Commit | Line | Data |
---|---|---|
91007045 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
ddcacfa0 | 2 | /* |
bf9e1876 IM |
3 | * builtin-stat.c |
4 | * | |
5 | * Builtin stat command: Give a precise performance counters summary | |
6 | * overview about any workload, CPU or specific PID. | |
7 | * | |
8 | * Sample output: | |
ddcacfa0 | 9 | |
2cba3ffb | 10 | $ perf stat ./hackbench 10 |
ddcacfa0 | 11 | |
2cba3ffb | 12 | Time: 0.118 |
ddcacfa0 | 13 | |
2cba3ffb | 14 | Performance counter stats for './hackbench 10': |
ddcacfa0 | 15 | |
2cba3ffb IM |
16 | 1708.761321 task-clock # 11.037 CPUs utilized |
17 | 41,190 context-switches # 0.024 M/sec | |
18 | 6,735 CPU-migrations # 0.004 M/sec | |
19 | 17,318 page-faults # 0.010 M/sec | |
20 | 5,205,202,243 cycles # 3.046 GHz | |
21 | 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle | |
22 | 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle | |
23 | 2,603,501,247 instructions # 0.50 insns per cycle | |
24 | # 1.48 stalled cycles per insn | |
25 | 484,357,498 branches # 283.455 M/sec | |
26 | 6,388,934 branch-misses # 1.32% of all branches | |
27 | ||
28 | 0.154822978 seconds time elapsed | |
ddcacfa0 | 29 | |
5242519b | 30 | * |
2cba3ffb | 31 | * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> |
5242519b IM |
32 | * |
33 | * Improvements and fixes by: | |
34 | * | |
35 | * Arjan van de Ven <arjan@linux.intel.com> | |
36 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
37 | * Wu Fengguang <fengguang.wu@intel.com> | |
38 | * Mike Galbraith <efault@gmx.de> | |
39 | * Paul Mackerras <paulus@samba.org> | |
6e750a8f | 40 | * Jaswinder Singh Rajput <jaswinder@kernel.org> |
ddcacfa0 IM |
41 | */ |
42 | ||
16f762a2 | 43 | #include "builtin.h" |
c1a604df | 44 | #include "perf.h" |
f14d5707 | 45 | #include "util/cgroup.h" |
4b6ab94e | 46 | #include <subcmd/parse-options.h> |
5242519b | 47 | #include "util/parse-events.h" |
4cabc3d1 | 48 | #include "util/pmu.h" |
8f28827a | 49 | #include "util/event.h" |
361c99a6 | 50 | #include "util/evlist.h" |
660e533e | 51 | #include "util/evlist-hybrid.h" |
69aad6f1 | 52 | #include "util/evsel.h" |
8f28827a | 53 | #include "util/debug.h" |
a5d243d0 | 54 | #include "util/color.h" |
0007ecea | 55 | #include "util/stat.h" |
60666c63 | 56 | #include "util/header.h" |
a12b51c4 | 57 | #include "util/cpumap.h" |
fd78260b | 58 | #include "util/thread_map.h" |
d809560b | 59 | #include "util/counts.h" |
687986bb | 60 | #include "util/topdown.h" |
4979d0c7 | 61 | #include "util/session.h" |
ba6039b6 | 62 | #include "util/tool.h" |
a067558e | 63 | #include "util/string2.h" |
b18f3e36 | 64 | #include "util/metricgroup.h" |
ea49e01c | 65 | #include "util/synthetic-events.h" |
aeb00b1a | 66 | #include "util/target.h" |
f3711020 | 67 | #include "util/time-utils.h" |
9660e08e | 68 | #include "util/top.h" |
4804e011 | 69 | #include "util/affinity.h" |
70943490 | 70 | #include "util/pfm.h" |
fa853c4b | 71 | #include "util/bpf_counter.h" |
f07952b1 | 72 | #include "util/iostat.h" |
12279429 | 73 | #include "util/pmu-hybrid.h" |
ba6039b6 | 74 | #include "asm/bug.h" |
ddcacfa0 | 75 | |
bd48c63e | 76 | #include <linux/time64.h> |
7f7c536f | 77 | #include <linux/zalloc.h> |
44b1e60a | 78 | #include <api/fs/fs.h> |
a43783ae | 79 | #include <errno.h> |
9607ad3a | 80 | #include <signal.h> |
1f16c575 | 81 | #include <stdlib.h> |
ddcacfa0 | 82 | #include <sys/prctl.h> |
fd20e811 | 83 | #include <inttypes.h> |
5af52b51 | 84 | #include <locale.h> |
e3b03b6c | 85 | #include <math.h> |
7a8ef4c4 ACM |
86 | #include <sys/types.h> |
87 | #include <sys/stat.h> | |
4208735d | 88 | #include <sys/wait.h> |
7a8ef4c4 | 89 | #include <unistd.h> |
0ce2da14 JO |
90 | #include <sys/time.h> |
91 | #include <sys/resource.h> | |
6ef81c55 | 92 | #include <linux/err.h> |
16c8a109 | 93 | |
3052ba56 | 94 | #include <linux/ctype.h> |
453fa030 | 95 | #include <perf/evlist.h> |
3d689ed6 | 96 | |
d7470b6a | 97 | #define DEFAULT_SEPARATOR " " |
daefd0bc | 98 | #define FREEZE_ON_SMI_PATH "devices/cpu/freeze_on_smi" |
d7470b6a | 99 | |
d4f63a47 | 100 | static void print_counters(struct timespec *ts, int argc, const char **argv); |
13370a9b | 101 | |
4cabc3d1 | 102 | /* Default events used for perf stat -T */ |
a454742c JO |
103 | static const char *transaction_attrs = { |
104 | "task-clock," | |
4cabc3d1 AK |
105 | "{" |
106 | "instructions," | |
107 | "cycles," | |
108 | "cpu/cycles-t/," | |
109 | "cpu/tx-start/," | |
110 | "cpu/el-start/," | |
111 | "cpu/cycles-ct/" | |
112 | "}" | |
113 | }; | |
114 | ||
115 | /* More limited version when the CPU does not have all events. */ | |
a454742c JO |
116 | static const char * transaction_limited_attrs = { |
117 | "task-clock," | |
4cabc3d1 AK |
118 | "{" |
119 | "instructions," | |
120 | "cycles," | |
121 | "cpu/cycles-t/," | |
122 | "cpu/tx-start/" | |
123 | "}" | |
124 | }; | |
125 | ||
44b1e60a AK |
126 | static const char * topdown_attrs[] = { |
127 | "topdown-total-slots", | |
128 | "topdown-slots-retired", | |
129 | "topdown-recovery-bubbles", | |
130 | "topdown-fetch-bubbles", | |
131 | "topdown-slots-issued", | |
132 | NULL, | |
133 | }; | |
134 | ||
55c36a9f AK |
135 | static const char *topdown_metric_attrs[] = { |
136 | "slots", | |
137 | "topdown-retiring", | |
138 | "topdown-bad-spec", | |
139 | "topdown-fe-bound", | |
140 | "topdown-be-bound", | |
141 | NULL, | |
142 | }; | |
143 | ||
63e39aa6 KL |
144 | static const char *topdown_metric_L2_attrs[] = { |
145 | "slots", | |
146 | "topdown-retiring", | |
147 | "topdown-bad-spec", | |
148 | "topdown-fe-bound", | |
149 | "topdown-be-bound", | |
150 | "topdown-heavy-ops", | |
151 | "topdown-br-mispredict", | |
152 | "topdown-fetch-lat", | |
153 | "topdown-mem-bound", | |
154 | NULL, | |
155 | }; | |
156 | ||
5f148e7c KL |
157 | #define TOPDOWN_MAX_LEVEL 2 |
158 | ||
daefd0bc KL |
159 | static const char *smi_cost_attrs = { |
160 | "{" | |
161 | "msr/aperf/," | |
162 | "msr/smi/," | |
163 | "cycles" | |
164 | "}" | |
165 | }; | |
166 | ||
63503dba | 167 | static struct evlist *evsel_list; |
112cb561 | 168 | static bool all_counters_use_bpf = true; |
361c99a6 | 169 | |
602ad878 | 170 | static struct target target = { |
77a6f014 NK |
171 | .uid = UINT_MAX, |
172 | }; | |
ddcacfa0 | 173 | |
c1a1f5d9 JO |
174 | #define METRIC_ONLY_LEN 20 |
175 | ||
d07f0b12 | 176 | static volatile pid_t child_pid = -1; |
2cba3ffb | 177 | static int detailed_run = 0; |
4cabc3d1 | 178 | static bool transaction_run; |
44b1e60a | 179 | static bool topdown_run = false; |
daefd0bc KL |
180 | static bool smi_cost = false; |
181 | static bool smi_reset = false; | |
d7470b6a | 182 | static int big_num_opt = -1; |
43bece79 | 183 | static bool group = false; |
1f16c575 PZ |
184 | static const char *pre_cmd = NULL; |
185 | static const char *post_cmd = NULL; | |
186 | static bool sync_run = false; | |
a7e191c3 | 187 | static bool forever = false; |
44b1e60a | 188 | static bool force_metric_only = false; |
13370a9b | 189 | static struct timespec ref_time; |
e0547311 | 190 | static bool append_file; |
db06a269 | 191 | static bool interval_count; |
e0547311 JO |
192 | static const char *output_name; |
193 | static int output_fd; | |
5af52b51 | 194 | |
4979d0c7 JO |
195 | struct perf_stat { |
196 | bool record; | |
8ceb41d7 | 197 | struct perf_data data; |
4979d0c7 JO |
198 | struct perf_session *session; |
199 | u64 bytes_written; | |
ba6039b6 | 200 | struct perf_tool tool; |
1975d36e | 201 | bool maps_allocated; |
f854839b | 202 | struct perf_cpu_map *cpus; |
9749b90e | 203 | struct perf_thread_map *threads; |
89af4e05 | 204 | enum aggr_mode aggr_mode; |
4979d0c7 JO |
205 | }; |
206 | ||
207 | static struct perf_stat perf_stat; | |
208 | #define STAT_RECORD perf_stat.record | |
209 | ||
60666c63 LW |
210 | static volatile int done = 0; |
211 | ||
421a50f3 | 212 | static struct perf_stat_config stat_config = { |
26893a60 JO |
213 | .aggr_mode = AGGR_GLOBAL, |
214 | .scale = true, | |
215 | .unit_width = 4, /* strlen("unit") */ | |
216 | .run_count = 1, | |
217 | .metric_only_len = METRIC_ONLY_LEN, | |
218 | .walltime_nsecs_stats = &walltime_nsecs_stats, | |
34ff0866 | 219 | .big_num = true, |
27e9769a | 220 | .ctl_fd = -1, |
f07952b1 AA |
221 | .ctl_fd_ack = -1, |
222 | .iostat_run = false, | |
421a50f3 JO |
223 | }; |
224 | ||
a9a17902 JO |
225 | static bool cpus_map_matched(struct evsel *a, struct evsel *b) |
226 | { | |
227 | if (!a->core.cpus && !b->core.cpus) | |
228 | return true; | |
229 | ||
230 | if (!a->core.cpus || !b->core.cpus) | |
231 | return false; | |
232 | ||
233 | if (a->core.cpus->nr != b->core.cpus->nr) | |
234 | return false; | |
235 | ||
236 | for (int i = 0; i < a->core.cpus->nr; i++) { | |
6d18804b | 237 | if (a->core.cpus->map[i].cpu != b->core.cpus->map[i].cpu) |
a9a17902 JO |
238 | return false; |
239 | } | |
240 | ||
241 | return true; | |
242 | } | |
243 | ||
244 | static void evlist__check_cpu_maps(struct evlist *evlist) | |
245 | { | |
246 | struct evsel *evsel, *pos, *leader; | |
247 | char buf[1024]; | |
248 | ||
660e533e JY |
249 | if (evlist__has_hybrid(evlist)) |
250 | evlist__warn_hybrid_group(evlist); | |
251 | ||
a9a17902 | 252 | evlist__for_each_entry(evlist, evsel) { |
fba7c866 | 253 | leader = evsel__leader(evsel); |
a9a17902 JO |
254 | |
255 | /* Check that leader matches cpus with each member. */ | |
256 | if (leader == evsel) | |
257 | continue; | |
258 | if (cpus_map_matched(leader, evsel)) | |
259 | continue; | |
260 | ||
261 | /* If there's mismatch disable the group and warn user. */ | |
262 | WARN_ONCE(1, "WARNING: grouped events cpus do not match, disabling group:\n"); | |
263 | evsel__group_desc(leader, buf, sizeof(buf)); | |
264 | pr_warning(" %s\n", buf); | |
265 | ||
266 | if (verbose) { | |
267 | cpu_map__snprint(leader->core.cpus, buf, sizeof(buf)); | |
268 | pr_warning(" %s: %s\n", leader->name, buf); | |
269 | cpu_map__snprint(evsel->core.cpus, buf, sizeof(buf)); | |
270 | pr_warning(" %s: %s\n", evsel->name, buf); | |
271 | } | |
272 | ||
273 | for_each_group_evsel(pos, leader) { | |
fba7c866 | 274 | evsel__set_leader(pos, pos); |
a9a17902 JO |
275 | pos->core.nr_members = 0; |
276 | } | |
fba7c866 | 277 | evsel->core.leader->nr_members = 0; |
a9a17902 JO |
278 | } |
279 | } | |
280 | ||
13370a9b SE |
281 | static inline void diff_timespec(struct timespec *r, struct timespec *a, |
282 | struct timespec *b) | |
283 | { | |
284 | r->tv_sec = a->tv_sec - b->tv_sec; | |
285 | if (a->tv_nsec < b->tv_nsec) { | |
310ebb93 | 286 | r->tv_nsec = a->tv_nsec + NSEC_PER_SEC - b->tv_nsec; |
13370a9b SE |
287 | r->tv_sec--; |
288 | } else { | |
289 | r->tv_nsec = a->tv_nsec - b->tv_nsec ; | |
290 | } | |
291 | } | |
292 | ||
254ecbc7 JO |
293 | static void perf_stat__reset_stats(void) |
294 | { | |
56739444 JY |
295 | int i; |
296 | ||
53f5e908 | 297 | evlist__reset_stats(evsel_list); |
f87027b9 | 298 | perf_stat__reset_shadow_stats(); |
56739444 JY |
299 | |
300 | for (i = 0; i < stat_config.stats_num; i++) | |
301 | perf_stat__reset_shadow_per_stat(&stat_config.stats[i]); | |
1eda3b21 JO |
302 | } |
303 | ||
8b99b1a4 JO |
304 | static int process_synthesized_event(struct perf_tool *tool __maybe_unused, |
305 | union perf_event *event, | |
306 | struct perf_sample *sample __maybe_unused, | |
307 | struct machine *machine __maybe_unused) | |
4979d0c7 | 308 | { |
8ceb41d7 | 309 | if (perf_data__write(&perf_stat.data, event, event->header.size) < 0) { |
4979d0c7 JO |
310 | pr_err("failed to write perf data, error: %m\n"); |
311 | return -1; | |
312 | } | |
313 | ||
8b99b1a4 | 314 | perf_stat.bytes_written += event->header.size; |
4979d0c7 JO |
315 | return 0; |
316 | } | |
317 | ||
1975d36e | 318 | static int write_stat_round_event(u64 tm, u64 type) |
7aad0c32 | 319 | { |
1975d36e | 320 | return perf_event__synthesize_stat_round(NULL, tm, type, |
7aad0c32 JO |
321 | process_synthesized_event, |
322 | NULL); | |
323 | } | |
324 | ||
325 | #define WRITE_STAT_ROUND_EVENT(time, interval) \ | |
326 | write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval) | |
327 | ||
8cd36f3e | 328 | #define SID(e, x, y) xyarray__entry(e->core.sample_id, x, y) |
5a6ea81b | 329 | |
7ac0089d | 330 | static int evsel__write_stat_event(struct evsel *counter, int cpu_map_idx, u32 thread, |
ddc6999e | 331 | struct perf_counts_values *count) |
5a6ea81b | 332 | { |
7ac0089d | 333 | struct perf_sample_id *sid = SID(counter, cpu_map_idx, thread); |
6d18804b | 334 | struct perf_cpu cpu = perf_cpu_map__cpu(evsel__cpus(counter), cpu_map_idx); |
5a6ea81b JO |
335 | |
336 | return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count, | |
337 | process_synthesized_event, NULL); | |
338 | } | |
339 | ||
da8c94c0 | 340 | static int read_single_counter(struct evsel *counter, int cpu_map_idx, |
f0fbb114 AK |
341 | int thread, struct timespec *rs) |
342 | { | |
343 | if (counter->tool_event == PERF_TOOL_DURATION_TIME) { | |
344 | u64 val = rs->tv_nsec + rs->tv_sec*1000000000ULL; | |
345 | struct perf_counts_values *count = | |
da8c94c0 | 346 | perf_counts(counter->counts, cpu_map_idx, thread); |
f0fbb114 AK |
347 | count->ena = count->run = val; |
348 | count->val = val; | |
349 | return 0; | |
350 | } | |
da8c94c0 | 351 | return evsel__read_counter(counter, cpu_map_idx, thread); |
f0fbb114 AK |
352 | } |
353 | ||
f5b4a9c3 SE |
354 | /* |
355 | * Read out the results of a single counter: | |
356 | * do not aggregate counts across CPUs in system-wide mode | |
357 | */ | |
da8c94c0 | 358 | static int read_counter_cpu(struct evsel *counter, struct timespec *rs, int cpu_map_idx) |
f5b4a9c3 | 359 | { |
a2f354e3 | 360 | int nthreads = perf_thread_map__nr(evsel_list->core.threads); |
4b49ab70 | 361 | int thread; |
f5b4a9c3 | 362 | |
3b4331d9 SP |
363 | if (!counter->supported) |
364 | return -ENOENT; | |
365 | ||
648b5af3 | 366 | if (counter->core.system_wide) |
9bf1a529 JO |
367 | nthreads = 1; |
368 | ||
369 | for (thread = 0; thread < nthreads; thread++) { | |
4b49ab70 AK |
370 | struct perf_counts_values *count; |
371 | ||
da8c94c0 | 372 | count = perf_counts(counter->counts, cpu_map_idx, thread); |
4b49ab70 AK |
373 | |
374 | /* | |
375 | * The leader's group read loads data into its group members | |
ea089692 | 376 | * (via evsel__read_counter()) and sets their count->loaded. |
4b49ab70 | 377 | */ |
da8c94c0 IR |
378 | if (!perf_counts__is_loaded(counter->counts, cpu_map_idx, thread) && |
379 | read_single_counter(counter, cpu_map_idx, thread, rs)) { | |
4b49ab70 | 380 | counter->counts->scaled = -1; |
da8c94c0 IR |
381 | perf_counts(counter->counts, cpu_map_idx, thread)->ena = 0; |
382 | perf_counts(counter->counts, cpu_map_idx, thread)->run = 0; | |
4b49ab70 AK |
383 | return -1; |
384 | } | |
5a6ea81b | 385 | |
da8c94c0 | 386 | perf_counts__set_loaded(counter->counts, cpu_map_idx, thread, false); |
82bf311e | 387 | |
4b49ab70 | 388 | if (STAT_RECORD) { |
da8c94c0 | 389 | if (evsel__write_stat_event(counter, cpu_map_idx, thread, count)) { |
4b49ab70 AK |
390 | pr_err("failed to write stat event\n"); |
391 | return -1; | |
5a6ea81b | 392 | } |
4b49ab70 | 393 | } |
0b1abbf4 | 394 | |
4b49ab70 AK |
395 | if (verbose > 1) { |
396 | fprintf(stat_config.output, | |
397 | "%s: %d: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", | |
8ab2e96d | 398 | evsel__name(counter), |
6d18804b IR |
399 | perf_cpu_map__cpu(evsel__cpus(counter), |
400 | cpu_map_idx).cpu, | |
4b49ab70 | 401 | count->val, count->ena, count->run); |
9bf1a529 | 402 | } |
f5b4a9c3 | 403 | } |
c52b12ed ACM |
404 | |
405 | return 0; | |
2996f5dd IM |
406 | } |
407 | ||
c7e5b328 | 408 | static int read_affinity_counters(struct timespec *rs) |
13370a9b | 409 | { |
472832d2 IR |
410 | struct evlist_cpu_iterator evlist_cpu_itr; |
411 | struct affinity saved_affinity, *affinity; | |
4b49ab70 | 412 | |
112cb561 SL |
413 | if (all_counters_use_bpf) |
414 | return 0; | |
415 | ||
472832d2 IR |
416 | if (!target__has_cpu(&target) || target__has_per_thread(&target)) |
417 | affinity = NULL; | |
418 | else if (affinity__setup(&saved_affinity) < 0) | |
c7e5b328 | 419 | return -1; |
472832d2 IR |
420 | else |
421 | affinity = &saved_affinity; | |
4b49ab70 | 422 | |
472832d2 IR |
423 | evlist__for_each_cpu(evlist_cpu_itr, evsel_list, affinity) { |
424 | struct evsel *counter = evlist_cpu_itr.evsel; | |
4b49ab70 | 425 | |
472832d2 IR |
426 | if (evsel__is_bpf(counter)) |
427 | continue; | |
428 | ||
429 | if (!counter->err) { | |
430 | counter->err = read_counter_cpu(counter, rs, | |
431 | evlist_cpu_itr.cpu_map_idx); | |
4b49ab70 AK |
432 | } |
433 | } | |
472832d2 IR |
434 | if (affinity) |
435 | affinity__cleanup(&saved_affinity); | |
436 | ||
c7e5b328 JY |
437 | return 0; |
438 | } | |
439 | ||
fa853c4b SL |
440 | static int read_bpf_map_counters(void) |
441 | { | |
442 | struct evsel *counter; | |
443 | int err; | |
444 | ||
445 | evlist__for_each_entry(evsel_list, counter) { | |
112cb561 SL |
446 | if (!evsel__is_bpf(counter)) |
447 | continue; | |
448 | ||
fa853c4b SL |
449 | err = bpf_counter__read(counter); |
450 | if (err) | |
451 | return err; | |
452 | } | |
453 | return 0; | |
454 | } | |
455 | ||
c7e5b328 JY |
456 | static void read_counters(struct timespec *rs) |
457 | { | |
458 | struct evsel *counter; | |
459 | ||
fa853c4b | 460 | if (!stat_config.stop_read_counter) { |
112cb561 SL |
461 | if (read_bpf_map_counters() || |
462 | read_affinity_counters(rs)) | |
fa853c4b SL |
463 | return; |
464 | } | |
13370a9b | 465 | |
e5cadb93 | 466 | evlist__for_each_entry(evsel_list, counter) { |
4b49ab70 | 467 | if (counter->err) |
245bad8e | 468 | pr_debug("failed to read counter %s\n", counter->name); |
4b49ab70 | 469 | if (counter->err == 0 && perf_stat_process_counter(&stat_config, counter)) |
3b3eb044 | 470 | pr_warning("failed to process counter %s\n", counter->name); |
4b49ab70 | 471 | counter->err = 0; |
13370a9b | 472 | } |
106a94a0 JO |
473 | } |
474 | ||
72f02a94 JY |
475 | static int runtime_stat_new(struct perf_stat_config *config, int nthreads) |
476 | { | |
477 | int i; | |
478 | ||
479 | config->stats = calloc(nthreads, sizeof(struct runtime_stat)); | |
480 | if (!config->stats) | |
481 | return -1; | |
482 | ||
483 | config->stats_num = nthreads; | |
484 | ||
485 | for (i = 0; i < nthreads; i++) | |
486 | runtime_stat__init(&config->stats[i]); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | static void runtime_stat_delete(struct perf_stat_config *config) | |
492 | { | |
493 | int i; | |
494 | ||
495 | if (!config->stats) | |
496 | return; | |
497 | ||
498 | for (i = 0; i < config->stats_num; i++) | |
499 | runtime_stat__exit(&config->stats[i]); | |
500 | ||
501 | zfree(&config->stats); | |
502 | } | |
503 | ||
504 | static void runtime_stat_reset(struct perf_stat_config *config) | |
505 | { | |
506 | int i; | |
507 | ||
508 | if (!config->stats) | |
509 | return; | |
510 | ||
511 | for (i = 0; i < config->stats_num; i++) | |
512 | perf_stat__reset_shadow_per_stat(&config->stats[i]); | |
513 | } | |
514 | ||
ba411a95 | 515 | static void process_interval(void) |
106a94a0 | 516 | { |
106a94a0 | 517 | struct timespec ts, rs; |
106a94a0 | 518 | |
13370a9b SE |
519 | clock_gettime(CLOCK_MONOTONIC, &ts); |
520 | diff_timespec(&rs, &ts, &ref_time); | |
13370a9b | 521 | |
197ba86f | 522 | perf_stat__reset_shadow_per_stat(&rt_stat); |
72f02a94 | 523 | runtime_stat_reset(&stat_config); |
f0fbb114 AK |
524 | read_counters(&rs); |
525 | ||
7aad0c32 | 526 | if (STAT_RECORD) { |
bd48c63e | 527 | if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL)) |
7aad0c32 JO |
528 | pr_err("failed to write stat round event\n"); |
529 | } | |
530 | ||
b90f1333 | 531 | init_stats(&walltime_nsecs_stats); |
ea9eb1f4 | 532 | update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000ULL); |
d4f63a47 | 533 | print_counters(&rs, 0, NULL); |
13370a9b SE |
534 | } |
535 | ||
dece3a4d AB |
536 | static bool handle_interval(unsigned int interval, int *times) |
537 | { | |
538 | if (interval) { | |
539 | process_interval(); | |
540 | if (interval_count && !(--(*times))) | |
541 | return true; | |
542 | } | |
543 | return false; | |
544 | } | |
545 | ||
fa853c4b | 546 | static int enable_counters(void) |
41191688 | 547 | { |
fa853c4b SL |
548 | struct evsel *evsel; |
549 | int err; | |
550 | ||
112cb561 SL |
551 | evlist__for_each_entry(evsel_list, evsel) { |
552 | if (!evsel__is_bpf(evsel)) | |
553 | continue; | |
554 | ||
555 | err = bpf_counter__enable(evsel); | |
556 | if (err) | |
557 | return err; | |
fa853c4b SL |
558 | } |
559 | ||
2162b9c6 AB |
560 | if (stat_config.initial_delay < 0) { |
561 | pr_info(EVLIST_DISABLED_MSG); | |
fa853c4b | 562 | return 0; |
2162b9c6 AB |
563 | } |
564 | ||
565 | if (stat_config.initial_delay > 0) { | |
566 | pr_info(EVLIST_DISABLED_MSG); | |
728c0ee0 | 567 | usleep(stat_config.initial_delay * USEC_PER_MSEC); |
2162b9c6 | 568 | } |
67ccdecd JO |
569 | |
570 | /* | |
571 | * We need to enable counters only if: | |
572 | * - we don't have tracee (attaching to task or cpu) | |
573 | * - we have initial delay configured | |
574 | */ | |
2162b9c6 | 575 | if (!target__none(&target) || stat_config.initial_delay) { |
f8b61bd2 SL |
576 | if (!all_counters_use_bpf) |
577 | evlist__enable(evsel_list); | |
2162b9c6 AB |
578 | if (stat_config.initial_delay > 0) |
579 | pr_info(EVLIST_ENABLED_MSG); | |
580 | } | |
fa853c4b | 581 | return 0; |
41191688 AK |
582 | } |
583 | ||
3df33eff MR |
584 | static void disable_counters(void) |
585 | { | |
f8b61bd2 SL |
586 | struct evsel *counter; |
587 | ||
3df33eff MR |
588 | /* |
589 | * If we don't have tracee (attaching to task or cpu), counters may | |
590 | * still be running. To get accurate group ratios, we must stop groups | |
591 | * from counting before reading their constituent counters. | |
592 | */ | |
f8b61bd2 SL |
593 | if (!target__none(&target)) { |
594 | evlist__for_each_entry(evsel_list, counter) | |
595 | bpf_counter__disable(counter); | |
596 | if (!all_counters_use_bpf) | |
597 | evlist__disable(evsel_list); | |
598 | } | |
3df33eff MR |
599 | } |
600 | ||
f33cbe72 | 601 | static volatile int workload_exec_errno; |
6af206fd ACM |
602 | |
603 | /* | |
7b392ef0 | 604 | * evlist__prepare_workload will send a SIGUSR1 |
6af206fd ACM |
605 | * if the fork fails, since we asked by setting its |
606 | * want_signal to true. | |
607 | */ | |
f33cbe72 ACM |
608 | static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, |
609 | void *ucontext __maybe_unused) | |
6af206fd | 610 | { |
f33cbe72 | 611 | workload_exec_errno = info->si_value.sival_int; |
6af206fd ACM |
612 | } |
613 | ||
ddc6999e | 614 | static bool evsel__should_store_id(struct evsel *counter) |
82bf311e | 615 | { |
1fc632ce | 616 | return STAT_RECORD || counter->core.attr.read_format & PERF_FORMAT_ID; |
82bf311e JO |
617 | } |
618 | ||
cbb5df7e | 619 | static bool is_target_alive(struct target *_target, |
9749b90e | 620 | struct perf_thread_map *threads) |
cbb5df7e JO |
621 | { |
622 | struct stat st; | |
623 | int i; | |
624 | ||
625 | if (!target__has_task(_target)) | |
626 | return true; | |
627 | ||
628 | for (i = 0; i < threads->nr; i++) { | |
629 | char path[PATH_MAX]; | |
630 | ||
631 | scnprintf(path, PATH_MAX, "%s/%d", procfs__mountpoint(), | |
632 | threads->map[i].pid); | |
633 | ||
634 | if (!stat(path, &st)) | |
635 | return true; | |
636 | } | |
637 | ||
638 | return false; | |
639 | } | |
640 | ||
bee328cb AB |
641 | static void process_evlist(struct evlist *evlist, unsigned int interval) |
642 | { | |
643 | enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED; | |
644 | ||
645 | if (evlist__ctlfd_process(evlist, &cmd) > 0) { | |
646 | switch (cmd) { | |
647 | case EVLIST_CTL_CMD_ENABLE: | |
bee328cb AB |
648 | if (interval) |
649 | process_interval(); | |
650 | break; | |
651 | case EVLIST_CTL_CMD_DISABLE: | |
652 | if (interval) | |
653 | process_interval(); | |
bee328cb | 654 | break; |
d20aff15 | 655 | case EVLIST_CTL_CMD_SNAPSHOT: |
bee328cb AB |
656 | case EVLIST_CTL_CMD_ACK: |
657 | case EVLIST_CTL_CMD_UNSUPPORTED: | |
142544a9 | 658 | case EVLIST_CTL_CMD_EVLIST: |
f186cd61 | 659 | case EVLIST_CTL_CMD_STOP: |
47fddcb4 | 660 | case EVLIST_CTL_CMD_PING: |
bee328cb AB |
661 | default: |
662 | break; | |
663 | } | |
664 | } | |
665 | } | |
666 | ||
667 | static void compute_tts(struct timespec *time_start, struct timespec *time_stop, | |
668 | int *time_to_sleep) | |
669 | { | |
670 | int tts = *time_to_sleep; | |
671 | struct timespec time_diff; | |
672 | ||
673 | diff_timespec(&time_diff, time_stop, time_start); | |
674 | ||
675 | tts -= time_diff.tv_sec * MSEC_PER_SEC + | |
676 | time_diff.tv_nsec / NSEC_PER_MSEC; | |
677 | ||
678 | if (tts < 0) | |
679 | tts = 0; | |
680 | ||
681 | *time_to_sleep = tts; | |
682 | } | |
683 | ||
684 | static int dispatch_events(bool forks, int timeout, int interval, int *times) | |
987b8238 AB |
685 | { |
686 | int child_exited = 0, status = 0; | |
bee328cb AB |
687 | int time_to_sleep, sleep_time; |
688 | struct timespec time_start, time_stop; | |
689 | ||
690 | if (interval) | |
691 | sleep_time = interval; | |
692 | else if (timeout) | |
693 | sleep_time = timeout; | |
694 | else | |
695 | sleep_time = 1000; | |
696 | ||
697 | time_to_sleep = sleep_time; | |
987b8238 AB |
698 | |
699 | while (!done) { | |
700 | if (forks) | |
701 | child_exited = waitpid(child_pid, &status, WNOHANG); | |
702 | else | |
703 | child_exited = !is_target_alive(&target, evsel_list->core.threads) ? 1 : 0; | |
704 | ||
705 | if (child_exited) | |
706 | break; | |
707 | ||
bee328cb AB |
708 | clock_gettime(CLOCK_MONOTONIC, &time_start); |
709 | if (!(evlist__poll(evsel_list, time_to_sleep) > 0)) { /* poll timeout or EINTR */ | |
710 | if (timeout || handle_interval(interval, times)) | |
711 | break; | |
712 | time_to_sleep = sleep_time; | |
713 | } else { /* fd revent */ | |
714 | process_evlist(evsel_list, interval); | |
715 | clock_gettime(CLOCK_MONOTONIC, &time_stop); | |
716 | compute_tts(&time_start, &time_stop, &time_to_sleep); | |
717 | } | |
987b8238 AB |
718 | } |
719 | ||
720 | return status; | |
721 | } | |
722 | ||
e0e6a6ca AK |
723 | enum counter_recovery { |
724 | COUNTER_SKIP, | |
725 | COUNTER_RETRY, | |
726 | COUNTER_FATAL, | |
727 | }; | |
728 | ||
729 | static enum counter_recovery stat_handle_error(struct evsel *counter) | |
730 | { | |
731 | char msg[BUFSIZ]; | |
732 | /* | |
733 | * PPC returns ENXIO for HW counters until 2.6.37 | |
734 | * (behavior changed with commit b0a873e). | |
735 | */ | |
736 | if (errno == EINVAL || errno == ENOSYS || | |
737 | errno == ENOENT || errno == EOPNOTSUPP || | |
738 | errno == ENXIO) { | |
739 | if (verbose > 0) | |
740 | ui__warning("%s event is not supported by the kernel.\n", | |
8ab2e96d | 741 | evsel__name(counter)); |
e0e6a6ca | 742 | counter->supported = false; |
4804e011 AK |
743 | /* |
744 | * errored is a sticky flag that means one of the counter's | |
745 | * cpu event had a problem and needs to be reexamined. | |
746 | */ | |
747 | counter->errored = true; | |
e0e6a6ca | 748 | |
fba7c866 JO |
749 | if ((evsel__leader(counter) != counter) || |
750 | !(counter->core.leader->nr_members > 1)) | |
e0e6a6ca | 751 | return COUNTER_SKIP; |
ae430892 | 752 | } else if (evsel__fallback(counter, errno, msg, sizeof(msg))) { |
e0e6a6ca AK |
753 | if (verbose > 0) |
754 | ui__warning("%s\n", msg); | |
755 | return COUNTER_RETRY; | |
756 | } else if (target__has_per_thread(&target) && | |
757 | evsel_list->core.threads && | |
758 | evsel_list->core.threads->err_thread != -1) { | |
759 | /* | |
760 | * For global --per-thread case, skip current | |
761 | * error thread. | |
762 | */ | |
763 | if (!thread_map__remove(evsel_list->core.threads, | |
764 | evsel_list->core.threads->err_thread)) { | |
765 | evsel_list->core.threads->err_thread = -1; | |
766 | return COUNTER_RETRY; | |
767 | } | |
768 | } | |
769 | ||
2bb72dbb | 770 | evsel__open_strerror(counter, &target, errno, msg, sizeof(msg)); |
e0e6a6ca AK |
771 | ui__error("%s\n", msg); |
772 | ||
773 | if (child_pid != -1) | |
774 | kill(child_pid, SIGTERM); | |
775 | return COUNTER_FATAL; | |
776 | } | |
777 | ||
e55c14af | 778 | static int __run_perf_stat(int argc, const char **argv, int run_idx) |
42202dd5 | 779 | { |
ec0d3d1f | 780 | int interval = stat_config.interval; |
db06a269 | 781 | int times = stat_config.times; |
f1f8ad52 | 782 | int timeout = stat_config.timeout; |
d6195a6a | 783 | char msg[BUFSIZ]; |
42202dd5 | 784 | unsigned long long t0, t1; |
32dcd021 | 785 | struct evsel *counter; |
410136f5 | 786 | size_t l; |
42202dd5 | 787 | int status = 0; |
6be2850e | 788 | const bool forks = (argc > 0); |
8ceb41d7 | 789 | bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false; |
472832d2 | 790 | struct evlist_cpu_iterator evlist_cpu_itr; |
4804e011 | 791 | struct affinity affinity; |
472832d2 | 792 | int err; |
4804e011 | 793 | bool second_pass = false; |
42202dd5 | 794 | |
60666c63 | 795 | if (forks) { |
7b392ef0 | 796 | if (evlist__prepare_workload(evsel_list, &target, argv, is_pipe, workload_exec_failed_signal) < 0) { |
acf28922 NK |
797 | perror("failed to prepare workload"); |
798 | return -1; | |
60666c63 | 799 | } |
d20a47e7 | 800 | child_pid = evsel_list->workload.pid; |
051ae7f7 PM |
801 | } |
802 | ||
6a4bb04c | 803 | if (group) |
a622eafa | 804 | evlist__set_leader(evsel_list); |
6a4bb04c | 805 | |
4804e011 AK |
806 | if (affinity__setup(&affinity) < 0) |
807 | return -1; | |
808 | ||
112cb561 SL |
809 | evlist__for_each_entry(evsel_list, counter) { |
810 | if (bpf_counter__load(counter, &target)) | |
811 | return -1; | |
812 | if (!evsel__is_bpf(counter)) | |
813 | all_counters_use_bpf = false; | |
fa853c4b SL |
814 | } |
815 | ||
472832d2 IR |
816 | evlist__for_each_cpu(evlist_cpu_itr, evsel_list, &affinity) { |
817 | counter = evlist_cpu_itr.evsel; | |
818 | ||
7fac83aa SL |
819 | /* |
820 | * bperf calls evsel__open_per_cpu() in bperf__load(), so | |
821 | * no need to call it again here. | |
822 | */ | |
823 | if (target.use_bpf) | |
824 | break; | |
4804e011 | 825 | |
472832d2 IR |
826 | if (counter->reset_group || counter->errored) |
827 | continue; | |
828 | if (evsel__is_bpf(counter)) | |
829 | continue; | |
830 | try_again: | |
831 | if (create_perf_stat_counter(counter, &stat_config, &target, | |
832 | evlist_cpu_itr.cpu_map_idx) < 0) { | |
833 | ||
834 | /* | |
835 | * Weak group failed. We cannot just undo this here | |
836 | * because earlier CPUs might be in group mode, and the kernel | |
837 | * doesn't support mixing group and non group reads. Defer | |
838 | * it to later. | |
839 | * Don't close here because we're in the wrong affinity. | |
840 | */ | |
841 | if ((errno == EINVAL || errno == EBADF) && | |
842 | evsel__leader(counter) != counter && | |
843 | counter->weak_group) { | |
844 | evlist__reset_weak_group(evsel_list, counter, false); | |
845 | assert(counter->reset_group); | |
846 | second_pass = true; | |
4804e011 | 847 | continue; |
472832d2 IR |
848 | } |
849 | ||
850 | switch (stat_handle_error(counter)) { | |
851 | case COUNTER_FATAL: | |
852 | return -1; | |
853 | case COUNTER_RETRY: | |
854 | goto try_again; | |
855 | case COUNTER_SKIP: | |
4804e011 | 856 | continue; |
472832d2 IR |
857 | default: |
858 | break; | |
859 | } | |
860 | ||
861 | } | |
862 | counter->supported = true; | |
863 | } | |
864 | ||
865 | if (second_pass) { | |
866 | /* | |
867 | * Now redo all the weak group after closing them, | |
868 | * and also close errored counters. | |
869 | */ | |
870 | ||
871 | /* First close errored or weak retry */ | |
872 | evlist__for_each_cpu(evlist_cpu_itr, evsel_list, &affinity) { | |
873 | counter = evlist_cpu_itr.evsel; | |
874 | ||
875 | if (!counter->reset_group && !counter->errored) | |
112cb561 | 876 | continue; |
472832d2 IR |
877 | |
878 | perf_evsel__close_cpu(&counter->core, evlist_cpu_itr.cpu_map_idx); | |
879 | } | |
880 | /* Now reopen weak */ | |
881 | evlist__for_each_cpu(evlist_cpu_itr, evsel_list, &affinity) { | |
882 | counter = evlist_cpu_itr.evsel; | |
883 | ||
884 | if (!counter->reset_group && !counter->errored) | |
885 | continue; | |
886 | if (!counter->reset_group) | |
887 | continue; | |
888 | try_again_reset: | |
889 | pr_debug2("reopening weak %s\n", evsel__name(counter)); | |
4804e011 | 890 | if (create_perf_stat_counter(counter, &stat_config, &target, |
472832d2 | 891 | evlist_cpu_itr.cpu_map_idx) < 0) { |
4804e011 AK |
892 | |
893 | switch (stat_handle_error(counter)) { | |
894 | case COUNTER_FATAL: | |
895 | return -1; | |
896 | case COUNTER_RETRY: | |
472832d2 | 897 | goto try_again_reset; |
4804e011 AK |
898 | case COUNTER_SKIP: |
899 | continue; | |
900 | default: | |
901 | break; | |
902 | } | |
5a5dfe4b | 903 | } |
4804e011 AK |
904 | counter->supported = true; |
905 | } | |
906 | } | |
4804e011 AK |
907 | affinity__cleanup(&affinity); |
908 | ||
909 | evlist__for_each_entry(evsel_list, counter) { | |
910 | if (!counter->supported) { | |
911 | perf_evsel__free_fd(&counter->core); | |
912 | continue; | |
48290609 | 913 | } |
410136f5 SE |
914 | |
915 | l = strlen(counter->unit); | |
df4f7b4d JO |
916 | if (l > stat_config.unit_width) |
917 | stat_config.unit_width = l; | |
2af4646d | 918 | |
ddc6999e | 919 | if (evsel__should_store_id(counter) && |
34397753 | 920 | evsel__store_ids(counter, evsel_list)) |
2af4646d | 921 | return -1; |
084ab9f8 | 922 | } |
42202dd5 | 923 | |
24bf91a7 | 924 | if (evlist__apply_filters(evsel_list, &counter)) { |
62d94b00 | 925 | pr_err("failed to set filter \"%s\" on event %s with %d (%s)\n", |
8ab2e96d | 926 | counter->filter, evsel__name(counter), errno, |
c8b5f2c9 | 927 | str_error_r(errno, msg, sizeof(msg))); |
cfd748ae FW |
928 | return -1; |
929 | } | |
930 | ||
4979d0c7 | 931 | if (STAT_RECORD) { |
fa853c4b | 932 | int fd = perf_data__fd(&perf_stat.data); |
4979d0c7 | 933 | |
664c98d4 | 934 | if (is_pipe) { |
8ceb41d7 | 935 | err = perf_header__write_pipe(perf_data__fd(&perf_stat.data)); |
664c98d4 JO |
936 | } else { |
937 | err = perf_session__write_header(perf_stat.session, evsel_list, | |
938 | fd, false); | |
939 | } | |
940 | ||
4979d0c7 JO |
941 | if (err < 0) |
942 | return err; | |
8b99b1a4 | 943 | |
b251892d ACM |
944 | err = perf_event__synthesize_stat_events(&stat_config, NULL, evsel_list, |
945 | process_synthesized_event, is_pipe); | |
8b99b1a4 JO |
946 | if (err < 0) |
947 | return err; | |
4979d0c7 JO |
948 | } |
949 | ||
42202dd5 IM |
950 | /* |
951 | * Enable counters and exec the command: | |
952 | */ | |
60666c63 | 953 | if (forks) { |
7b392ef0 | 954 | evlist__start_workload(evsel_list); |
fa853c4b SL |
955 | err = enable_counters(); |
956 | if (err) | |
957 | return -1; | |
acf28922 | 958 | |
435b46ef SL |
959 | t0 = rdclock(); |
960 | clock_gettime(CLOCK_MONOTONIC, &ref_time); | |
961 | ||
27e9769a | 962 | if (interval || timeout || evlist__ctlfd_initialized(evsel_list)) |
bee328cb | 963 | status = dispatch_events(forks, timeout, interval, ×); |
cfbd41b7 ACM |
964 | if (child_pid != -1) { |
965 | if (timeout) | |
966 | kill(child_pid, SIGTERM); | |
8a99255a | 967 | wait4(child_pid, &status, 0, &stat_config.ru_data); |
cfbd41b7 | 968 | } |
6af206fd | 969 | |
f33cbe72 | 970 | if (workload_exec_errno) { |
c8b5f2c9 | 971 | const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg)); |
f33cbe72 | 972 | pr_err("Workload failed: %s\n", emsg); |
6af206fd | 973 | return -1; |
f33cbe72 | 974 | } |
6af206fd | 975 | |
33e49ea7 AK |
976 | if (WIFSIGNALED(status)) |
977 | psignal(WTERMSIG(status), argv[0]); | |
60666c63 | 978 | } else { |
fa853c4b SL |
979 | err = enable_counters(); |
980 | if (err) | |
981 | return -1; | |
435b46ef SL |
982 | |
983 | t0 = rdclock(); | |
984 | clock_gettime(CLOCK_MONOTONIC, &ref_time); | |
985 | ||
bee328cb | 986 | status = dispatch_events(forks, timeout, interval, ×); |
60666c63 | 987 | } |
42202dd5 | 988 | |
3df33eff MR |
989 | disable_counters(); |
990 | ||
42202dd5 IM |
991 | t1 = rdclock(); |
992 | ||
54ac0b1b JO |
993 | if (stat_config.walltime_run_table) |
994 | stat_config.walltime_run[run_idx] = t1 - t0; | |
e55c14af | 995 | |
ee6a9614 | 996 | if (interval && stat_config.summary) { |
c7e5b328 | 997 | stat_config.interval = 0; |
ee6a9614 | 998 | stat_config.stop_read_counter = true; |
c7e5b328 JY |
999 | init_stats(&walltime_nsecs_stats); |
1000 | update_stats(&walltime_nsecs_stats, t1 - t0); | |
1001 | ||
1002 | if (stat_config.aggr_mode == AGGR_GLOBAL) | |
53f5e908 | 1003 | evlist__save_aggr_prev_raw_counts(evsel_list); |
c7e5b328 | 1004 | |
53f5e908 ACM |
1005 | evlist__copy_prev_raw_counts(evsel_list); |
1006 | evlist__reset_prev_raw_counts(evsel_list); | |
c7e5b328 JY |
1007 | runtime_stat_reset(&stat_config); |
1008 | perf_stat__reset_shadow_per_stat(&rt_stat); | |
1009 | } else | |
1010 | update_stats(&walltime_nsecs_stats, t1 - t0); | |
42202dd5 | 1011 | |
3df33eff MR |
1012 | /* |
1013 | * Closing a group leader splits the group, and as we only disable | |
1014 | * group leaders, results in remaining events becoming enabled. To | |
1015 | * avoid arbitrary skew, we must read all counters before closing any | |
1016 | * group leaders. | |
1017 | */ | |
f0fbb114 | 1018 | read_counters(&(struct timespec) { .tv_nsec = t1-t0 }); |
08ef3af1 JO |
1019 | |
1020 | /* | |
1021 | * We need to keep evsel_list alive, because it's processed | |
1022 | * later the evsel_list will be closed after. | |
1023 | */ | |
1024 | if (!STAT_RECORD) | |
750b4ede | 1025 | evlist__close(evsel_list); |
c52b12ed | 1026 | |
42202dd5 IM |
1027 | return WEXITSTATUS(status); |
1028 | } | |
1029 | ||
e55c14af | 1030 | static int run_perf_stat(int argc, const char **argv, int run_idx) |
1f16c575 PZ |
1031 | { |
1032 | int ret; | |
1033 | ||
1034 | if (pre_cmd) { | |
1035 | ret = system(pre_cmd); | |
1036 | if (ret) | |
1037 | return ret; | |
1038 | } | |
1039 | ||
1040 | if (sync_run) | |
1041 | sync(); | |
1042 | ||
e55c14af | 1043 | ret = __run_perf_stat(argc, argv, run_idx); |
1f16c575 PZ |
1044 | if (ret) |
1045 | return ret; | |
1046 | ||
1047 | if (post_cmd) { | |
1048 | ret = system(post_cmd); | |
1049 | if (ret) | |
1050 | return ret; | |
1051 | } | |
1052 | ||
1053 | return ret; | |
1054 | } | |
1055 | ||
a5a9eac1 JO |
1056 | static void print_counters(struct timespec *ts, int argc, const char **argv) |
1057 | { | |
0174820a JO |
1058 | /* Do not print anything if we record to the pipe. */ |
1059 | if (STAT_RECORD && perf_stat.data.is_pipe) | |
1060 | return; | |
55a4de94 AK |
1061 | if (stat_config.quiet) |
1062 | return; | |
0174820a | 1063 | |
71273724 | 1064 | evlist__print_counters(evsel_list, &stat_config, &target, ts, argc, argv); |
a5a9eac1 JO |
1065 | } |
1066 | ||
f7b7c26e PZ |
1067 | static volatile int signr = -1; |
1068 | ||
5242519b | 1069 | static void skip_signal(int signo) |
ddcacfa0 | 1070 | { |
ec0d3d1f | 1071 | if ((child_pid == -1) || stat_config.interval) |
60666c63 LW |
1072 | done = 1; |
1073 | ||
f7b7c26e | 1074 | signr = signo; |
d07f0b12 SE |
1075 | /* |
1076 | * render child_pid harmless | |
1077 | * won't send SIGTERM to a random | |
1078 | * process in case of race condition | |
1079 | * and fast PID recycling | |
1080 | */ | |
1081 | child_pid = -1; | |
f7b7c26e PZ |
1082 | } |
1083 | ||
1084 | static void sig_atexit(void) | |
1085 | { | |
d07f0b12 SE |
1086 | sigset_t set, oset; |
1087 | ||
1088 | /* | |
1089 | * avoid race condition with SIGCHLD handler | |
1090 | * in skip_signal() which is modifying child_pid | |
1091 | * goal is to avoid send SIGTERM to a random | |
1092 | * process | |
1093 | */ | |
1094 | sigemptyset(&set); | |
1095 | sigaddset(&set, SIGCHLD); | |
1096 | sigprocmask(SIG_BLOCK, &set, &oset); | |
1097 | ||
933da83a CW |
1098 | if (child_pid != -1) |
1099 | kill(child_pid, SIGTERM); | |
1100 | ||
d07f0b12 SE |
1101 | sigprocmask(SIG_SETMASK, &oset, NULL); |
1102 | ||
f7b7c26e PZ |
1103 | if (signr == -1) |
1104 | return; | |
1105 | ||
1106 | signal(signr, SIG_DFL); | |
1107 | kill(getpid(), signr); | |
5242519b IM |
1108 | } |
1109 | ||
d778a778 PC |
1110 | void perf_stat__set_big_num(int set) |
1111 | { | |
1112 | stat_config.big_num = (set != 0); | |
1113 | } | |
1114 | ||
0bdad978 JY |
1115 | void perf_stat__set_no_csv_summary(int set) |
1116 | { | |
1117 | stat_config.no_csv_summary = (set != 0); | |
1118 | } | |
1119 | ||
1d037ca1 IT |
1120 | static int stat__set_big_num(const struct option *opt __maybe_unused, |
1121 | const char *s __maybe_unused, int unset) | |
d7470b6a SE |
1122 | { |
1123 | big_num_opt = unset ? 0 : 1; | |
d778a778 | 1124 | perf_stat__set_big_num(!unset); |
d7470b6a SE |
1125 | return 0; |
1126 | } | |
1127 | ||
44b1e60a AK |
1128 | static int enable_metric_only(const struct option *opt __maybe_unused, |
1129 | const char *s __maybe_unused, int unset) | |
1130 | { | |
1131 | force_metric_only = true; | |
0ce5aa02 | 1132 | stat_config.metric_only = !unset; |
44b1e60a AK |
1133 | return 0; |
1134 | } | |
1135 | ||
b18f3e36 AK |
1136 | static int parse_metric_groups(const struct option *opt, |
1137 | const char *str, | |
1138 | int unset __maybe_unused) | |
1139 | { | |
05530a79 IR |
1140 | return metricgroup__parse_groups(opt, str, |
1141 | stat_config.metric_no_group, | |
1142 | stat_config.metric_no_merge, | |
1143 | &stat_config.metric_events); | |
b18f3e36 AK |
1144 | } |
1145 | ||
27e9769a AB |
1146 | static int parse_control_option(const struct option *opt, |
1147 | const char *str, | |
1148 | int unset __maybe_unused) | |
1149 | { | |
9864a66d | 1150 | struct perf_stat_config *config = opt->value; |
27e9769a | 1151 | |
a8fcbd26 AH |
1152 | return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack, &config->ctl_fd_close); |
1153 | } | |
1154 | ||
d1c5a0e8 NK |
1155 | static int parse_stat_cgroups(const struct option *opt, |
1156 | const char *str, int unset) | |
1157 | { | |
1158 | if (stat_config.cgroup_list) { | |
1159 | pr_err("--cgroup and --for-each-cgroup cannot be used together\n"); | |
1160 | return -1; | |
1161 | } | |
1162 | ||
1163 | return parse_cgroups(opt, str, unset); | |
1164 | } | |
1165 | ||
e69dc842 JY |
1166 | static int parse_hybrid_type(const struct option *opt, |
1167 | const char *str, | |
1168 | int unset __maybe_unused) | |
1169 | { | |
1170 | struct evlist *evlist = *(struct evlist **)opt->value; | |
1171 | ||
1172 | if (!list_empty(&evlist->core.entries)) { | |
1173 | fprintf(stderr, "Must define cputype before events/metrics\n"); | |
1174 | return -1; | |
1175 | } | |
1176 | ||
1177 | evlist->hybrid_pmu_name = perf_pmu__hybrid_type_to_pmu(str); | |
1178 | if (!evlist->hybrid_pmu_name) { | |
1179 | fprintf(stderr, "--cputype %s is not supported!\n", str); | |
1180 | return -1; | |
1181 | } | |
1182 | ||
1183 | return 0; | |
1184 | } | |
1185 | ||
51433ead | 1186 | static struct option stat_options[] = { |
e0547311 JO |
1187 | OPT_BOOLEAN('T', "transaction", &transaction_run, |
1188 | "hardware transaction statistics"), | |
1189 | OPT_CALLBACK('e', "event", &evsel_list, "event", | |
1190 | "event selector. use 'perf list' to list available events", | |
1191 | parse_events_option), | |
1192 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", | |
1193 | "event filter", parse_filter), | |
5698f26b | 1194 | OPT_BOOLEAN('i', "no-inherit", &stat_config.no_inherit, |
e0547311 JO |
1195 | "child tasks do not inherit counters"), |
1196 | OPT_STRING('p', "pid", &target.pid, "pid", | |
1197 | "stat events on existing process id"), | |
1198 | OPT_STRING('t', "tid", &target.tid, "tid", | |
1199 | "stat events on existing thread id"), | |
fa853c4b SL |
1200 | #ifdef HAVE_BPF_SKEL |
1201 | OPT_STRING('b', "bpf-prog", &target.bpf_str, "bpf-prog-id", | |
1202 | "stat events on existing bpf program id"), | |
7fac83aa SL |
1203 | OPT_BOOLEAN(0, "bpf-counters", &target.use_bpf, |
1204 | "use bpf program to count events"), | |
1205 | OPT_STRING(0, "bpf-attr-map", &target.attr_map, "attr-map-path", | |
1206 | "path to perf_event_attr map"), | |
fa853c4b | 1207 | #endif |
e0547311 JO |
1208 | OPT_BOOLEAN('a', "all-cpus", &target.system_wide, |
1209 | "system-wide collection from all CPUs"), | |
1210 | OPT_BOOLEAN('g', "group", &group, | |
1211 | "put the counters into a counter group"), | |
75998bb2 AK |
1212 | OPT_BOOLEAN(0, "scale", &stat_config.scale, |
1213 | "Use --no-scale to disable counter scaling for multiplexing"), | |
e0547311 JO |
1214 | OPT_INCR('v', "verbose", &verbose, |
1215 | "be more verbose (show counter open errors, etc)"), | |
d97ae04b | 1216 | OPT_INTEGER('r', "repeat", &stat_config.run_count, |
e0547311 | 1217 | "repeat command and print average + stddev (max: 100, forever: 0)"), |
54ac0b1b | 1218 | OPT_BOOLEAN(0, "table", &stat_config.walltime_run_table, |
e55c14af | 1219 | "display details about each run (only with -r option)"), |
aea0dca1 | 1220 | OPT_BOOLEAN('n', "null", &stat_config.null_run, |
e0547311 JO |
1221 | "null run - dont start any counters"), |
1222 | OPT_INCR('d', "detailed", &detailed_run, | |
1223 | "detailed run - start a lot of events"), | |
1224 | OPT_BOOLEAN('S', "sync", &sync_run, | |
1225 | "call sync() before starting a run"), | |
1226 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, | |
1227 | "print large numbers with thousands\' separators", | |
1228 | stat__set_big_num), | |
1229 | OPT_STRING('C', "cpu", &target.cpu_list, "cpu", | |
1230 | "list of cpus to monitor in system-wide"), | |
1231 | OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, | |
1232 | "disable CPU count aggregation", AGGR_NONE), | |
fdee335b | 1233 | OPT_BOOLEAN(0, "no-merge", &stat_config.no_merge, "Do not merge identical named events"), |
fa7070a3 | 1234 | OPT_STRING('x', "field-separator", &stat_config.csv_sep, "separator", |
e0547311 JO |
1235 | "print counts with custom separator"), |
1236 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", | |
d1c5a0e8 NK |
1237 | "monitor event in cgroup name only", parse_stat_cgroups), |
1238 | OPT_STRING(0, "for-each-cgroup", &stat_config.cgroup_list, "name", | |
1239 | "expand events for each cgroup"), | |
e0547311 JO |
1240 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
1241 | OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), | |
1242 | OPT_INTEGER(0, "log-fd", &output_fd, | |
1243 | "log output to fd, instead of stderr"), | |
1244 | OPT_STRING(0, "pre", &pre_cmd, "command", | |
1245 | "command to run prior to the measured command"), | |
1246 | OPT_STRING(0, "post", &post_cmd, "command", | |
1247 | "command to run after to the measured command"), | |
1248 | OPT_UINTEGER('I', "interval-print", &stat_config.interval, | |
9dc9a95f AB |
1249 | "print counts at regular interval in ms " |
1250 | "(overhead is possible for values <= 100ms)"), | |
db06a269 | 1251 | OPT_INTEGER(0, "interval-count", &stat_config.times, |
1252 | "print counts for fixed number of times"), | |
132c6ba3 | 1253 | OPT_BOOLEAN(0, "interval-clear", &stat_config.interval_clear, |
9660e08e | 1254 | "clear screen in between new interval"), |
f1f8ad52 | 1255 | OPT_UINTEGER(0, "timeout", &stat_config.timeout, |
1256 | "stop workload and print counts after a timeout period in ms (>= 10ms)"), | |
e0547311 JO |
1257 | OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, |
1258 | "aggregate counts per processor socket", AGGR_SOCKET), | |
db5742b6 KL |
1259 | OPT_SET_UINT(0, "per-die", &stat_config.aggr_mode, |
1260 | "aggregate counts per processor die", AGGR_DIE), | |
e0547311 JO |
1261 | OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, |
1262 | "aggregate counts per physical processor core", AGGR_CORE), | |
1263 | OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, | |
1264 | "aggregate counts per thread", AGGR_THREAD), | |
86895b48 JO |
1265 | OPT_SET_UINT(0, "per-node", &stat_config.aggr_mode, |
1266 | "aggregate counts per numa node", AGGR_NODE), | |
2162b9c6 AB |
1267 | OPT_INTEGER('D', "delay", &stat_config.initial_delay, |
1268 | "ms to wait before starting measurement after program start (-1: start with events disabled)"), | |
0ce5aa02 | 1269 | OPT_CALLBACK_NOOPT(0, "metric-only", &stat_config.metric_only, NULL, |
44b1e60a | 1270 | "Only print computed metrics. No raw values", enable_metric_only), |
05530a79 IR |
1271 | OPT_BOOLEAN(0, "metric-no-group", &stat_config.metric_no_group, |
1272 | "don't group metric events, impacts multiplexing"), | |
1273 | OPT_BOOLEAN(0, "metric-no-merge", &stat_config.metric_no_merge, | |
1274 | "don't try to share events between metrics in a group"), | |
44b1e60a | 1275 | OPT_BOOLEAN(0, "topdown", &topdown_run, |
63e39aa6 KL |
1276 | "measure top-down statistics"), |
1277 | OPT_UINTEGER(0, "td-level", &stat_config.topdown_level, | |
1278 | "Set the metrics level for the top-down statistics (0: max level)"), | |
daefd0bc KL |
1279 | OPT_BOOLEAN(0, "smi-cost", &smi_cost, |
1280 | "measure SMI cost"), | |
b18f3e36 AK |
1281 | OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list", |
1282 | "monitor specified metrics or metric groups (separated by ,)", | |
1283 | parse_metric_groups), | |
dd071024 JY |
1284 | OPT_BOOLEAN_FLAG(0, "all-kernel", &stat_config.all_kernel, |
1285 | "Configure all used events to run in kernel space.", | |
1286 | PARSE_OPT_EXCLUSIVE), | |
1287 | OPT_BOOLEAN_FLAG(0, "all-user", &stat_config.all_user, | |
1288 | "Configure all used events to run in user space.", | |
1289 | PARSE_OPT_EXCLUSIVE), | |
1af62ce6 JY |
1290 | OPT_BOOLEAN(0, "percore-show-thread", &stat_config.percore_show_thread, |
1291 | "Use with 'percore' event qualifier to show the event " | |
1292 | "counts of one hardware thread by sum up total hardware " | |
1293 | "threads of same physical core"), | |
ee6a9614 JY |
1294 | OPT_BOOLEAN(0, "summary", &stat_config.summary, |
1295 | "print summary for interval mode"), | |
0bdad978 JY |
1296 | OPT_BOOLEAN(0, "no-csv-summary", &stat_config.no_csv_summary, |
1297 | "don't print 'summary' for CSV summary output"), | |
55a4de94 AK |
1298 | OPT_BOOLEAN(0, "quiet", &stat_config.quiet, |
1299 | "don't print output (useful with record)"), | |
e69dc842 JY |
1300 | OPT_CALLBACK(0, "cputype", &evsel_list, "hybrid cpu type", |
1301 | "Only enable events on applying cpu with this type " | |
1302 | "for hybrid platform (e.g. core or atom)", | |
1303 | parse_hybrid_type), | |
70943490 SE |
1304 | #ifdef HAVE_LIBPFM |
1305 | OPT_CALLBACK(0, "pfm-events", &evsel_list, "event", | |
1306 | "libpfm4 event selector. use 'perf list' to list available events", | |
1307 | parse_libpfm_events_option), | |
1308 | #endif | |
a8fcbd26 | 1309 | OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd] or fifo:ctl-fifo[,ack-fifo]", |
27e9769a | 1310 | "Listen on ctl-fd descriptor for command to control measurement ('enable': enable events, 'disable': disable events).\n" |
a8fcbd26 AH |
1311 | "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.\n" |
1312 | "\t\t\t Alternatively, ctl-fifo / ack-fifo will be opened and used as ctl-fd / ack-fd.", | |
27e9769a | 1313 | parse_control_option), |
f07952b1 AA |
1314 | OPT_CALLBACK_OPTARG(0, "iostat", &evsel_list, &stat_config, "default", |
1315 | "measure I/O performance metrics provided by arch/platform", | |
1316 | iostat_parse), | |
e0547311 JO |
1317 | OPT_END() |
1318 | }; | |
1319 | ||
5f50e15c IR |
1320 | static const char *const aggr_mode__string[] = { |
1321 | [AGGR_CORE] = "core", | |
1322 | [AGGR_DIE] = "die", | |
1323 | [AGGR_GLOBAL] = "global", | |
1324 | [AGGR_NODE] = "node", | |
1325 | [AGGR_NONE] = "none", | |
1326 | [AGGR_SOCKET] = "socket", | |
1327 | [AGGR_THREAD] = "thread", | |
1328 | [AGGR_UNSET] = "unset", | |
1329 | }; | |
1330 | ||
2760f5a1 | 1331 | static struct aggr_cpu_id perf_stat__get_socket(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1332 | struct perf_cpu cpu) |
1fe7a300 | 1333 | { |
973aeb3c | 1334 | return aggr_cpu_id__socket(cpu, /*data=*/NULL); |
1fe7a300 JO |
1335 | } |
1336 | ||
2760f5a1 | 1337 | static struct aggr_cpu_id perf_stat__get_die(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1338 | struct perf_cpu cpu) |
db5742b6 | 1339 | { |
973aeb3c | 1340 | return aggr_cpu_id__die(cpu, /*data=*/NULL); |
db5742b6 KL |
1341 | } |
1342 | ||
2760f5a1 | 1343 | static struct aggr_cpu_id perf_stat__get_core(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1344 | struct perf_cpu cpu) |
1fe7a300 | 1345 | { |
973aeb3c | 1346 | return aggr_cpu_id__core(cpu, /*data=*/NULL); |
1fe7a300 JO |
1347 | } |
1348 | ||
2760f5a1 | 1349 | static struct aggr_cpu_id perf_stat__get_node(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1350 | struct perf_cpu cpu) |
86895b48 | 1351 | { |
973aeb3c | 1352 | return aggr_cpu_id__node(cpu, /*data=*/NULL); |
86895b48 JO |
1353 | } |
1354 | ||
2760f5a1 | 1355 | static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config, |
6d18804b | 1356 | aggr_get_id_t get_id, struct perf_cpu cpu) |
1e5a2931 | 1357 | { |
51b826fa | 1358 | struct aggr_cpu_id id = aggr_cpu_id__empty(); |
1e5a2931 | 1359 | |
6d18804b IR |
1360 | if (aggr_cpu_id__is_empty(&config->cpus_aggr_map->map[cpu.cpu])) |
1361 | config->cpus_aggr_map->map[cpu.cpu] = get_id(config, cpu); | |
1e5a2931 | 1362 | |
6d18804b | 1363 | id = config->cpus_aggr_map->map[cpu.cpu]; |
2760f5a1 | 1364 | return id; |
1e5a2931 JO |
1365 | } |
1366 | ||
2760f5a1 | 1367 | static struct aggr_cpu_id perf_stat__get_socket_cached(struct perf_stat_config *config, |
6d18804b | 1368 | struct perf_cpu cpu) |
1e5a2931 | 1369 | { |
88031a0d | 1370 | return perf_stat__get_aggr(config, perf_stat__get_socket, cpu); |
1e5a2931 JO |
1371 | } |
1372 | ||
2760f5a1 | 1373 | static struct aggr_cpu_id perf_stat__get_die_cached(struct perf_stat_config *config, |
6d18804b | 1374 | struct perf_cpu cpu) |
db5742b6 | 1375 | { |
88031a0d | 1376 | return perf_stat__get_aggr(config, perf_stat__get_die, cpu); |
db5742b6 KL |
1377 | } |
1378 | ||
2760f5a1 | 1379 | static struct aggr_cpu_id perf_stat__get_core_cached(struct perf_stat_config *config, |
6d18804b | 1380 | struct perf_cpu cpu) |
1e5a2931 | 1381 | { |
88031a0d | 1382 | return perf_stat__get_aggr(config, perf_stat__get_core, cpu); |
1e5a2931 JO |
1383 | } |
1384 | ||
2760f5a1 | 1385 | static struct aggr_cpu_id perf_stat__get_node_cached(struct perf_stat_config *config, |
6d18804b | 1386 | struct perf_cpu cpu) |
86895b48 | 1387 | { |
88031a0d | 1388 | return perf_stat__get_aggr(config, perf_stat__get_node, cpu); |
86895b48 JO |
1389 | } |
1390 | ||
4fc4d8df JY |
1391 | static bool term_percore_set(void) |
1392 | { | |
32dcd021 | 1393 | struct evsel *counter; |
4fc4d8df JY |
1394 | |
1395 | evlist__for_each_entry(evsel_list, counter) { | |
1396 | if (counter->percore) | |
1397 | return true; | |
1398 | } | |
1399 | ||
1400 | return false; | |
1401 | } | |
1402 | ||
5f50e15c | 1403 | static aggr_cpu_id_get_t aggr_mode__get_aggr(enum aggr_mode aggr_mode) |
86ee6e18 | 1404 | { |
5f50e15c IR |
1405 | switch (aggr_mode) { |
1406 | case AGGR_SOCKET: | |
973aeb3c | 1407 | return aggr_cpu_id__socket; |
5f50e15c | 1408 | case AGGR_DIE: |
973aeb3c | 1409 | return aggr_cpu_id__die; |
5f50e15c | 1410 | case AGGR_CORE: |
973aeb3c | 1411 | return aggr_cpu_id__core; |
5f50e15c | 1412 | case AGGR_NODE: |
973aeb3c | 1413 | return aggr_cpu_id__node; |
5f50e15c IR |
1414 | case AGGR_NONE: |
1415 | if (term_percore_set()) | |
973aeb3c | 1416 | return aggr_cpu_id__core; |
5f50e15c IR |
1417 | |
1418 | return NULL; | |
1419 | case AGGR_GLOBAL: | |
1420 | case AGGR_THREAD: | |
1421 | case AGGR_UNSET: | |
1422 | default: | |
1423 | return NULL; | |
1424 | } | |
1425 | } | |
1e5a2931 | 1426 | |
5f50e15c IR |
1427 | static aggr_get_id_t aggr_mode__get_id(enum aggr_mode aggr_mode) |
1428 | { | |
1429 | switch (aggr_mode) { | |
86ee6e18 | 1430 | case AGGR_SOCKET: |
5f50e15c | 1431 | return perf_stat__get_socket_cached; |
db5742b6 | 1432 | case AGGR_DIE: |
5f50e15c | 1433 | return perf_stat__get_die_cached; |
12c08a9f | 1434 | case AGGR_CORE: |
5f50e15c | 1435 | return perf_stat__get_core_cached; |
86895b48 | 1436 | case AGGR_NODE: |
5f50e15c | 1437 | return perf_stat__get_node_cached; |
86ee6e18 | 1438 | case AGGR_NONE: |
4fc4d8df | 1439 | if (term_percore_set()) { |
5f50e15c | 1440 | return perf_stat__get_core_cached; |
4fc4d8df | 1441 | } |
5f50e15c | 1442 | return NULL; |
86ee6e18 | 1443 | case AGGR_GLOBAL: |
32b8af82 | 1444 | case AGGR_THREAD: |
208df99e | 1445 | case AGGR_UNSET: |
86ee6e18 | 1446 | default: |
5f50e15c IR |
1447 | return NULL; |
1448 | } | |
1449 | } | |
1450 | ||
1451 | static int perf_stat_init_aggr_mode(void) | |
1452 | { | |
1453 | int nr; | |
1454 | aggr_cpu_id_get_t get_id = aggr_mode__get_aggr(stat_config.aggr_mode); | |
1455 | ||
1456 | if (get_id) { | |
1457 | stat_config.aggr_map = cpu_aggr_map__new(evsel_list->core.cpus, | |
1458 | get_id, /*data=*/NULL); | |
1459 | if (!stat_config.aggr_map) { | |
1460 | pr_err("cannot build %s map", aggr_mode__string[stat_config.aggr_mode]); | |
1461 | return -1; | |
1462 | } | |
1463 | stat_config.aggr_get_id = aggr_mode__get_id(stat_config.aggr_mode); | |
86ee6e18 | 1464 | } |
1e5a2931 JO |
1465 | |
1466 | /* | |
1467 | * The evsel_list->cpus is the base we operate on, | |
1468 | * taking the highest cpu number to be the size of | |
1469 | * the aggregation translate cpumap. | |
1470 | */ | |
6d18804b | 1471 | nr = perf_cpu_map__max(evsel_list->core.cpus).cpu; |
d526e1a0 | 1472 | stat_config.cpus_aggr_map = cpu_aggr_map__empty_new(nr + 1); |
6f6b6594 | 1473 | return stat_config.cpus_aggr_map ? 0 : -ENOMEM; |
86ee6e18 SE |
1474 | } |
1475 | ||
d526e1a0 JC |
1476 | static void cpu_aggr_map__delete(struct cpu_aggr_map *map) |
1477 | { | |
1478 | if (map) { | |
1479 | WARN_ONCE(refcount_read(&map->refcnt) != 0, | |
1480 | "cpu_aggr_map refcnt unbalanced\n"); | |
1481 | free(map); | |
1482 | } | |
1483 | } | |
1484 | ||
1485 | static void cpu_aggr_map__put(struct cpu_aggr_map *map) | |
1486 | { | |
1487 | if (map && refcount_dec_and_test(&map->refcnt)) | |
1488 | cpu_aggr_map__delete(map); | |
1489 | } | |
1490 | ||
544c2ae7 MH |
1491 | static void perf_stat__exit_aggr_mode(void) |
1492 | { | |
d526e1a0 JC |
1493 | cpu_aggr_map__put(stat_config.aggr_map); |
1494 | cpu_aggr_map__put(stat_config.cpus_aggr_map); | |
6f6b6594 JO |
1495 | stat_config.aggr_map = NULL; |
1496 | stat_config.cpus_aggr_map = NULL; | |
544c2ae7 MH |
1497 | } |
1498 | ||
6d18804b | 1499 | static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(struct perf_cpu cpu, void *data) |
68d702f7 JO |
1500 | { |
1501 | struct perf_env *env = data; | |
51b826fa | 1502 | struct aggr_cpu_id id = aggr_cpu_id__empty(); |
2760f5a1 | 1503 | |
6d18804b IR |
1504 | if (cpu.cpu != -1) |
1505 | id.socket = env->cpu[cpu.cpu].socket_id; | |
68d702f7 | 1506 | |
2760f5a1 | 1507 | return id; |
68d702f7 JO |
1508 | } |
1509 | ||
6d18804b | 1510 | static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(struct perf_cpu cpu, void *data) |
db5742b6 KL |
1511 | { |
1512 | struct perf_env *env = data; | |
51b826fa | 1513 | struct aggr_cpu_id id = aggr_cpu_id__empty(); |
db5742b6 | 1514 | |
6d18804b | 1515 | if (cpu.cpu != -1) { |
db5742b6 | 1516 | /* |
1a270cb6 JC |
1517 | * die_id is relative to socket, so start |
1518 | * with the socket ID and then add die to | |
1519 | * make a unique ID. | |
db5742b6 | 1520 | */ |
6d18804b IR |
1521 | id.socket = env->cpu[cpu.cpu].socket_id; |
1522 | id.die = env->cpu[cpu.cpu].die_id; | |
db5742b6 KL |
1523 | } |
1524 | ||
2760f5a1 | 1525 | return id; |
db5742b6 KL |
1526 | } |
1527 | ||
6d18804b | 1528 | static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(struct perf_cpu cpu, void *data) |
68d702f7 JO |
1529 | { |
1530 | struct perf_env *env = data; | |
51b826fa | 1531 | struct aggr_cpu_id id = aggr_cpu_id__empty(); |
68d702f7 | 1532 | |
6d18804b | 1533 | if (cpu.cpu != -1) { |
68d702f7 | 1534 | /* |
db5742b6 | 1535 | * core_id is relative to socket and die, |
b9933817 JC |
1536 | * we need a global id. So we set |
1537 | * socket, die id and core id | |
68d702f7 | 1538 | */ |
6d18804b IR |
1539 | id.socket = env->cpu[cpu.cpu].socket_id; |
1540 | id.die = env->cpu[cpu.cpu].die_id; | |
1541 | id.core = env->cpu[cpu.cpu].core_id; | |
68d702f7 JO |
1542 | } |
1543 | ||
2760f5a1 | 1544 | return id; |
68d702f7 JO |
1545 | } |
1546 | ||
6d18804b | 1547 | static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(struct perf_cpu cpu, void *data) |
86895b48 | 1548 | { |
51b826fa | 1549 | struct aggr_cpu_id id = aggr_cpu_id__empty(); |
86895b48 | 1550 | |
fcd83a35 | 1551 | id.node = perf_env__numa_node(data, cpu); |
2760f5a1 | 1552 | return id; |
86895b48 JO |
1553 | } |
1554 | ||
2760f5a1 | 1555 | static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1556 | struct perf_cpu cpu) |
68d702f7 | 1557 | { |
88031a0d | 1558 | return perf_env__get_socket_aggr_by_cpu(cpu, &perf_stat.session->header.env); |
68d702f7 | 1559 | } |
2760f5a1 | 1560 | static struct aggr_cpu_id perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1561 | struct perf_cpu cpu) |
db5742b6 | 1562 | { |
88031a0d | 1563 | return perf_env__get_die_aggr_by_cpu(cpu, &perf_stat.session->header.env); |
db5742b6 | 1564 | } |
68d702f7 | 1565 | |
2760f5a1 | 1566 | static struct aggr_cpu_id perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1567 | struct perf_cpu cpu) |
68d702f7 | 1568 | { |
88031a0d | 1569 | return perf_env__get_core_aggr_by_cpu(cpu, &perf_stat.session->header.env); |
68d702f7 JO |
1570 | } |
1571 | ||
2760f5a1 | 1572 | static struct aggr_cpu_id perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused, |
6d18804b | 1573 | struct perf_cpu cpu) |
86895b48 | 1574 | { |
88031a0d | 1575 | return perf_env__get_node_aggr_by_cpu(cpu, &perf_stat.session->header.env); |
86895b48 JO |
1576 | } |
1577 | ||
5f50e15c | 1578 | static aggr_cpu_id_get_t aggr_mode__get_aggr_file(enum aggr_mode aggr_mode) |
68d702f7 | 1579 | { |
5f50e15c IR |
1580 | switch (aggr_mode) { |
1581 | case AGGR_SOCKET: | |
1582 | return perf_env__get_socket_aggr_by_cpu; | |
1583 | case AGGR_DIE: | |
1584 | return perf_env__get_die_aggr_by_cpu; | |
1585 | case AGGR_CORE: | |
1586 | return perf_env__get_core_aggr_by_cpu; | |
1587 | case AGGR_NODE: | |
1588 | return perf_env__get_node_aggr_by_cpu; | |
1589 | case AGGR_NONE: | |
1590 | case AGGR_GLOBAL: | |
1591 | case AGGR_THREAD: | |
1592 | case AGGR_UNSET: | |
1593 | default: | |
1594 | return NULL; | |
1595 | } | |
1596 | } | |
68d702f7 | 1597 | |
5f50e15c IR |
1598 | static aggr_get_id_t aggr_mode__get_id_file(enum aggr_mode aggr_mode) |
1599 | { | |
1600 | switch (aggr_mode) { | |
68d702f7 | 1601 | case AGGR_SOCKET: |
5f50e15c | 1602 | return perf_stat__get_socket_file; |
db5742b6 | 1603 | case AGGR_DIE: |
5f50e15c | 1604 | return perf_stat__get_die_file; |
68d702f7 | 1605 | case AGGR_CORE: |
5f50e15c | 1606 | return perf_stat__get_core_file; |
86895b48 | 1607 | case AGGR_NODE: |
5f50e15c | 1608 | return perf_stat__get_node_file; |
68d702f7 JO |
1609 | case AGGR_NONE: |
1610 | case AGGR_GLOBAL: | |
1611 | case AGGR_THREAD: | |
1612 | case AGGR_UNSET: | |
1613 | default: | |
5f50e15c | 1614 | return NULL; |
68d702f7 | 1615 | } |
5f50e15c IR |
1616 | } |
1617 | ||
1618 | static int perf_stat_init_aggr_mode_file(struct perf_stat *st) | |
1619 | { | |
1620 | struct perf_env *env = &st->session->header.env; | |
1621 | aggr_cpu_id_get_t get_id = aggr_mode__get_aggr_file(stat_config.aggr_mode); | |
68d702f7 | 1622 | |
5f50e15c IR |
1623 | if (!get_id) |
1624 | return 0; | |
1625 | ||
1626 | stat_config.aggr_map = cpu_aggr_map__new(evsel_list->core.cpus, get_id, env); | |
1627 | if (!stat_config.aggr_map) { | |
1628 | pr_err("cannot build %s map", aggr_mode__string[stat_config.aggr_mode]); | |
1629 | return -1; | |
1630 | } | |
1631 | stat_config.aggr_get_id = aggr_mode__get_id_file(stat_config.aggr_mode); | |
68d702f7 JO |
1632 | return 0; |
1633 | } | |
1634 | ||
2cba3ffb IM |
1635 | /* |
1636 | * Add default attributes, if there were no attributes specified or | |
1637 | * if -d/--detailed, -d -d or -d -d -d is used: | |
1638 | */ | |
1639 | static int add_default_attributes(void) | |
1640 | { | |
44b1e60a | 1641 | int err; |
9dec4473 | 1642 | struct perf_event_attr default_attrs0[] = { |
b070a547 ACM |
1643 | |
1644 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1645 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1646 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1647 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
1648 | ||
1649 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
9dec4473 AK |
1650 | }; |
1651 | struct perf_event_attr frontend_attrs[] = { | |
b070a547 | 1652 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, |
9dec4473 AK |
1653 | }; |
1654 | struct perf_event_attr backend_attrs[] = { | |
b070a547 | 1655 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, |
9dec4473 AK |
1656 | }; |
1657 | struct perf_event_attr default_attrs1[] = { | |
b070a547 ACM |
1658 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, |
1659 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
1660 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
1661 | ||
ac2dc29e JY |
1662 | }; |
1663 | struct perf_event_attr default_sw_attrs[] = { | |
1664 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1665 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1666 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1667 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
b070a547 ACM |
1668 | }; |
1669 | ||
1670 | /* | |
1671 | * Detailed stats (-d), covering the L1 and last level data caches: | |
1672 | */ | |
1673 | struct perf_event_attr detailed_attrs[] = { | |
1674 | ||
1675 | { .type = PERF_TYPE_HW_CACHE, | |
1676 | .config = | |
1677 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1678 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1679 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1680 | ||
1681 | { .type = PERF_TYPE_HW_CACHE, | |
1682 | .config = | |
1683 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1684 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1685 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1686 | ||
1687 | { .type = PERF_TYPE_HW_CACHE, | |
1688 | .config = | |
1689 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1690 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1691 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1692 | ||
1693 | { .type = PERF_TYPE_HW_CACHE, | |
1694 | .config = | |
1695 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1696 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1697 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1698 | }; | |
1699 | ||
1700 | /* | |
1701 | * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: | |
1702 | */ | |
1703 | struct perf_event_attr very_detailed_attrs[] = { | |
1704 | ||
1705 | { .type = PERF_TYPE_HW_CACHE, | |
1706 | .config = | |
1707 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1708 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1709 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1710 | ||
1711 | { .type = PERF_TYPE_HW_CACHE, | |
1712 | .config = | |
1713 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1714 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1715 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1716 | ||
1717 | { .type = PERF_TYPE_HW_CACHE, | |
1718 | .config = | |
1719 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1720 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1721 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1722 | ||
1723 | { .type = PERF_TYPE_HW_CACHE, | |
1724 | .config = | |
1725 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1726 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1727 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1728 | ||
1729 | { .type = PERF_TYPE_HW_CACHE, | |
1730 | .config = | |
1731 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1732 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1733 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1734 | ||
1735 | { .type = PERF_TYPE_HW_CACHE, | |
1736 | .config = | |
1737 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1738 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1739 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1740 | ||
1741 | }; | |
1742 | ||
1743 | /* | |
1744 | * Very, very detailed stats (-d -d -d), adding prefetch events: | |
1745 | */ | |
1746 | struct perf_event_attr very_very_detailed_attrs[] = { | |
1747 | ||
1748 | { .type = PERF_TYPE_HW_CACHE, | |
1749 | .config = | |
1750 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1751 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1752 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1753 | ||
1754 | { .type = PERF_TYPE_HW_CACHE, | |
1755 | .config = | |
1756 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1757 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1758 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1759 | }; | |
2cba3ffb | 1760 | /* Set attrs if no event is selected and !null_run: */ |
aea0dca1 | 1761 | if (stat_config.null_run) |
2cba3ffb IM |
1762 | return 0; |
1763 | ||
4cabc3d1 | 1764 | if (transaction_run) { |
07eafd4e | 1765 | struct parse_events_error errinfo; |
742d92ff | 1766 | /* Handle -T as -M transaction. Once platform specific metrics |
4d39c89f | 1767 | * support has been added to the json files, all architectures |
742d92ff TR |
1768 | * will use this approach. To determine transaction support |
1769 | * on an architecture test for such a metric name. | |
1770 | */ | |
1771 | if (metricgroup__has_metric("transaction")) { | |
1772 | struct option opt = { .value = &evsel_list }; | |
1773 | ||
1774 | return metricgroup__parse_groups(&opt, "transaction", | |
05530a79 IR |
1775 | stat_config.metric_no_group, |
1776 | stat_config.metric_no_merge, | |
d0192fdb | 1777 | &stat_config.metric_events); |
742d92ff TR |
1778 | } |
1779 | ||
07eafd4e | 1780 | parse_events_error__init(&errinfo); |
4cabc3d1 AK |
1781 | if (pmu_have_event("cpu", "cycles-ct") && |
1782 | pmu_have_event("cpu", "el-start")) | |
fca32340 TR |
1783 | err = parse_events(evsel_list, transaction_attrs, |
1784 | &errinfo); | |
4cabc3d1 | 1785 | else |
fca32340 TR |
1786 | err = parse_events(evsel_list, |
1787 | transaction_limited_attrs, | |
1788 | &errinfo); | |
a454742c | 1789 | if (err) { |
4cabc3d1 | 1790 | fprintf(stderr, "Cannot set up transaction events\n"); |
6c191289 | 1791 | parse_events_error__print(&errinfo, transaction_attrs); |
4cabc3d1 | 1792 | } |
07eafd4e IR |
1793 | parse_events_error__exit(&errinfo); |
1794 | return err ? -1 : 0; | |
4cabc3d1 AK |
1795 | } |
1796 | ||
daefd0bc | 1797 | if (smi_cost) { |
07eafd4e | 1798 | struct parse_events_error errinfo; |
daefd0bc KL |
1799 | int smi; |
1800 | ||
1801 | if (sysfs__read_int(FREEZE_ON_SMI_PATH, &smi) < 0) { | |
1802 | fprintf(stderr, "freeze_on_smi is not supported.\n"); | |
1803 | return -1; | |
1804 | } | |
1805 | ||
1806 | if (!smi) { | |
1807 | if (sysfs__write_int(FREEZE_ON_SMI_PATH, 1) < 0) { | |
1808 | fprintf(stderr, "Failed to set freeze_on_smi.\n"); | |
1809 | return -1; | |
1810 | } | |
1811 | smi_reset = true; | |
1812 | } | |
1813 | ||
07eafd4e IR |
1814 | if (!pmu_have_event("msr", "aperf") || |
1815 | !pmu_have_event("msr", "smi")) { | |
daefd0bc KL |
1816 | fprintf(stderr, "To measure SMI cost, it needs " |
1817 | "msr/aperf/, msr/smi/ and cpu/cycles/ support\n"); | |
1818 | return -1; | |
1819 | } | |
07eafd4e IR |
1820 | if (!force_metric_only) |
1821 | stat_config.metric_only = true; | |
1822 | ||
1823 | parse_events_error__init(&errinfo); | |
1824 | err = parse_events(evsel_list, smi_cost_attrs, &errinfo); | |
daefd0bc | 1825 | if (err) { |
6c191289 | 1826 | parse_events_error__print(&errinfo, smi_cost_attrs); |
daefd0bc | 1827 | fprintf(stderr, "Cannot set up SMI cost events\n"); |
daefd0bc | 1828 | } |
07eafd4e IR |
1829 | parse_events_error__exit(&errinfo); |
1830 | return err ? -1 : 0; | |
daefd0bc KL |
1831 | } |
1832 | ||
44b1e60a | 1833 | if (topdown_run) { |
63e39aa6 KL |
1834 | const char **metric_attrs = topdown_metric_attrs; |
1835 | unsigned int max_level = 1; | |
44b1e60a AK |
1836 | char *str = NULL; |
1837 | bool warn = false; | |
1838 | ||
55c36a9f AK |
1839 | if (!force_metric_only) |
1840 | stat_config.metric_only = true; | |
1841 | ||
63e39aa6 KL |
1842 | if (pmu_have_event("cpu", topdown_metric_L2_attrs[5])) { |
1843 | metric_attrs = topdown_metric_L2_attrs; | |
1844 | max_level = 2; | |
1845 | } | |
1846 | ||
1847 | if (stat_config.topdown_level > max_level) { | |
1848 | pr_err("Invalid top-down metrics level. The max level is %u.\n", max_level); | |
1849 | return -1; | |
1850 | } else if (!stat_config.topdown_level) | |
1851 | stat_config.topdown_level = max_level; | |
1852 | ||
1853 | if (topdown_filter_events(metric_attrs, &str, 1) < 0) { | |
55c36a9f AK |
1854 | pr_err("Out of memory\n"); |
1855 | return -1; | |
1856 | } | |
63e39aa6 | 1857 | if (metric_attrs[0] && str) { |
55c36a9f AK |
1858 | if (!stat_config.interval && !stat_config.metric_only) { |
1859 | fprintf(stat_config.output, | |
1860 | "Topdown accuracy may decrease when measuring long periods.\n" | |
1861 | "Please print the result regularly, e.g. -I1000\n"); | |
1862 | } | |
1863 | goto setup_metrics; | |
1864 | } | |
1865 | ||
1866 | zfree(&str); | |
1867 | ||
44b1e60a AK |
1868 | if (stat_config.aggr_mode != AGGR_GLOBAL && |
1869 | stat_config.aggr_mode != AGGR_CORE) { | |
1870 | pr_err("top down event configuration requires --per-core mode\n"); | |
1871 | return -1; | |
1872 | } | |
1873 | stat_config.aggr_mode = AGGR_CORE; | |
1874 | if (nr_cgroups || !target__has_cpu(&target)) { | |
1875 | pr_err("top down event configuration requires system-wide mode (-a)\n"); | |
1876 | return -1; | |
1877 | } | |
1878 | ||
44b1e60a AK |
1879 | if (topdown_filter_events(topdown_attrs, &str, |
1880 | arch_topdown_check_group(&warn)) < 0) { | |
1881 | pr_err("Out of memory\n"); | |
1882 | return -1; | |
1883 | } | |
1884 | if (topdown_attrs[0] && str) { | |
07eafd4e | 1885 | struct parse_events_error errinfo; |
44b1e60a AK |
1886 | if (warn) |
1887 | arch_topdown_group_warn(); | |
55c36a9f | 1888 | setup_metrics: |
07eafd4e | 1889 | parse_events_error__init(&errinfo); |
a5cfa621 | 1890 | err = parse_events(evsel_list, str, &errinfo); |
44b1e60a AK |
1891 | if (err) { |
1892 | fprintf(stderr, | |
1893 | "Cannot set up top down events %s: %d\n", | |
1894 | str, err); | |
6c191289 | 1895 | parse_events_error__print(&errinfo, str); |
07eafd4e | 1896 | parse_events_error__exit(&errinfo); |
c74b0503 | 1897 | free(str); |
44b1e60a AK |
1898 | return -1; |
1899 | } | |
07eafd4e | 1900 | parse_events_error__exit(&errinfo); |
44b1e60a AK |
1901 | } else { |
1902 | fprintf(stderr, "System does not support topdown\n"); | |
1903 | return -1; | |
1904 | } | |
1905 | free(str); | |
1906 | } | |
1907 | ||
6484d2f9 | 1908 | if (!evsel_list->core.nr_entries) { |
ac2dc29e | 1909 | if (perf_pmu__has_hybrid()) { |
07eafd4e | 1910 | struct parse_events_error errinfo; |
ac2dc29e JY |
1911 | const char *hybrid_str = "cycles,instructions,branches,branch-misses"; |
1912 | ||
1913 | if (target__has_cpu(&target)) | |
1914 | default_sw_attrs[0].config = PERF_COUNT_SW_CPU_CLOCK; | |
1915 | ||
1916 | if (evlist__add_default_attrs(evsel_list, | |
1917 | default_sw_attrs) < 0) { | |
1918 | return -1; | |
1919 | } | |
1920 | ||
07eafd4e | 1921 | parse_events_error__init(&errinfo); |
ac2dc29e JY |
1922 | err = parse_events(evsel_list, hybrid_str, &errinfo); |
1923 | if (err) { | |
1924 | fprintf(stderr, | |
1925 | "Cannot set up hybrid events %s: %d\n", | |
1926 | hybrid_str, err); | |
6c191289 | 1927 | parse_events_error__print(&errinfo, hybrid_str); |
ac2dc29e | 1928 | } |
07eafd4e IR |
1929 | parse_events_error__exit(&errinfo); |
1930 | return err ? -1 : 0; | |
ac2dc29e JY |
1931 | } |
1932 | ||
a1f3d567 NK |
1933 | if (target__has_cpu(&target)) |
1934 | default_attrs0[0].config = PERF_COUNT_SW_CPU_CLOCK; | |
1935 | ||
e251abee | 1936 | if (evlist__add_default_attrs(evsel_list, default_attrs0) < 0) |
9dec4473 AK |
1937 | return -1; |
1938 | if (pmu_have_event("cpu", "stalled-cycles-frontend")) { | |
e251abee | 1939 | if (evlist__add_default_attrs(evsel_list, frontend_attrs) < 0) |
9dec4473 AK |
1940 | return -1; |
1941 | } | |
1942 | if (pmu_have_event("cpu", "stalled-cycles-backend")) { | |
e251abee | 1943 | if (evlist__add_default_attrs(evsel_list, backend_attrs) < 0) |
9dec4473 AK |
1944 | return -1; |
1945 | } | |
e251abee | 1946 | if (evlist__add_default_attrs(evsel_list, default_attrs1) < 0) |
50d08e47 | 1947 | return -1; |
42641d6f | 1948 | |
5f148e7c | 1949 | stat_config.topdown_level = TOPDOWN_MAX_LEVEL; |
42641d6f KL |
1950 | if (arch_evlist__add_default_attrs(evsel_list) < 0) |
1951 | return -1; | |
2cba3ffb IM |
1952 | } |
1953 | ||
1954 | /* Detailed events get appended to the event list: */ | |
1955 | ||
1956 | if (detailed_run < 1) | |
1957 | return 0; | |
1958 | ||
1959 | /* Append detailed run extra attributes: */ | |
e251abee | 1960 | if (evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) |
50d08e47 | 1961 | return -1; |
2cba3ffb IM |
1962 | |
1963 | if (detailed_run < 2) | |
1964 | return 0; | |
1965 | ||
1966 | /* Append very detailed run extra attributes: */ | |
e251abee | 1967 | if (evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) |
50d08e47 | 1968 | return -1; |
2cba3ffb IM |
1969 | |
1970 | if (detailed_run < 3) | |
1971 | return 0; | |
1972 | ||
1973 | /* Append very, very detailed run extra attributes: */ | |
e251abee | 1974 | return evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); |
2cba3ffb IM |
1975 | } |
1976 | ||
8a59f3cc | 1977 | static const char * const stat_record_usage[] = { |
4979d0c7 JO |
1978 | "perf stat record [<options>]", |
1979 | NULL, | |
1980 | }; | |
1981 | ||
3ba78bd0 JO |
1982 | static void init_features(struct perf_session *session) |
1983 | { | |
1984 | int feat; | |
1985 | ||
1986 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) | |
1987 | perf_header__set_feat(&session->header, feat); | |
1988 | ||
8002a63f | 1989 | perf_header__clear_feat(&session->header, HEADER_DIR_FORMAT); |
3ba78bd0 JO |
1990 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); |
1991 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); | |
1992 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); | |
1993 | perf_header__clear_feat(&session->header, HEADER_AUXTRACE); | |
1994 | } | |
1995 | ||
4979d0c7 JO |
1996 | static int __cmd_record(int argc, const char **argv) |
1997 | { | |
1998 | struct perf_session *session; | |
8ceb41d7 | 1999 | struct perf_data *data = &perf_stat.data; |
4979d0c7 | 2000 | |
8a59f3cc | 2001 | argc = parse_options(argc, argv, stat_options, stat_record_usage, |
4979d0c7 JO |
2002 | PARSE_OPT_STOP_AT_NON_OPTION); |
2003 | ||
2004 | if (output_name) | |
2d4f2799 | 2005 | data->path = output_name; |
4979d0c7 | 2006 | |
d97ae04b | 2007 | if (stat_config.run_count != 1 || forever) { |
e9d6db8e JO |
2008 | pr_err("Cannot use -r option with perf stat record.\n"); |
2009 | return -1; | |
2010 | } | |
2011 | ||
2681bd85 | 2012 | session = perf_session__new(data, NULL); |
6ef81c55 MI |
2013 | if (IS_ERR(session)) { |
2014 | pr_err("Perf session creation failed\n"); | |
2015 | return PTR_ERR(session); | |
4979d0c7 JO |
2016 | } |
2017 | ||
3ba78bd0 JO |
2018 | init_features(session); |
2019 | ||
4979d0c7 JO |
2020 | session->evlist = evsel_list; |
2021 | perf_stat.session = session; | |
2022 | perf_stat.record = true; | |
2023 | return argc; | |
2024 | } | |
2025 | ||
89f1688a JO |
2026 | static int process_stat_round_event(struct perf_session *session, |
2027 | union perf_event *event) | |
a56f9390 | 2028 | { |
72932371 | 2029 | struct perf_record_stat_round *stat_round = &event->stat_round; |
32dcd021 | 2030 | struct evsel *counter; |
a56f9390 JO |
2031 | struct timespec tsh, *ts = NULL; |
2032 | const char **argv = session->header.env.cmdline_argv; | |
2033 | int argc = session->header.env.nr_cmdline; | |
2034 | ||
e5cadb93 | 2035 | evlist__for_each_entry(evsel_list, counter) |
a56f9390 JO |
2036 | perf_stat_process_counter(&stat_config, counter); |
2037 | ||
e3b03b6c AK |
2038 | if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL) |
2039 | update_stats(&walltime_nsecs_stats, stat_round->time); | |
a56f9390 | 2040 | |
e3b03b6c | 2041 | if (stat_config.interval && stat_round->time) { |
bd48c63e ACM |
2042 | tsh.tv_sec = stat_round->time / NSEC_PER_SEC; |
2043 | tsh.tv_nsec = stat_round->time % NSEC_PER_SEC; | |
a56f9390 JO |
2044 | ts = &tsh; |
2045 | } | |
2046 | ||
2047 | print_counters(ts, argc, argv); | |
2048 | return 0; | |
2049 | } | |
2050 | ||
62ba18ba | 2051 | static |
89f1688a JO |
2052 | int process_stat_config_event(struct perf_session *session, |
2053 | union perf_event *event) | |
62ba18ba | 2054 | { |
89f1688a | 2055 | struct perf_tool *tool = session->tool; |
68d702f7 JO |
2056 | struct perf_stat *st = container_of(tool, struct perf_stat, tool); |
2057 | ||
62ba18ba | 2058 | perf_event__read_stat_config(&stat_config, &event->stat_config); |
68d702f7 | 2059 | |
315c0a1f | 2060 | if (perf_cpu_map__empty(st->cpus)) { |
89af4e05 JO |
2061 | if (st->aggr_mode != AGGR_UNSET) |
2062 | pr_warning("warning: processing task data, aggregation mode not set\n"); | |
2063 | return 0; | |
2064 | } | |
2065 | ||
2066 | if (st->aggr_mode != AGGR_UNSET) | |
2067 | stat_config.aggr_mode = st->aggr_mode; | |
2068 | ||
8ceb41d7 | 2069 | if (perf_stat.data.is_pipe) |
68d702f7 JO |
2070 | perf_stat_init_aggr_mode(); |
2071 | else | |
2072 | perf_stat_init_aggr_mode_file(st); | |
2073 | ||
62ba18ba JO |
2074 | return 0; |
2075 | } | |
2076 | ||
1975d36e JO |
2077 | static int set_maps(struct perf_stat *st) |
2078 | { | |
2079 | if (!st->cpus || !st->threads) | |
2080 | return 0; | |
2081 | ||
2082 | if (WARN_ONCE(st->maps_allocated, "stats double allocation\n")) | |
2083 | return -EINVAL; | |
2084 | ||
453fa030 | 2085 | perf_evlist__set_maps(&evsel_list->core, st->cpus, st->threads); |
1975d36e | 2086 | |
53f5e908 | 2087 | if (evlist__alloc_stats(evsel_list, true)) |
1975d36e JO |
2088 | return -ENOMEM; |
2089 | ||
2090 | st->maps_allocated = true; | |
2091 | return 0; | |
2092 | } | |
2093 | ||
2094 | static | |
89f1688a JO |
2095 | int process_thread_map_event(struct perf_session *session, |
2096 | union perf_event *event) | |
1975d36e | 2097 | { |
89f1688a | 2098 | struct perf_tool *tool = session->tool; |
1975d36e JO |
2099 | struct perf_stat *st = container_of(tool, struct perf_stat, tool); |
2100 | ||
2101 | if (st->threads) { | |
2102 | pr_warning("Extra thread map event, ignoring.\n"); | |
2103 | return 0; | |
2104 | } | |
2105 | ||
2106 | st->threads = thread_map__new_event(&event->thread_map); | |
2107 | if (!st->threads) | |
2108 | return -ENOMEM; | |
2109 | ||
2110 | return set_maps(st); | |
2111 | } | |
2112 | ||
2113 | static | |
89f1688a JO |
2114 | int process_cpu_map_event(struct perf_session *session, |
2115 | union perf_event *event) | |
1975d36e | 2116 | { |
89f1688a | 2117 | struct perf_tool *tool = session->tool; |
1975d36e | 2118 | struct perf_stat *st = container_of(tool, struct perf_stat, tool); |
f854839b | 2119 | struct perf_cpu_map *cpus; |
1975d36e JO |
2120 | |
2121 | if (st->cpus) { | |
2122 | pr_warning("Extra cpu map event, ignoring.\n"); | |
2123 | return 0; | |
2124 | } | |
2125 | ||
2126 | cpus = cpu_map__new_data(&event->cpu_map.data); | |
2127 | if (!cpus) | |
2128 | return -ENOMEM; | |
2129 | ||
2130 | st->cpus = cpus; | |
2131 | return set_maps(st); | |
2132 | } | |
2133 | ||
8a59f3cc | 2134 | static const char * const stat_report_usage[] = { |
ba6039b6 JO |
2135 | "perf stat report [<options>]", |
2136 | NULL, | |
2137 | }; | |
2138 | ||
2139 | static struct perf_stat perf_stat = { | |
2140 | .tool = { | |
2141 | .attr = perf_event__process_attr, | |
fa6ea781 | 2142 | .event_update = perf_event__process_event_update, |
1975d36e JO |
2143 | .thread_map = process_thread_map_event, |
2144 | .cpu_map = process_cpu_map_event, | |
62ba18ba | 2145 | .stat_config = process_stat_config_event, |
a56f9390 JO |
2146 | .stat = perf_event__process_stat_event, |
2147 | .stat_round = process_stat_round_event, | |
ba6039b6 | 2148 | }, |
89af4e05 | 2149 | .aggr_mode = AGGR_UNSET, |
ba6039b6 JO |
2150 | }; |
2151 | ||
2152 | static int __cmd_report(int argc, const char **argv) | |
2153 | { | |
2154 | struct perf_session *session; | |
2155 | const struct option options[] = { | |
2156 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
89af4e05 JO |
2157 | OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode, |
2158 | "aggregate counts per processor socket", AGGR_SOCKET), | |
db5742b6 KL |
2159 | OPT_SET_UINT(0, "per-die", &perf_stat.aggr_mode, |
2160 | "aggregate counts per processor die", AGGR_DIE), | |
89af4e05 JO |
2161 | OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode, |
2162 | "aggregate counts per physical processor core", AGGR_CORE), | |
86895b48 JO |
2163 | OPT_SET_UINT(0, "per-node", &perf_stat.aggr_mode, |
2164 | "aggregate counts per numa node", AGGR_NODE), | |
89af4e05 JO |
2165 | OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode, |
2166 | "disable CPU count aggregation", AGGR_NONE), | |
ba6039b6 JO |
2167 | OPT_END() |
2168 | }; | |
2169 | struct stat st; | |
2170 | int ret; | |
2171 | ||
8a59f3cc | 2172 | argc = parse_options(argc, argv, options, stat_report_usage, 0); |
ba6039b6 JO |
2173 | |
2174 | if (!input_name || !strlen(input_name)) { | |
2175 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) | |
2176 | input_name = "-"; | |
2177 | else | |
2178 | input_name = "perf.data"; | |
2179 | } | |
2180 | ||
2d4f2799 JO |
2181 | perf_stat.data.path = input_name; |
2182 | perf_stat.data.mode = PERF_DATA_MODE_READ; | |
ba6039b6 | 2183 | |
2681bd85 | 2184 | session = perf_session__new(&perf_stat.data, &perf_stat.tool); |
6ef81c55 MI |
2185 | if (IS_ERR(session)) |
2186 | return PTR_ERR(session); | |
ba6039b6 JO |
2187 | |
2188 | perf_stat.session = session; | |
2189 | stat_config.output = stderr; | |
2190 | evsel_list = session->evlist; | |
2191 | ||
2192 | ret = perf_session__process_events(session); | |
2193 | if (ret) | |
2194 | return ret; | |
2195 | ||
2196 | perf_session__delete(session); | |
2197 | return 0; | |
2198 | } | |
2199 | ||
e3ba76de JO |
2200 | static void setup_system_wide(int forks) |
2201 | { | |
2202 | /* | |
2203 | * Make system wide (-a) the default target if | |
2204 | * no target was specified and one of following | |
2205 | * conditions is met: | |
2206 | * | |
2207 | * - there's no workload specified | |
2208 | * - there is workload specified but all requested | |
2209 | * events are system wide events | |
2210 | */ | |
2211 | if (!target__none(&target)) | |
2212 | return; | |
2213 | ||
2214 | if (!forks) | |
2215 | target.system_wide = true; | |
2216 | else { | |
32dcd021 | 2217 | struct evsel *counter; |
e3ba76de JO |
2218 | |
2219 | evlist__for_each_entry(evsel_list, counter) { | |
002a3d69 JY |
2220 | if (!counter->core.system_wide && |
2221 | strcmp(counter->name, "duration_time")) { | |
e3ba76de | 2222 | return; |
002a3d69 | 2223 | } |
e3ba76de JO |
2224 | } |
2225 | ||
6484d2f9 | 2226 | if (evsel_list->core.nr_entries) |
e3ba76de JO |
2227 | target.system_wide = true; |
2228 | } | |
2229 | } | |
2230 | ||
b0ad8ea6 | 2231 | int cmd_stat(int argc, const char **argv) |
5242519b | 2232 | { |
b070a547 ACM |
2233 | const char * const stat_usage[] = { |
2234 | "perf stat [<options>] [<command>]", | |
2235 | NULL | |
2236 | }; | |
fa853c4b | 2237 | int status = -EINVAL, run_idx, err; |
4aa9015f | 2238 | const char *mode; |
5821522e | 2239 | FILE *output = stderr; |
f1f8ad52 | 2240 | unsigned int interval, timeout; |
ba6039b6 | 2241 | const char * const stat_subcommands[] = { "record", "report" }; |
fa853c4b | 2242 | char errbuf[BUFSIZ]; |
42202dd5 | 2243 | |
5af52b51 SE |
2244 | setlocale(LC_ALL, ""); |
2245 | ||
0f98b11c | 2246 | evsel_list = evlist__new(); |
361c99a6 ACM |
2247 | if (evsel_list == NULL) |
2248 | return -ENOMEM; | |
2249 | ||
1669e509 | 2250 | parse_events__shrink_config_terms(); |
51433ead MP |
2251 | |
2252 | /* String-parsing callback-based options would segfault when negated */ | |
2253 | set_option_flag(stat_options, 'e', "event", PARSE_OPT_NONEG); | |
2254 | set_option_flag(stat_options, 'M', "metrics", PARSE_OPT_NONEG); | |
2255 | set_option_flag(stat_options, 'G', "cgroup", PARSE_OPT_NONEG); | |
2256 | ||
4979d0c7 JO |
2257 | argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands, |
2258 | (const char **) stat_usage, | |
2259 | PARSE_OPT_STOP_AT_NON_OPTION); | |
37932c18 | 2260 | perf_stat__collect_metric_expr(evsel_list); |
fb4605ba | 2261 | perf_stat__init_shadow_stats(); |
4979d0c7 | 2262 | |
fa7070a3 JO |
2263 | if (stat_config.csv_sep) { |
2264 | stat_config.csv_output = true; | |
2265 | if (!strcmp(stat_config.csv_sep, "\\t")) | |
2266 | stat_config.csv_sep = "\t"; | |
6edb78a2 | 2267 | } else |
fa7070a3 | 2268 | stat_config.csv_sep = DEFAULT_SEPARATOR; |
6edb78a2 | 2269 | |
4979d0c7 JO |
2270 | if (argc && !strncmp(argv[0], "rec", 3)) { |
2271 | argc = __cmd_record(argc, argv); | |
2272 | if (argc < 0) | |
2273 | return -1; | |
ba6039b6 JO |
2274 | } else if (argc && !strncmp(argv[0], "rep", 3)) |
2275 | return __cmd_report(argc, argv); | |
d7470b6a | 2276 | |
ec0d3d1f | 2277 | interval = stat_config.interval; |
f1f8ad52 | 2278 | timeout = stat_config.timeout; |
ec0d3d1f | 2279 | |
4979d0c7 JO |
2280 | /* |
2281 | * For record command the -o is already taken care of. | |
2282 | */ | |
2283 | if (!STAT_RECORD && output_name && strcmp(output_name, "-")) | |
4aa9015f SE |
2284 | output = NULL; |
2285 | ||
56f3bae7 JC |
2286 | if (output_name && output_fd) { |
2287 | fprintf(stderr, "cannot use both --output and --log-fd\n"); | |
e0547311 JO |
2288 | parse_options_usage(stat_usage, stat_options, "o", 1); |
2289 | parse_options_usage(NULL, stat_options, "log-fd", 0); | |
cc03c542 | 2290 | goto out; |
56f3bae7 | 2291 | } |
fc3e4d07 | 2292 | |
0ce5aa02 | 2293 | if (stat_config.metric_only && stat_config.aggr_mode == AGGR_THREAD) { |
54b50916 AK |
2294 | fprintf(stderr, "--metric-only is not supported with --per-thread\n"); |
2295 | goto out; | |
2296 | } | |
2297 | ||
d97ae04b | 2298 | if (stat_config.metric_only && stat_config.run_count > 1) { |
54b50916 AK |
2299 | fprintf(stderr, "--metric-only is not supported with -r\n"); |
2300 | goto out; | |
2301 | } | |
2302 | ||
54ac0b1b | 2303 | if (stat_config.walltime_run_table && stat_config.run_count <= 1) { |
e55c14af JO |
2304 | fprintf(stderr, "--table is only supported with -r\n"); |
2305 | parse_options_usage(stat_usage, stat_options, "r", 1); | |
2306 | parse_options_usage(NULL, stat_options, "table", 0); | |
2307 | goto out; | |
2308 | } | |
2309 | ||
fc3e4d07 SE |
2310 | if (output_fd < 0) { |
2311 | fprintf(stderr, "argument to --log-fd must be a > 0\n"); | |
e0547311 | 2312 | parse_options_usage(stat_usage, stat_options, "log-fd", 0); |
cc03c542 | 2313 | goto out; |
fc3e4d07 SE |
2314 | } |
2315 | ||
55a4de94 | 2316 | if (!output && !stat_config.quiet) { |
4aa9015f SE |
2317 | struct timespec tm; |
2318 | mode = append_file ? "a" : "w"; | |
2319 | ||
2320 | output = fopen(output_name, mode); | |
2321 | if (!output) { | |
2322 | perror("failed to create output file"); | |
fceda7fe | 2323 | return -1; |
4aa9015f SE |
2324 | } |
2325 | clock_gettime(CLOCK_REALTIME, &tm); | |
2326 | fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); | |
fc3e4d07 | 2327 | } else if (output_fd > 0) { |
56f3bae7 JC |
2328 | mode = append_file ? "a" : "w"; |
2329 | output = fdopen(output_fd, mode); | |
2330 | if (!output) { | |
2331 | perror("Failed opening logfd"); | |
2332 | return -errno; | |
2333 | } | |
4aa9015f SE |
2334 | } |
2335 | ||
5821522e JO |
2336 | stat_config.output = output; |
2337 | ||
d7470b6a SE |
2338 | /* |
2339 | * let the spreadsheet do the pretty-printing | |
2340 | */ | |
fa7070a3 | 2341 | if (stat_config.csv_output) { |
61a9f324 | 2342 | /* User explicitly passed -B? */ |
d7470b6a SE |
2343 | if (big_num_opt == 1) { |
2344 | fprintf(stderr, "-B option not supported with -x\n"); | |
e0547311 JO |
2345 | parse_options_usage(stat_usage, stat_options, "B", 1); |
2346 | parse_options_usage(NULL, stat_options, "x", 1); | |
cc03c542 | 2347 | goto out; |
d7470b6a | 2348 | } else /* Nope, so disable big number formatting */ |
34ff0866 | 2349 | stat_config.big_num = false; |
d7470b6a | 2350 | } else if (big_num_opt == 0) /* User passed --no-big-num */ |
34ff0866 | 2351 | stat_config.big_num = false; |
d7470b6a | 2352 | |
fa853c4b SL |
2353 | err = target__validate(&target); |
2354 | if (err) { | |
2355 | target__strerror(&target, err, errbuf, BUFSIZ); | |
2356 | pr_warning("%s\n", errbuf); | |
2357 | } | |
2358 | ||
e3ba76de | 2359 | setup_system_wide(argc); |
ac3063bd | 2360 | |
0ce2da14 JO |
2361 | /* |
2362 | * Display user/system times only for single | |
2363 | * run and when there's specified tracee. | |
2364 | */ | |
d97ae04b | 2365 | if ((stat_config.run_count == 1) && target__none(&target)) |
8897a891 | 2366 | stat_config.ru_display = true; |
0ce2da14 | 2367 | |
d97ae04b | 2368 | if (stat_config.run_count < 0) { |
cc03c542 | 2369 | pr_err("Run count must be a positive number\n"); |
e0547311 | 2370 | parse_options_usage(stat_usage, stat_options, "r", 1); |
cc03c542 | 2371 | goto out; |
d97ae04b | 2372 | } else if (stat_config.run_count == 0) { |
a7e191c3 | 2373 | forever = true; |
d97ae04b | 2374 | stat_config.run_count = 1; |
a7e191c3 | 2375 | } |
ddcacfa0 | 2376 | |
54ac0b1b JO |
2377 | if (stat_config.walltime_run_table) { |
2378 | stat_config.walltime_run = zalloc(stat_config.run_count * sizeof(stat_config.walltime_run[0])); | |
2379 | if (!stat_config.walltime_run) { | |
e55c14af JO |
2380 | pr_err("failed to setup -r option"); |
2381 | goto out; | |
2382 | } | |
2383 | } | |
2384 | ||
1d9f8d1b JY |
2385 | if ((stat_config.aggr_mode == AGGR_THREAD) && |
2386 | !target__has_task(&target)) { | |
2387 | if (!target.system_wide || target.cpu_list) { | |
2388 | fprintf(stderr, "The --per-thread option is only " | |
2389 | "available when monitoring via -p -t -a " | |
2390 | "options or only --per-thread.\n"); | |
2391 | parse_options_usage(NULL, stat_options, "p", 1); | |
2392 | parse_options_usage(NULL, stat_options, "t", 1); | |
2393 | goto out; | |
2394 | } | |
32b8af82 JO |
2395 | } |
2396 | ||
2397 | /* | |
2398 | * no_aggr, cgroup are for system-wide only | |
2399 | * --per-thread is aggregated per thread, we dont mix it with cpu mode | |
2400 | */ | |
421a50f3 | 2401 | if (((stat_config.aggr_mode != AGGR_GLOBAL && |
1c02f6c9 NK |
2402 | stat_config.aggr_mode != AGGR_THREAD) || |
2403 | (nr_cgroups || stat_config.cgroup_list)) && | |
602ad878 | 2404 | !target__has_cpu(&target)) { |
023695d9 SE |
2405 | fprintf(stderr, "both cgroup and no-aggregation " |
2406 | "modes only available in system-wide mode\n"); | |
2407 | ||
e0547311 JO |
2408 | parse_options_usage(stat_usage, stat_options, "G", 1); |
2409 | parse_options_usage(NULL, stat_options, "A", 1); | |
2410 | parse_options_usage(NULL, stat_options, "a", 1); | |
1c02f6c9 | 2411 | parse_options_usage(NULL, stat_options, "for-each-cgroup", 0); |
cc03c542 | 2412 | goto out; |
d7e7a451 SE |
2413 | } |
2414 | ||
f07952b1 AA |
2415 | if (stat_config.iostat_run) { |
2416 | status = iostat_prepare(evsel_list, &stat_config); | |
2417 | if (status) | |
2418 | goto out; | |
2419 | if (iostat_mode == IOSTAT_LIST) { | |
2420 | iostat_list(evsel_list, &stat_config); | |
2421 | goto out; | |
2422 | } else if (verbose) | |
2423 | iostat_list(evsel_list, &stat_config); | |
e4fe5d73 LX |
2424 | if (iostat_mode == IOSTAT_RUN && !target__has_cpu(&target)) |
2425 | target.system_wide = true; | |
f07952b1 AA |
2426 | } |
2427 | ||
2cba3ffb IM |
2428 | if (add_default_attributes()) |
2429 | goto out; | |
ddcacfa0 | 2430 | |
d1c5a0e8 NK |
2431 | if (stat_config.cgroup_list) { |
2432 | if (nr_cgroups > 0) { | |
2433 | pr_err("--cgroup and --for-each-cgroup cannot be used together\n"); | |
2434 | parse_options_usage(stat_usage, stat_options, "G", 1); | |
2435 | parse_options_usage(NULL, stat_options, "for-each-cgroup", 0); | |
2436 | goto out; | |
2437 | } | |
2438 | ||
b214ba8c | 2439 | if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, |
bb1c15b6 NK |
2440 | &stat_config.metric_events, true) < 0) { |
2441 | parse_options_usage(stat_usage, stat_options, | |
2442 | "for-each-cgroup", 0); | |
d1c5a0e8 | 2443 | goto out; |
bb1c15b6 | 2444 | } |
d1c5a0e8 NK |
2445 | } |
2446 | ||
1d9f8d1b JY |
2447 | if ((stat_config.aggr_mode == AGGR_THREAD) && (target.system_wide)) |
2448 | target.per_thread = true; | |
2449 | ||
1d3351e6 JY |
2450 | if (evlist__fix_hybrid_cpus(evsel_list, target.cpu_list)) { |
2451 | pr_err("failed to use cpu list %s\n", target.cpu_list); | |
2452 | goto out; | |
2453 | } | |
2454 | ||
2455 | target.hybrid = perf_pmu__has_hybrid(); | |
7748bb71 | 2456 | if (evlist__create_maps(evsel_list, &target) < 0) { |
602ad878 | 2457 | if (target__has_task(&target)) { |
77a6f014 | 2458 | pr_err("Problems finding threads of monitor\n"); |
e0547311 JO |
2459 | parse_options_usage(stat_usage, stat_options, "p", 1); |
2460 | parse_options_usage(NULL, stat_options, "t", 1); | |
602ad878 | 2461 | } else if (target__has_cpu(&target)) { |
77a6f014 | 2462 | perror("failed to parse CPUs map"); |
e0547311 JO |
2463 | parse_options_usage(stat_usage, stat_options, "C", 1); |
2464 | parse_options_usage(NULL, stat_options, "a", 1); | |
cc03c542 NK |
2465 | } |
2466 | goto out; | |
60d567e2 | 2467 | } |
32b8af82 | 2468 | |
a9a17902 JO |
2469 | evlist__check_cpu_maps(evsel_list); |
2470 | ||
32b8af82 JO |
2471 | /* |
2472 | * Initialize thread_map with comm names, | |
2473 | * so we could print it out on output. | |
2474 | */ | |
56739444 | 2475 | if (stat_config.aggr_mode == AGGR_THREAD) { |
03617c22 | 2476 | thread_map__read_comms(evsel_list->core.threads); |
56739444 JY |
2477 | if (target.system_wide) { |
2478 | if (runtime_stat_new(&stat_config, | |
a2f354e3 | 2479 | perf_thread_map__nr(evsel_list->core.threads))) { |
56739444 JY |
2480 | goto out; |
2481 | } | |
2482 | } | |
2483 | } | |
32b8af82 | 2484 | |
86895b48 JO |
2485 | if (stat_config.aggr_mode == AGGR_NODE) |
2486 | cpu__setup_cpunode_map(); | |
2487 | ||
db06a269 | 2488 | if (stat_config.times && interval) |
2489 | interval_count = true; | |
2490 | else if (stat_config.times && !interval) { | |
2491 | pr_err("interval-count option should be used together with " | |
2492 | "interval-print.\n"); | |
2493 | parse_options_usage(stat_usage, stat_options, "interval-count", 0); | |
2494 | parse_options_usage(stat_usage, stat_options, "I", 1); | |
2495 | goto out; | |
2496 | } | |
c45c6ea2 | 2497 | |
f1f8ad52 | 2498 | if (timeout && timeout < 100) { |
2499 | if (timeout < 10) { | |
2500 | pr_err("timeout must be >= 10ms.\n"); | |
2501 | parse_options_usage(stat_usage, stat_options, "timeout", 0); | |
2502 | goto out; | |
2503 | } else | |
2504 | pr_warning("timeout < 100ms. " | |
2505 | "The overhead percentage could be high in some cases. " | |
2506 | "Please proceed with caution.\n"); | |
2507 | } | |
2508 | if (timeout && interval) { | |
2509 | pr_err("timeout option is not supported with interval-print.\n"); | |
2510 | parse_options_usage(stat_usage, stat_options, "timeout", 0); | |
2511 | parse_options_usage(stat_usage, stat_options, "I", 1); | |
2512 | goto out; | |
2513 | } | |
2514 | ||
53f5e908 | 2515 | if (evlist__alloc_stats(evsel_list, interval)) |
03ad9747 | 2516 | goto out; |
d6d901c2 | 2517 | |
86ee6e18 | 2518 | if (perf_stat_init_aggr_mode()) |
03ad9747 | 2519 | goto out; |
86ee6e18 | 2520 | |
7d9ad16a JO |
2521 | /* |
2522 | * Set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless | |
2523 | * while avoiding that older tools show confusing messages. | |
2524 | * | |
2525 | * However for pipe sessions we need to keep it zero, | |
2526 | * because script's perf_evsel__check_attr is triggered | |
2527 | * by attr->sample_type != 0, and we can't run it on | |
2528 | * stat sessions. | |
2529 | */ | |
2530 | stat_config.identifier = !(STAT_RECORD && perf_stat.data.is_pipe); | |
2531 | ||
58d7e993 IM |
2532 | /* |
2533 | * We dont want to block the signals - that would cause | |
2534 | * child tasks to inherit that and Ctrl-C would not work. | |
2535 | * What we want is for Ctrl-C to work in the exec()-ed | |
2536 | * task, but being ignored by perf stat itself: | |
2537 | */ | |
f7b7c26e | 2538 | atexit(sig_atexit); |
a7e191c3 FD |
2539 | if (!forever) |
2540 | signal(SIGINT, skip_signal); | |
13370a9b | 2541 | signal(SIGCHLD, skip_signal); |
58d7e993 IM |
2542 | signal(SIGALRM, skip_signal); |
2543 | signal(SIGABRT, skip_signal); | |
2544 | ||
27e9769a AB |
2545 | if (evlist__initialize_ctlfd(evsel_list, stat_config.ctl_fd, stat_config.ctl_fd_ack)) |
2546 | goto out; | |
2547 | ||
42202dd5 | 2548 | status = 0; |
d97ae04b JO |
2549 | for (run_idx = 0; forever || run_idx < stat_config.run_count; run_idx++) { |
2550 | if (stat_config.run_count != 1 && verbose > 0) | |
4aa9015f SE |
2551 | fprintf(output, "[ perf stat: executing run #%d ... ]\n", |
2552 | run_idx + 1); | |
f9cef0a9 | 2553 | |
b63fd11c | 2554 | if (run_idx != 0) |
53f5e908 | 2555 | evlist__reset_prev_raw_counts(evsel_list); |
b63fd11c | 2556 | |
e55c14af | 2557 | status = run_perf_stat(argc, argv, run_idx); |
443f2d5b | 2558 | if (forever && status != -1 && !interval) { |
d4f63a47 | 2559 | print_counters(NULL, argc, argv); |
254ecbc7 | 2560 | perf_stat__reset_stats(); |
a7e191c3 | 2561 | } |
42202dd5 IM |
2562 | } |
2563 | ||
c7e5b328 | 2564 | if (!forever && status != -1 && (!interval || stat_config.summary)) |
d4f63a47 | 2565 | print_counters(NULL, argc, argv); |
d134ffb9 | 2566 | |
27e9769a AB |
2567 | evlist__finalize_ctlfd(evsel_list); |
2568 | ||
4979d0c7 JO |
2569 | if (STAT_RECORD) { |
2570 | /* | |
2571 | * We synthesize the kernel mmap record just so that older tools | |
2572 | * don't emit warnings about not being able to resolve symbols | |
4d39c89f | 2573 | * due to /proc/sys/kernel/kptr_restrict settings and instead provide |
4979d0c7 JO |
2574 | * a saner message about no samples being in the perf.data file. |
2575 | * | |
2576 | * This also serves to suppress a warning about f_header.data.size == 0 | |
8b99b1a4 JO |
2577 | * in header.c at the moment 'perf stat record' gets introduced, which |
2578 | * is not really needed once we start adding the stat specific PERF_RECORD_ | |
2579 | * records, but the need to suppress the kptr_restrict messages in older | |
2580 | * tools remain -acme | |
4979d0c7 | 2581 | */ |
8ceb41d7 | 2582 | int fd = perf_data__fd(&perf_stat.data); |
fa853c4b SL |
2583 | |
2584 | err = perf_event__synthesize_kernel_mmap((void *)&perf_stat, | |
2585 | process_synthesized_event, | |
2586 | &perf_stat.session->machines.host); | |
4979d0c7 JO |
2587 | if (err) { |
2588 | pr_warning("Couldn't synthesize the kernel mmap record, harmless, " | |
2589 | "older tools may produce warnings about this file\n."); | |
2590 | } | |
2591 | ||
7aad0c32 JO |
2592 | if (!interval) { |
2593 | if (WRITE_STAT_ROUND_EVENT(walltime_nsecs_stats.max, FINAL)) | |
2594 | pr_err("failed to write stat round event\n"); | |
2595 | } | |
2596 | ||
8ceb41d7 | 2597 | if (!perf_stat.data.is_pipe) { |
664c98d4 JO |
2598 | perf_stat.session->header.data_size += perf_stat.bytes_written; |
2599 | perf_session__write_header(perf_stat.session, evsel_list, fd, true); | |
2600 | } | |
4979d0c7 | 2601 | |
750b4ede | 2602 | evlist__close(evsel_list); |
4979d0c7 JO |
2603 | perf_session__delete(perf_stat.session); |
2604 | } | |
2605 | ||
544c2ae7 | 2606 | perf_stat__exit_aggr_mode(); |
53f5e908 | 2607 | evlist__free_stats(evsel_list); |
0015e2e1 | 2608 | out: |
f07952b1 AA |
2609 | if (stat_config.iostat_run) |
2610 | iostat_release(evsel_list); | |
2611 | ||
d8f9da24 | 2612 | zfree(&stat_config.walltime_run); |
e55c14af | 2613 | |
daefd0bc KL |
2614 | if (smi_cost && smi_reset) |
2615 | sysfs__write_int(FREEZE_ON_SMI_PATH, 0); | |
2616 | ||
c12995a5 | 2617 | evlist__delete(evsel_list); |
56739444 | 2618 | |
9afe5658 | 2619 | metricgroup__rblist_exit(&stat_config.metric_events); |
56739444 | 2620 | runtime_stat_delete(&stat_config); |
ee7fe31e | 2621 | evlist__close_control(stat_config.ctl_fd, stat_config.ctl_fd_ack, &stat_config.ctl_fd_close); |
56739444 | 2622 | |
42202dd5 | 2623 | return status; |
ddcacfa0 | 2624 | } |