Commit | Line | Data |
---|---|---|
4e319027 | 1 | #include <traceevent/event-parse.h> |
514f1c67 | 2 | #include "builtin.h" |
752fde44 | 3 | #include "util/color.h" |
514f1c67 | 4 | #include "util/evlist.h" |
752fde44 ACM |
5 | #include "util/machine.h" |
6 | #include "util/thread.h" | |
514f1c67 ACM |
7 | #include "util/parse-options.h" |
8 | #include "util/thread_map.h" | |
514f1c67 ACM |
9 | |
10 | #include <libaudit.h> | |
11 | #include <stdlib.h> | |
12 | ||
13 | static struct syscall_fmt { | |
14 | const char *name; | |
aec1930b | 15 | const char *alias; |
514f1c67 ACM |
16 | bool errmsg; |
17 | bool timeout; | |
18 | } syscall_fmts[] = { | |
8b745263 | 19 | { .name = "access", .errmsg = true, }, |
aec1930b ACM |
20 | { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, |
21 | { .name = "fstat", .errmsg = true, .alias = "newfstat", }, | |
22 | { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, | |
23 | { .name = "futex", .errmsg = true, }, | |
8b745263 | 24 | { .name = "open", .errmsg = true, }, |
aec1930b ACM |
25 | { .name = "poll", .errmsg = true, .timeout = true, }, |
26 | { .name = "ppoll", .errmsg = true, .timeout = true, }, | |
27 | { .name = "read", .errmsg = true, }, | |
28 | { .name = "recvfrom", .errmsg = true, }, | |
29 | { .name = "select", .errmsg = true, .timeout = true, }, | |
8b745263 | 30 | { .name = "socket", .errmsg = true, }, |
aec1930b | 31 | { .name = "stat", .errmsg = true, .alias = "newstat", }, |
514f1c67 ACM |
32 | }; |
33 | ||
34 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
35 | { | |
36 | const struct syscall_fmt *fmt = fmtp; | |
37 | return strcmp(name, fmt->name); | |
38 | } | |
39 | ||
40 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
41 | { | |
42 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
43 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
44 | } | |
45 | ||
46 | struct syscall { | |
47 | struct event_format *tp_format; | |
48 | const char *name; | |
49 | struct syscall_fmt *fmt; | |
50 | }; | |
51 | ||
60c907ab ACM |
52 | static size_t fprintf_duration(unsigned long t, FILE *fp) |
53 | { | |
54 | double duration = (double)t / NSEC_PER_MSEC; | |
55 | size_t printed = fprintf(fp, "("); | |
56 | ||
57 | if (duration >= 1.0) | |
58 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); | |
59 | else if (duration >= 0.01) | |
60 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
61 | else | |
62 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
63 | return printed + fprintf(stdout, "): "); | |
64 | } | |
65 | ||
752fde44 ACM |
66 | struct thread_trace { |
67 | u64 entry_time; | |
68 | u64 exit_time; | |
69 | bool entry_pending; | |
efd5745e | 70 | unsigned long nr_events; |
752fde44 | 71 | char *entry_str; |
1302d88e | 72 | double runtime_ms; |
752fde44 ACM |
73 | }; |
74 | ||
75 | static struct thread_trace *thread_trace__new(void) | |
76 | { | |
77 | return zalloc(sizeof(struct thread_trace)); | |
78 | } | |
79 | ||
80 | static struct thread_trace *thread__trace(struct thread *thread) | |
81 | { | |
efd5745e ACM |
82 | struct thread_trace *ttrace; |
83 | ||
752fde44 ACM |
84 | if (thread == NULL) |
85 | goto fail; | |
86 | ||
87 | if (thread->priv == NULL) | |
88 | thread->priv = thread_trace__new(); | |
efd5745e | 89 | |
752fde44 ACM |
90 | if (thread->priv == NULL) |
91 | goto fail; | |
92 | ||
efd5745e ACM |
93 | ttrace = thread->priv; |
94 | ++ttrace->nr_events; | |
95 | ||
96 | return ttrace; | |
752fde44 ACM |
97 | fail: |
98 | color_fprintf(stdout, PERF_COLOR_RED, | |
99 | "WARNING: not enough memory, dropping samples!\n"); | |
100 | return NULL; | |
101 | } | |
102 | ||
514f1c67 ACM |
103 | struct trace { |
104 | int audit_machine; | |
105 | struct { | |
106 | int max; | |
107 | struct syscall *table; | |
108 | } syscalls; | |
109 | struct perf_record_opts opts; | |
752fde44 ACM |
110 | struct machine host; |
111 | u64 base_time; | |
efd5745e | 112 | unsigned long nr_events; |
1302d88e | 113 | bool sched; |
752fde44 | 114 | bool multiple_threads; |
ae9ed035 | 115 | double duration_filter; |
1302d88e | 116 | double runtime_ms; |
514f1c67 ACM |
117 | }; |
118 | ||
ae9ed035 ACM |
119 | static bool trace__filter_duration(struct trace *trace, double t) |
120 | { | |
121 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
122 | } | |
123 | ||
752fde44 ACM |
124 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
125 | { | |
126 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
127 | ||
60c907ab | 128 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
129 | } |
130 | ||
f15eb531 NK |
131 | static bool done = false; |
132 | ||
133 | static void sig_handler(int sig __maybe_unused) | |
134 | { | |
135 | done = true; | |
136 | } | |
137 | ||
752fde44 | 138 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
60c907ab | 139 | u64 duration, u64 tstamp, FILE *fp) |
752fde44 ACM |
140 | { |
141 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
60c907ab | 142 | printed += fprintf_duration(duration, fp); |
752fde44 ACM |
143 | |
144 | if (trace->multiple_threads) | |
145 | printed += fprintf(fp, "%d ", thread->pid); | |
146 | ||
147 | return printed; | |
148 | } | |
149 | ||
150 | static int trace__process_event(struct machine *machine, union perf_event *event) | |
151 | { | |
152 | int ret = 0; | |
153 | ||
154 | switch (event->header.type) { | |
155 | case PERF_RECORD_LOST: | |
156 | color_fprintf(stdout, PERF_COLOR_RED, | |
157 | "LOST %" PRIu64 " events!\n", event->lost.lost); | |
158 | ret = machine__process_lost_event(machine, event); | |
159 | default: | |
160 | ret = machine__process_event(machine, event); | |
161 | break; | |
162 | } | |
163 | ||
164 | return ret; | |
165 | } | |
166 | ||
167 | static int trace__tool_process(struct perf_tool *tool __maybe_unused, | |
168 | union perf_event *event, | |
169 | struct perf_sample *sample __maybe_unused, | |
170 | struct machine *machine) | |
171 | { | |
172 | return trace__process_event(machine, event); | |
173 | } | |
174 | ||
175 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) | |
176 | { | |
177 | int err = symbol__init(); | |
178 | ||
179 | if (err) | |
180 | return err; | |
181 | ||
182 | machine__init(&trace->host, "", HOST_KERNEL_ID); | |
183 | machine__create_kernel_maps(&trace->host); | |
184 | ||
185 | if (perf_target__has_task(&trace->opts.target)) { | |
186 | err = perf_event__synthesize_thread_map(NULL, evlist->threads, | |
187 | trace__tool_process, | |
188 | &trace->host); | |
189 | } else { | |
190 | err = perf_event__synthesize_threads(NULL, trace__tool_process, | |
191 | &trace->host); | |
192 | } | |
193 | ||
194 | if (err) | |
195 | symbol__exit(); | |
196 | ||
197 | return err; | |
198 | } | |
199 | ||
514f1c67 ACM |
200 | static int trace__read_syscall_info(struct trace *trace, int id) |
201 | { | |
202 | char tp_name[128]; | |
203 | struct syscall *sc; | |
3a531260 ACM |
204 | const char *name = audit_syscall_to_name(id, trace->audit_machine); |
205 | ||
206 | if (name == NULL) | |
207 | return -1; | |
514f1c67 ACM |
208 | |
209 | if (id > trace->syscalls.max) { | |
210 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
211 | ||
212 | if (nsyscalls == NULL) | |
213 | return -1; | |
214 | ||
215 | if (trace->syscalls.max != -1) { | |
216 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
217 | (id - trace->syscalls.max) * sizeof(*sc)); | |
218 | } else { | |
219 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
220 | } | |
221 | ||
222 | trace->syscalls.table = nsyscalls; | |
223 | trace->syscalls.max = id; | |
224 | } | |
225 | ||
226 | sc = trace->syscalls.table + id; | |
3a531260 ACM |
227 | sc->name = name; |
228 | sc->fmt = syscall_fmt__find(sc->name); | |
514f1c67 | 229 | |
aec1930b | 230 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
514f1c67 | 231 | sc->tp_format = event_format__new("syscalls", tp_name); |
aec1930b ACM |
232 | |
233 | if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { | |
234 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); | |
235 | sc->tp_format = event_format__new("syscalls", tp_name); | |
236 | } | |
514f1c67 ACM |
237 | |
238 | return sc->tp_format != NULL ? 0 : -1; | |
239 | } | |
240 | ||
752fde44 ACM |
241 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
242 | unsigned long *args) | |
514f1c67 ACM |
243 | { |
244 | int i = 0; | |
245 | size_t printed = 0; | |
246 | ||
247 | if (sc->tp_format != NULL) { | |
248 | struct format_field *field; | |
249 | ||
250 | for (field = sc->tp_format->format.fields->next; field; field = field->next) { | |
752fde44 ACM |
251 | printed += scnprintf(bf + printed, size - printed, |
252 | "%s%s: %ld", printed ? ", " : "", | |
253 | field->name, args[i++]); | |
514f1c67 ACM |
254 | } |
255 | } else { | |
256 | while (i < 6) { | |
752fde44 ACM |
257 | printed += scnprintf(bf + printed, size - printed, |
258 | "%sarg%d: %ld", | |
259 | printed ? ", " : "", i, args[i]); | |
514f1c67 ACM |
260 | ++i; |
261 | } | |
262 | } | |
263 | ||
264 | return printed; | |
265 | } | |
266 | ||
ba3d7dee ACM |
267 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
268 | struct perf_sample *sample); | |
269 | ||
270 | static struct syscall *trace__syscall_info(struct trace *trace, | |
271 | struct perf_evsel *evsel, | |
272 | struct perf_sample *sample) | |
273 | { | |
274 | int id = perf_evsel__intval(evsel, sample, "id"); | |
275 | ||
276 | if (id < 0) { | |
277 | printf("Invalid syscall %d id, skipping...\n", id); | |
278 | return NULL; | |
279 | } | |
280 | ||
281 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
282 | trace__read_syscall_info(trace, id)) | |
283 | goto out_cant_read; | |
284 | ||
285 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
286 | goto out_cant_read; | |
287 | ||
288 | return &trace->syscalls.table[id]; | |
289 | ||
290 | out_cant_read: | |
814d7a4d ACM |
291 | printf("Problems reading syscall %d", id); |
292 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
293 | printf("(%s)", trace->syscalls.table[id].name); | |
294 | puts(" information"); | |
ba3d7dee ACM |
295 | return NULL; |
296 | } | |
297 | ||
298 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, | |
299 | struct perf_sample *sample) | |
300 | { | |
752fde44 | 301 | char *msg; |
ba3d7dee | 302 | void *args; |
752fde44 ACM |
303 | size_t printed = 0; |
304 | struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); | |
ba3d7dee | 305 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
752fde44 | 306 | struct thread_trace *ttrace = thread__trace(thread); |
ba3d7dee | 307 | |
752fde44 | 308 | if (ttrace == NULL || sc == NULL) |
ba3d7dee ACM |
309 | return -1; |
310 | ||
311 | args = perf_evsel__rawptr(evsel, sample, "args"); | |
312 | if (args == NULL) { | |
313 | printf("Problems reading syscall arguments\n"); | |
314 | return -1; | |
315 | } | |
316 | ||
752fde44 ACM |
317 | ttrace = thread->priv; |
318 | ||
319 | if (ttrace->entry_str == NULL) { | |
320 | ttrace->entry_str = malloc(1024); | |
321 | if (!ttrace->entry_str) | |
322 | return -1; | |
323 | } | |
324 | ||
325 | ttrace->entry_time = sample->time; | |
326 | msg = ttrace->entry_str; | |
327 | printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name); | |
328 | ||
329 | printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, args); | |
330 | ||
331 | if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) { | |
ae9ed035 ACM |
332 | if (!trace->duration_filter) { |
333 | trace__fprintf_entry_head(trace, thread, 1, sample->time, stdout); | |
334 | printf("%-70s\n", ttrace->entry_str); | |
335 | } | |
752fde44 ACM |
336 | } else |
337 | ttrace->entry_pending = true; | |
ba3d7dee ACM |
338 | |
339 | return 0; | |
340 | } | |
341 | ||
342 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, | |
343 | struct perf_sample *sample) | |
344 | { | |
345 | int ret; | |
60c907ab | 346 | u64 duration = 0; |
752fde44 ACM |
347 | struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); |
348 | struct thread_trace *ttrace = thread__trace(thread); | |
ba3d7dee ACM |
349 | struct syscall *sc = trace__syscall_info(trace, evsel, sample); |
350 | ||
752fde44 | 351 | if (ttrace == NULL || sc == NULL) |
ba3d7dee ACM |
352 | return -1; |
353 | ||
354 | ret = perf_evsel__intval(evsel, sample, "ret"); | |
355 | ||
752fde44 ACM |
356 | ttrace = thread->priv; |
357 | ||
358 | ttrace->exit_time = sample->time; | |
359 | ||
ae9ed035 | 360 | if (ttrace->entry_time) { |
60c907ab | 361 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
362 | if (trace__filter_duration(trace, duration)) |
363 | goto out; | |
364 | } else if (trace->duration_filter) | |
365 | goto out; | |
60c907ab ACM |
366 | |
367 | trace__fprintf_entry_head(trace, thread, duration, sample->time, stdout); | |
752fde44 ACM |
368 | |
369 | if (ttrace->entry_pending) { | |
370 | printf("%-70s", ttrace->entry_str); | |
371 | } else { | |
372 | printf(" ... ["); | |
373 | color_fprintf(stdout, PERF_COLOR_YELLOW, "continued"); | |
374 | printf("]: %s()", sc->name); | |
375 | } | |
376 | ||
ba3d7dee ACM |
377 | if (ret < 0 && sc->fmt && sc->fmt->errmsg) { |
378 | char bf[256]; | |
379 | const char *emsg = strerror_r(-ret, bf, sizeof(bf)), | |
380 | *e = audit_errno_to_name(-ret); | |
381 | ||
382 | printf(") = -1 %s %s", e, emsg); | |
383 | } else if (ret == 0 && sc->fmt && sc->fmt->timeout) | |
384 | printf(") = 0 Timeout"); | |
385 | else | |
386 | printf(") = %d", ret); | |
387 | ||
388 | putchar('\n'); | |
ae9ed035 | 389 | out: |
752fde44 ACM |
390 | ttrace->entry_pending = false; |
391 | ||
ba3d7dee ACM |
392 | return 0; |
393 | } | |
394 | ||
1302d88e ACM |
395 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
396 | struct perf_sample *sample) | |
397 | { | |
398 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
399 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
400 | struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); | |
401 | struct thread_trace *ttrace = thread__trace(thread); | |
402 | ||
403 | if (ttrace == NULL) | |
404 | goto out_dump; | |
405 | ||
406 | ttrace->runtime_ms += runtime_ms; | |
407 | trace->runtime_ms += runtime_ms; | |
408 | return 0; | |
409 | ||
410 | out_dump: | |
411 | printf("%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", | |
412 | evsel->name, | |
413 | perf_evsel__strval(evsel, sample, "comm"), | |
414 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
415 | runtime, | |
416 | perf_evsel__intval(evsel, sample, "vruntime")); | |
417 | return 0; | |
418 | } | |
419 | ||
f15eb531 | 420 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 421 | { |
334fe7a3 | 422 | struct perf_evlist *evlist = perf_evlist__new(); |
ba3d7dee | 423 | struct perf_evsel *evsel; |
efd5745e ACM |
424 | int err = -1, i; |
425 | unsigned long before; | |
f15eb531 | 426 | const bool forks = argc > 0; |
514f1c67 ACM |
427 | |
428 | if (evlist == NULL) { | |
429 | printf("Not enough memory to run!\n"); | |
430 | goto out; | |
431 | } | |
432 | ||
39876e7d ACM |
433 | if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) || |
434 | perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit)) { | |
435 | printf("Couldn't read the raw_syscalls tracepoints information!\n"); | |
514f1c67 ACM |
436 | goto out_delete_evlist; |
437 | } | |
438 | ||
1302d88e ACM |
439 | if (trace->sched && |
440 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", | |
441 | trace__sched_stat_runtime)) { | |
442 | printf("Couldn't read the sched_stat_runtime tracepoint information!\n"); | |
443 | goto out_delete_evlist; | |
444 | } | |
445 | ||
514f1c67 ACM |
446 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
447 | if (err < 0) { | |
448 | printf("Problems parsing the target to trace, check your options!\n"); | |
449 | goto out_delete_evlist; | |
450 | } | |
451 | ||
752fde44 ACM |
452 | err = trace__symbols_init(trace, evlist); |
453 | if (err < 0) { | |
454 | printf("Problems initializing symbol libraries!\n"); | |
3beb0861 | 455 | goto out_delete_maps; |
752fde44 ACM |
456 | } |
457 | ||
f77a9518 | 458 | perf_evlist__config(evlist, &trace->opts); |
514f1c67 | 459 | |
f15eb531 NK |
460 | signal(SIGCHLD, sig_handler); |
461 | signal(SIGINT, sig_handler); | |
462 | ||
463 | if (forks) { | |
6ef73ec4 | 464 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
55e162ea | 465 | argv, false, false); |
f15eb531 NK |
466 | if (err < 0) { |
467 | printf("Couldn't run the workload!\n"); | |
3beb0861 | 468 | goto out_delete_maps; |
f15eb531 NK |
469 | } |
470 | } | |
471 | ||
514f1c67 ACM |
472 | err = perf_evlist__open(evlist); |
473 | if (err < 0) { | |
474 | printf("Couldn't create the events: %s\n", strerror(errno)); | |
3beb0861 | 475 | goto out_delete_maps; |
514f1c67 ACM |
476 | } |
477 | ||
478 | err = perf_evlist__mmap(evlist, UINT_MAX, false); | |
479 | if (err < 0) { | |
480 | printf("Couldn't mmap the events: %s\n", strerror(errno)); | |
3beb0861 | 481 | goto out_close_evlist; |
514f1c67 ACM |
482 | } |
483 | ||
484 | perf_evlist__enable(evlist); | |
f15eb531 NK |
485 | |
486 | if (forks) | |
487 | perf_evlist__start_workload(evlist); | |
488 | ||
752fde44 | 489 | trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1; |
514f1c67 | 490 | again: |
efd5745e | 491 | before = trace->nr_events; |
514f1c67 ACM |
492 | |
493 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
494 | union perf_event *event; | |
495 | ||
496 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
497 | const u32 type = event->header.type; | |
ba3d7dee | 498 | tracepoint_handler handler; |
514f1c67 | 499 | struct perf_sample sample; |
514f1c67 | 500 | |
efd5745e | 501 | ++trace->nr_events; |
514f1c67 | 502 | |
514f1c67 ACM |
503 | err = perf_evlist__parse_sample(evlist, event, &sample); |
504 | if (err) { | |
505 | printf("Can't parse sample, err = %d, skipping...\n", err); | |
506 | continue; | |
507 | } | |
508 | ||
752fde44 ACM |
509 | if (trace->base_time == 0) |
510 | trace->base_time = sample.time; | |
511 | ||
512 | if (type != PERF_RECORD_SAMPLE) { | |
513 | trace__process_event(&trace->host, event); | |
514 | continue; | |
515 | } | |
516 | ||
514f1c67 ACM |
517 | evsel = perf_evlist__id2evsel(evlist, sample.id); |
518 | if (evsel == NULL) { | |
519 | printf("Unknown tp ID %" PRIu64 ", skipping...\n", sample.id); | |
520 | continue; | |
521 | } | |
522 | ||
fc551f8d ACM |
523 | if (sample.raw_data == NULL) { |
524 | printf("%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
525 | perf_evsel__name(evsel), sample.tid, | |
526 | sample.cpu, sample.raw_size); | |
527 | continue; | |
528 | } | |
529 | ||
ba3d7dee ACM |
530 | handler = evsel->handler.func; |
531 | handler(trace, evsel, &sample); | |
514f1c67 ACM |
532 | } |
533 | } | |
534 | ||
efd5745e | 535 | if (trace->nr_events == before) { |
f15eb531 | 536 | if (done) |
3beb0861 | 537 | goto out_unmap_evlist; |
f15eb531 | 538 | |
514f1c67 | 539 | poll(evlist->pollfd, evlist->nr_fds, -1); |
f15eb531 NK |
540 | } |
541 | ||
542 | if (done) | |
543 | perf_evlist__disable(evlist); | |
514f1c67 ACM |
544 | |
545 | goto again; | |
546 | ||
3beb0861 NK |
547 | out_unmap_evlist: |
548 | perf_evlist__munmap(evlist); | |
549 | out_close_evlist: | |
550 | perf_evlist__close(evlist); | |
551 | out_delete_maps: | |
552 | perf_evlist__delete_maps(evlist); | |
514f1c67 ACM |
553 | out_delete_evlist: |
554 | perf_evlist__delete(evlist); | |
555 | out: | |
556 | return err; | |
557 | } | |
558 | ||
1302d88e ACM |
559 | static size_t trace__fprintf_threads_header(FILE *fp) |
560 | { | |
561 | size_t printed; | |
562 | ||
563 | printed = fprintf(fp, "\n _____________________________________________________________________\n"); | |
564 | printed += fprintf(fp," __) Summary of events (__\n\n"); | |
565 | printed += fprintf(fp," [ task - pid ] [ events ] [ ratio ] [ runtime ]\n"); | |
566 | printed += fprintf(fp," _____________________________________________________________________\n\n"); | |
567 | ||
568 | return printed; | |
569 | } | |
570 | ||
571 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) | |
572 | { | |
573 | size_t printed = trace__fprintf_threads_header(fp); | |
574 | struct rb_node *nd; | |
575 | ||
576 | for (nd = rb_first(&trace->host.threads); nd; nd = rb_next(nd)) { | |
577 | struct thread *thread = rb_entry(nd, struct thread, rb_node); | |
578 | struct thread_trace *ttrace = thread->priv; | |
579 | const char *color; | |
580 | double ratio; | |
581 | ||
582 | if (ttrace == NULL) | |
583 | continue; | |
584 | ||
585 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
586 | ||
587 | color = PERF_COLOR_NORMAL; | |
588 | if (ratio > 50.0) | |
589 | color = PERF_COLOR_RED; | |
590 | else if (ratio > 25.0) | |
591 | color = PERF_COLOR_GREEN; | |
592 | else if (ratio > 5.0) | |
593 | color = PERF_COLOR_YELLOW; | |
594 | ||
595 | printed += color_fprintf(fp, color, "%20s", thread->comm); | |
596 | printed += fprintf(fp, " - %-5d :%11lu [", thread->pid, ttrace->nr_events); | |
597 | printed += color_fprintf(fp, color, "%5.1f%%", ratio); | |
598 | printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms); | |
599 | } | |
600 | ||
601 | return printed; | |
602 | } | |
603 | ||
ae9ed035 ACM |
604 | static int trace__set_duration(const struct option *opt, const char *str, |
605 | int unset __maybe_unused) | |
606 | { | |
607 | struct trace *trace = opt->value; | |
608 | ||
609 | trace->duration_filter = atof(str); | |
610 | return 0; | |
611 | } | |
612 | ||
514f1c67 ACM |
613 | int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) |
614 | { | |
615 | const char * const trace_usage[] = { | |
f15eb531 NK |
616 | "perf trace [<options>] [<command>]", |
617 | "perf trace [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
618 | NULL |
619 | }; | |
620 | struct trace trace = { | |
621 | .audit_machine = audit_detect_machine(), | |
622 | .syscalls = { | |
623 | . max = -1, | |
624 | }, | |
625 | .opts = { | |
626 | .target = { | |
627 | .uid = UINT_MAX, | |
628 | .uses_mmap = true, | |
629 | }, | |
630 | .user_freq = UINT_MAX, | |
631 | .user_interval = ULLONG_MAX, | |
632 | .no_delay = true, | |
633 | .mmap_pages = 1024, | |
634 | }, | |
635 | }; | |
636 | const struct option trace_options[] = { | |
637 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", | |
638 | "trace events on existing process id"), | |
639 | OPT_STRING(0, "tid", &trace.opts.target.tid, "tid", | |
640 | "trace events on existing thread id"), | |
641 | OPT_BOOLEAN(0, "all-cpus", &trace.opts.target.system_wide, | |
642 | "system-wide collection from all CPUs"), | |
643 | OPT_STRING(0, "cpu", &trace.opts.target.cpu_list, "cpu", | |
644 | "list of cpus to monitor"), | |
645 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, | |
646 | "child tasks do not inherit counters"), | |
647 | OPT_UINTEGER(0, "mmap-pages", &trace.opts.mmap_pages, | |
648 | "number of mmap data pages"), | |
649 | OPT_STRING(0, "uid", &trace.opts.target.uid_str, "user", | |
650 | "user to profile"), | |
ae9ed035 ACM |
651 | OPT_CALLBACK(0, "duration", &trace, "float", |
652 | "show only events with duration > N.M ms", | |
653 | trace__set_duration), | |
1302d88e | 654 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
514f1c67 ACM |
655 | OPT_END() |
656 | }; | |
657 | int err; | |
32caf0d1 | 658 | char bf[BUFSIZ]; |
514f1c67 ACM |
659 | |
660 | argc = parse_options(argc, argv, trace_options, trace_usage, 0); | |
514f1c67 | 661 | |
32caf0d1 NK |
662 | err = perf_target__validate(&trace.opts.target); |
663 | if (err) { | |
664 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); | |
665 | printf("%s", bf); | |
666 | return err; | |
667 | } | |
668 | ||
514f1c67 ACM |
669 | err = perf_target__parse_uid(&trace.opts.target); |
670 | if (err) { | |
514f1c67 ACM |
671 | perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
672 | printf("%s", bf); | |
673 | return err; | |
674 | } | |
675 | ||
f15eb531 | 676 | if (!argc && perf_target__none(&trace.opts.target)) |
ee76120e NK |
677 | trace.opts.target.system_wide = true; |
678 | ||
1302d88e ACM |
679 | err = trace__run(&trace, argc, argv); |
680 | ||
681 | if (trace.sched && !err) | |
682 | trace__fprintf_thread_summary(&trace, stdout); | |
683 | ||
684 | return err; | |
514f1c67 | 685 | } |