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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;
Ian Munsiec0555642010-04-13 18:37:33 +1000104static bool scale = true;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100105static enum aggr_mode aggr_mode = AGGR_GLOBAL;
Stephane Eraniand07f0b12013-06-04 17:44:26 +0200106static volatile pid_t child_pid = -1;
Ian Munsiec0555642010-04-13 18:37:33 +1000107static bool null_run = false;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +0200108static int detailed_run = 0;
Andi Kleen4cabc3d2013-08-21 16:47:26 -0700109static bool transaction_run;
Arnaldo Carvalho de Melo201e0b02010-12-01 17:53:27 -0200110static bool big_num = true;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200111static int big_num_opt = -1;
Stephane Eraniand7470b62010-12-01 18:49:05 +0200112static const char *csv_sep = NULL;
113static bool csv_output = false;
Lin Ming43bece72011-08-17 18:42:07 +0800114static bool group = false;
Stephane Eranian4aa90152011-08-15 22:22:33 +0200115static FILE *output = NULL;
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200116static const char *pre_cmd = NULL;
117static const char *post_cmd = NULL;
118static bool sync_run = false;
Stephane Eranian13370a92013-01-29 12:47:44 +0100119static unsigned int interval = 0;
Andi Kleen41191682013-08-02 17:41:11 -0700120static unsigned int initial_delay = 0;
Stephane Eranian410136f2013-11-12 17:58:49 +0100121static unsigned int unit_width = 4; /* strlen("unit") */
Frederik Deweerdta7e191c2013-03-01 13:02:27 -0500122static bool forever = false;
Stephane Eranian13370a92013-01-29 12:47:44 +0100123static struct timespec ref_time;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100124static struct cpu_map *aggr_map;
125static int (*aggr_get_id)(struct cpu_map *m, int cpu);
Stephane Eranian5af52b52010-05-18 15:00:01 +0200126
Liming Wang60666c62009-12-31 16:05:50 +0800127static volatile int done = 0;
128
Stephane Eranian13370a92013-01-29 12:47:44 +0100129static inline void diff_timespec(struct timespec *r, struct timespec *a,
130 struct timespec *b)
131{
132 r->tv_sec = a->tv_sec - b->tv_sec;
133 if (a->tv_nsec < b->tv_nsec) {
134 r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec;
135 r->tv_sec--;
136 } else {
137 r->tv_nsec = a->tv_nsec - b->tv_nsec ;
138 }
139}
140
Jiri Olsa254ecbc2015-06-26 11:29:13 +0200141static void perf_stat__reset_stats(void)
142{
143 perf_evlist__reset_stats(evsel_list);
Jiri Olsaf87027b2015-06-03 16:25:59 +0200144 perf_stat__reset_shadow_stats();
Jiri Olsa1eda3b22015-06-03 16:25:55 +0200145}
146
Jiri Olsacac21422012-11-12 18:34:00 +0100147static int create_perf_stat_counter(struct perf_evsel *evsel)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200148{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200149 struct perf_event_attr *attr = &evsel->attr;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200150
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200151 if (scale)
Ingo Molnara21ca2c2009-06-06 09:58:57 +0200152 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
153 PERF_FORMAT_TOTAL_TIME_RUNNING;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200154
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200155 attr->inherit = !no_inherit;
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300156
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300157 if (target__has_cpu(&target))
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300158 return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
Stephane Eranian5622c072012-04-27 14:45:38 +0200159
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300160 if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200161 attr->disabled = 1;
Andi Kleen41191682013-08-02 17:41:11 -0700162 if (!initial_delay)
163 attr->enable_on_exec = 1;
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200164 }
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300165
Arnaldo Carvalho de Melo594ac612012-12-13 13:13:07 -0300166 return perf_evsel__open_per_thread(evsel, evsel_list->threads);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200167}
168
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200169/*
170 * Does the counter have nsecs as a unit?
171 */
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200172static inline int nsec_counter(struct perf_evsel *evsel)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200173{
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200174 if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
175 perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200176 return 1;
177
178 return 0;
179}
180
Jiri Olsa779d0b992014-11-21 10:31:14 +0100181static void zero_per_pkg(struct perf_evsel *counter)
182{
183 if (counter->per_pkg_mask)
184 memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
185}
186
187static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
188{
189 unsigned long *mask = counter->per_pkg_mask;
190 struct cpu_map *cpus = perf_evsel__cpus(counter);
191 int s;
192
193 *skip = false;
194
195 if (!counter->per_pkg)
196 return 0;
197
198 if (cpu_map__empty(cpus))
199 return 0;
200
201 if (!mask) {
202 mask = zalloc(MAX_NR_CPUS);
203 if (!mask)
204 return -ENOMEM;
205
206 counter->per_pkg_mask = mask;
207 }
208
209 s = cpu_map__get_socket(cpus, cpu);
210 if (s < 0)
211 return -1;
212
213 *skip = test_and_set_bit(s, mask) == 1;
214 return 0;
215}
216
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200217static int
218process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
219 struct perf_counts_values *count)
Jiri Olsa060c4f92014-11-21 10:31:08 +0100220{
Jiri Olsa1971f592014-11-21 10:31:10 +0100221 struct perf_counts_values *aggr = &evsel->counts->aggr;
Jiri Olsa779d0b992014-11-21 10:31:14 +0100222 static struct perf_counts_values zero;
223 bool skip = false;
224
225 if (check_per_pkg(evsel, cpu, &skip)) {
226 pr_err("failed to read per-pkg counter\n");
227 return -1;
228 }
229
230 if (skip)
231 count = &zero;
Jiri Olsa1971f592014-11-21 10:31:10 +0100232
Jiri Olsa060c4f92014-11-21 10:31:08 +0100233 switch (aggr_mode) {
Jiri Olsa32b8af82015-06-26 11:29:27 +0200234 case AGGR_THREAD:
Jiri Olsa060c4f92014-11-21 10:31:08 +0100235 case AGGR_CORE:
236 case AGGR_SOCKET:
237 case AGGR_NONE:
Jiri Olsa6c0345b2014-11-21 10:31:15 +0100238 if (!evsel->snapshot)
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200239 perf_evsel__compute_deltas(evsel, cpu, thread, count);
Jiri Olsa060c4f92014-11-21 10:31:08 +0100240 perf_counts_values__scale(count, scale, NULL);
Andi Kleen56f0fd42015-03-11 08:28:01 -0700241 if (aggr_mode == AGGR_NONE)
Jiri Olsaf87027b2015-06-03 16:25:59 +0200242 perf_stat__update_shadow_stats(evsel, count->values, cpu);
Jiri Olsa060c4f92014-11-21 10:31:08 +0100243 break;
244 case AGGR_GLOBAL:
Jiri Olsa1971f592014-11-21 10:31:10 +0100245 aggr->val += count->val;
246 if (scale) {
247 aggr->ena += count->ena;
248 aggr->run += count->run;
249 }
Jiri Olsa060c4f92014-11-21 10:31:08 +0100250 default:
251 break;
252 }
253
254 return 0;
255}
256
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200257static int process_counter_maps(struct perf_evsel *counter)
258{
259 int nthreads = thread_map__nr(counter->threads);
260 int ncpus = perf_evsel__nr_cpus(counter);
261 int cpu, thread;
Jiri Olsa1971f592014-11-21 10:31:10 +0100262
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200263 if (counter->system_wide)
264 nthreads = 1;
265
266 for (thread = 0; thread < nthreads; thread++) {
267 for (cpu = 0; cpu < ncpus; cpu++) {
268 if (process_counter_values(counter, cpu, thread,
269 perf_counts(counter->counts, cpu, thread)))
270 return -1;
271 }
272 }
273
274 return 0;
275}
276
277static int process_counter(struct perf_evsel *counter)
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200278{
Jiri Olsa1971f592014-11-21 10:31:10 +0100279 struct perf_counts_values *aggr = &counter->counts->aggr;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200280 struct perf_stat *ps = counter->priv;
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200281 u64 *count = counter->counts->aggr.values;
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200282 int i, ret;
Ingo Molnarc04f5e52009-05-29 09:10:54 +0200283
Jiri Olsa1971f592014-11-21 10:31:10 +0100284 aggr->val = aggr->ena = aggr->run = 0;
Jiri Olsa5835e222015-06-26 11:29:25 +0200285 init_stats(ps->res_stats);
Jiri Olsa1971f592014-11-21 10:31:10 +0100286
Jiri Olsa32ce0a42015-06-26 11:29:21 +0200287 if (counter->per_pkg)
288 zero_per_pkg(counter);
289
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200290 ret = process_counter_maps(counter);
291 if (ret)
292 return ret;
293
294 if (aggr_mode != AGGR_GLOBAL)
295 return 0;
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200296
Jiri Olsa6c0345b2014-11-21 10:31:15 +0100297 if (!counter->snapshot)
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200298 perf_evsel__compute_deltas(counter, -1, -1, aggr);
Jiri Olsa1971f592014-11-21 10:31:10 +0100299 perf_counts_values__scale(aggr, scale, &counter->counts->scaled);
300
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200301 for (i = 0; i < 3; i++)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200302 update_stats(&ps->res_stats[i], count[i]);
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200303
304 if (verbose) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200305 fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300306 perf_evsel__name(counter), count[0], count[1], count[2]);
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200307 }
308
Ingo Molnarbe1ac0d2009-05-29 09:10:54 +0200309 /*
310 * Save the full runtime - to allow normalization during printout:
311 */
Jiri Olsaf87027b2015-06-03 16:25:59 +0200312 perf_stat__update_shadow_stats(counter, count, 0);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200313
314 return 0;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200315}
316
317/*
318 * Read out the results of a single counter:
319 * do not aggregate counts across CPUs in system-wide mode
320 */
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200321static int read_counter(struct perf_evsel *counter)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200322{
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100323 int nthreads = thread_map__nr(evsel_list->threads);
324 int ncpus = perf_evsel__nr_cpus(counter);
325 int cpu, thread;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200326
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000327 if (!counter->supported)
328 return -ENOENT;
329
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100330 if (counter->system_wide)
331 nthreads = 1;
332
333 for (thread = 0; thread < nthreads; thread++) {
334 for (cpu = 0; cpu < ncpus; cpu++) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200335 struct perf_counts_values *count;
336
337 count = perf_counts(counter->counts, cpu, thread);
338 if (perf_evsel__read(counter, cpu, thread, count))
Jiri Olsa9bf1a522014-11-21 10:31:09 +0100339 return -1;
340 }
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200341 }
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200342
343 return 0;
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200344}
345
Jiri Olsa106a94a2015-06-26 11:29:19 +0200346static void read_counters(bool close)
347{
348 struct perf_evsel *counter;
Jiri Olsa106a94a2015-06-26 11:29:19 +0200349
350 evlist__for_each(evsel_list, counter) {
Jiri Olsa3b3eb042015-06-26 11:29:20 +0200351 if (read_counter(counter))
352 pr_warning("failed to read counter %s\n", counter->name);
353
354 if (process_counter(counter))
355 pr_warning("failed to process counter %s\n", counter->name);
Jiri Olsa106a94a2015-06-26 11:29:19 +0200356
357 if (close) {
358 perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
359 thread_map__nr(evsel_list->threads));
360 }
361 }
362}
363
Jiri Olsaba411a92015-06-26 11:29:24 +0200364static void process_interval(void)
Stephane Eranian13370a92013-01-29 12:47:44 +0100365{
Stephane Eranian13370a92013-01-29 12:47:44 +0100366 struct timespec ts, rs;
Stephane Eranian13370a92013-01-29 12:47:44 +0100367
Jiri Olsa106a94a2015-06-26 11:29:19 +0200368 read_counters(false);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100369
Stephane Eranian13370a92013-01-29 12:47:44 +0100370 clock_gettime(CLOCK_MONOTONIC, &ts);
371 diff_timespec(&rs, &ts, &ref_time);
Stephane Eranian13370a92013-01-29 12:47:44 +0100372
Jiri Olsad4f63a42015-06-26 11:29:26 +0200373 print_counters(&rs, 0, NULL);
Stephane Eranian13370a92013-01-29 12:47:44 +0100374}
375
Andi Kleen41191682013-08-02 17:41:11 -0700376static void handle_initial_delay(void)
377{
378 struct perf_evsel *counter;
379
380 if (initial_delay) {
381 const int ncpus = cpu_map__nr(evsel_list->cpus),
382 nthreads = thread_map__nr(evsel_list->threads);
383
384 usleep(initial_delay * 1000);
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300385 evlist__for_each(evsel_list, counter)
Andi Kleen41191682013-08-02 17:41:11 -0700386 perf_evsel__enable(counter, ncpus, nthreads);
387 }
388}
389
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300390static volatile int workload_exec_errno;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300391
392/*
393 * perf_evlist__prepare_workload will send a SIGUSR1
394 * if the fork fails, since we asked by setting its
395 * want_signal to true.
396 */
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300397static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
398 void *ucontext __maybe_unused)
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300399{
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300400 workload_exec_errno = info->si_value.sival_int;
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300401}
402
Namhyung Kimacf28922013-03-11 16:43:18 +0900403static int __run_perf_stat(int argc, const char **argv)
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200404{
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300405 char msg[512];
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200406 unsigned long long t0, t1;
Jiri Olsacac21422012-11-12 18:34:00 +0100407 struct perf_evsel *counter;
Stephane Eranian13370a92013-01-29 12:47:44 +0100408 struct timespec ts;
Stephane Eranian410136f2013-11-12 17:58:49 +0100409 size_t l;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200410 int status = 0;
Zhang, Yanmin6be28502010-03-18 11:36:03 -0300411 const bool forks = (argc > 0);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200412
Stephane Eranian13370a92013-01-29 12:47:44 +0100413 if (interval) {
414 ts.tv_sec = interval / 1000;
415 ts.tv_nsec = (interval % 1000) * 1000000;
416 } else {
417 ts.tv_sec = 1;
418 ts.tv_nsec = 0;
419 }
420
Liming Wang60666c62009-12-31 16:05:50 +0800421 if (forks) {
Arnaldo Carvalho de Melo735f7e02014-01-03 14:56:49 -0300422 if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
423 workload_exec_failed_signal) < 0) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900424 perror("failed to prepare workload");
425 return -1;
Liming Wang60666c62009-12-31 16:05:50 +0800426 }
Namhyung Kimd20a47e2013-09-30 18:01:11 +0900427 child_pid = evsel_list->workload.pid;
Paul Mackerras051ae7f2009-06-29 21:13:21 +1000428 }
429
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200430 if (group)
Arnaldo Carvalho de Melo63dab222012-08-14 16:35:48 -0300431 perf_evlist__set_leader(evsel_list);
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200432
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300433 evlist__for_each(evsel_list, counter) {
Jiri Olsacac21422012-11-12 18:34:00 +0100434 if (create_perf_stat_counter(counter) < 0) {
David Ahern979987a2012-05-08 09:29:16 -0600435 /*
436 * PPC returns ENXIO for HW counters until 2.6.37
437 * (behavior changed with commit b0a873e).
438 */
Anton Blanchard38f6ae12011-12-02 09:38:33 +1100439 if (errno == EINVAL || errno == ENOSYS ||
David Ahern979987a2012-05-08 09:29:16 -0600440 errno == ENOENT || errno == EOPNOTSUPP ||
441 errno == ENXIO) {
David Ahernc63ca0c2011-04-29 16:04:15 -0600442 if (verbose)
443 ui__warning("%s event is not supported by the kernel.\n",
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300444 perf_evsel__name(counter));
David Ahern2cee77c2011-05-30 08:55:59 -0600445 counter->supported = false;
Kan Liangcb5ef602015-06-11 02:32:40 -0400446
447 if ((counter->leader != counter) ||
448 !(counter->leader->nr_members > 1))
449 continue;
David Ahernc63ca0c2011-04-29 16:04:15 -0600450 }
Ingo Molnarede70292011-04-28 08:48:42 +0200451
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300452 perf_evsel__open_strerror(counter, &target,
453 errno, msg, sizeof(msg));
454 ui__error("%s\n", msg);
455
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200456 if (child_pid != -1)
457 kill(child_pid, SIGTERM);
David Ahernfceda7f2012-08-26 12:24:44 -0600458
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200459 return -1;
460 }
David Ahern2cee77c2011-05-30 08:55:59 -0600461 counter->supported = true;
Stephane Eranian410136f2013-11-12 17:58:49 +0100462
463 l = strlen(counter->unit);
464 if (l > unit_width)
465 unit_width = l;
Arnaldo Carvalho de Melo084ab9f2010-03-22 13:10:28 -0300466 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200467
Arnaldo Carvalho de Melo23d4aad2015-03-24 19:23:47 -0300468 if (perf_evlist__apply_filters(evsel_list, &counter)) {
469 error("failed to set filter \"%s\" on event %s with %d (%s)\n",
470 counter->filter, perf_evsel__name(counter), errno,
Masami Hiramatsu759e6122014-08-14 02:22:55 +0000471 strerror_r(errno, msg, sizeof(msg)));
Frederic Weisbeckercfd748a2011-03-14 16:40:30 +0100472 return -1;
473 }
474
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200475 /*
476 * Enable counters and exec the command:
477 */
478 t0 = rdclock();
Stephane Eranian13370a92013-01-29 12:47:44 +0100479 clock_gettime(CLOCK_MONOTONIC, &ref_time);
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200480
Liming Wang60666c62009-12-31 16:05:50 +0800481 if (forks) {
Namhyung Kimacf28922013-03-11 16:43:18 +0900482 perf_evlist__start_workload(evsel_list);
Andi Kleen41191682013-08-02 17:41:11 -0700483 handle_initial_delay();
Namhyung Kimacf28922013-03-11 16:43:18 +0900484
Stephane Eranian13370a92013-01-29 12:47:44 +0100485 if (interval) {
486 while (!waitpid(child_pid, &status, WNOHANG)) {
487 nanosleep(&ts, NULL);
Jiri Olsaba411a92015-06-26 11:29:24 +0200488 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100489 }
490 }
Liming Wang60666c62009-12-31 16:05:50 +0800491 wait(&status);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300492
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300493 if (workload_exec_errno) {
494 const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
495 pr_err("Workload failed: %s\n", emsg);
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300496 return -1;
Arnaldo Carvalho de Melof33cbe72014-01-02 15:11:25 -0300497 }
Arnaldo Carvalho de Melo6af206f2013-12-28 15:45:08 -0300498
Andi Kleen33e49ea2011-09-15 14:31:40 -0700499 if (WIFSIGNALED(status))
500 psignal(WTERMSIG(status), argv[0]);
Liming Wang60666c62009-12-31 16:05:50 +0800501 } else {
Andi Kleen41191682013-08-02 17:41:11 -0700502 handle_initial_delay();
Stephane Eranian13370a92013-01-29 12:47:44 +0100503 while (!done) {
504 nanosleep(&ts, NULL);
505 if (interval)
Jiri Olsaba411a92015-06-26 11:29:24 +0200506 process_interval();
Stephane Eranian13370a92013-01-29 12:47:44 +0100507 }
Liming Wang60666c62009-12-31 16:05:50 +0800508 }
Ingo Molnar44db76c2009-06-03 19:36:07 +0200509
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200510 t1 = rdclock();
511
Peter Zijlstra9e9772c2009-09-04 15:36:08 +0200512 update_stats(&walltime_nsecs_stats, t1 - t0);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200513
Jiri Olsa106a94a2015-06-26 11:29:19 +0200514 read_counters(true);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200515
Ingo Molnar42202dd2009-06-13 14:57:28 +0200516 return WEXITSTATUS(status);
517}
518
Arnaldo Carvalho de Melo41cde472014-01-03 17:34:42 -0300519static int run_perf_stat(int argc, const char **argv)
Peter Zijlstra1f16c572012-10-23 13:40:14 +0200520{
521 int ret;
522
523 if (pre_cmd) {
524 ret = system(pre_cmd);
525 if (ret)
526 return ret;
527 }
528
529 if (sync_run)
530 sync();
531
532 ret = __run_perf_stat(argc, argv);
533 if (ret)
534 return ret;
535
536 if (post_cmd) {
537 ret = system(post_cmd);
538 if (ret)
539 return ret;
540 }
541
542 return ret;
543}
544
Andi Kleend73515c2015-03-11 07:16:27 -0700545static void print_running(u64 run, u64 ena)
546{
547 if (csv_output) {
548 fprintf(output, "%s%" PRIu64 "%s%.2f",
549 csv_sep,
550 run,
551 csv_sep,
552 ena ? 100.0 * run / ena : 100.0);
553 } else if (run != ena) {
554 fprintf(output, " (%.2f%%)", 100.0 * run / ena);
555 }
556}
557
Ingo Molnarf99844c2011-04-27 05:35:39 +0200558static void print_noise_pct(double total, double avg)
559{
Xiao Guangrong0007ece2012-09-17 16:31:14 +0800560 double pct = rel_stddev_stats(total, avg);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200561
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700562 if (csv_output)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200563 fprintf(output, "%s%.2f%%", csv_sep, pct);
Jim Cromiea1bca6c2011-09-07 17:14:02 -0600564 else if (pct)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200565 fprintf(output, " ( +-%6.2f%% )", pct);
Ingo Molnarf99844c2011-04-27 05:35:39 +0200566}
567
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200568static void print_noise(struct perf_evsel *evsel, double avg)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200569{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200570 struct perf_stat *ps;
571
Peter Zijlstra849abde2009-09-04 18:23:38 +0200572 if (run_count == 1)
573 return;
574
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200575 ps = evsel->priv;
Ingo Molnarf99844c2011-04-27 05:35:39 +0200576 print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200577}
578
Stephane Eranian12c08a92013-02-14 13:57:29 +0100579static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200580{
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100581 switch (aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100582 case AGGR_CORE:
583 fprintf(output, "S%d-C%*d%s%*d%s",
584 cpu_map__id_to_socket(id),
585 csv_output ? 0 : -8,
586 cpu_map__id_to_cpu(id),
587 csv_sep,
588 csv_output ? 0 : 4,
589 nr,
590 csv_sep);
591 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100592 case AGGR_SOCKET:
593 fprintf(output, "S%*d%s%*d%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100594 csv_output ? 0 : -5,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100595 id,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100596 csv_sep,
597 csv_output ? 0 : 4,
598 nr,
599 csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100600 break;
601 case AGGR_NONE:
602 fprintf(output, "CPU%*d%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200603 csv_output ? 0 : -4,
Stephane Eranian12c08a92013-02-14 13:57:29 +0100604 perf_evsel__cpus(evsel)->map[id], csv_sep);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100605 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200606 case AGGR_THREAD:
607 fprintf(output, "%*s-%*d%s",
608 csv_output ? 0 : 16,
609 thread_map__comm(evsel->threads, id),
610 csv_output ? 0 : -8,
611 thread_map__pid(evsel->threads, id),
612 csv_sep);
613 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100614 case AGGR_GLOBAL:
615 default:
616 break;
617 }
618}
Stephane Eraniand7470b62010-12-01 18:49:05 +0200619
Andi Kleenda88c7f2014-09-24 13:50:46 -0700620static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100621{
622 double msecs = avg / 1e6;
Stephane Eranian410136f2013-11-12 17:58:49 +0100623 const char *fmt_v, *fmt_n;
David Ahern4bbe5a62013-09-28 14:28:00 -0600624 char name[25];
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100625
Stephane Eranian410136f2013-11-12 17:58:49 +0100626 fmt_v = csv_output ? "%.6f%s" : "%18.6f%s";
627 fmt_n = csv_output ? "%s" : "%-25s";
628
Andi Kleenda88c7f2014-09-24 13:50:46 -0700629 aggr_printout(evsel, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100630
David Ahern4bbe5a62013-09-28 14:28:00 -0600631 scnprintf(name, sizeof(name), "%s%s",
632 perf_evsel__name(evsel), csv_output ? "" : " (msec)");
Stephane Eranian410136f2013-11-12 17:58:49 +0100633
634 fprintf(output, fmt_v, msecs, csv_sep);
635
636 if (csv_output)
637 fprintf(output, "%s%s", evsel->unit, csv_sep);
638 else
639 fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep);
640
641 fprintf(output, fmt_n, name);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200642
Stephane Eranian023695d2011-02-14 11:20:01 +0200643 if (evsel->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200644 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200645
Stephane Eranian13370a92013-01-29 12:47:44 +0100646 if (csv_output || interval)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200647 return;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200648
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200649 if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
Stephane Eranian4aa90152011-08-15 22:22:33 +0200650 fprintf(output, " # %8.3f CPUs utilized ",
651 avg / avg_stats(&walltime_nsecs_stats));
Namhyung Kim9dac6a22012-02-06 16:44:45 +0900652 else
653 fprintf(output, " ");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200654}
655
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200656static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
657{
658 double sc = evsel->scale;
659 const char *fmt;
660 int cpu = cpu_map__id_to_cpu(id);
661
662 if (csv_output) {
663 fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
664 } else {
665 if (big_num)
666 fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
667 else
668 fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
669 }
670
671 aggr_printout(evsel, id, nr);
672
673 if (aggr_mode == AGGR_GLOBAL)
674 cpu = 0;
675
676 fprintf(output, fmt, avg, csv_sep);
677
678 if (evsel->unit)
679 fprintf(output, "%-*s%s",
680 csv_output ? 0 : unit_width,
681 evsel->unit, csv_sep);
682
683 fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel));
684
685 if (evsel->cgrp)
686 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
687
688 if (csv_output || interval)
689 return;
690
Jiri Olsaf87027b2015-06-03 16:25:59 +0200691 perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode);
Jiri Olsa556b1fb2015-06-03 16:25:56 +0200692}
693
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100694static void print_aggr(char *prefix)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100695{
696 struct perf_evsel *counter;
Stephane Eranian582ec0822013-07-05 19:06:45 +0200697 int cpu, cpu2, s, s2, id, nr;
Stephane Eranian410136f2013-11-12 17:58:49 +0100698 double uval;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100699 u64 ena, run, val;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100700
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100701 if (!(aggr_map || aggr_get_id))
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100702 return;
703
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100704 for (s = 0; s < aggr_map->nr; s++) {
705 id = aggr_map->map[s];
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300706 evlist__for_each(evsel_list, counter) {
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100707 val = ena = run = 0;
708 nr = 0;
709 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200710 cpu2 = perf_evsel__cpus(counter)->map[cpu];
711 s2 = aggr_get_id(evsel_list->cpus, cpu2);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100712 if (s2 != id)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100713 continue;
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200714 val += perf_counts(counter->counts, cpu, 0)->val;
715 ena += perf_counts(counter->counts, cpu, 0)->ena;
716 run += perf_counts(counter->counts, cpu, 0)->run;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100717 nr++;
718 }
719 if (prefix)
720 fprintf(output, "%s", prefix);
721
722 if (run == 0 || ena == 0) {
Stephane Eranian582ec0822013-07-05 19:06:45 +0200723 aggr_printout(counter, id, nr);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100724
Stephane Eranian410136f2013-11-12 17:58:49 +0100725 fprintf(output, "%*s%s",
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100726 csv_output ? 0 : 18,
727 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100728 csv_sep);
729
730 fprintf(output, "%-*s%s",
731 csv_output ? 0 : unit_width,
732 counter->unit, csv_sep);
733
734 fprintf(output, "%*s",
735 csv_output ? 0 : -25,
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100736 perf_evsel__name(counter));
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100737
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100738 if (counter->cgrp)
739 fprintf(output, "%s%s",
740 csv_sep, counter->cgrp->name);
741
Andi Kleend73515c2015-03-11 07:16:27 -0700742 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100743 fputc('\n', output);
744 continue;
745 }
Stephane Eranian410136f2013-11-12 17:58:49 +0100746 uval = val * counter->scale;
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100747
748 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100749 nsec_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100750 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100751 abs_printout(id, nr, counter, uval);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100752
Andi Kleend73515c2015-03-11 07:16:27 -0700753 if (!csv_output)
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100754 print_noise(counter, 1.0);
755
Andi Kleend73515c2015-03-11 07:16:27 -0700756 print_running(run, ena);
Stephane Eraniand7e7a452013-02-06 15:46:02 +0100757 fputc('\n', output);
758 }
759 }
760}
761
Jiri Olsa32b8af82015-06-26 11:29:27 +0200762static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
763{
764 int nthreads = thread_map__nr(counter->threads);
765 int ncpus = cpu_map__nr(counter->cpus);
766 int cpu, thread;
767 double uval;
768
769 for (thread = 0; thread < nthreads; thread++) {
770 u64 ena = 0, run = 0, val = 0;
771
772 for (cpu = 0; cpu < ncpus; cpu++) {
773 val += perf_counts(counter->counts, cpu, thread)->val;
774 ena += perf_counts(counter->counts, cpu, thread)->ena;
775 run += perf_counts(counter->counts, cpu, thread)->run;
776 }
777
778 if (prefix)
779 fprintf(output, "%s", prefix);
780
781 uval = val * counter->scale;
782
783 if (nsec_counter(counter))
784 nsec_printout(thread, 0, counter, uval);
785 else
786 abs_printout(thread, 0, counter, uval);
787
788 if (!csv_output)
789 print_noise(counter, 1.0);
790
791 print_running(run, ena);
792 fputc('\n', output);
793 }
794}
795
Ingo Molnar42202dd2009-06-13 14:57:28 +0200796/*
797 * Print out the results of a single counter:
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200798 * aggregated counts in system-wide mode
Ingo Molnar42202dd2009-06-13 14:57:28 +0200799 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100800static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200801{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200802 struct perf_stat *ps = counter->priv;
803 double avg = avg_stats(&ps->res_stats[0]);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200804 int scaled = counter->counts->scaled;
Stephane Eranian410136f2013-11-12 17:58:49 +0100805 double uval;
Andi Kleend73515c2015-03-11 07:16:27 -0700806 double avg_enabled, avg_running;
807
808 avg_enabled = avg_stats(&ps->res_stats[1]);
809 avg_running = avg_stats(&ps->res_stats[2]);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200810
Stephane Eranian13370a92013-01-29 12:47:44 +0100811 if (prefix)
812 fprintf(output, "%s", prefix);
813
Suzuki K. Poulose3b4331d2015-02-13 18:40:58 +0000814 if (scaled == -1 || !counter->supported) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100815 fprintf(output, "%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200816 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600817 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100818 csv_sep);
819 fprintf(output, "%-*s%s",
820 csv_output ? 0 : unit_width,
821 counter->unit, csv_sep);
822 fprintf(output, "%*s",
823 csv_output ? 0 : -25,
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300824 perf_evsel__name(counter));
Stephane Eranian023695d2011-02-14 11:20:01 +0200825
826 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200827 fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200828
Andi Kleend73515c2015-03-11 07:16:27 -0700829 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200830 fputc('\n', output);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200831 return;
832 }
833
Stephane Eranian410136f2013-11-12 17:58:49 +0100834 uval = avg * counter->scale;
835
Ingo Molnar42202dd2009-06-13 14:57:28 +0200836 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100837 nsec_printout(-1, 0, counter, uval);
Ingo Molnar42202dd2009-06-13 14:57:28 +0200838 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100839 abs_printout(-1, 0, counter, uval);
Peter Zijlstra849abde2009-09-04 18:23:38 +0200840
Zhengyu He3ae9a34d2011-06-23 13:45:42 -0700841 print_noise(counter, avg);
842
Andi Kleend73515c2015-03-11 07:16:27 -0700843 print_running(avg_running, avg_enabled);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200844 fprintf(output, "\n");
Ingo Molnar42202dd2009-06-13 14:57:28 +0200845}
846
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200847/*
848 * Print out the results of a single counter:
849 * does not use aggregated count in system-wide
850 */
Stephane Eranian13370a92013-01-29 12:47:44 +0100851static void print_counter(struct perf_evsel *counter, char *prefix)
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200852{
853 u64 ena, run, val;
Stephane Eranian410136f2013-11-12 17:58:49 +0100854 double uval;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200855 int cpu;
856
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800857 for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200858 val = perf_counts(counter->counts, cpu, 0)->val;
859 ena = perf_counts(counter->counts, cpu, 0)->ena;
860 run = perf_counts(counter->counts, cpu, 0)->run;
Stephane Eranian13370a92013-01-29 12:47:44 +0100861
862 if (prefix)
863 fprintf(output, "%s", prefix);
864
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200865 if (run == 0 || ena == 0) {
Stephane Eranian410136f2013-11-12 17:58:49 +0100866 fprintf(output, "CPU%*d%s%*s%s",
Stephane Eraniand7470b62010-12-01 18:49:05 +0200867 csv_output ? 0 : -4,
Yan, Zheng7ae92e72012-09-10 15:53:50 +0800868 perf_evsel__cpus(counter)->map[cpu], csv_sep,
Stephane Eraniand7470b62010-12-01 18:49:05 +0200869 csv_output ? 0 : 18,
David Ahern2cee77c2011-05-30 08:55:59 -0600870 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
Stephane Eranian410136f2013-11-12 17:58:49 +0100871 csv_sep);
872
873 fprintf(output, "%-*s%s",
874 csv_output ? 0 : unit_width,
875 counter->unit, csv_sep);
876
877 fprintf(output, "%*s",
878 csv_output ? 0 : -25,
879 perf_evsel__name(counter));
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200880
Stephane Eranian023695d2011-02-14 11:20:01 +0200881 if (counter->cgrp)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200882 fprintf(output, "%s%s",
883 csv_sep, counter->cgrp->name);
Stephane Eranian023695d2011-02-14 11:20:01 +0200884
Andi Kleend73515c2015-03-11 07:16:27 -0700885 print_running(run, ena);
Stephane Eranian4aa90152011-08-15 22:22:33 +0200886 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200887 continue;
888 }
889
Stephane Eranian410136f2013-11-12 17:58:49 +0100890 uval = val * counter->scale;
891
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200892 if (nsec_counter(counter))
Stephane Eranian410136f2013-11-12 17:58:49 +0100893 nsec_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200894 else
Stephane Eranian410136f2013-11-12 17:58:49 +0100895 abs_printout(cpu, 0, counter, uval);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200896
Andi Kleend73515c2015-03-11 07:16:27 -0700897 if (!csv_output)
Stephane Eraniand7470b62010-12-01 18:49:05 +0200898 print_noise(counter, 1.0);
Andi Kleend73515c2015-03-11 07:16:27 -0700899 print_running(run, ena);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200900
Stephane Eranian4aa90152011-08-15 22:22:33 +0200901 fputc('\n', output);
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +0200902 }
903}
904
Jiri Olsad4f63a42015-06-26 11:29:26 +0200905static void print_interval(char *prefix, struct timespec *ts)
Ingo Molnar42202dd2009-06-13 14:57:28 +0200906{
Jiri Olsad4f63a42015-06-26 11:29:26 +0200907 static int num_print_interval;
908
909 sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
910
911 if (num_print_interval == 0 && !csv_output) {
912 switch (aggr_mode) {
913 case AGGR_SOCKET:
914 fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
915 break;
916 case AGGR_CORE:
917 fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
918 break;
919 case AGGR_NONE:
920 fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
921 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200922 case AGGR_THREAD:
923 fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
924 break;
Jiri Olsad4f63a42015-06-26 11:29:26 +0200925 case AGGR_GLOBAL:
926 default:
927 fprintf(output, "# time counts %*s events\n", unit_width, "unit");
928 }
929 }
930
931 if (++num_print_interval == 25)
932 num_print_interval = 0;
933}
934
935static void print_header(int argc, const char **argv)
936{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200937 int i;
Ingo Molnar42202dd2009-06-13 14:57:28 +0200938
Ingo Molnarddcacfa2009-04-20 15:37:32 +0200939 fflush(stdout);
940
Stephane Eraniand7470b62010-12-01 18:49:05 +0200941 if (!csv_output) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200942 fprintf(output, "\n");
943 fprintf(output, " Performance counter stats for ");
David Ahern62d3b612013-09-28 14:27:58 -0600944 if (target.system_wide)
945 fprintf(output, "\'system wide");
946 else if (target.cpu_list)
947 fprintf(output, "\'CPU(s) %s", target.cpu_list);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300948 else if (!target__has_task(&target)) {
Stephane Eranian4aa90152011-08-15 22:22:33 +0200949 fprintf(output, "\'%s", argv[0]);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200950 for (i = 1; i < argc; i++)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200951 fprintf(output, " %s", argv[i]);
Namhyung Kim20f946b2012-04-26 14:15:16 +0900952 } else if (target.pid)
953 fprintf(output, "process id \'%s", target.pid);
Stephane Eraniand7470b62010-12-01 18:49:05 +0200954 else
Namhyung Kim20f946b2012-04-26 14:15:16 +0900955 fprintf(output, "thread id \'%s", target.tid);
Ingo Molnar44db76c2009-06-03 19:36:07 +0200956
Stephane Eranian4aa90152011-08-15 22:22:33 +0200957 fprintf(output, "\'");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200958 if (run_count > 1)
Stephane Eranian4aa90152011-08-15 22:22:33 +0200959 fprintf(output, " (%d runs)", run_count);
960 fprintf(output, ":\n\n");
Stephane Eraniand7470b62010-12-01 18:49:05 +0200961 }
Jiri Olsad4f63a42015-06-26 11:29:26 +0200962}
963
964static void print_footer(void)
965{
966 if (!null_run)
967 fprintf(output, "\n");
968 fprintf(output, " %17.9f seconds time elapsed",
969 avg_stats(&walltime_nsecs_stats)/1e9);
970 if (run_count > 1) {
971 fprintf(output, " ");
972 print_noise_pct(stddev_stats(&walltime_nsecs_stats),
973 avg_stats(&walltime_nsecs_stats));
974 }
975 fprintf(output, "\n\n");
976}
977
978static void print_counters(struct timespec *ts, int argc, const char **argv)
979{
980 struct perf_evsel *counter;
981 char buf[64], *prefix = NULL;
982
983 if (interval)
984 print_interval(prefix = buf, ts);
985 else
986 print_header(argc, argv);
Ingo Molnar2996f5d2009-05-29 09:10:54 +0200987
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100988 switch (aggr_mode) {
Stephane Eranian12c08a92013-02-14 13:57:29 +0100989 case AGGR_CORE:
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100990 case AGGR_SOCKET:
Jiri Olsad4f63a42015-06-26 11:29:26 +0200991 print_aggr(prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100992 break;
Jiri Olsa32b8af82015-06-26 11:29:27 +0200993 case AGGR_THREAD:
994 evlist__for_each(evsel_list, counter)
995 print_aggr_thread(counter, prefix);
996 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +0100997 case AGGR_GLOBAL:
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300998 evlist__for_each(evsel_list, counter)
Jiri Olsad4f63a42015-06-26 11:29:26 +0200999 print_counter_aggr(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001000 break;
1001 case AGGR_NONE:
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(counter, prefix);
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001004 break;
1005 default:
1006 break;
Stephane Eranianf5b4a9c32010-11-16 11:05:01 +02001007 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001008
Jiri Olsad4f63a42015-06-26 11:29:26 +02001009 if (!interval && !csv_output)
1010 print_footer();
1011
1012 fflush(output);
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001013}
1014
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001015static volatile int signr = -1;
1016
Ingo Molnar52425192009-05-26 09:17:18 +02001017static void skip_signal(int signo)
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001018{
Stephane Eranian13370a92013-01-29 12:47:44 +01001019 if ((child_pid == -1) || interval)
Liming Wang60666c62009-12-31 16:05:50 +08001020 done = 1;
1021
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001022 signr = signo;
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001023 /*
1024 * render child_pid harmless
1025 * won't send SIGTERM to a random
1026 * process in case of race condition
1027 * and fast PID recycling
1028 */
1029 child_pid = -1;
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001030}
1031
1032static void sig_atexit(void)
1033{
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001034 sigset_t set, oset;
1035
1036 /*
1037 * avoid race condition with SIGCHLD handler
1038 * in skip_signal() which is modifying child_pid
1039 * goal is to avoid send SIGTERM to a random
1040 * process
1041 */
1042 sigemptyset(&set);
1043 sigaddset(&set, SIGCHLD);
1044 sigprocmask(SIG_BLOCK, &set, &oset);
1045
Chris Wilson933da832009-10-04 01:35:01 +01001046 if (child_pid != -1)
1047 kill(child_pid, SIGTERM);
1048
Stephane Eraniand07f0b12013-06-04 17:44:26 +02001049 sigprocmask(SIG_SETMASK, &oset, NULL);
1050
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001051 if (signr == -1)
1052 return;
1053
1054 signal(signr, SIG_DFL);
1055 kill(getpid(), signr);
Ingo Molnar52425192009-05-26 09:17:18 +02001056}
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001057
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001058static int stat__set_big_num(const struct option *opt __maybe_unused,
1059 const char *s __maybe_unused, int unset)
Stephane Eraniand7470b62010-12-01 18:49:05 +02001060{
1061 big_num_opt = unset ? 0 : 1;
1062 return 0;
1063}
1064
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001065static int perf_stat_init_aggr_mode(void)
1066{
1067 switch (aggr_mode) {
1068 case AGGR_SOCKET:
1069 if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
1070 perror("cannot build socket map");
1071 return -1;
1072 }
1073 aggr_get_id = cpu_map__get_socket;
1074 break;
Stephane Eranian12c08a92013-02-14 13:57:29 +01001075 case AGGR_CORE:
1076 if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
1077 perror("cannot build core map");
1078 return -1;
1079 }
1080 aggr_get_id = cpu_map__get_core;
1081 break;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001082 case AGGR_NONE:
1083 case AGGR_GLOBAL:
Jiri Olsa32b8af82015-06-26 11:29:27 +02001084 case AGGR_THREAD:
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001085 default:
1086 break;
1087 }
1088 return 0;
1089}
1090
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001091/*
1092 * Add default attributes, if there were no attributes specified or
1093 * if -d/--detailed, -d -d or -d -d -d is used:
1094 */
1095static int add_default_attributes(void)
1096{
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001097 struct perf_event_attr default_attrs[] = {
1098
1099 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
1100 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES },
1101 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS },
1102 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS },
1103
1104 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES },
1105 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
1106 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
1107 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS },
1108 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
1109 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES },
1110
1111};
1112
1113/*
1114 * Detailed stats (-d), covering the L1 and last level data caches:
1115 */
1116 struct perf_event_attr detailed_attrs[] = {
1117
1118 { .type = PERF_TYPE_HW_CACHE,
1119 .config =
1120 PERF_COUNT_HW_CACHE_L1D << 0 |
1121 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1122 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1123
1124 { .type = PERF_TYPE_HW_CACHE,
1125 .config =
1126 PERF_COUNT_HW_CACHE_L1D << 0 |
1127 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1128 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1129
1130 { .type = PERF_TYPE_HW_CACHE,
1131 .config =
1132 PERF_COUNT_HW_CACHE_LL << 0 |
1133 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1134 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1135
1136 { .type = PERF_TYPE_HW_CACHE,
1137 .config =
1138 PERF_COUNT_HW_CACHE_LL << 0 |
1139 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1140 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1141};
1142
1143/*
1144 * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
1145 */
1146 struct perf_event_attr very_detailed_attrs[] = {
1147
1148 { .type = PERF_TYPE_HW_CACHE,
1149 .config =
1150 PERF_COUNT_HW_CACHE_L1I << 0 |
1151 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1152 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1153
1154 { .type = PERF_TYPE_HW_CACHE,
1155 .config =
1156 PERF_COUNT_HW_CACHE_L1I << 0 |
1157 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1158 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1159
1160 { .type = PERF_TYPE_HW_CACHE,
1161 .config =
1162 PERF_COUNT_HW_CACHE_DTLB << 0 |
1163 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1164 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1165
1166 { .type = PERF_TYPE_HW_CACHE,
1167 .config =
1168 PERF_COUNT_HW_CACHE_DTLB << 0 |
1169 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1170 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1171
1172 { .type = PERF_TYPE_HW_CACHE,
1173 .config =
1174 PERF_COUNT_HW_CACHE_ITLB << 0 |
1175 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1176 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1177
1178 { .type = PERF_TYPE_HW_CACHE,
1179 .config =
1180 PERF_COUNT_HW_CACHE_ITLB << 0 |
1181 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1182 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1183
1184};
1185
1186/*
1187 * Very, very detailed stats (-d -d -d), adding prefetch events:
1188 */
1189 struct perf_event_attr very_very_detailed_attrs[] = {
1190
1191 { .type = PERF_TYPE_HW_CACHE,
1192 .config =
1193 PERF_COUNT_HW_CACHE_L1D << 0 |
1194 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1195 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1196
1197 { .type = PERF_TYPE_HW_CACHE,
1198 .config =
1199 PERF_COUNT_HW_CACHE_L1D << 0 |
1200 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1201 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1202};
1203
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001204 /* Set attrs if no event is selected and !null_run: */
1205 if (null_run)
1206 return 0;
1207
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001208 if (transaction_run) {
1209 int err;
1210 if (pmu_have_event("cpu", "cycles-ct") &&
1211 pmu_have_event("cpu", "el-start"))
Jiri Olsaa4547422015-06-03 16:25:53 +02001212 err = parse_events(evsel_list, transaction_attrs, NULL);
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001213 else
Jiri Olsaa4547422015-06-03 16:25:53 +02001214 err = parse_events(evsel_list, transaction_limited_attrs, NULL);
1215 if (err) {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001216 fprintf(stderr, "Cannot set up transaction events\n");
1217 return -1;
1218 }
1219 return 0;
1220 }
1221
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001222 if (!evsel_list->nr_entries) {
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001223 if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001224 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001225 }
1226
1227 /* Detailed events get appended to the event list: */
1228
1229 if (detailed_run < 1)
1230 return 0;
1231
1232 /* Append detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001233 if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001234 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001235
1236 if (detailed_run < 2)
1237 return 0;
1238
1239 /* Append very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001240 if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
Arnaldo Carvalho de Melo50d08e42011-11-04 09:10:59 -02001241 return -1;
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001242
1243 if (detailed_run < 3)
1244 return 0;
1245
1246 /* Append very, very detailed run extra attributes: */
Arnaldo Carvalho de Melo79695e12012-05-30 13:53:54 -03001247 return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001248}
1249
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001250int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
Ingo Molnar52425192009-05-26 09:17:18 +02001251{
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001252 bool append_file = false;
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001253 int output_fd = 0;
1254 const char *output_name = NULL;
1255 const struct option options[] = {
Andi Kleen4cabc3d2013-08-21 16:47:26 -07001256 OPT_BOOLEAN('T', "transaction", &transaction_run,
1257 "hardware transaction statistics"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001258 OPT_CALLBACK('e', "event", &evsel_list, "event",
1259 "event selector. use 'perf list' to list available events",
1260 parse_events_option),
1261 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
1262 "event filter", parse_filter),
1263 OPT_BOOLEAN('i', "no-inherit", &no_inherit,
1264 "child tasks do not inherit counters"),
1265 OPT_STRING('p', "pid", &target.pid, "pid",
1266 "stat events on existing process id"),
1267 OPT_STRING('t', "tid", &target.tid, "tid",
1268 "stat events on existing thread id"),
1269 OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
1270 "system-wide collection from all CPUs"),
1271 OPT_BOOLEAN('g', "group", &group,
1272 "put the counters into a counter group"),
1273 OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"),
1274 OPT_INCR('v', "verbose", &verbose,
1275 "be more verbose (show counter open errors, etc)"),
1276 OPT_INTEGER('r', "repeat", &run_count,
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001277 "repeat command and print average + stddev (max: 100, forever: 0)"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001278 OPT_BOOLEAN('n', "null", &null_run,
1279 "null run - dont start any counters"),
1280 OPT_INCR('d', "detailed", &detailed_run,
1281 "detailed run - start a lot of events"),
1282 OPT_BOOLEAN('S', "sync", &sync_run,
1283 "call sync() before starting a run"),
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -03001284 OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001285 "print large numbers with thousands\' separators",
1286 stat__set_big_num),
1287 OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
1288 "list of cpus to monitor in system-wide"),
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001289 OPT_SET_UINT('A', "no-aggr", &aggr_mode,
1290 "disable CPU count aggregation", AGGR_NONE),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001291 OPT_STRING('x', "field-separator", &csv_sep, "separator",
1292 "print counts with custom separator"),
1293 OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
1294 "monitor event in cgroup name only", parse_cgroups),
1295 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1296 OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
1297 OPT_INTEGER(0, "log-fd", &output_fd,
1298 "log output to fd, instead of stderr"),
Peter Zijlstra1f16c572012-10-23 13:40:14 +02001299 OPT_STRING(0, "pre", &pre_cmd, "command",
1300 "command to run prior to the measured command"),
1301 OPT_STRING(0, "post", &post_cmd, "command",
1302 "command to run after to the measured command"),
Stephane Eranian13370a92013-01-29 12:47:44 +01001303 OPT_UINTEGER('I', "interval-print", &interval,
1304 "print counts at regular interval in ms (>= 100)"),
Stephane Eraniand4304952013-02-14 13:57:28 +01001305 OPT_SET_UINT(0, "per-socket", &aggr_mode,
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001306 "aggregate counts per processor socket", AGGR_SOCKET),
Stephane Eranian12c08a92013-02-14 13:57:29 +01001307 OPT_SET_UINT(0, "per-core", &aggr_mode,
1308 "aggregate counts per physical processor core", AGGR_CORE),
Jiri Olsa32b8af82015-06-26 11:29:27 +02001309 OPT_SET_UINT(0, "per-thread", &aggr_mode,
1310 "aggregate counts per thread", AGGR_THREAD),
Andi Kleen41191682013-08-02 17:41:11 -07001311 OPT_UINTEGER('D', "delay", &initial_delay,
1312 "ms to wait before starting measurement after program start"),
Arnaldo Carvalho de Melob070a542012-10-01 15:20:58 -03001313 OPT_END()
1314 };
1315 const char * const stat_usage[] = {
1316 "perf stat [<options>] [<command>]",
1317 NULL
1318 };
Namhyung Kimcc03c542013-11-01 16:33:15 +09001319 int status = -EINVAL, run_idx;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001320 const char *mode;
Ingo Molnar42202dd2009-06-13 14:57:28 +02001321
Stephane Eranian5af52b52010-05-18 15:00:01 +02001322 setlocale(LC_ALL, "");
1323
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001324 evsel_list = perf_evlist__new();
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001325 if (evsel_list == NULL)
1326 return -ENOMEM;
1327
Anton Blancharda0541232009-07-22 23:04:12 +10001328 argc = parse_options(argc, argv, options, stat_usage,
1329 PARSE_OPT_STOP_AT_NON_OPTION);
Stephane Eraniand7470b62010-12-01 18:49:05 +02001330
Stephane Eranian4aa90152011-08-15 22:22:33 +02001331 output = stderr;
1332 if (output_name && strcmp(output_name, "-"))
1333 output = NULL;
1334
Jim Cromie56f3bae2011-09-07 17:14:00 -06001335 if (output_name && output_fd) {
1336 fprintf(stderr, "cannot use both --output and --log-fd\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001337 parse_options_usage(stat_usage, options, "o", 1);
1338 parse_options_usage(NULL, options, "log-fd", 0);
1339 goto out;
Jim Cromie56f3bae2011-09-07 17:14:00 -06001340 }
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001341
1342 if (output_fd < 0) {
1343 fprintf(stderr, "argument to --log-fd must be a > 0\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001344 parse_options_usage(stat_usage, options, "log-fd", 0);
1345 goto out;
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001346 }
1347
Stephane Eranian4aa90152011-08-15 22:22:33 +02001348 if (!output) {
1349 struct timespec tm;
1350 mode = append_file ? "a" : "w";
1351
1352 output = fopen(output_name, mode);
1353 if (!output) {
1354 perror("failed to create output file");
David Ahernfceda7f2012-08-26 12:24:44 -06001355 return -1;
Stephane Eranian4aa90152011-08-15 22:22:33 +02001356 }
1357 clock_gettime(CLOCK_REALTIME, &tm);
1358 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
Stephane Eranianfc3e4d02012-05-15 13:11:11 +02001359 } else if (output_fd > 0) {
Jim Cromie56f3bae2011-09-07 17:14:00 -06001360 mode = append_file ? "a" : "w";
1361 output = fdopen(output_fd, mode);
1362 if (!output) {
1363 perror("Failed opening logfd");
1364 return -errno;
1365 }
Stephane Eranian4aa90152011-08-15 22:22:33 +02001366 }
1367
Jim Cromied4ffd042011-09-07 17:14:03 -06001368 if (csv_sep) {
Stephane Eraniand7470b62010-12-01 18:49:05 +02001369 csv_output = true;
Jim Cromied4ffd042011-09-07 17:14:03 -06001370 if (!strcmp(csv_sep, "\\t"))
1371 csv_sep = "\t";
1372 } else
Stephane Eraniand7470b62010-12-01 18:49:05 +02001373 csv_sep = DEFAULT_SEPARATOR;
1374
1375 /*
1376 * let the spreadsheet do the pretty-printing
1377 */
1378 if (csv_output) {
Jim Cromie61a9f322011-09-07 17:14:04 -06001379 /* User explicitly passed -B? */
Stephane Eraniand7470b62010-12-01 18:49:05 +02001380 if (big_num_opt == 1) {
1381 fprintf(stderr, "-B option not supported with -x\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001382 parse_options_usage(stat_usage, options, "B", 1);
1383 parse_options_usage(NULL, options, "x", 1);
1384 goto out;
Stephane Eraniand7470b62010-12-01 18:49:05 +02001385 } else /* Nope, so disable big number formatting */
1386 big_num = false;
1387 } else if (big_num_opt == 0) /* User passed --no-big-num */
1388 big_num = false;
1389
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001390 if (!argc && target__none(&target))
Ingo Molnar52425192009-05-26 09:17:18 +02001391 usage_with_options(stat_usage, options);
David Ahernac3063b2013-09-30 07:37:37 -06001392
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001393 if (run_count < 0) {
Namhyung Kimcc03c542013-11-01 16:33:15 +09001394 pr_err("Run count must be a positive number\n");
1395 parse_options_usage(stat_usage, options, "r", 1);
1396 goto out;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001397 } else if (run_count == 0) {
1398 forever = true;
1399 run_count = 1;
1400 }
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001401
Jiri Olsa32b8af82015-06-26 11:29:27 +02001402 if ((aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
1403 fprintf(stderr, "The --per-thread option is only available "
1404 "when monitoring via -p -t options.\n");
1405 parse_options_usage(NULL, options, "p", 1);
1406 parse_options_usage(NULL, options, "t", 1);
1407 goto out;
1408 }
1409
1410 /*
1411 * no_aggr, cgroup are for system-wide only
1412 * --per-thread is aggregated per thread, we dont mix it with cpu mode
1413 */
1414 if (((aggr_mode != AGGR_GLOBAL && aggr_mode != AGGR_THREAD) || nr_cgroups) &&
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001415 !target__has_cpu(&target)) {
Stephane Eranian023695d2011-02-14 11:20:01 +02001416 fprintf(stderr, "both cgroup and no-aggregation "
1417 "modes only available in system-wide mode\n");
1418
Namhyung Kimcc03c542013-11-01 16:33:15 +09001419 parse_options_usage(stat_usage, options, "G", 1);
1420 parse_options_usage(NULL, options, "A", 1);
1421 parse_options_usage(NULL, options, "a", 1);
1422 goto out;
Stephane Eraniand7e7a452013-02-06 15:46:02 +01001423 }
1424
Ingo Molnar2cba3ff2011-05-19 13:30:56 +02001425 if (add_default_attributes())
1426 goto out;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001427
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001428 target__validate(&target);
Arnaldo Carvalho de Melo5c98d4662011-01-03 17:53:33 -02001429
Namhyung Kim77a6f012012-05-07 14:09:04 +09001430 if (perf_evlist__create_maps(evsel_list, &target) < 0) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001431 if (target__has_task(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001432 pr_err("Problems finding threads of monitor\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001433 parse_options_usage(stat_usage, options, "p", 1);
1434 parse_options_usage(NULL, options, "t", 1);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001435 } else if (target__has_cpu(&target)) {
Namhyung Kim77a6f012012-05-07 14:09:04 +09001436 perror("failed to parse CPUs map");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001437 parse_options_usage(stat_usage, options, "C", 1);
1438 parse_options_usage(NULL, options, "a", 1);
1439 }
1440 goto out;
Arnaldo Carvalho de Melo60d567e2011-01-03 17:49:48 -02001441 }
Jiri Olsa32b8af82015-06-26 11:29:27 +02001442
1443 /*
1444 * Initialize thread_map with comm names,
1445 * so we could print it out on output.
1446 */
1447 if (aggr_mode == AGGR_THREAD)
1448 thread_map__read_comms(evsel_list->threads);
1449
Stephane Eranian13370a92013-01-29 12:47:44 +01001450 if (interval && interval < 100) {
1451 pr_err("print interval must be >= 100ms\n");
Namhyung Kimcc03c542013-11-01 16:33:15 +09001452 parse_options_usage(stat_usage, options, "I", 1);
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001453 goto out;
Stephane Eranian13370a92013-01-29 12:47:44 +01001454 }
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001455
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001456 if (perf_evlist__alloc_stats(evsel_list, interval))
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001457 goto out;
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001458
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001459 if (perf_stat_init_aggr_mode())
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001460 goto out;
Stephane Eranian86ee6e12013-02-14 13:57:27 +01001461
Ingo Molnar58d7e992009-05-15 11:03:23 +02001462 /*
1463 * We dont want to block the signals - that would cause
1464 * child tasks to inherit that and Ctrl-C would not work.
1465 * What we want is for Ctrl-C to work in the exec()-ed
1466 * task, but being ignored by perf stat itself:
1467 */
Peter Zijlstraf7b7c262009-06-10 15:55:59 +02001468 atexit(sig_atexit);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001469 if (!forever)
1470 signal(SIGINT, skip_signal);
Stephane Eranian13370a92013-01-29 12:47:44 +01001471 signal(SIGCHLD, skip_signal);
Ingo Molnar58d7e992009-05-15 11:03:23 +02001472 signal(SIGALRM, skip_signal);
1473 signal(SIGABRT, skip_signal);
1474
Ingo Molnar42202dd2009-06-13 14:57:28 +02001475 status = 0;
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001476 for (run_idx = 0; forever || run_idx < run_count; run_idx++) {
Ingo Molnar42202dd2009-06-13 14:57:28 +02001477 if (run_count != 1 && verbose)
Stephane Eranian4aa90152011-08-15 22:22:33 +02001478 fprintf(output, "[ perf stat: executing run #%d ... ]\n",
1479 run_idx + 1);
Ingo Molnarf9cef0a2011-04-28 18:17:11 +02001480
Ingo Molnar42202dd2009-06-13 14:57:28 +02001481 status = run_perf_stat(argc, argv);
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001482 if (forever && status != -1) {
Jiri Olsad4f63a42015-06-26 11:29:26 +02001483 print_counters(NULL, argc, argv);
Jiri Olsa254ecbc2015-06-26 11:29:13 +02001484 perf_stat__reset_stats();
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001485 }
Ingo Molnar42202dd2009-06-13 14:57:28 +02001486 }
1487
Frederik Deweerdta7e191c2013-03-01 13:02:27 -05001488 if (!forever && status != -1 && !interval)
Jiri Olsad4f63a42015-06-26 11:29:26 +02001489 print_counters(NULL, argc, argv);
Arnaldo Carvalho de Melod134ffb2013-03-18 11:24:21 -03001490
1491 perf_evlist__free_stats(evsel_list);
Arnaldo Carvalho de Melo0015e2e2011-02-01 16:18:10 -02001492out:
1493 perf_evlist__delete(evsel_list);
Ingo Molnar42202dd2009-06-13 14:57:28 +02001494 return status;
Ingo Molnarddcacfa2009-04-20 15:37:32 +02001495}