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Commit | Line | Data |
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ddcacfa0 | 1 | /* |
bf9e1876 IM |
2 | * builtin-stat.c |
3 | * | |
4 | * Builtin stat command: Give a precise performance counters summary | |
5 | * overview about any workload, CPU or specific PID. | |
6 | * | |
7 | * Sample output: | |
ddcacfa0 | 8 | |
2cba3ffb | 9 | $ perf stat ./hackbench 10 |
ddcacfa0 | 10 | |
2cba3ffb | 11 | Time: 0.118 |
ddcacfa0 | 12 | |
2cba3ffb | 13 | Performance counter stats for './hackbench 10': |
ddcacfa0 | 14 | |
2cba3ffb IM |
15 | 1708.761321 task-clock # 11.037 CPUs utilized |
16 | 41,190 context-switches # 0.024 M/sec | |
17 | 6,735 CPU-migrations # 0.004 M/sec | |
18 | 17,318 page-faults # 0.010 M/sec | |
19 | 5,205,202,243 cycles # 3.046 GHz | |
20 | 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle | |
21 | 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle | |
22 | 2,603,501,247 instructions # 0.50 insns per cycle | |
23 | # 1.48 stalled cycles per insn | |
24 | 484,357,498 branches # 283.455 M/sec | |
25 | 6,388,934 branch-misses # 1.32% of all branches | |
26 | ||
27 | 0.154822978 seconds time elapsed | |
ddcacfa0 | 28 | |
5242519b | 29 | * |
2cba3ffb | 30 | * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> |
5242519b IM |
31 | * |
32 | * Improvements and fixes by: | |
33 | * | |
34 | * Arjan van de Ven <arjan@linux.intel.com> | |
35 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
36 | * Wu Fengguang <fengguang.wu@intel.com> | |
37 | * Mike Galbraith <efault@gmx.de> | |
38 | * Paul Mackerras <paulus@samba.org> | |
6e750a8f | 39 | * Jaswinder Singh Rajput <jaswinder@kernel.org> |
5242519b IM |
40 | * |
41 | * Released under the GPL v2. (and only v2, not any later version) | |
ddcacfa0 IM |
42 | */ |
43 | ||
1a482f38 | 44 | #include "perf.h" |
16f762a2 | 45 | #include "builtin.h" |
148be2c1 | 46 | #include "util/util.h" |
5242519b IM |
47 | #include "util/parse-options.h" |
48 | #include "util/parse-events.h" | |
8f28827a | 49 | #include "util/event.h" |
361c99a6 | 50 | #include "util/evlist.h" |
69aad6f1 | 51 | #include "util/evsel.h" |
8f28827a | 52 | #include "util/debug.h" |
a5d243d0 | 53 | #include "util/color.h" |
0007ecea | 54 | #include "util/stat.h" |
60666c63 | 55 | #include "util/header.h" |
a12b51c4 | 56 | #include "util/cpumap.h" |
d6d901c2 | 57 | #include "util/thread.h" |
fd78260b | 58 | #include "util/thread_map.h" |
ddcacfa0 | 59 | |
1f16c575 | 60 | #include <stdlib.h> |
ddcacfa0 | 61 | #include <sys/prctl.h> |
5af52b51 | 62 | #include <locale.h> |
16c8a109 | 63 | |
d7470b6a | 64 | #define DEFAULT_SEPARATOR " " |
2cee77c4 DA |
65 | #define CNTR_NOT_SUPPORTED "<not supported>" |
66 | #define CNTR_NOT_COUNTED "<not counted>" | |
d7470b6a | 67 | |
13370a9b SE |
68 | static void print_stat(int argc, const char **argv); |
69 | static void print_counter_aggr(struct perf_evsel *counter, char *prefix); | |
70 | static void print_counter(struct perf_evsel *counter, char *prefix); | |
71 | ||
666e6d48 | 72 | static struct perf_evlist *evsel_list; |
361c99a6 | 73 | |
77a6f014 NK |
74 | static struct perf_target target = { |
75 | .uid = UINT_MAX, | |
76 | }; | |
ddcacfa0 | 77 | |
3d632595 | 78 | static int run_count = 1; |
2e6cdf99 | 79 | static bool no_inherit = false; |
c0555642 | 80 | static bool scale = true; |
f5b4a9c3 | 81 | static bool no_aggr = false; |
933da83a | 82 | static pid_t child_pid = -1; |
c0555642 | 83 | static bool null_run = false; |
2cba3ffb | 84 | static int detailed_run = 0; |
201e0b06 | 85 | static bool big_num = true; |
d7470b6a | 86 | static int big_num_opt = -1; |
d7470b6a SE |
87 | static const char *csv_sep = NULL; |
88 | static bool csv_output = false; | |
43bece79 | 89 | static bool group = false; |
4aa9015f | 90 | static FILE *output = NULL; |
1f16c575 PZ |
91 | static const char *pre_cmd = NULL; |
92 | static const char *post_cmd = NULL; | |
93 | static bool sync_run = false; | |
13370a9b SE |
94 | static unsigned int interval = 0; |
95 | static struct timespec ref_time; | |
5af52b51 | 96 | |
60666c63 LW |
97 | static volatile int done = 0; |
98 | ||
69aad6f1 ACM |
99 | struct perf_stat { |
100 | struct stats res_stats[3]; | |
69aad6f1 ACM |
101 | }; |
102 | ||
13370a9b SE |
103 | static inline void diff_timespec(struct timespec *r, struct timespec *a, |
104 | struct timespec *b) | |
105 | { | |
106 | r->tv_sec = a->tv_sec - b->tv_sec; | |
107 | if (a->tv_nsec < b->tv_nsec) { | |
108 | r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; | |
109 | r->tv_sec--; | |
110 | } else { | |
111 | r->tv_nsec = a->tv_nsec - b->tv_nsec ; | |
112 | } | |
113 | } | |
114 | ||
115 | static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel) | |
116 | { | |
117 | return (evsel->cpus && !target.cpu_list) ? evsel->cpus : evsel_list->cpus; | |
118 | } | |
119 | ||
120 | static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel) | |
121 | { | |
122 | return perf_evsel__cpus(evsel)->nr; | |
123 | } | |
124 | ||
c52b12ed | 125 | static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) |
69aad6f1 | 126 | { |
c52b12ed | 127 | evsel->priv = zalloc(sizeof(struct perf_stat)); |
69aad6f1 ACM |
128 | return evsel->priv == NULL ? -ENOMEM : 0; |
129 | } | |
130 | ||
131 | static void perf_evsel__free_stat_priv(struct perf_evsel *evsel) | |
132 | { | |
133 | free(evsel->priv); | |
134 | evsel->priv = NULL; | |
135 | } | |
136 | ||
13370a9b | 137 | static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel) |
7ae92e74 | 138 | { |
13370a9b SE |
139 | void *addr; |
140 | size_t sz; | |
141 | ||
142 | sz = sizeof(*evsel->counts) + | |
143 | (perf_evsel__nr_cpus(evsel) * sizeof(struct perf_counts_values)); | |
144 | ||
145 | addr = zalloc(sz); | |
146 | if (!addr) | |
147 | return -ENOMEM; | |
148 | ||
149 | evsel->prev_raw_counts = addr; | |
150 | ||
151 | return 0; | |
7ae92e74 YZ |
152 | } |
153 | ||
13370a9b | 154 | static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel) |
7ae92e74 | 155 | { |
13370a9b SE |
156 | free(evsel->prev_raw_counts); |
157 | evsel->prev_raw_counts = NULL; | |
7ae92e74 YZ |
158 | } |
159 | ||
666e6d48 RR |
160 | static struct stats runtime_nsecs_stats[MAX_NR_CPUS]; |
161 | static struct stats runtime_cycles_stats[MAX_NR_CPUS]; | |
162 | static struct stats runtime_stalled_cycles_front_stats[MAX_NR_CPUS]; | |
163 | static struct stats runtime_stalled_cycles_back_stats[MAX_NR_CPUS]; | |
164 | static struct stats runtime_branches_stats[MAX_NR_CPUS]; | |
165 | static struct stats runtime_cacherefs_stats[MAX_NR_CPUS]; | |
166 | static struct stats runtime_l1_dcache_stats[MAX_NR_CPUS]; | |
167 | static struct stats runtime_l1_icache_stats[MAX_NR_CPUS]; | |
168 | static struct stats runtime_ll_cache_stats[MAX_NR_CPUS]; | |
169 | static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS]; | |
170 | static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS]; | |
171 | static struct stats walltime_nsecs_stats; | |
be1ac0d8 | 172 | |
cac21425 | 173 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
ddcacfa0 | 174 | { |
69aad6f1 | 175 | struct perf_event_attr *attr = &evsel->attr; |
727ab04e | 176 | |
ddcacfa0 | 177 | if (scale) |
a21ca2ca IM |
178 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
179 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
ddcacfa0 | 180 | |
5d2cd909 ACM |
181 | attr->inherit = !no_inherit; |
182 | ||
594ac61a ACM |
183 | if (perf_target__has_cpu(&target)) |
184 | return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); | |
5622c07b | 185 | |
07ac002f | 186 | if (!perf_target__has_task(&target) && |
823254ed | 187 | perf_evsel__is_group_leader(evsel)) { |
48290609 ACM |
188 | attr->disabled = 1; |
189 | attr->enable_on_exec = 1; | |
ddcacfa0 | 190 | } |
084ab9f8 | 191 | |
594ac61a | 192 | return perf_evsel__open_per_thread(evsel, evsel_list->threads); |
ddcacfa0 IM |
193 | } |
194 | ||
c04f5e5d IM |
195 | /* |
196 | * Does the counter have nsecs as a unit? | |
197 | */ | |
daec78a0 | 198 | static inline int nsec_counter(struct perf_evsel *evsel) |
c04f5e5d | 199 | { |
daec78a0 ACM |
200 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
201 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) | |
c04f5e5d IM |
202 | return 1; |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
dcd9936a IM |
207 | /* |
208 | * Update various tracking values we maintain to print | |
209 | * more semantic information such as miss/hit ratios, | |
210 | * instruction rates, etc: | |
211 | */ | |
212 | static void update_shadow_stats(struct perf_evsel *counter, u64 *count) | |
213 | { | |
214 | if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) | |
215 | update_stats(&runtime_nsecs_stats[0], count[0]); | |
216 | else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) | |
217 | update_stats(&runtime_cycles_stats[0], count[0]); | |
d3d1e86d IM |
218 | else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) |
219 | update_stats(&runtime_stalled_cycles_front_stats[0], count[0]); | |
129c04cb | 220 | else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND)) |
d3d1e86d | 221 | update_stats(&runtime_stalled_cycles_back_stats[0], count[0]); |
dcd9936a IM |
222 | else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) |
223 | update_stats(&runtime_branches_stats[0], count[0]); | |
224 | else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) | |
225 | update_stats(&runtime_cacherefs_stats[0], count[0]); | |
8bb6c79f IM |
226 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D)) |
227 | update_stats(&runtime_l1_dcache_stats[0], count[0]); | |
c3305257 IM |
228 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I)) |
229 | update_stats(&runtime_l1_icache_stats[0], count[0]); | |
230 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL)) | |
231 | update_stats(&runtime_ll_cache_stats[0], count[0]); | |
232 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB)) | |
233 | update_stats(&runtime_dtlb_cache_stats[0], count[0]); | |
234 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB)) | |
235 | update_stats(&runtime_itlb_cache_stats[0], count[0]); | |
dcd9936a IM |
236 | } |
237 | ||
c04f5e5d | 238 | /* |
2996f5dd | 239 | * Read out the results of a single counter: |
f5b4a9c3 | 240 | * aggregate counts across CPUs in system-wide mode |
c04f5e5d | 241 | */ |
c52b12ed | 242 | static int read_counter_aggr(struct perf_evsel *counter) |
c04f5e5d | 243 | { |
69aad6f1 | 244 | struct perf_stat *ps = counter->priv; |
c52b12ed ACM |
245 | u64 *count = counter->counts->aggr.values; |
246 | int i; | |
2996f5dd | 247 | |
7ae92e74 | 248 | if (__perf_evsel__read(counter, perf_evsel__nr_cpus(counter), |
7e2ed097 | 249 | evsel_list->threads->nr, scale) < 0) |
c52b12ed | 250 | return -1; |
9e9772c4 PZ |
251 | |
252 | for (i = 0; i < 3; i++) | |
69aad6f1 | 253 | update_stats(&ps->res_stats[i], count[i]); |
9e9772c4 PZ |
254 | |
255 | if (verbose) { | |
4aa9015f | 256 | fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", |
7289f83c | 257 | perf_evsel__name(counter), count[0], count[1], count[2]); |
9e9772c4 PZ |
258 | } |
259 | ||
be1ac0d8 IM |
260 | /* |
261 | * Save the full runtime - to allow normalization during printout: | |
262 | */ | |
dcd9936a | 263 | update_shadow_stats(counter, count); |
c52b12ed ACM |
264 | |
265 | return 0; | |
f5b4a9c3 SE |
266 | } |
267 | ||
268 | /* | |
269 | * Read out the results of a single counter: | |
270 | * do not aggregate counts across CPUs in system-wide mode | |
271 | */ | |
c52b12ed | 272 | static int read_counter(struct perf_evsel *counter) |
f5b4a9c3 | 273 | { |
c52b12ed | 274 | u64 *count; |
f5b4a9c3 | 275 | int cpu; |
f5b4a9c3 | 276 | |
7ae92e74 | 277 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { |
c52b12ed ACM |
278 | if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0) |
279 | return -1; | |
f5b4a9c3 | 280 | |
c52b12ed | 281 | count = counter->counts->cpu[cpu].values; |
f5b4a9c3 | 282 | |
dcd9936a | 283 | update_shadow_stats(counter, count); |
f5b4a9c3 | 284 | } |
c52b12ed ACM |
285 | |
286 | return 0; | |
2996f5dd IM |
287 | } |
288 | ||
13370a9b SE |
289 | static void print_interval(void) |
290 | { | |
291 | static int num_print_interval; | |
292 | struct perf_evsel *counter; | |
293 | struct perf_stat *ps; | |
294 | struct timespec ts, rs; | |
295 | char prefix[64]; | |
296 | ||
297 | if (no_aggr) { | |
298 | list_for_each_entry(counter, &evsel_list->entries, node) { | |
299 | ps = counter->priv; | |
300 | memset(ps->res_stats, 0, sizeof(ps->res_stats)); | |
301 | read_counter(counter); | |
302 | } | |
303 | } else { | |
304 | list_for_each_entry(counter, &evsel_list->entries, node) { | |
305 | ps = counter->priv; | |
306 | memset(ps->res_stats, 0, sizeof(ps->res_stats)); | |
307 | read_counter_aggr(counter); | |
308 | } | |
309 | } | |
310 | clock_gettime(CLOCK_MONOTONIC, &ts); | |
311 | diff_timespec(&rs, &ts, &ref_time); | |
312 | sprintf(prefix, "%6lu.%09lu%s", rs.tv_sec, rs.tv_nsec, csv_sep); | |
313 | ||
314 | if (num_print_interval == 0 && !csv_output) { | |
315 | if (no_aggr) | |
316 | fprintf(output, "# time CPU counts events\n"); | |
317 | else | |
318 | fprintf(output, "# time counts events\n"); | |
319 | } | |
320 | ||
321 | if (++num_print_interval == 25) | |
322 | num_print_interval = 0; | |
323 | ||
324 | if (no_aggr) { | |
325 | list_for_each_entry(counter, &evsel_list->entries, node) | |
326 | print_counter(counter, prefix); | |
327 | } else { | |
328 | list_for_each_entry(counter, &evsel_list->entries, node) | |
329 | print_counter_aggr(counter, prefix); | |
330 | } | |
331 | } | |
332 | ||
1f16c575 | 333 | static int __run_perf_stat(int argc __maybe_unused, const char **argv) |
42202dd5 | 334 | { |
56e52e85 | 335 | char msg[512]; |
42202dd5 | 336 | unsigned long long t0, t1; |
cac21425 | 337 | struct perf_evsel *counter; |
13370a9b | 338 | struct timespec ts; |
42202dd5 | 339 | int status = 0; |
051ae7f7 | 340 | int child_ready_pipe[2], go_pipe[2]; |
6be2850e | 341 | const bool forks = (argc > 0); |
051ae7f7 | 342 | char buf; |
42202dd5 | 343 | |
13370a9b SE |
344 | if (interval) { |
345 | ts.tv_sec = interval / 1000; | |
346 | ts.tv_nsec = (interval % 1000) * 1000000; | |
347 | } else { | |
348 | ts.tv_sec = 1; | |
349 | ts.tv_nsec = 0; | |
350 | } | |
351 | ||
60666c63 | 352 | if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) { |
051ae7f7 | 353 | perror("failed to create pipes"); |
fceda7fe | 354 | return -1; |
051ae7f7 PM |
355 | } |
356 | ||
60666c63 | 357 | if (forks) { |
6be2850e | 358 | if ((child_pid = fork()) < 0) |
60666c63 LW |
359 | perror("failed to fork"); |
360 | ||
6be2850e | 361 | if (!child_pid) { |
60666c63 LW |
362 | close(child_ready_pipe[0]); |
363 | close(go_pipe[1]); | |
364 | fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); | |
365 | ||
366 | /* | |
367 | * Do a dummy execvp to get the PLT entry resolved, | |
368 | * so we avoid the resolver overhead on the real | |
369 | * execvp call. | |
370 | */ | |
371 | execvp("", (char **)argv); | |
372 | ||
373 | /* | |
374 | * Tell the parent we're ready to go | |
375 | */ | |
376 | close(child_ready_pipe[1]); | |
377 | ||
378 | /* | |
379 | * Wait until the parent tells us to go. | |
380 | */ | |
381 | if (read(go_pipe[0], &buf, 1) == -1) | |
382 | perror("unable to read pipe"); | |
383 | ||
384 | execvp(argv[0], (char **)argv); | |
385 | ||
386 | perror(argv[0]); | |
387 | exit(-1); | |
388 | } | |
051ae7f7 | 389 | |
d67356e7 | 390 | if (perf_target__none(&target)) |
7e2ed097 | 391 | evsel_list->threads->map[0] = child_pid; |
d6d901c2 | 392 | |
051ae7f7 | 393 | /* |
60666c63 | 394 | * Wait for the child to be ready to exec. |
051ae7f7 PM |
395 | */ |
396 | close(child_ready_pipe[1]); | |
60666c63 LW |
397 | close(go_pipe[0]); |
398 | if (read(child_ready_pipe[0], &buf, 1) == -1) | |
a92bef0f | 399 | perror("unable to read pipe"); |
60666c63 | 400 | close(child_ready_pipe[0]); |
051ae7f7 PM |
401 | } |
402 | ||
6a4bb04c | 403 | if (group) |
63dab225 | 404 | perf_evlist__set_leader(evsel_list); |
6a4bb04c | 405 | |
361c99a6 | 406 | list_for_each_entry(counter, &evsel_list->entries, node) { |
cac21425 | 407 | if (create_perf_stat_counter(counter) < 0) { |
979987a5 DA |
408 | /* |
409 | * PPC returns ENXIO for HW counters until 2.6.37 | |
410 | * (behavior changed with commit b0a873e). | |
411 | */ | |
38f6ae1e | 412 | if (errno == EINVAL || errno == ENOSYS || |
979987a5 DA |
413 | errno == ENOENT || errno == EOPNOTSUPP || |
414 | errno == ENXIO) { | |
c63ca0c0 DA |
415 | if (verbose) |
416 | ui__warning("%s event is not supported by the kernel.\n", | |
7289f83c | 417 | perf_evsel__name(counter)); |
2cee77c4 | 418 | counter->supported = false; |
ede70290 | 419 | continue; |
c63ca0c0 | 420 | } |
ede70290 | 421 | |
56e52e85 ACM |
422 | perf_evsel__open_strerror(counter, &target, |
423 | errno, msg, sizeof(msg)); | |
424 | ui__error("%s\n", msg); | |
425 | ||
48290609 ACM |
426 | if (child_pid != -1) |
427 | kill(child_pid, SIGTERM); | |
fceda7fe | 428 | |
48290609 ACM |
429 | return -1; |
430 | } | |
2cee77c4 | 431 | counter->supported = true; |
084ab9f8 | 432 | } |
42202dd5 | 433 | |
1491a632 | 434 | if (perf_evlist__apply_filters(evsel_list)) { |
cfd748ae FW |
435 | error("failed to set filter with %d (%s)\n", errno, |
436 | strerror(errno)); | |
437 | return -1; | |
438 | } | |
439 | ||
42202dd5 IM |
440 | /* |
441 | * Enable counters and exec the command: | |
442 | */ | |
443 | t0 = rdclock(); | |
13370a9b | 444 | clock_gettime(CLOCK_MONOTONIC, &ref_time); |
42202dd5 | 445 | |
60666c63 LW |
446 | if (forks) { |
447 | close(go_pipe[1]); | |
13370a9b SE |
448 | if (interval) { |
449 | while (!waitpid(child_pid, &status, WNOHANG)) { | |
450 | nanosleep(&ts, NULL); | |
451 | print_interval(); | |
452 | } | |
453 | } | |
60666c63 | 454 | wait(&status); |
33e49ea7 AK |
455 | if (WIFSIGNALED(status)) |
456 | psignal(WTERMSIG(status), argv[0]); | |
60666c63 | 457 | } else { |
13370a9b SE |
458 | while (!done) { |
459 | nanosleep(&ts, NULL); | |
460 | if (interval) | |
461 | print_interval(); | |
462 | } | |
60666c63 | 463 | } |
42202dd5 | 464 | |
42202dd5 IM |
465 | t1 = rdclock(); |
466 | ||
9e9772c4 | 467 | update_stats(&walltime_nsecs_stats, t1 - t0); |
42202dd5 | 468 | |
f5b4a9c3 | 469 | if (no_aggr) { |
361c99a6 | 470 | list_for_each_entry(counter, &evsel_list->entries, node) { |
f5b4a9c3 | 471 | read_counter(counter); |
7ae92e74 | 472 | perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 1); |
c52b12ed | 473 | } |
f5b4a9c3 | 474 | } else { |
361c99a6 | 475 | list_for_each_entry(counter, &evsel_list->entries, node) { |
f5b4a9c3 | 476 | read_counter_aggr(counter); |
7ae92e74 | 477 | perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), |
7e2ed097 | 478 | evsel_list->threads->nr); |
c52b12ed | 479 | } |
f5b4a9c3 | 480 | } |
c52b12ed | 481 | |
42202dd5 IM |
482 | return WEXITSTATUS(status); |
483 | } | |
484 | ||
1f16c575 PZ |
485 | static int run_perf_stat(int argc __maybe_unused, const char **argv) |
486 | { | |
487 | int ret; | |
488 | ||
489 | if (pre_cmd) { | |
490 | ret = system(pre_cmd); | |
491 | if (ret) | |
492 | return ret; | |
493 | } | |
494 | ||
495 | if (sync_run) | |
496 | sync(); | |
497 | ||
498 | ret = __run_perf_stat(argc, argv); | |
499 | if (ret) | |
500 | return ret; | |
501 | ||
502 | if (post_cmd) { | |
503 | ret = system(post_cmd); | |
504 | if (ret) | |
505 | return ret; | |
506 | } | |
507 | ||
508 | return ret; | |
509 | } | |
510 | ||
f99844cb IM |
511 | static void print_noise_pct(double total, double avg) |
512 | { | |
0007ecea | 513 | double pct = rel_stddev_stats(total, avg); |
f99844cb | 514 | |
3ae9a34d | 515 | if (csv_output) |
4aa9015f | 516 | fprintf(output, "%s%.2f%%", csv_sep, pct); |
a1bca6cc | 517 | else if (pct) |
4aa9015f | 518 | fprintf(output, " ( +-%6.2f%% )", pct); |
f99844cb IM |
519 | } |
520 | ||
69aad6f1 | 521 | static void print_noise(struct perf_evsel *evsel, double avg) |
42202dd5 | 522 | { |
69aad6f1 ACM |
523 | struct perf_stat *ps; |
524 | ||
849abde9 PZ |
525 | if (run_count == 1) |
526 | return; | |
527 | ||
69aad6f1 | 528 | ps = evsel->priv; |
f99844cb | 529 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
42202dd5 IM |
530 | } |
531 | ||
daec78a0 | 532 | static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) |
44175b6f | 533 | { |
506d4bc8 | 534 | double msecs = avg / 1e6; |
d7470b6a | 535 | char cpustr[16] = { '\0', }; |
2cba3ffb | 536 | const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-25s"; |
44175b6f | 537 | |
f5b4a9c3 | 538 | if (no_aggr) |
d7470b6a SE |
539 | sprintf(cpustr, "CPU%*d%s", |
540 | csv_output ? 0 : -4, | |
7ae92e74 | 541 | perf_evsel__cpus(evsel)->map[cpu], csv_sep); |
d7470b6a | 542 | |
7289f83c | 543 | fprintf(output, fmt, cpustr, msecs, csv_sep, perf_evsel__name(evsel)); |
d7470b6a | 544 | |
023695d9 | 545 | if (evsel->cgrp) |
4aa9015f | 546 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); |
023695d9 | 547 | |
13370a9b | 548 | if (csv_output || interval) |
d7470b6a | 549 | return; |
44175b6f | 550 | |
daec78a0 | 551 | if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) |
4aa9015f SE |
552 | fprintf(output, " # %8.3f CPUs utilized ", |
553 | avg / avg_stats(&walltime_nsecs_stats)); | |
9dac6a29 NK |
554 | else |
555 | fprintf(output, " "); | |
44175b6f IM |
556 | } |
557 | ||
15e6392f NK |
558 | /* used for get_ratio_color() */ |
559 | enum grc_type { | |
560 | GRC_STALLED_CYCLES_FE, | |
561 | GRC_STALLED_CYCLES_BE, | |
562 | GRC_CACHE_MISSES, | |
563 | GRC_MAX_NR | |
564 | }; | |
565 | ||
566 | static const char *get_ratio_color(enum grc_type type, double ratio) | |
567 | { | |
568 | static const double grc_table[GRC_MAX_NR][3] = { | |
569 | [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 }, | |
570 | [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 }, | |
571 | [GRC_CACHE_MISSES] = { 20.0, 10.0, 5.0 }, | |
572 | }; | |
573 | const char *color = PERF_COLOR_NORMAL; | |
574 | ||
575 | if (ratio > grc_table[type][0]) | |
576 | color = PERF_COLOR_RED; | |
577 | else if (ratio > grc_table[type][1]) | |
578 | color = PERF_COLOR_MAGENTA; | |
579 | else if (ratio > grc_table[type][2]) | |
580 | color = PERF_COLOR_YELLOW; | |
581 | ||
582 | return color; | |
583 | } | |
584 | ||
1d037ca1 IT |
585 | static void print_stalled_cycles_frontend(int cpu, |
586 | struct perf_evsel *evsel | |
587 | __maybe_unused, double avg) | |
d3d1e86d IM |
588 | { |
589 | double total, ratio = 0.0; | |
590 | const char *color; | |
591 | ||
592 | total = avg_stats(&runtime_cycles_stats[cpu]); | |
593 | ||
594 | if (total) | |
595 | ratio = avg / total * 100.0; | |
596 | ||
15e6392f | 597 | color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio); |
d3d1e86d | 598 | |
4aa9015f SE |
599 | fprintf(output, " # "); |
600 | color_fprintf(output, color, "%6.2f%%", ratio); | |
601 | fprintf(output, " frontend cycles idle "); | |
d3d1e86d IM |
602 | } |
603 | ||
1d037ca1 IT |
604 | static void print_stalled_cycles_backend(int cpu, |
605 | struct perf_evsel *evsel | |
606 | __maybe_unused, double avg) | |
a5d243d0 IM |
607 | { |
608 | double total, ratio = 0.0; | |
609 | const char *color; | |
610 | ||
611 | total = avg_stats(&runtime_cycles_stats[cpu]); | |
612 | ||
613 | if (total) | |
614 | ratio = avg / total * 100.0; | |
615 | ||
15e6392f | 616 | color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio); |
a5d243d0 | 617 | |
4aa9015f SE |
618 | fprintf(output, " # "); |
619 | color_fprintf(output, color, "%6.2f%%", ratio); | |
620 | fprintf(output, " backend cycles idle "); | |
a5d243d0 IM |
621 | } |
622 | ||
1d037ca1 IT |
623 | static void print_branch_misses(int cpu, |
624 | struct perf_evsel *evsel __maybe_unused, | |
625 | double avg) | |
c78df6c1 IM |
626 | { |
627 | double total, ratio = 0.0; | |
628 | const char *color; | |
629 | ||
630 | total = avg_stats(&runtime_branches_stats[cpu]); | |
631 | ||
632 | if (total) | |
633 | ratio = avg / total * 100.0; | |
634 | ||
15e6392f | 635 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
c78df6c1 | 636 | |
4aa9015f SE |
637 | fprintf(output, " # "); |
638 | color_fprintf(output, color, "%6.2f%%", ratio); | |
639 | fprintf(output, " of all branches "); | |
c78df6c1 IM |
640 | } |
641 | ||
1d037ca1 IT |
642 | static void print_l1_dcache_misses(int cpu, |
643 | struct perf_evsel *evsel __maybe_unused, | |
644 | double avg) | |
8bb6c79f IM |
645 | { |
646 | double total, ratio = 0.0; | |
647 | const char *color; | |
648 | ||
649 | total = avg_stats(&runtime_l1_dcache_stats[cpu]); | |
650 | ||
651 | if (total) | |
652 | ratio = avg / total * 100.0; | |
653 | ||
15e6392f | 654 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
8bb6c79f | 655 | |
4aa9015f SE |
656 | fprintf(output, " # "); |
657 | color_fprintf(output, color, "%6.2f%%", ratio); | |
658 | fprintf(output, " of all L1-dcache hits "); | |
8bb6c79f IM |
659 | } |
660 | ||
1d037ca1 IT |
661 | static void print_l1_icache_misses(int cpu, |
662 | struct perf_evsel *evsel __maybe_unused, | |
663 | double avg) | |
c3305257 IM |
664 | { |
665 | double total, ratio = 0.0; | |
666 | const char *color; | |
667 | ||
668 | total = avg_stats(&runtime_l1_icache_stats[cpu]); | |
669 | ||
670 | if (total) | |
671 | ratio = avg / total * 100.0; | |
672 | ||
15e6392f | 673 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
c3305257 | 674 | |
4aa9015f SE |
675 | fprintf(output, " # "); |
676 | color_fprintf(output, color, "%6.2f%%", ratio); | |
677 | fprintf(output, " of all L1-icache hits "); | |
c3305257 IM |
678 | } |
679 | ||
1d037ca1 IT |
680 | static void print_dtlb_cache_misses(int cpu, |
681 | struct perf_evsel *evsel __maybe_unused, | |
682 | double avg) | |
c3305257 IM |
683 | { |
684 | double total, ratio = 0.0; | |
685 | const char *color; | |
686 | ||
687 | total = avg_stats(&runtime_dtlb_cache_stats[cpu]); | |
688 | ||
689 | if (total) | |
690 | ratio = avg / total * 100.0; | |
691 | ||
15e6392f | 692 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
c3305257 | 693 | |
4aa9015f SE |
694 | fprintf(output, " # "); |
695 | color_fprintf(output, color, "%6.2f%%", ratio); | |
696 | fprintf(output, " of all dTLB cache hits "); | |
c3305257 IM |
697 | } |
698 | ||
1d037ca1 IT |
699 | static void print_itlb_cache_misses(int cpu, |
700 | struct perf_evsel *evsel __maybe_unused, | |
701 | double avg) | |
c3305257 IM |
702 | { |
703 | double total, ratio = 0.0; | |
704 | const char *color; | |
705 | ||
706 | total = avg_stats(&runtime_itlb_cache_stats[cpu]); | |
707 | ||
708 | if (total) | |
709 | ratio = avg / total * 100.0; | |
710 | ||
15e6392f | 711 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
c3305257 | 712 | |
4aa9015f SE |
713 | fprintf(output, " # "); |
714 | color_fprintf(output, color, "%6.2f%%", ratio); | |
715 | fprintf(output, " of all iTLB cache hits "); | |
c3305257 IM |
716 | } |
717 | ||
1d037ca1 IT |
718 | static void print_ll_cache_misses(int cpu, |
719 | struct perf_evsel *evsel __maybe_unused, | |
720 | double avg) | |
c3305257 IM |
721 | { |
722 | double total, ratio = 0.0; | |
723 | const char *color; | |
724 | ||
725 | total = avg_stats(&runtime_ll_cache_stats[cpu]); | |
726 | ||
727 | if (total) | |
728 | ratio = avg / total * 100.0; | |
729 | ||
15e6392f | 730 | color = get_ratio_color(GRC_CACHE_MISSES, ratio); |
c3305257 | 731 | |
4aa9015f SE |
732 | fprintf(output, " # "); |
733 | color_fprintf(output, color, "%6.2f%%", ratio); | |
734 | fprintf(output, " of all LL-cache hits "); | |
c3305257 IM |
735 | } |
736 | ||
daec78a0 | 737 | static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) |
44175b6f | 738 | { |
c7f7fea3 | 739 | double total, ratio = 0.0; |
f5b4a9c3 | 740 | char cpustr[16] = { '\0', }; |
d7470b6a SE |
741 | const char *fmt; |
742 | ||
743 | if (csv_output) | |
744 | fmt = "%s%.0f%s%s"; | |
745 | else if (big_num) | |
2cba3ffb | 746 | fmt = "%s%'18.0f%s%-25s"; |
d7470b6a | 747 | else |
2cba3ffb | 748 | fmt = "%s%18.0f%s%-25s"; |
f5b4a9c3 SE |
749 | |
750 | if (no_aggr) | |
d7470b6a SE |
751 | sprintf(cpustr, "CPU%*d%s", |
752 | csv_output ? 0 : -4, | |
7ae92e74 | 753 | perf_evsel__cpus(evsel)->map[cpu], csv_sep); |
f5b4a9c3 SE |
754 | else |
755 | cpu = 0; | |
c7f7fea3 | 756 | |
7289f83c | 757 | fprintf(output, fmt, cpustr, avg, csv_sep, perf_evsel__name(evsel)); |
d7470b6a | 758 | |
023695d9 | 759 | if (evsel->cgrp) |
4aa9015f | 760 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); |
023695d9 | 761 | |
13370a9b | 762 | if (csv_output || interval) |
d7470b6a | 763 | return; |
44175b6f | 764 | |
daec78a0 | 765 | if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) { |
f5b4a9c3 | 766 | total = avg_stats(&runtime_cycles_stats[cpu]); |
c7f7fea3 IM |
767 | if (total) |
768 | ratio = avg / total; | |
769 | ||
4aa9015f | 770 | fprintf(output, " # %5.2f insns per cycle ", ratio); |
481f988a | 771 | |
d3d1e86d IM |
772 | total = avg_stats(&runtime_stalled_cycles_front_stats[cpu]); |
773 | total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[cpu])); | |
481f988a IM |
774 | |
775 | if (total && avg) { | |
776 | ratio = total / avg; | |
4aa9015f | 777 | fprintf(output, "\n # %5.2f stalled cycles per insn", ratio); |
481f988a IM |
778 | } |
779 | ||
daec78a0 | 780 | } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) && |
f5b4a9c3 | 781 | runtime_branches_stats[cpu].n != 0) { |
c78df6c1 | 782 | print_branch_misses(cpu, evsel, avg); |
8bb6c79f IM |
783 | } else if ( |
784 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
785 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D | | |
786 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
787 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
c6264def | 788 | runtime_l1_dcache_stats[cpu].n != 0) { |
8bb6c79f | 789 | print_l1_dcache_misses(cpu, evsel, avg); |
c3305257 IM |
790 | } else if ( |
791 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
792 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1I | | |
793 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
794 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
795 | runtime_l1_icache_stats[cpu].n != 0) { | |
796 | print_l1_icache_misses(cpu, evsel, avg); | |
797 | } else if ( | |
798 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
799 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_DTLB | | |
800 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
801 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
802 | runtime_dtlb_cache_stats[cpu].n != 0) { | |
803 | print_dtlb_cache_misses(cpu, evsel, avg); | |
804 | } else if ( | |
805 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
806 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_ITLB | | |
807 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
808 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
809 | runtime_itlb_cache_stats[cpu].n != 0) { | |
810 | print_itlb_cache_misses(cpu, evsel, avg); | |
811 | } else if ( | |
812 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
813 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_LL | | |
814 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
815 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
816 | runtime_ll_cache_stats[cpu].n != 0) { | |
817 | print_ll_cache_misses(cpu, evsel, avg); | |
d58f4c82 IM |
818 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) && |
819 | runtime_cacherefs_stats[cpu].n != 0) { | |
820 | total = avg_stats(&runtime_cacherefs_stats[cpu]); | |
821 | ||
822 | if (total) | |
823 | ratio = avg * 100 / total; | |
824 | ||
4aa9015f | 825 | fprintf(output, " # %8.3f %% of all cache refs ", ratio); |
d58f4c82 | 826 | |
d3d1e86d IM |
827 | } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) { |
828 | print_stalled_cycles_frontend(cpu, evsel, avg); | |
129c04cb | 829 | } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) { |
d3d1e86d | 830 | print_stalled_cycles_backend(cpu, evsel, avg); |
481f988a | 831 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) { |
f5b4a9c3 | 832 | total = avg_stats(&runtime_nsecs_stats[cpu]); |
c7f7fea3 IM |
833 | |
834 | if (total) | |
481f988a | 835 | ratio = 1.0 * avg / total; |
c7f7fea3 | 836 | |
4aa9015f | 837 | fprintf(output, " # %8.3f GHz ", ratio); |
481f988a | 838 | } else if (runtime_nsecs_stats[cpu].n != 0) { |
5fde2523 NK |
839 | char unit = 'M'; |
840 | ||
481f988a | 841 | total = avg_stats(&runtime_nsecs_stats[cpu]); |
11ba2b85 IM |
842 | |
843 | if (total) | |
481f988a | 844 | ratio = 1000.0 * avg / total; |
5fde2523 NK |
845 | if (ratio < 0.001) { |
846 | ratio *= 1000; | |
847 | unit = 'K'; | |
848 | } | |
11ba2b85 | 849 | |
5fde2523 | 850 | fprintf(output, " # %8.3f %c/sec ", ratio, unit); |
a5d243d0 | 851 | } else { |
4aa9015f | 852 | fprintf(output, " "); |
44175b6f | 853 | } |
44175b6f IM |
854 | } |
855 | ||
2996f5dd IM |
856 | /* |
857 | * Print out the results of a single counter: | |
f5b4a9c3 | 858 | * aggregated counts in system-wide mode |
2996f5dd | 859 | */ |
13370a9b | 860 | static void print_counter_aggr(struct perf_evsel *counter, char *prefix) |
2996f5dd | 861 | { |
69aad6f1 ACM |
862 | struct perf_stat *ps = counter->priv; |
863 | double avg = avg_stats(&ps->res_stats[0]); | |
c52b12ed | 864 | int scaled = counter->counts->scaled; |
2996f5dd | 865 | |
13370a9b SE |
866 | if (prefix) |
867 | fprintf(output, "%s", prefix); | |
868 | ||
2996f5dd | 869 | if (scaled == -1) { |
4aa9015f | 870 | fprintf(output, "%*s%s%*s", |
d7470b6a | 871 | csv_output ? 0 : 18, |
2cee77c4 | 872 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
023695d9 SE |
873 | csv_sep, |
874 | csv_output ? 0 : -24, | |
7289f83c | 875 | perf_evsel__name(counter)); |
023695d9 SE |
876 | |
877 | if (counter->cgrp) | |
4aa9015f | 878 | fprintf(output, "%s%s", csv_sep, counter->cgrp->name); |
023695d9 | 879 | |
4aa9015f | 880 | fputc('\n', output); |
2996f5dd IM |
881 | return; |
882 | } | |
c04f5e5d | 883 | |
44175b6f | 884 | if (nsec_counter(counter)) |
f5b4a9c3 | 885 | nsec_printout(-1, counter, avg); |
44175b6f | 886 | else |
f5b4a9c3 | 887 | abs_printout(-1, counter, avg); |
849abde9 | 888 | |
3ae9a34d ZH |
889 | print_noise(counter, avg); |
890 | ||
d7470b6a | 891 | if (csv_output) { |
4aa9015f | 892 | fputc('\n', output); |
d7470b6a SE |
893 | return; |
894 | } | |
895 | ||
506d4bc8 PZ |
896 | if (scaled) { |
897 | double avg_enabled, avg_running; | |
898 | ||
69aad6f1 ACM |
899 | avg_enabled = avg_stats(&ps->res_stats[1]); |
900 | avg_running = avg_stats(&ps->res_stats[2]); | |
d7c29318 | 901 | |
4aa9015f | 902 | fprintf(output, " [%5.2f%%]", 100 * avg_running / avg_enabled); |
506d4bc8 | 903 | } |
4aa9015f | 904 | fprintf(output, "\n"); |
c04f5e5d IM |
905 | } |
906 | ||
f5b4a9c3 SE |
907 | /* |
908 | * Print out the results of a single counter: | |
909 | * does not use aggregated count in system-wide | |
910 | */ | |
13370a9b | 911 | static void print_counter(struct perf_evsel *counter, char *prefix) |
f5b4a9c3 SE |
912 | { |
913 | u64 ena, run, val; | |
914 | int cpu; | |
915 | ||
7ae92e74 | 916 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { |
c52b12ed ACM |
917 | val = counter->counts->cpu[cpu].val; |
918 | ena = counter->counts->cpu[cpu].ena; | |
919 | run = counter->counts->cpu[cpu].run; | |
13370a9b SE |
920 | |
921 | if (prefix) | |
922 | fprintf(output, "%s", prefix); | |
923 | ||
f5b4a9c3 | 924 | if (run == 0 || ena == 0) { |
4aa9015f | 925 | fprintf(output, "CPU%*d%s%*s%s%*s", |
d7470b6a | 926 | csv_output ? 0 : -4, |
7ae92e74 | 927 | perf_evsel__cpus(counter)->map[cpu], csv_sep, |
d7470b6a | 928 | csv_output ? 0 : 18, |
2cee77c4 DA |
929 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
930 | csv_sep, | |
023695d9 | 931 | csv_output ? 0 : -24, |
7289f83c | 932 | perf_evsel__name(counter)); |
f5b4a9c3 | 933 | |
023695d9 | 934 | if (counter->cgrp) |
4aa9015f SE |
935 | fprintf(output, "%s%s", |
936 | csv_sep, counter->cgrp->name); | |
023695d9 | 937 | |
4aa9015f | 938 | fputc('\n', output); |
f5b4a9c3 SE |
939 | continue; |
940 | } | |
941 | ||
942 | if (nsec_counter(counter)) | |
943 | nsec_printout(cpu, counter, val); | |
944 | else | |
945 | abs_printout(cpu, counter, val); | |
946 | ||
d7470b6a SE |
947 | if (!csv_output) { |
948 | print_noise(counter, 1.0); | |
f5b4a9c3 | 949 | |
c6264def | 950 | if (run != ena) |
4aa9015f SE |
951 | fprintf(output, " (%.2f%%)", |
952 | 100.0 * run / ena); | |
f5b4a9c3 | 953 | } |
4aa9015f | 954 | fputc('\n', output); |
f5b4a9c3 SE |
955 | } |
956 | } | |
957 | ||
42202dd5 IM |
958 | static void print_stat(int argc, const char **argv) |
959 | { | |
69aad6f1 ACM |
960 | struct perf_evsel *counter; |
961 | int i; | |
42202dd5 | 962 | |
ddcacfa0 IM |
963 | fflush(stdout); |
964 | ||
d7470b6a | 965 | if (!csv_output) { |
4aa9015f SE |
966 | fprintf(output, "\n"); |
967 | fprintf(output, " Performance counter stats for "); | |
aa22dd49 | 968 | if (!perf_target__has_task(&target)) { |
4aa9015f | 969 | fprintf(output, "\'%s", argv[0]); |
d7470b6a | 970 | for (i = 1; i < argc; i++) |
4aa9015f | 971 | fprintf(output, " %s", argv[i]); |
20f946b4 NK |
972 | } else if (target.pid) |
973 | fprintf(output, "process id \'%s", target.pid); | |
d7470b6a | 974 | else |
20f946b4 | 975 | fprintf(output, "thread id \'%s", target.tid); |
44db76c8 | 976 | |
4aa9015f | 977 | fprintf(output, "\'"); |
d7470b6a | 978 | if (run_count > 1) |
4aa9015f SE |
979 | fprintf(output, " (%d runs)", run_count); |
980 | fprintf(output, ":\n\n"); | |
d7470b6a | 981 | } |
2996f5dd | 982 | |
f5b4a9c3 | 983 | if (no_aggr) { |
361c99a6 | 984 | list_for_each_entry(counter, &evsel_list->entries, node) |
13370a9b | 985 | print_counter(counter, NULL); |
f5b4a9c3 | 986 | } else { |
361c99a6 | 987 | list_for_each_entry(counter, &evsel_list->entries, node) |
13370a9b | 988 | print_counter_aggr(counter, NULL); |
f5b4a9c3 | 989 | } |
ddcacfa0 | 990 | |
d7470b6a | 991 | if (!csv_output) { |
c3305257 | 992 | if (!null_run) |
4aa9015f SE |
993 | fprintf(output, "\n"); |
994 | fprintf(output, " %17.9f seconds time elapsed", | |
d7470b6a SE |
995 | avg_stats(&walltime_nsecs_stats)/1e9); |
996 | if (run_count > 1) { | |
4aa9015f | 997 | fprintf(output, " "); |
f99844cb IM |
998 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), |
999 | avg_stats(&walltime_nsecs_stats)); | |
d7470b6a | 1000 | } |
4aa9015f | 1001 | fprintf(output, "\n\n"); |
566747e6 | 1002 | } |
ddcacfa0 IM |
1003 | } |
1004 | ||
f7b7c26e PZ |
1005 | static volatile int signr = -1; |
1006 | ||
5242519b | 1007 | static void skip_signal(int signo) |
ddcacfa0 | 1008 | { |
13370a9b | 1009 | if ((child_pid == -1) || interval) |
60666c63 LW |
1010 | done = 1; |
1011 | ||
f7b7c26e PZ |
1012 | signr = signo; |
1013 | } | |
1014 | ||
1015 | static void sig_atexit(void) | |
1016 | { | |
933da83a CW |
1017 | if (child_pid != -1) |
1018 | kill(child_pid, SIGTERM); | |
1019 | ||
f7b7c26e PZ |
1020 | if (signr == -1) |
1021 | return; | |
1022 | ||
1023 | signal(signr, SIG_DFL); | |
1024 | kill(getpid(), signr); | |
5242519b IM |
1025 | } |
1026 | ||
1d037ca1 IT |
1027 | static int stat__set_big_num(const struct option *opt __maybe_unused, |
1028 | const char *s __maybe_unused, int unset) | |
d7470b6a SE |
1029 | { |
1030 | big_num_opt = unset ? 0 : 1; | |
1031 | return 0; | |
1032 | } | |
1033 | ||
2cba3ffb IM |
1034 | /* |
1035 | * Add default attributes, if there were no attributes specified or | |
1036 | * if -d/--detailed, -d -d or -d -d -d is used: | |
1037 | */ | |
1038 | static int add_default_attributes(void) | |
1039 | { | |
b070a547 ACM |
1040 | struct perf_event_attr default_attrs[] = { |
1041 | ||
1042 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1043 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1044 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1045 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
1046 | ||
1047 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
1048 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, | |
1049 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
1050 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, | |
1051 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
1052 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
1053 | ||
1054 | }; | |
1055 | ||
1056 | /* | |
1057 | * Detailed stats (-d), covering the L1 and last level data caches: | |
1058 | */ | |
1059 | struct perf_event_attr detailed_attrs[] = { | |
1060 | ||
1061 | { .type = PERF_TYPE_HW_CACHE, | |
1062 | .config = | |
1063 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1064 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1065 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1066 | ||
1067 | { .type = PERF_TYPE_HW_CACHE, | |
1068 | .config = | |
1069 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1070 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1071 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1072 | ||
1073 | { .type = PERF_TYPE_HW_CACHE, | |
1074 | .config = | |
1075 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1076 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1077 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1078 | ||
1079 | { .type = PERF_TYPE_HW_CACHE, | |
1080 | .config = | |
1081 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1082 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1083 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1084 | }; | |
1085 | ||
1086 | /* | |
1087 | * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: | |
1088 | */ | |
1089 | struct perf_event_attr very_detailed_attrs[] = { | |
1090 | ||
1091 | { .type = PERF_TYPE_HW_CACHE, | |
1092 | .config = | |
1093 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1094 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1095 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1096 | ||
1097 | { .type = PERF_TYPE_HW_CACHE, | |
1098 | .config = | |
1099 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1100 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1101 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1102 | ||
1103 | { .type = PERF_TYPE_HW_CACHE, | |
1104 | .config = | |
1105 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1106 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1107 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1108 | ||
1109 | { .type = PERF_TYPE_HW_CACHE, | |
1110 | .config = | |
1111 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1112 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1113 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1114 | ||
1115 | { .type = PERF_TYPE_HW_CACHE, | |
1116 | .config = | |
1117 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1118 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1119 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1120 | ||
1121 | { .type = PERF_TYPE_HW_CACHE, | |
1122 | .config = | |
1123 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1124 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1125 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1126 | ||
1127 | }; | |
1128 | ||
1129 | /* | |
1130 | * Very, very detailed stats (-d -d -d), adding prefetch events: | |
1131 | */ | |
1132 | struct perf_event_attr very_very_detailed_attrs[] = { | |
1133 | ||
1134 | { .type = PERF_TYPE_HW_CACHE, | |
1135 | .config = | |
1136 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1137 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1138 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1139 | ||
1140 | { .type = PERF_TYPE_HW_CACHE, | |
1141 | .config = | |
1142 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1143 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1144 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1145 | }; | |
1146 | ||
2cba3ffb IM |
1147 | /* Set attrs if no event is selected and !null_run: */ |
1148 | if (null_run) | |
1149 | return 0; | |
1150 | ||
1151 | if (!evsel_list->nr_entries) { | |
79695e1b | 1152 | if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) |
50d08e47 | 1153 | return -1; |
2cba3ffb IM |
1154 | } |
1155 | ||
1156 | /* Detailed events get appended to the event list: */ | |
1157 | ||
1158 | if (detailed_run < 1) | |
1159 | return 0; | |
1160 | ||
1161 | /* Append detailed run extra attributes: */ | |
79695e1b | 1162 | if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) |
50d08e47 | 1163 | return -1; |
2cba3ffb IM |
1164 | |
1165 | if (detailed_run < 2) | |
1166 | return 0; | |
1167 | ||
1168 | /* Append very detailed run extra attributes: */ | |
79695e1b | 1169 | if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) |
50d08e47 | 1170 | return -1; |
2cba3ffb IM |
1171 | |
1172 | if (detailed_run < 3) | |
1173 | return 0; | |
1174 | ||
1175 | /* Append very, very detailed run extra attributes: */ | |
79695e1b | 1176 | return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); |
2cba3ffb IM |
1177 | } |
1178 | ||
1d037ca1 | 1179 | int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) |
5242519b | 1180 | { |
1f16c575 | 1181 | bool append_file = false; |
b070a547 ACM |
1182 | int output_fd = 0; |
1183 | const char *output_name = NULL; | |
1184 | const struct option options[] = { | |
1185 | OPT_CALLBACK('e', "event", &evsel_list, "event", | |
1186 | "event selector. use 'perf list' to list available events", | |
1187 | parse_events_option), | |
1188 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", | |
1189 | "event filter", parse_filter), | |
1190 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, | |
1191 | "child tasks do not inherit counters"), | |
1192 | OPT_STRING('p', "pid", &target.pid, "pid", | |
1193 | "stat events on existing process id"), | |
1194 | OPT_STRING('t', "tid", &target.tid, "tid", | |
1195 | "stat events on existing thread id"), | |
1196 | OPT_BOOLEAN('a', "all-cpus", &target.system_wide, | |
1197 | "system-wide collection from all CPUs"), | |
1198 | OPT_BOOLEAN('g', "group", &group, | |
1199 | "put the counters into a counter group"), | |
1200 | OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"), | |
1201 | OPT_INCR('v', "verbose", &verbose, | |
1202 | "be more verbose (show counter open errors, etc)"), | |
1203 | OPT_INTEGER('r', "repeat", &run_count, | |
1204 | "repeat command and print average + stddev (max: 100)"), | |
1205 | OPT_BOOLEAN('n', "null", &null_run, | |
1206 | "null run - dont start any counters"), | |
1207 | OPT_INCR('d', "detailed", &detailed_run, | |
1208 | "detailed run - start a lot of events"), | |
1209 | OPT_BOOLEAN('S', "sync", &sync_run, | |
1210 | "call sync() before starting a run"), | |
1211 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, | |
1212 | "print large numbers with thousands\' separators", | |
1213 | stat__set_big_num), | |
1214 | OPT_STRING('C', "cpu", &target.cpu_list, "cpu", | |
1215 | "list of cpus to monitor in system-wide"), | |
1216 | OPT_BOOLEAN('A', "no-aggr", &no_aggr, "disable CPU count aggregation"), | |
1217 | OPT_STRING('x', "field-separator", &csv_sep, "separator", | |
1218 | "print counts with custom separator"), | |
1219 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", | |
1220 | "monitor event in cgroup name only", parse_cgroups), | |
1221 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1222 | OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), | |
1223 | OPT_INTEGER(0, "log-fd", &output_fd, | |
1224 | "log output to fd, instead of stderr"), | |
1f16c575 PZ |
1225 | OPT_STRING(0, "pre", &pre_cmd, "command", |
1226 | "command to run prior to the measured command"), | |
1227 | OPT_STRING(0, "post", &post_cmd, "command", | |
1228 | "command to run after to the measured command"), | |
13370a9b SE |
1229 | OPT_UINTEGER('I', "interval-print", &interval, |
1230 | "print counts at regular interval in ms (>= 100)"), | |
b070a547 ACM |
1231 | OPT_END() |
1232 | }; | |
1233 | const char * const stat_usage[] = { | |
1234 | "perf stat [<options>] [<command>]", | |
1235 | NULL | |
1236 | }; | |
69aad6f1 | 1237 | struct perf_evsel *pos; |
b070a547 | 1238 | int status = -ENOMEM, run_idx; |
4aa9015f | 1239 | const char *mode; |
42202dd5 | 1240 | |
5af52b51 SE |
1241 | setlocale(LC_ALL, ""); |
1242 | ||
7e2ed097 | 1243 | evsel_list = perf_evlist__new(NULL, NULL); |
361c99a6 ACM |
1244 | if (evsel_list == NULL) |
1245 | return -ENOMEM; | |
1246 | ||
a0541234 AB |
1247 | argc = parse_options(argc, argv, options, stat_usage, |
1248 | PARSE_OPT_STOP_AT_NON_OPTION); | |
d7470b6a | 1249 | |
4aa9015f SE |
1250 | output = stderr; |
1251 | if (output_name && strcmp(output_name, "-")) | |
1252 | output = NULL; | |
1253 | ||
56f3bae7 JC |
1254 | if (output_name && output_fd) { |
1255 | fprintf(stderr, "cannot use both --output and --log-fd\n"); | |
1256 | usage_with_options(stat_usage, options); | |
1257 | } | |
fc3e4d07 SE |
1258 | |
1259 | if (output_fd < 0) { | |
1260 | fprintf(stderr, "argument to --log-fd must be a > 0\n"); | |
1261 | usage_with_options(stat_usage, options); | |
1262 | } | |
1263 | ||
4aa9015f SE |
1264 | if (!output) { |
1265 | struct timespec tm; | |
1266 | mode = append_file ? "a" : "w"; | |
1267 | ||
1268 | output = fopen(output_name, mode); | |
1269 | if (!output) { | |
1270 | perror("failed to create output file"); | |
fceda7fe | 1271 | return -1; |
4aa9015f SE |
1272 | } |
1273 | clock_gettime(CLOCK_REALTIME, &tm); | |
1274 | fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); | |
fc3e4d07 | 1275 | } else if (output_fd > 0) { |
56f3bae7 JC |
1276 | mode = append_file ? "a" : "w"; |
1277 | output = fdopen(output_fd, mode); | |
1278 | if (!output) { | |
1279 | perror("Failed opening logfd"); | |
1280 | return -errno; | |
1281 | } | |
4aa9015f SE |
1282 | } |
1283 | ||
d4ffd04d | 1284 | if (csv_sep) { |
d7470b6a | 1285 | csv_output = true; |
d4ffd04d JC |
1286 | if (!strcmp(csv_sep, "\\t")) |
1287 | csv_sep = "\t"; | |
1288 | } else | |
d7470b6a SE |
1289 | csv_sep = DEFAULT_SEPARATOR; |
1290 | ||
1291 | /* | |
1292 | * let the spreadsheet do the pretty-printing | |
1293 | */ | |
1294 | if (csv_output) { | |
61a9f324 | 1295 | /* User explicitly passed -B? */ |
d7470b6a SE |
1296 | if (big_num_opt == 1) { |
1297 | fprintf(stderr, "-B option not supported with -x\n"); | |
1298 | usage_with_options(stat_usage, options); | |
1299 | } else /* Nope, so disable big number formatting */ | |
1300 | big_num = false; | |
1301 | } else if (big_num_opt == 0) /* User passed --no-big-num */ | |
1302 | big_num = false; | |
1303 | ||
aa22dd49 | 1304 | if (!argc && !perf_target__has_task(&target)) |
5242519b | 1305 | usage_with_options(stat_usage, options); |
9e9772c4 | 1306 | if (run_count <= 0) |
42202dd5 | 1307 | usage_with_options(stat_usage, options); |
ddcacfa0 | 1308 | |
023695d9 | 1309 | /* no_aggr, cgroup are for system-wide only */ |
aa22dd49 | 1310 | if ((no_aggr || nr_cgroups) && !perf_target__has_cpu(&target)) { |
023695d9 SE |
1311 | fprintf(stderr, "both cgroup and no-aggregation " |
1312 | "modes only available in system-wide mode\n"); | |
1313 | ||
f5b4a9c3 | 1314 | usage_with_options(stat_usage, options); |
023695d9 | 1315 | } |
f5b4a9c3 | 1316 | |
2cba3ffb IM |
1317 | if (add_default_attributes()) |
1318 | goto out; | |
ddcacfa0 | 1319 | |
4bd0f2d2 | 1320 | perf_target__validate(&target); |
5c98d466 | 1321 | |
77a6f014 | 1322 | if (perf_evlist__create_maps(evsel_list, &target) < 0) { |
aa22dd49 | 1323 | if (perf_target__has_task(&target)) |
77a6f014 | 1324 | pr_err("Problems finding threads of monitor\n"); |
aa22dd49 | 1325 | if (perf_target__has_cpu(&target)) |
77a6f014 | 1326 | perror("failed to parse CPUs map"); |
ddcacfa0 | 1327 | |
c45c6ea2 | 1328 | usage_with_options(stat_usage, options); |
60d567e2 ACM |
1329 | return -1; |
1330 | } | |
13370a9b SE |
1331 | if (interval && interval < 100) { |
1332 | pr_err("print interval must be >= 100ms\n"); | |
1333 | usage_with_options(stat_usage, options); | |
1334 | return -1; | |
1335 | } | |
c45c6ea2 | 1336 | |
361c99a6 | 1337 | list_for_each_entry(pos, &evsel_list->entries, node) { |
c52b12ed | 1338 | if (perf_evsel__alloc_stat_priv(pos) < 0 || |
7ae92e74 | 1339 | perf_evsel__alloc_counts(pos, perf_evsel__nr_cpus(pos)) < 0) |
69aad6f1 | 1340 | goto out_free_fd; |
d6d901c2 | 1341 | } |
13370a9b SE |
1342 | if (interval) { |
1343 | list_for_each_entry(pos, &evsel_list->entries, node) { | |
1344 | if (perf_evsel__alloc_prev_raw_counts(pos) < 0) | |
1345 | goto out_free_fd; | |
1346 | } | |
1347 | } | |
d6d901c2 | 1348 | |
58d7e993 IM |
1349 | /* |
1350 | * We dont want to block the signals - that would cause | |
1351 | * child tasks to inherit that and Ctrl-C would not work. | |
1352 | * What we want is for Ctrl-C to work in the exec()-ed | |
1353 | * task, but being ignored by perf stat itself: | |
1354 | */ | |
f7b7c26e | 1355 | atexit(sig_atexit); |
58d7e993 | 1356 | signal(SIGINT, skip_signal); |
13370a9b | 1357 | signal(SIGCHLD, skip_signal); |
58d7e993 IM |
1358 | signal(SIGALRM, skip_signal); |
1359 | signal(SIGABRT, skip_signal); | |
1360 | ||
42202dd5 IM |
1361 | status = 0; |
1362 | for (run_idx = 0; run_idx < run_count; run_idx++) { | |
1363 | if (run_count != 1 && verbose) | |
4aa9015f SE |
1364 | fprintf(output, "[ perf stat: executing run #%d ... ]\n", |
1365 | run_idx + 1); | |
f9cef0a9 | 1366 | |
42202dd5 IM |
1367 | status = run_perf_stat(argc, argv); |
1368 | } | |
1369 | ||
13370a9b | 1370 | if (status != -1 && !interval) |
084ab9f8 | 1371 | print_stat(argc, argv); |
69aad6f1 | 1372 | out_free_fd: |
13370a9b | 1373 | list_for_each_entry(pos, &evsel_list->entries, node) { |
69aad6f1 | 1374 | perf_evsel__free_stat_priv(pos); |
43f8e76e | 1375 | perf_evsel__free_counts(pos); |
13370a9b SE |
1376 | perf_evsel__free_prev_raw_counts(pos); |
1377 | } | |
7e2ed097 | 1378 | perf_evlist__delete_maps(evsel_list); |
0015e2e1 ACM |
1379 | out: |
1380 | perf_evlist__delete(evsel_list); | |
42202dd5 | 1381 | return status; |
ddcacfa0 | 1382 | } |