11:29:26 +0200909static void print_interval(char *prefix, struct timespec *ts)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200910{
Jiri Olsad4f63a42015-06-26 11:29:26 +0200911 static int num_print_interval;
912
913 sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
914
915 if (num_print_interval == 0 && !csv_output) {
Jiri Olsa421a50f2015-07-21 14:31:22 +0200916 switch (stat_config.aggr_mode) {
Jiri Olsad4f63a42015-06-26 11:29:26 +0200917 case AGGR_SOCKET:
918 fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
919 break;
920 case AGGR_CORE:
921 fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
922 break;
923 case AGGR_NONE:
924 fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
925 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200926 case AGGR_THREAD:
927 fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
928 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200929 case AGGR_GLOBAL:
930 default:
931 fprintf(output, "# time counts %*s events\n", unit_width, "unit");
932 }
933 }
934
935 if (++num_print_interval == 25)
936 num_print_interval = 0;
937}
938
939static void print_header(int argc, const char **argv)
940{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200941 int i;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200942
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200943 fflush(stdout);
944
Stephane Eraniand7470b62010-12-01 18:49:05 +0200945 if (!csv_output) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200946 fprintf(output, "\n");
947 fprintf(output, " Performance counter stats for ");
David Ahern62d3b612013-09-28 14:27:58 -0600948 if (target.system_wide)
949 fprintf(output, "\'system wide");
950 else if (target.cpu_list)
951 fprintf(output, "\'CPU(s) %s", target.cpu_list);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300952 else if (!target__has_task(&target)) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200953 fprintf(output, "\'%s", argv[0]);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200954 for (i = 1; i < argc; i++)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200955 fprintf(output, " %s", argv[i]);
Namhyung Kim20f946b2012-04-26 14:15:16 +0900956 } else if (target.pid)
957 fprintf(output, "process id \'%s", target.pid);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200958 else
Namhyung Kim20f946b2012-04-26 14:15:16 +0900959 fprintf(output, "thread id \'%s", target.tid);
Ingo Molnar44db76c2009-06-03 19:36:07 +0200960
Stephane Eranian4aa90152011-08-15 22:22:33 +0200961 fprintf(output, "\'");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200962 if (run_count > 1)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200963 fprintf(output, " (%d runs)", run_count);
964 fprintf(output, ":\n\n");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200965 }
Jiri Olsad4f63a42015-06-26 11:29:26 +0200966}
967
968static void print_footer(void)
969{
970 if (!null_run)
971 fprintf(output, "\n");
972 fprintf(output, " %17.9f seconds time elapsed",
973 avg_stats(&walltime_nsecs_stats)/1e9);
974 if (run_count > 1) {
975 fprintf(output, " ");
976 print_noise_pct(stddev_stats(&walltime_nsecs_stats),
977 avg_stats(&walltime_nsecs_stats));
978 }
979 fprintf(output, "\n\n");
980}
981
982static void print_counters(struct timespec *ts, int argc, const char **argv)
983{
984 struct perf_evsel *counter;
985 char buf[64], *prefix = NULL;
986
987 if (interval)
988 print_interval(prefix = buf, ts);
989 else
990 print_header(argc, argv);
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200991
Jiri Olsa421a50f2015-07-21 14:31:22 +0200992 switch (stat_config.aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100993 case AGGR_CORE:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100994 case AGGR_SOCKET:
Jiri Olsad4f63a42015-06-26 11:29:26 +0200995 print_aggr(prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100996 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200997 case AGGR_THREAD:
998 evlist__for_each(evsel_list, counter)
999 print_aggr_thread(counter, prefix);
1000 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001001 case AGGR_GLOBAL:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -03001002 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001003 print_counter_aggr(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001004 break;
1005 case AGGR_NONE:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -03001006 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001007 print_counter(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001008 break;
1009 default:
1010 break;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +02001011 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001012
Jiri Olsad4f63a42015-06-26 11:29:26 +02001013 if (!interval && !csv_output)
1014 print_footer();
1015
1016 fflush(output);
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001017}
1018
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001019static volatile int signr = -1;
1020
Ingo Molnar52425192009-05-26 09:17:18 +02001021static void skip_signal(int signo)
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001022{
Stephane Eranian13370a92013-01-29 12:47:44 +01001023 if ((child_pid == -1) || interval)
Liming Wang60666c62009-12-31 16:05:50 +08001024 done = 1;
1025
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001026 signr = signo;
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001027 /*
1028 * render child_pid harmless
1029 * won't send SIGTERM to a random
1030 * process in case of race condition
1031 * and fast PID recycling
1032 */
1033 child_pid = -1;
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001034}
1035
1036static void sig_atexit(void)
1037{
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001038 sigset_t set, oset;
1039
1040 /*
1041 * avoid race condition with SIGCHLD handler
1042 * in skip_signal() which is modifying child_pid
1043 * goal is to avoid send SIGTERM to a random
1044 * process
1045 */
1046 sigemptyset(&set);
1047 sigaddset(&set, SIGCHLD);
1048 sigprocmask(SIG_BLOCK, &set, &oset);
1049
Chris Wilson933da832009-10-04 01:35:01 +01001050 if (child_pid != -1)
1051 kill(child_pid, SIGTERM);
1052
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001053 sigprocmask(SIG_SETMASK, &oset, NULL);
1054
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001055 if (signr == -1)
1056 return;
1057
1058 signal(signr, SIG_DFL);
1059 kill(getpid(), signr);
Ingo Molnar52425192009-05-26 09:17:18 +02001060}
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001061
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001062static int stat__set_big_num(const struct option *opt __maybe_unused,
1063 const char *s __maybe_unused, int unset)
Stephane Eraniand7470b62010-12-01 18:49:05 +02001064{
1065 big_num_opt = unset ? 0 : 1;
1066 return 0;
1067}
1068
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001069static int perf_stat_init_aggr_mode(void)
1070{
Jiri Olsa421a50f2015-07-21 14:31:22 +02001071 switch (stat_config.aggr_mode) {
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001072 case AGGR_SOCKET:
1073 if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
1074 perror("cannot build socket map");
1075 return -1;
1076 }
1077 aggr_get_id = cpu_map__get_socket;
1078 break;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001079 case AGGR_CORE:
1080 if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
1081 perror("cannot build core map");
1082 return -1;
1083 }
1084 aggr_get_id = cpu_map__get_core;
1085 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001086 case AGGR_NONE:
1087 case AGGR_GLOBAL:
Jiri Olsa32b8af82015-06-26 11:29:27 +02001088 case AGGR_THREAD:
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001089 default:
1090 break;
1091 }
1092 return 0;
1093}
1094
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001095/*
1096 * Add default attributes, if there were no attributes specified or
1097 * if -d/--detailed, -d -d or -d -d -d is used:
1098 */
1099static int add_default_attributes(void)
1100{
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001101 struct perf_event_attr default_attrs[] = {
1102
1103 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
1104 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES },
1105 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS },
1106 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS },
1107
1108 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES },
1109 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
1110 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
1111 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS },
1112 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
1113 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES },
1114
1115};
1116
1117/*
1118 * Detailed stats (-d), covering the L1 and last level data caches:
1119 */
1120 struct perf_event_attr detailed_attrs[] = {
1121
1122 { .type = PERF_TYPE_HW_CACHE,
1123 .config =
1124 PERF_COUNT_HW_CACHE_L1D << 0 |
1125 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1126 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1127
1128 { .type = PERF_TYPE_HW_CACHE,
1129 .config =
1130 PERF_COUNT_HW_CACHE_L1D << 0 |
1131 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1132 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1133
1134 { .type = PERF_TYPE_HW_CACHE,
1135 .config =
1136 PERF_COUNT_HW_CACHE_LL << 0 |
1137 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1138 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1139
1140 { .type = PERF_TYPE_HW_CACHE,
1141 .config =
1142 PERF_COUNT_HW_CACHE_LL << 0 |
1143 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1144 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1145};
1146
1147/*
1148 * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
1149 */
1150 struct perf_event_attr very_detailed_attrs[] = {
1151
1152 { .type = PERF_TYPE_HW_CACHE,
1153 .config =
1154 PERF_COUNT_HW_CACHE_L1I << 0 |
1155 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1156 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1157
1158 { .type = PERF_TYPE_HW_CACHE,
1159 .config =
1160 PERF_COUNT_HW_CACHE_L1I << 0 |
1161 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1162 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1163
1164 { .type = PERF_TYPE_HW_CACHE,
1165 .config =
1166 PERF_COUNT_HW_CACHE_DTLB << 0 |
1167 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1168 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1169
1170 { .type = PERF_TYPE_HW_CACHE,
1171 .config =
1172 PERF_COUNT_HW_CACHE_DTLB << 0 |
1173 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1174 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1175
1176 { .type = PERF_TYPE_HW_CACHE,
1177 .config =
1178 PERF_COUNT_HW_CACHE_ITLB << 0 |
1179 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1180 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1181
1182 { .type = PERF_TYPE_HW_CACHE,
1183 .config =
1184 PERF_COUNT_HW_CACHE_ITLB << 0 |
1185 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1186 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1187
1188};
1189
1190/*
1191 * Very, very detailed stats (-d -d -d), adding prefetch events:
1192 */
1193 struct perf_event_attr very_very_detailed_attrs[] = {
1194
1195 { .type = PERF_TYPE_HW_CACHE,
1196 .config =
1197 PERF_COUNT_HW_CACHE_L1D << 0 |
1198 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1199 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1200
1201 { .type = PERF_TYPE_HW_CACHE,
1202 .config =
1203 PERF_COUNT_HW_CACHE_L1D << 0 |
1204 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1205 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1206};
1207
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001208 /* Set attrs if no event is selected and !null_run: */
1209 if (null_run)
1210 return 0;
1211
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001212 if (transaction_run) {
1213 int err;
1214 if (pmu_have_event("cpu", "cycles-ct") &&
1215 pmu_have_event("cpu", "el-start"))
Jiri Olsaa4547422015-06-03 16:25:53 +02001216 err = parse_events(evsel_list, transaction_attrs, NULL);
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001217 else
Jiri Olsaa4547422015-06-03 16:25:53 +02001218 err = parse_events(evsel_list, transaction_limited_attrs, NULL);
1219 if (err) {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001220 fprintf(stderr, "Cannot set up transaction events\n");
1221 return -1;
1222 }
1223 return 0;
1224 }
1225
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001226 if (!evsel_list->nr_entries) {
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001227 if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001228 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001229 }
1230
1231 /* Detailed events get appended to the event list: */
1232
1233 if (detailed_run < 1)
1234 return 0;
1235
1236 /* Append detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001237 if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001238 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001239
1240 if (detailed_run < 2)
1241 return 0;
1242
1243 /* Append very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001244 if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001245 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001246
1247 if (detailed_run < 3)
1248 return 0;
1249
1250 /* Append very, very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001251 return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001252}
1253
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001254int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
Ingo Molnar52425192009-05-26 09:17:18 +02001255{
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001256 bool append_file = false;
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001257 int output_fd = 0;
1258 const char *output_name = NULL;
1259 const struct option options[] = {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001260 OPT_BOOLEAN('T', "transaction", &transaction_run,
1261 "hardware transaction statistics"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001262 OPT_CALLBACK('e', "event", &evsel_list, "event",
1263 "event selector. use 'perf list' to list available events",
1264 parse_events_option),
1265 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
1266 "event filter", parse_filter),
1267 OPT_BOOLEAN('i', "no-inherit", &no_inherit,
1268 "child tasks do not inherit counters"),
1269 OPT_STRING('p', "pid", &target.pid, "pid",
1270 "stat events on existing process id"),
1271 OPT_STRING('t', "tid", &target.tid, "tid",
1272 "stat events on existing thread id"),
1273 OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
1274 "system-wide collection from all CPUs"),
1275 OPT_BOOLEAN('g', "group", &group,
1276 "put the counters into a counter group"),
Jiri Olsa711a5722015-07-21 14:31:23 +02001277 OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001278 OPT_INCR('v', "verbose", &verbose,
1279 "be more verbose (show counter open errors, etc)"),
1280 OPT_INTEGER('r', "repeat", &run_count,
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001281 "repeat command and print average + stddev (max: 100, forever: 0)"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001282 OPT_BOOLEAN('n', "null", &null_run,
1283 "null run - dont start any counters"),
1284 OPT_INCR('d', "detailed", &detailed_run,
1285 "detailed run - start a lot of events"),
1286 OPT_BOOLEAN('S', "sync", &sync_run,
1287 "call sync() before starting a run"),
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -03001288 OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001289 "print large numbers with thousands\' separators",
1290 stat__set_big_num),
1291 OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
1292 "list of cpus to monitor in system-wide"),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001293 OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001294 "disable CPU count aggregation", AGGR_NONE),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001295 OPT_STRING('x', "field-separator", &csv_sep, "separator",
1296 "print counts with custom separator"),
1297 OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
1298 "monitor event in cgroup name only", parse_cgroups),
1299 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1300 OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
1301 OPT_INTEGER(0, "log-fd", &output_fd,
1302 "log output to fd, instead of stderr"),
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001303 OPT_STRING(0, "pre", &pre_cmd, "command",
1304 "command to run prior to the measured command"),
1305 OPT_STRING(0, "post", &post_cmd, "command",
1306 "command to run after to the measured command"),
Stephane Eranian13370a92013-01-29 12:47:44 +01001307 OPT_UINTEGER('I', "interval-print", &interval,
1308 "print counts at regular interval in ms (>= 100)"),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001309 OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001310 "aggregate counts per processor socket", AGGR_SOCKET),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001311 OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
Stephane Eranian12c08a92013-02-14 13:57:29 +01001312 "aggregate counts per physical processor core", AGGR_CORE),
Jiri Olsa421a50f2015-07-21 14:31:22 +02001313 OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
Jiri Olsa32b8af82015-06-26 11:29:27 +02001314 "aggregate counts per thread", AGGR_THREAD),
Andi Kleen41191682013-08-02 17:41:11 -07001315 OPT_UINTEGER('D', "delay", &initial_delay,
1316 "ms to wait before starting measurement after program start"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001317 OPT_END()
1318 };
1319 const char * const stat_usage[] = {
1320 "perf stat [<options>] [<command>]",
1321 NULL
1322 };
Namhyung Kimcc03c542013-11-01 16:33:15 +09001323 int status = -EINVAL, run_idx;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001324 const char *mode;
Ingo Molnar42202dd2009-06-13 14:57:28 +02001325
Stephane Eranian5af52b52010-05-18 15:00:01 +02001326 setlocale(LC_ALL, "");
1327
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001328 evsel_list = perf_evlist__new();
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001329 if (evsel_list == NULL)
1330 return -ENOMEM;
1331
Anton Blancharda0541232009-07-22 23:04:12 +10001332 argc = parse_options(argc, argv, options, stat_usage,
1333 PARSE_OPT_STOP_AT_NON_OPTION);
Stephane Eraniand7470b62010-12-01 18:49:05 +02001334
Stephane Eranian4aa90152011-08-15 22:22:33 +02001335 output = stderr;
1336 if (output_name && strcmp(output_name, "-"))
1337 output = NULL;
1338
Jim Cromie56f3bae2011-09-07 17:14:00 -06001339 if (output_name && output_fd) {
1340 fprintf(stderr, "cannot use both --output and --log-fd\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001341 parse_options_usage(stat_usage, options, "o", 1);
1342 parse_options_usage(NULL, options, "log-fd", 0);
1343 goto out;
Jim Cromie56f3bae2011-09-07 17:14:00 -06001344 }
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001345
1346 if (output_fd < 0) {
1347 fprintf(stderr, "argument to --log-fd must be a > 0\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001348 parse_options_usage(stat_usage, options, "log-fd", 0);
1349 goto out;
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001350 }
1351
Stephane Eranian4aa90152011-08-15 22:22:33 +02001352 if (!output) {
1353 struct timespec tm;
1354 mode = append_file ? "a" : "w";
1355
1356 output = fopen(output_name, mode);
1357 if (!output) {
1358 perror("failed to create output file");
David Ahernfceda7f2012-08-26 12:24:44 -06001359 return -1;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001360 }
1361 clock_gettime(CLOCK_REALTIME, &tm);
1362 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001363 } else if (output_fd > 0) {
Jim Cromie56f3bae2011-09-07 17:14:00 -06001364 mode = append_file ? "a" : "w";
1365 output = fdopen(output_fd, mode);
1366 if (!output) {
1367 perror("Failed opening logfd");
1368 return -errno;
1369 }
Stephane Eranian4aa90152011-08-15 22:22:33 +02001370 }
1371
Jim Cromied4ffd042011-09-07 17:14:03 -06001372 if (csv_sep) {
Stephane Eraniand7470b62010-12-01 18:49:05 +02001373 csv_output = true;
Jim Cromied4ffd042011-09-07 17:14:03 -06001374 if (!strcmp(csv_sep, "\\t"))
1375 csv_sep = "\t";
1376 } else
Stephane Eraniand7470b62010-12-01 18:49:05 +02001377 csv_sep = DEFAULT_SEPARATOR;
1378
1379 /*
1380 * let the spreadsheet do the pretty-printing
1381 */
1382 if (csv_output) {
Jim Cromie61a9f322011-09-07 17:14:04 -06001383 /* User explicitly passed -B? */
Stephane Eraniand7470b62010-12-01 18:49:05 +02001384 if (big_num_opt == 1) {
1385 fprintf(stderr, "-B option not supported with -x\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001386 parse_options_usage(stat_usage, options, "B", 1);
1387 parse_options_usage(NULL, options, "x", 1);
1388 goto out;
Stephane Eraniand7470b62010-12-01 18:49:05 +02001389 } else /* Nope, so disable big number formatting */
1390 big_num = false;
1391 } else if (big_num_opt == 0) /* User passed --no-big-num */
1392 big_num = false;
1393
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001394 if (!argc && target__none(&target))
Ingo Molnar52425192009-05-26 09:17:18 +02001395 usage_with_options(stat_usage, options);
David Ahernac3063b2013-09-30 07:37:37 -06001396
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001397 if (run_count < 0) {
Namhyung Kimcc03c542013-11-01 16:33:15 +09001398 pr_err("Run count must be a positive number\n");
1399 parse_options_usage(stat_usage, options, "r", 1);
1400 goto out;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001401 } else if (run_count == 0) {
1402 forever = true;
1403 run_count = 1;
1404 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001405
Jiri Olsa421a50f2015-07-21 14:31:22 +02001406 if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
Jiri Olsa32b8af82015-06-26 11:29:27 +02001407 fprintf(stderr, "The --per-thread option is only available "
1408 "when monitoring via -p -t options.\n");
1409 parse_options_usage(NULL, options, "p", 1);
1410 parse_options_usage(NULL, options, "t", 1);
1411 goto out;
1412 }
1413
1414 /*
1415 * no_aggr, cgroup are for system-wide only
1416 * --per-thread is aggregated per thread, we dont mix it with cpu mode
1417 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001418 if (((stat_config.aggr_mode != AGGR_GLOBAL &&
1419 stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001420 !target__has_cpu(&target)) {
Stephane Eranian023695d2011-02-14 11:20:01 +02001421 fprintf(stderr, "both cgroup and no-aggregation "
1422 "modes only available in system-wide mode\n");
1423
Namhyung Kimcc03c542013-11-01 16:33:15 +09001424 parse_options_usage(stat_usage, options, "G", 1);
1425 parse_options_usage(NULL, options, "A", 1);
1426 parse_options_usage(NULL, options, "a", 1);
1427 goto out;
Stephane Eraniand7e7a452013-02-06 15:46:02 +01001428 }
1429
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001430 if (add_default_attributes())
1431 goto out;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001432
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001433 target__validate(&target);
Arnaldo Carvalho de Melo5c98d4662011-01-03 17:53:33 -02001434
Namhyung Kim77a6f012012-05-07 14:09:04 +09001435 if (perf_evlist__create_maps(evsel_list, &target) < 0) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001436 if (target__has_task(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001437 pr_err("Problems finding threads of monitor\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001438 parse_options_usage(stat_usage, options, "p", 1);
1439 parse_options_usage(NULL, options, "t", 1);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001440 } else if (target__has_cpu(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001441 perror("failed to parse CPUs map");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001442 parse_options_usage(stat_usage, options, "C", 1);
1443 parse_options_usage(NULL, options, "a", 1);
1444 }
1445 goto out;
Arnaldo Carvalho de Melo60d567e2011-01-03 17:49:48 -02001446 }
Jiri Olsa32b8af82015-06-26 11:29:27 +02001447
1448 /*
1449 * Initialize thread_map with comm names,
1450 * so we could print it out on output.
1451 */
Jiri Olsa421a50f2015-07-21 14:31:22 +02001452 if (stat_config.aggr_mode == AGGR_THREAD)
Jiri Olsa32b8af82015-06-26 11:29:27 +02001453 thread_map__read_comms(evsel_list->threads);
1454
Stephane Eranian13370a92013-01-29 12:47:44 +01001455 if (interval && interval < 100) {
1456 pr_err("print interval must be >= 100ms\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001457 parse_options_usage(stat_usage, options, "I", 1);
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001458 goto out;
Stephane Eranian13370a92013-01-29 12:47:44 +01001459 }
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001460
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001461 if (perf_evlist__alloc_stats(evsel_list, interval))
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001462 goto out;
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001463
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001464 if (perf_stat_init_aggr_mode())
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001465 goto out;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001466
Ingo Molnar58d7e992009-05-15 11:03:23 +02001467 /*
1468 * We dont want to block the signals - that would cause
1469 * child tasks to inherit that and Ctrl-C would not work.
1470 * What we want is for Ctrl-C to work in the exec()-ed
1471 * task, but being ignored by perf stat itself:
1472 */
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001473 atexit(sig_atexit);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001474 if (!forever)
1475 signal(SIGINT, skip_signal);
Stephane Eranian13370a92013-01-29 12:47:44 +01001476 signal(SIGCHLD, skip_signal);
Ingo Molnar58d7e992009-05-15 11:03:23 +02001477 signal(SIGALRM, skip_signal);
1478 signal(SIGABRT, skip_signal);
1479
Ingo Molnar42202dd2009-06-13 14:57:28 +02001480 status = 0;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001481 for (run_idx = 0; forever || run_idx < run_count; run_idx++) {
Ingo Molnar42202dd2009-06-13 14:57:28 +02001482 if (run_count != 1 && verbose)
Stephane Eranian4aa90152011-08-15 22:22:33 +02001483 fprintf(output, "[ perf stat: executing run #%d ... ]\n",
1484 run_idx + 1);
Ingo Molnarf9cef0a2011-04-28 18:17:11 +02001485
Ingo Molnar42202dd2009-06-13 14:57:28 +02001486 status = run_perf_stat(argc, argv);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001487 if (forever && status != -1) {
Jiri Olsad4f63a42015-06-26 11:29:26 +02001488 print_counters(NULL, argc, argv);
Jiri Olsa254ecbc2015-06-26 11:29:13 +02001489 perf_stat__reset_stats();
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001490 }
Ingo Molnar42202dd2009-06-13 14:57:28 +02001491 }
1492
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001493 if (!forever && status != -1 && !interval)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001494 print_counters(NULL, argc, argv);
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001495
1496 perf_evlist__free_stats(evsel_list);
Arnaldo Carvalho de Melo0015e2e2011-02-01 16:18:10 -02001497out:
1498 perf_evlist__delete(evsel_list);
Ingo Molnar42202dd2009-06-13 14:57:28 +02001499 return status;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001500}