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