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10274989 AV |
1 | /* |
2 | * builtin-timechart.c - make an svg timechart of system activity | |
3 | * | |
4 | * (C) Copyright 2009 Intel Corporation | |
5 | * | |
6 | * Authors: | |
7 | * Arjan van de Ven <arjan@linux.intel.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; version 2 | |
12 | * of the License. | |
13 | */ | |
14 | ||
c85cffa5 JO |
15 | #include <traceevent/event-parse.h> |
16 | ||
10274989 AV |
17 | #include "builtin.h" |
18 | ||
19 | #include "util/util.h" | |
20 | ||
21 | #include "util/color.h" | |
22 | #include <linux/list.h> | |
23 | #include "util/cache.h" | |
5936678e | 24 | #include "util/evlist.h" |
e3f42609 | 25 | #include "util/evsel.h" |
10274989 AV |
26 | #include <linux/rbtree.h> |
27 | #include "util/symbol.h" | |
10274989 AV |
28 | #include "util/callchain.h" |
29 | #include "util/strlist.h" | |
30 | ||
31 | #include "perf.h" | |
32 | #include "util/header.h" | |
33 | #include "util/parse-options.h" | |
34 | #include "util/parse-events.h" | |
5cbd0805 | 35 | #include "util/event.h" |
301a0b02 | 36 | #include "util/session.h" |
10274989 | 37 | #include "util/svghelper.h" |
45694aa7 | 38 | #include "util/tool.h" |
10274989 | 39 | |
20c457b8 TR |
40 | #define SUPPORT_OLD_POWER_EVENTS 1 |
41 | #define PWR_EVENT_EXIT -1 | |
42 | ||
43 | ||
10274989 AV |
44 | static unsigned int numcpus; |
45 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
46 | static u64 max_freq; /* Highest CPU frequency seen */ | |
47 | static u64 turbo_frequency; | |
48 | ||
49 | static u64 first_time, last_time; | |
50 | ||
c0555642 | 51 | static bool power_only; |
39a90a8e | 52 | |
10274989 | 53 | |
10274989 AV |
54 | struct per_pid; |
55 | struct per_pidcomm; | |
56 | ||
57 | struct cpu_sample; | |
58 | struct power_event; | |
59 | struct wake_event; | |
60 | ||
61 | struct sample_wrapper; | |
62 | ||
63 | /* | |
64 | * Datastructure layout: | |
65 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
66 | * Each "pid" entry, has a list of "comm"s. | |
67 | * this is because we want to track different programs different, while | |
68 | * exec will reuse the original pid (by design). | |
69 | * Each comm has a list of samples that will be used to draw | |
70 | * final graph. | |
71 | */ | |
72 | ||
73 | struct per_pid { | |
74 | struct per_pid *next; | |
75 | ||
76 | int pid; | |
77 | int ppid; | |
78 | ||
79 | u64 start_time; | |
80 | u64 end_time; | |
81 | u64 total_time; | |
82 | int display; | |
83 | ||
84 | struct per_pidcomm *all; | |
85 | struct per_pidcomm *current; | |
10274989 AV |
86 | }; |
87 | ||
88 | ||
89 | struct per_pidcomm { | |
90 | struct per_pidcomm *next; | |
91 | ||
92 | u64 start_time; | |
93 | u64 end_time; | |
94 | u64 total_time; | |
95 | ||
96 | int Y; | |
97 | int display; | |
98 | ||
99 | long state; | |
100 | u64 state_since; | |
101 | ||
102 | char *comm; | |
103 | ||
104 | struct cpu_sample *samples; | |
105 | }; | |
106 | ||
107 | struct sample_wrapper { | |
108 | struct sample_wrapper *next; | |
109 | ||
110 | u64 timestamp; | |
111 | unsigned char data[0]; | |
112 | }; | |
113 | ||
114 | #define TYPE_NONE 0 | |
115 | #define TYPE_RUNNING 1 | |
116 | #define TYPE_WAITING 2 | |
117 | #define TYPE_BLOCKED 3 | |
118 | ||
119 | struct cpu_sample { | |
120 | struct cpu_sample *next; | |
121 | ||
122 | u64 start_time; | |
123 | u64 end_time; | |
124 | int type; | |
125 | int cpu; | |
126 | }; | |
127 | ||
128 | static struct per_pid *all_data; | |
129 | ||
130 | #define CSTATE 1 | |
131 | #define PSTATE 2 | |
132 | ||
133 | struct power_event { | |
134 | struct power_event *next; | |
135 | int type; | |
136 | int state; | |
137 | u64 start_time; | |
138 | u64 end_time; | |
139 | int cpu; | |
140 | }; | |
141 | ||
142 | struct wake_event { | |
143 | struct wake_event *next; | |
144 | int waker; | |
145 | int wakee; | |
146 | u64 time; | |
147 | }; | |
148 | ||
149 | static struct power_event *power_events; | |
150 | static struct wake_event *wake_events; | |
151 | ||
bbe2987b AV |
152 | struct process_filter; |
153 | struct process_filter { | |
5cbd0805 LZ |
154 | char *name; |
155 | int pid; | |
156 | struct process_filter *next; | |
bbe2987b AV |
157 | }; |
158 | ||
159 | static struct process_filter *process_filter; | |
160 | ||
161 | ||
10274989 AV |
162 | static struct per_pid *find_create_pid(int pid) |
163 | { | |
164 | struct per_pid *cursor = all_data; | |
165 | ||
166 | while (cursor) { | |
167 | if (cursor->pid == pid) | |
168 | return cursor; | |
169 | cursor = cursor->next; | |
170 | } | |
e0dcd6fb | 171 | cursor = zalloc(sizeof(*cursor)); |
10274989 | 172 | assert(cursor != NULL); |
10274989 AV |
173 | cursor->pid = pid; |
174 | cursor->next = all_data; | |
175 | all_data = cursor; | |
176 | return cursor; | |
177 | } | |
178 | ||
179 | static void pid_set_comm(int pid, char *comm) | |
180 | { | |
181 | struct per_pid *p; | |
182 | struct per_pidcomm *c; | |
183 | p = find_create_pid(pid); | |
184 | c = p->all; | |
185 | while (c) { | |
186 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
187 | p->current = c; | |
188 | return; | |
189 | } | |
190 | if (!c->comm) { | |
191 | c->comm = strdup(comm); | |
192 | p->current = c; | |
193 | return; | |
194 | } | |
195 | c = c->next; | |
196 | } | |
e0dcd6fb | 197 | c = zalloc(sizeof(*c)); |
10274989 | 198 | assert(c != NULL); |
10274989 AV |
199 | c->comm = strdup(comm); |
200 | p->current = c; | |
201 | c->next = p->all; | |
202 | p->all = c; | |
203 | } | |
204 | ||
205 | static void pid_fork(int pid, int ppid, u64 timestamp) | |
206 | { | |
207 | struct per_pid *p, *pp; | |
208 | p = find_create_pid(pid); | |
209 | pp = find_create_pid(ppid); | |
210 | p->ppid = ppid; | |
211 | if (pp->current && pp->current->comm && !p->current) | |
212 | pid_set_comm(pid, pp->current->comm); | |
213 | ||
214 | p->start_time = timestamp; | |
215 | if (p->current) { | |
216 | p->current->start_time = timestamp; | |
217 | p->current->state_since = timestamp; | |
218 | } | |
219 | } | |
220 | ||
221 | static void pid_exit(int pid, u64 timestamp) | |
222 | { | |
223 | struct per_pid *p; | |
224 | p = find_create_pid(pid); | |
225 | p->end_time = timestamp; | |
226 | if (p->current) | |
227 | p->current->end_time = timestamp; | |
228 | } | |
229 | ||
230 | static void | |
231 | pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end) | |
232 | { | |
233 | struct per_pid *p; | |
234 | struct per_pidcomm *c; | |
235 | struct cpu_sample *sample; | |
236 | ||
237 | p = find_create_pid(pid); | |
238 | c = p->current; | |
239 | if (!c) { | |
e0dcd6fb | 240 | c = zalloc(sizeof(*c)); |
10274989 | 241 | assert(c != NULL); |
10274989 AV |
242 | p->current = c; |
243 | c->next = p->all; | |
244 | p->all = c; | |
245 | } | |
246 | ||
e0dcd6fb | 247 | sample = zalloc(sizeof(*sample)); |
10274989 | 248 | assert(sample != NULL); |
10274989 AV |
249 | sample->start_time = start; |
250 | sample->end_time = end; | |
251 | sample->type = type; | |
252 | sample->next = c->samples; | |
253 | sample->cpu = cpu; | |
254 | c->samples = sample; | |
255 | ||
256 | if (sample->type == TYPE_RUNNING && end > start && start > 0) { | |
257 | c->total_time += (end-start); | |
258 | p->total_time += (end-start); | |
259 | } | |
260 | ||
261 | if (c->start_time == 0 || c->start_time > start) | |
262 | c->start_time = start; | |
263 | if (p->start_time == 0 || p->start_time > start) | |
264 | p->start_time = start; | |
10274989 AV |
265 | } |
266 | ||
267 | #define MAX_CPUS 4096 | |
268 | ||
269 | static u64 cpus_cstate_start_times[MAX_CPUS]; | |
270 | static int cpus_cstate_state[MAX_CPUS]; | |
271 | static u64 cpus_pstate_start_times[MAX_CPUS]; | |
272 | static u64 cpus_pstate_state[MAX_CPUS]; | |
273 | ||
1d037ca1 | 274 | static int process_comm_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 275 | union perf_event *event, |
1d037ca1 IT |
276 | struct perf_sample *sample __maybe_unused, |
277 | struct machine *machine __maybe_unused) | |
10274989 | 278 | { |
8f06d7e6 | 279 | pid_set_comm(event->comm.tid, event->comm.comm); |
10274989 AV |
280 | return 0; |
281 | } | |
d8f66248 | 282 | |
1d037ca1 | 283 | static int process_fork_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 284 | union perf_event *event, |
1d037ca1 IT |
285 | struct perf_sample *sample __maybe_unused, |
286 | struct machine *machine __maybe_unused) | |
10274989 AV |
287 | { |
288 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
289 | return 0; | |
290 | } | |
291 | ||
1d037ca1 | 292 | static int process_exit_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 293 | union perf_event *event, |
1d037ca1 IT |
294 | struct perf_sample *sample __maybe_unused, |
295 | struct machine *machine __maybe_unused) | |
10274989 AV |
296 | { |
297 | pid_exit(event->fork.pid, event->fork.time); | |
298 | return 0; | |
299 | } | |
300 | ||
301 | struct trace_entry { | |
10274989 AV |
302 | unsigned short type; |
303 | unsigned char flags; | |
304 | unsigned char preempt_count; | |
305 | int pid; | |
028c5152 | 306 | int lock_depth; |
10274989 AV |
307 | }; |
308 | ||
20c457b8 TR |
309 | #ifdef SUPPORT_OLD_POWER_EVENTS |
310 | static int use_old_power_events; | |
311 | struct power_entry_old { | |
10274989 | 312 | struct trace_entry te; |
4c21adf2 TR |
313 | u64 type; |
314 | u64 value; | |
315 | u64 cpu_id; | |
10274989 | 316 | }; |
20c457b8 TR |
317 | #endif |
318 | ||
319 | struct power_processor_entry { | |
320 | struct trace_entry te; | |
321 | u32 state; | |
322 | u32 cpu_id; | |
323 | }; | |
10274989 AV |
324 | |
325 | #define TASK_COMM_LEN 16 | |
326 | struct wakeup_entry { | |
327 | struct trace_entry te; | |
328 | char comm[TASK_COMM_LEN]; | |
329 | int pid; | |
330 | int prio; | |
331 | int success; | |
332 | }; | |
333 | ||
10274989 AV |
334 | struct sched_switch { |
335 | struct trace_entry te; | |
336 | char prev_comm[TASK_COMM_LEN]; | |
337 | int prev_pid; | |
338 | int prev_prio; | |
339 | long prev_state; /* Arjan weeps. */ | |
340 | char next_comm[TASK_COMM_LEN]; | |
341 | int next_pid; | |
342 | int next_prio; | |
343 | }; | |
344 | ||
345 | static void c_state_start(int cpu, u64 timestamp, int state) | |
346 | { | |
347 | cpus_cstate_start_times[cpu] = timestamp; | |
348 | cpus_cstate_state[cpu] = state; | |
349 | } | |
350 | ||
351 | static void c_state_end(int cpu, u64 timestamp) | |
352 | { | |
e0dcd6fb ACM |
353 | struct power_event *pwr = zalloc(sizeof(*pwr)); |
354 | ||
10274989 AV |
355 | if (!pwr) |
356 | return; | |
10274989 AV |
357 | |
358 | pwr->state = cpus_cstate_state[cpu]; | |
359 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
360 | pwr->end_time = timestamp; | |
361 | pwr->cpu = cpu; | |
362 | pwr->type = CSTATE; | |
363 | pwr->next = power_events; | |
364 | ||
365 | power_events = pwr; | |
366 | } | |
367 | ||
368 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
369 | { | |
370 | struct power_event *pwr; | |
10274989 AV |
371 | |
372 | if (new_freq > 8000000) /* detect invalid data */ | |
373 | return; | |
374 | ||
e0dcd6fb | 375 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
376 | if (!pwr) |
377 | return; | |
10274989 AV |
378 | |
379 | pwr->state = cpus_pstate_state[cpu]; | |
380 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
381 | pwr->end_time = timestamp; | |
382 | pwr->cpu = cpu; | |
383 | pwr->type = PSTATE; | |
384 | pwr->next = power_events; | |
385 | ||
386 | if (!pwr->start_time) | |
387 | pwr->start_time = first_time; | |
388 | ||
389 | power_events = pwr; | |
390 | ||
391 | cpus_pstate_state[cpu] = new_freq; | |
392 | cpus_pstate_start_times[cpu] = timestamp; | |
393 | ||
394 | if ((u64)new_freq > max_freq) | |
395 | max_freq = new_freq; | |
396 | ||
397 | if (new_freq < min_freq || min_freq == 0) | |
398 | min_freq = new_freq; | |
399 | ||
400 | if (new_freq == max_freq - 1000) | |
401 | turbo_frequency = max_freq; | |
402 | } | |
403 | ||
404 | static void | |
405 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
406 | { | |
10274989 AV |
407 | struct per_pid *p; |
408 | struct wakeup_entry *wake = (void *)te; | |
e0dcd6fb | 409 | struct wake_event *we = zalloc(sizeof(*we)); |
10274989 | 410 | |
10274989 AV |
411 | if (!we) |
412 | return; | |
413 | ||
10274989 AV |
414 | we->time = timestamp; |
415 | we->waker = pid; | |
416 | ||
417 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
418 | we->waker = -1; | |
419 | ||
420 | we->wakee = wake->pid; | |
421 | we->next = wake_events; | |
422 | wake_events = we; | |
423 | p = find_create_pid(we->wakee); | |
424 | ||
425 | if (p && p->current && p->current->state == TYPE_NONE) { | |
426 | p->current->state_since = timestamp; | |
427 | p->current->state = TYPE_WAITING; | |
428 | } | |
429 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
430 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
431 | p->current->state_since = timestamp; | |
432 | p->current->state = TYPE_WAITING; | |
433 | } | |
434 | } | |
435 | ||
436 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
437 | { | |
438 | struct per_pid *p = NULL, *prev_p; | |
439 | struct sched_switch *sw = (void *)te; | |
440 | ||
441 | ||
442 | prev_p = find_create_pid(sw->prev_pid); | |
443 | ||
444 | p = find_create_pid(sw->next_pid); | |
445 | ||
446 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
447 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
448 | if (p && p->current) { | |
449 | if (p->current->state != TYPE_NONE) | |
450 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
451 | ||
33e26a1b JL |
452 | p->current->state_since = timestamp; |
453 | p->current->state = TYPE_RUNNING; | |
10274989 AV |
454 | } |
455 | ||
456 | if (prev_p->current) { | |
457 | prev_p->current->state = TYPE_NONE; | |
458 | prev_p->current->state_since = timestamp; | |
459 | if (sw->prev_state & 2) | |
460 | prev_p->current->state = TYPE_BLOCKED; | |
461 | if (sw->prev_state == 0) | |
462 | prev_p->current->state = TYPE_WAITING; | |
463 | } | |
464 | } | |
465 | ||
5936678e JO |
466 | typedef int (*tracepoint_handler)(struct perf_evsel *evsel, |
467 | struct perf_sample *sample); | |
10274989 | 468 | |
1d037ca1 IT |
469 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
470 | union perf_event *event __maybe_unused, | |
8d50e5b4 | 471 | struct perf_sample *sample, |
e3f42609 | 472 | struct perf_evsel *evsel, |
1d037ca1 | 473 | struct machine *machine __maybe_unused) |
10274989 | 474 | { |
e3f42609 | 475 | if (evsel->attr.sample_type & PERF_SAMPLE_TIME) { |
640c03ce ACM |
476 | if (!first_time || first_time > sample->time) |
477 | first_time = sample->time; | |
478 | if (last_time < sample->time) | |
479 | last_time = sample->time; | |
10274989 | 480 | } |
180f95e2 | 481 | |
5936678e JO |
482 | if (sample->cpu > numcpus) |
483 | numcpus = sample->cpu; | |
484 | ||
485 | if (evsel->handler.func != NULL) { | |
486 | tracepoint_handler f = evsel->handler.func; | |
487 | return f(evsel, sample); | |
488 | } | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | static int | |
494 | process_sample_cpu_idle(struct perf_evsel *evsel __maybe_unused, | |
495 | struct perf_sample *sample) | |
496 | { | |
497 | struct power_processor_entry *ppe = sample->raw_data; | |
498 | ||
499 | if (ppe->state == (u32) PWR_EVENT_EXIT) | |
500 | c_state_end(ppe->cpu_id, sample->time); | |
501 | else | |
502 | c_state_start(ppe->cpu_id, sample->time, ppe->state); | |
503 | return 0; | |
504 | } | |
505 | ||
506 | static int | |
507 | process_sample_cpu_frequency(struct perf_evsel *evsel __maybe_unused, | |
508 | struct perf_sample *sample) | |
509 | { | |
510 | struct power_processor_entry *ppe = sample->raw_data; | |
511 | ||
512 | p_state_change(ppe->cpu_id, sample->time, ppe->state); | |
513 | return 0; | |
514 | } | |
515 | ||
516 | static int | |
517 | process_sample_sched_wakeup(struct perf_evsel *evsel __maybe_unused, | |
518 | struct perf_sample *sample) | |
519 | { | |
520 | struct trace_entry *te = sample->raw_data; | |
521 | ||
522 | sched_wakeup(sample->cpu, sample->time, sample->pid, te); | |
523 | return 0; | |
524 | } | |
10274989 | 525 | |
5936678e JO |
526 | static int |
527 | process_sample_sched_switch(struct perf_evsel *evsel __maybe_unused, | |
528 | struct perf_sample *sample) | |
529 | { | |
530 | struct trace_entry *te = sample->raw_data; | |
10274989 | 531 | |
5936678e JO |
532 | sched_switch(sample->cpu, sample->time, te); |
533 | return 0; | |
534 | } | |
20c457b8 TR |
535 | |
536 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
5936678e JO |
537 | static int |
538 | process_sample_power_start(struct perf_evsel *evsel __maybe_unused, | |
539 | struct perf_sample *sample) | |
540 | { | |
541 | struct power_entry_old *peo = sample->raw_data; | |
542 | ||
543 | c_state_start(peo->cpu_id, sample->time, peo->value); | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static int | |
548 | process_sample_power_end(struct perf_evsel *evsel __maybe_unused, | |
549 | struct perf_sample *sample) | |
550 | { | |
551 | c_state_end(sample->cpu, sample->time); | |
552 | return 0; | |
553 | } | |
554 | ||
555 | static int | |
556 | process_sample_power_frequency(struct perf_evsel *evsel __maybe_unused, | |
557 | struct perf_sample *sample) | |
558 | { | |
559 | struct power_entry_old *peo = sample->raw_data; | |
560 | ||
561 | p_state_change(peo->cpu_id, sample->time, peo->value); | |
10274989 AV |
562 | return 0; |
563 | } | |
5936678e | 564 | #endif /* SUPPORT_OLD_POWER_EVENTS */ |
10274989 AV |
565 | |
566 | /* | |
567 | * After the last sample we need to wrap up the current C/P state | |
568 | * and close out each CPU for these. | |
569 | */ | |
570 | static void end_sample_processing(void) | |
571 | { | |
572 | u64 cpu; | |
573 | struct power_event *pwr; | |
574 | ||
39a90a8e | 575 | for (cpu = 0; cpu <= numcpus; cpu++) { |
e0dcd6fb ACM |
576 | /* C state */ |
577 | #if 0 | |
578 | pwr = zalloc(sizeof(*pwr)); | |
10274989 AV |
579 | if (!pwr) |
580 | return; | |
10274989 | 581 | |
10274989 AV |
582 | pwr->state = cpus_cstate_state[cpu]; |
583 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
584 | pwr->end_time = last_time; | |
585 | pwr->cpu = cpu; | |
586 | pwr->type = CSTATE; | |
587 | pwr->next = power_events; | |
588 | ||
589 | power_events = pwr; | |
590 | #endif | |
591 | /* P state */ | |
592 | ||
e0dcd6fb | 593 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
594 | if (!pwr) |
595 | return; | |
10274989 AV |
596 | |
597 | pwr->state = cpus_pstate_state[cpu]; | |
598 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
599 | pwr->end_time = last_time; | |
600 | pwr->cpu = cpu; | |
601 | pwr->type = PSTATE; | |
602 | pwr->next = power_events; | |
603 | ||
604 | if (!pwr->start_time) | |
605 | pwr->start_time = first_time; | |
606 | if (!pwr->state) | |
607 | pwr->state = min_freq; | |
608 | power_events = pwr; | |
609 | } | |
610 | } | |
611 | ||
10274989 AV |
612 | /* |
613 | * Sort the pid datastructure | |
614 | */ | |
615 | static void sort_pids(void) | |
616 | { | |
617 | struct per_pid *new_list, *p, *cursor, *prev; | |
618 | /* sort by ppid first, then by pid, lowest to highest */ | |
619 | ||
620 | new_list = NULL; | |
621 | ||
622 | while (all_data) { | |
623 | p = all_data; | |
624 | all_data = p->next; | |
625 | p->next = NULL; | |
626 | ||
627 | if (new_list == NULL) { | |
628 | new_list = p; | |
629 | p->next = NULL; | |
630 | continue; | |
631 | } | |
632 | prev = NULL; | |
633 | cursor = new_list; | |
634 | while (cursor) { | |
635 | if (cursor->ppid > p->ppid || | |
636 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
637 | /* must insert before */ | |
638 | if (prev) { | |
639 | p->next = prev->next; | |
640 | prev->next = p; | |
641 | cursor = NULL; | |
642 | continue; | |
643 | } else { | |
644 | p->next = new_list; | |
645 | new_list = p; | |
646 | cursor = NULL; | |
647 | continue; | |
648 | } | |
649 | } | |
650 | ||
651 | prev = cursor; | |
652 | cursor = cursor->next; | |
653 | if (!cursor) | |
654 | prev->next = p; | |
655 | } | |
656 | } | |
657 | all_data = new_list; | |
658 | } | |
659 | ||
660 | ||
661 | static void draw_c_p_states(void) | |
662 | { | |
663 | struct power_event *pwr; | |
664 | pwr = power_events; | |
665 | ||
666 | /* | |
667 | * two pass drawing so that the P state bars are on top of the C state blocks | |
668 | */ | |
669 | while (pwr) { | |
670 | if (pwr->type == CSTATE) | |
671 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
672 | pwr = pwr->next; | |
673 | } | |
674 | ||
675 | pwr = power_events; | |
676 | while (pwr) { | |
677 | if (pwr->type == PSTATE) { | |
678 | if (!pwr->state) | |
679 | pwr->state = min_freq; | |
680 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
681 | } | |
682 | pwr = pwr->next; | |
683 | } | |
684 | } | |
685 | ||
686 | static void draw_wakeups(void) | |
687 | { | |
688 | struct wake_event *we; | |
689 | struct per_pid *p; | |
690 | struct per_pidcomm *c; | |
691 | ||
692 | we = wake_events; | |
693 | while (we) { | |
694 | int from = 0, to = 0; | |
4f1202c8 | 695 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
696 | |
697 | /* locate the column of the waker and wakee */ | |
698 | p = all_data; | |
699 | while (p) { | |
700 | if (p->pid == we->waker || p->pid == we->wakee) { | |
701 | c = p->all; | |
702 | while (c) { | |
703 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 704 | if (p->pid == we->waker && !from) { |
10274989 | 705 | from = c->Y; |
3bc2a39c | 706 | task_from = strdup(c->comm); |
4f1202c8 | 707 | } |
bbe2987b | 708 | if (p->pid == we->wakee && !to) { |
10274989 | 709 | to = c->Y; |
3bc2a39c | 710 | task_to = strdup(c->comm); |
4f1202c8 | 711 | } |
10274989 AV |
712 | } |
713 | c = c->next; | |
714 | } | |
3bc2a39c AV |
715 | c = p->all; |
716 | while (c) { | |
717 | if (p->pid == we->waker && !from) { | |
718 | from = c->Y; | |
719 | task_from = strdup(c->comm); | |
720 | } | |
721 | if (p->pid == we->wakee && !to) { | |
722 | to = c->Y; | |
723 | task_to = strdup(c->comm); | |
724 | } | |
725 | c = c->next; | |
726 | } | |
10274989 AV |
727 | } |
728 | p = p->next; | |
729 | } | |
730 | ||
3bc2a39c AV |
731 | if (!task_from) { |
732 | task_from = malloc(40); | |
733 | sprintf(task_from, "[%i]", we->waker); | |
734 | } | |
735 | if (!task_to) { | |
736 | task_to = malloc(40); | |
737 | sprintf(task_to, "[%i]", we->wakee); | |
738 | } | |
739 | ||
10274989 AV |
740 | if (we->waker == -1) |
741 | svg_interrupt(we->time, to); | |
742 | else if (from && to && abs(from - to) == 1) | |
743 | svg_wakeline(we->time, from, to); | |
744 | else | |
4f1202c8 | 745 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 746 | we = we->next; |
3bc2a39c AV |
747 | |
748 | free(task_from); | |
749 | free(task_to); | |
10274989 AV |
750 | } |
751 | } | |
752 | ||
753 | static void draw_cpu_usage(void) | |
754 | { | |
755 | struct per_pid *p; | |
756 | struct per_pidcomm *c; | |
757 | struct cpu_sample *sample; | |
758 | p = all_data; | |
759 | while (p) { | |
760 | c = p->all; | |
761 | while (c) { | |
762 | sample = c->samples; | |
763 | while (sample) { | |
764 | if (sample->type == TYPE_RUNNING) | |
765 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
766 | ||
767 | sample = sample->next; | |
768 | } | |
769 | c = c->next; | |
770 | } | |
771 | p = p->next; | |
772 | } | |
773 | } | |
774 | ||
775 | static void draw_process_bars(void) | |
776 | { | |
777 | struct per_pid *p; | |
778 | struct per_pidcomm *c; | |
779 | struct cpu_sample *sample; | |
780 | int Y = 0; | |
781 | ||
782 | Y = 2 * numcpus + 2; | |
783 | ||
784 | p = all_data; | |
785 | while (p) { | |
786 | c = p->all; | |
787 | while (c) { | |
788 | if (!c->display) { | |
789 | c->Y = 0; | |
790 | c = c->next; | |
791 | continue; | |
792 | } | |
793 | ||
a92fe7b3 | 794 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
795 | sample = c->samples; |
796 | while (sample) { | |
797 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 798 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
799 | if (sample->type == TYPE_BLOCKED) |
800 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
801 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 802 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
803 | sample = sample->next; |
804 | } | |
805 | ||
806 | if (c->comm) { | |
807 | char comm[256]; | |
808 | if (c->total_time > 5000000000) /* 5 seconds */ | |
809 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
810 | else | |
811 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
812 | ||
813 | svg_text(Y, c->start_time, comm); | |
814 | } | |
815 | c->Y = Y; | |
816 | Y++; | |
817 | c = c->next; | |
818 | } | |
819 | p = p->next; | |
820 | } | |
821 | } | |
822 | ||
bbe2987b AV |
823 | static void add_process_filter(const char *string) |
824 | { | |
e0dcd6fb ACM |
825 | int pid = strtoull(string, NULL, 10); |
826 | struct process_filter *filt = malloc(sizeof(*filt)); | |
bbe2987b | 827 | |
bbe2987b AV |
828 | if (!filt) |
829 | return; | |
830 | ||
831 | filt->name = strdup(string); | |
832 | filt->pid = pid; | |
833 | filt->next = process_filter; | |
834 | ||
835 | process_filter = filt; | |
836 | } | |
837 | ||
838 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
839 | { | |
840 | struct process_filter *filt; | |
841 | if (!process_filter) | |
842 | return 1; | |
843 | ||
844 | filt = process_filter; | |
845 | while (filt) { | |
846 | if (filt->pid && p->pid == filt->pid) | |
847 | return 1; | |
848 | if (strcmp(filt->name, c->comm) == 0) | |
849 | return 1; | |
850 | filt = filt->next; | |
851 | } | |
852 | return 0; | |
853 | } | |
854 | ||
855 | static int determine_display_tasks_filtered(void) | |
856 | { | |
857 | struct per_pid *p; | |
858 | struct per_pidcomm *c; | |
859 | int count = 0; | |
860 | ||
861 | p = all_data; | |
862 | while (p) { | |
863 | p->display = 0; | |
864 | if (p->start_time == 1) | |
865 | p->start_time = first_time; | |
866 | ||
867 | /* no exit marker, task kept running to the end */ | |
868 | if (p->end_time == 0) | |
869 | p->end_time = last_time; | |
870 | ||
871 | c = p->all; | |
872 | ||
873 | while (c) { | |
874 | c->display = 0; | |
875 | ||
876 | if (c->start_time == 1) | |
877 | c->start_time = first_time; | |
878 | ||
879 | if (passes_filter(p, c)) { | |
880 | c->display = 1; | |
881 | p->display = 1; | |
882 | count++; | |
883 | } | |
884 | ||
885 | if (c->end_time == 0) | |
886 | c->end_time = last_time; | |
887 | ||
888 | c = c->next; | |
889 | } | |
890 | p = p->next; | |
891 | } | |
892 | return count; | |
893 | } | |
894 | ||
10274989 AV |
895 | static int determine_display_tasks(u64 threshold) |
896 | { | |
897 | struct per_pid *p; | |
898 | struct per_pidcomm *c; | |
899 | int count = 0; | |
900 | ||
bbe2987b AV |
901 | if (process_filter) |
902 | return determine_display_tasks_filtered(); | |
903 | ||
10274989 AV |
904 | p = all_data; |
905 | while (p) { | |
906 | p->display = 0; | |
907 | if (p->start_time == 1) | |
908 | p->start_time = first_time; | |
909 | ||
910 | /* no exit marker, task kept running to the end */ | |
911 | if (p->end_time == 0) | |
912 | p->end_time = last_time; | |
39a90a8e | 913 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
914 | p->display = 1; |
915 | ||
916 | c = p->all; | |
917 | ||
918 | while (c) { | |
919 | c->display = 0; | |
920 | ||
921 | if (c->start_time == 1) | |
922 | c->start_time = first_time; | |
923 | ||
39a90a8e | 924 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
925 | c->display = 1; |
926 | count++; | |
927 | } | |
928 | ||
929 | if (c->end_time == 0) | |
930 | c->end_time = last_time; | |
931 | ||
932 | c = c->next; | |
933 | } | |
934 | p = p->next; | |
935 | } | |
936 | return count; | |
937 | } | |
938 | ||
939 | ||
940 | ||
941 | #define TIME_THRESH 10000000 | |
942 | ||
943 | static void write_svg_file(const char *filename) | |
944 | { | |
945 | u64 i; | |
946 | int count; | |
947 | ||
948 | numcpus++; | |
949 | ||
950 | ||
951 | count = determine_display_tasks(TIME_THRESH); | |
952 | ||
953 | /* We'd like to show at least 15 tasks; be less picky if we have fewer */ | |
954 | if (count < 15) | |
955 | count = determine_display_tasks(TIME_THRESH / 10); | |
956 | ||
5094b655 | 957 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 958 | |
5094b655 | 959 | svg_time_grid(); |
10274989 AV |
960 | svg_legenda(); |
961 | ||
962 | for (i = 0; i < numcpus; i++) | |
963 | svg_cpu_box(i, max_freq, turbo_frequency); | |
964 | ||
965 | draw_cpu_usage(); | |
966 | draw_process_bars(); | |
967 | draw_c_p_states(); | |
968 | draw_wakeups(); | |
969 | ||
970 | svg_close(); | |
971 | } | |
972 | ||
70cb4e96 | 973 | static int __cmd_timechart(const char *output_name) |
5cbd0805 | 974 | { |
73bdc715 ACM |
975 | struct perf_tool perf_timechart = { |
976 | .comm = process_comm_event, | |
977 | .fork = process_fork_event, | |
978 | .exit = process_exit_event, | |
979 | .sample = process_sample_event, | |
980 | .ordered_samples = true, | |
981 | }; | |
5936678e JO |
982 | const struct perf_evsel_str_handler power_tracepoints[] = { |
983 | { "power:cpu_idle", process_sample_cpu_idle }, | |
984 | { "power:cpu_frequency", process_sample_cpu_frequency }, | |
985 | { "sched:sched_wakeup", process_sample_sched_wakeup }, | |
986 | { "sched:sched_switch", process_sample_sched_switch }, | |
987 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
988 | { "power:power_start", process_sample_power_start }, | |
989 | { "power:power_end", process_sample_power_end }, | |
990 | { "power:power_frequency", process_sample_power_frequency }, | |
991 | #endif | |
992 | }; | |
21ef97f0 | 993 | struct perf_session *session = perf_session__new(input_name, O_RDONLY, |
45694aa7 | 994 | 0, false, &perf_timechart); |
d549c769 | 995 | int ret = -EINVAL; |
10274989 | 996 | |
94c744b6 ACM |
997 | if (session == NULL) |
998 | return -ENOMEM; | |
999 | ||
d549c769 ACM |
1000 | if (!perf_session__has_traces(session, "timechart record")) |
1001 | goto out_delete; | |
1002 | ||
5936678e JO |
1003 | if (perf_session__set_tracepoints_handlers(session, |
1004 | power_tracepoints)) { | |
1005 | pr_err("Initializing session tracepoint handlers failed\n"); | |
1006 | goto out_delete; | |
1007 | } | |
1008 | ||
45694aa7 | 1009 | ret = perf_session__process_events(session, &perf_timechart); |
5cbd0805 | 1010 | if (ret) |
94c744b6 | 1011 | goto out_delete; |
10274989 | 1012 | |
10274989 AV |
1013 | end_sample_processing(); |
1014 | ||
1015 | sort_pids(); | |
1016 | ||
1017 | write_svg_file(output_name); | |
1018 | ||
6beba7ad ACM |
1019 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1020 | (last_time - first_time) / 1000000000.0, output_name); | |
94c744b6 ACM |
1021 | out_delete: |
1022 | perf_session__delete(session); | |
1023 | return ret; | |
10274989 AV |
1024 | } |
1025 | ||
3c09eebd AV |
1026 | static int __cmd_record(int argc, const char **argv) |
1027 | { | |
73bdc715 ACM |
1028 | #ifdef SUPPORT_OLD_POWER_EVENTS |
1029 | const char * const record_old_args[] = { | |
4a4d371a | 1030 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1031 | "-e", "power:power_start", |
1032 | "-e", "power:power_end", | |
1033 | "-e", "power:power_frequency", | |
1034 | "-e", "sched:sched_wakeup", | |
1035 | "-e", "sched:sched_switch", | |
1036 | }; | |
1037 | #endif | |
1038 | const char * const record_new_args[] = { | |
4a4d371a | 1039 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1040 | "-e", "power:cpu_frequency", |
1041 | "-e", "power:cpu_idle", | |
1042 | "-e", "sched:sched_wakeup", | |
1043 | "-e", "sched:sched_switch", | |
1044 | }; | |
3c09eebd AV |
1045 | unsigned int rec_argc, i, j; |
1046 | const char **rec_argv; | |
20c457b8 TR |
1047 | const char * const *record_args = record_new_args; |
1048 | unsigned int record_elems = ARRAY_SIZE(record_new_args); | |
1049 | ||
1050 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
1051 | if (!is_valid_tracepoint("power:cpu_idle") && | |
1052 | is_valid_tracepoint("power:power_start")) { | |
1053 | use_old_power_events = 1; | |
1054 | record_args = record_old_args; | |
1055 | record_elems = ARRAY_SIZE(record_old_args); | |
1056 | } | |
1057 | #endif | |
3c09eebd | 1058 | |
20c457b8 | 1059 | rec_argc = record_elems + argc - 1; |
3c09eebd AV |
1060 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1061 | ||
ce47dc56 CS |
1062 | if (rec_argv == NULL) |
1063 | return -ENOMEM; | |
1064 | ||
20c457b8 | 1065 | for (i = 0; i < record_elems; i++) |
3c09eebd AV |
1066 | rec_argv[i] = strdup(record_args[i]); |
1067 | ||
1068 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1069 | rec_argv[i] = argv[j]; | |
1070 | ||
1071 | return cmd_record(i, rec_argv, NULL); | |
1072 | } | |
1073 | ||
bbe2987b | 1074 | static int |
1d037ca1 IT |
1075 | parse_process(const struct option *opt __maybe_unused, const char *arg, |
1076 | int __maybe_unused unset) | |
bbe2987b AV |
1077 | { |
1078 | if (arg) | |
1079 | add_process_filter(arg); | |
1080 | return 0; | |
1081 | } | |
1082 | ||
73bdc715 ACM |
1083 | int cmd_timechart(int argc, const char **argv, |
1084 | const char *prefix __maybe_unused) | |
1085 | { | |
73bdc715 ACM |
1086 | const char *output_name = "output.svg"; |
1087 | const struct option options[] = { | |
1088 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
1089 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1090 | OPT_INTEGER('w', "width", &svg_page_width, "page width"), | |
1091 | OPT_BOOLEAN('P', "power-only", &power_only, "output power data only"), | |
bbe2987b AV |
1092 | OPT_CALLBACK('p', "process", NULL, "process", |
1093 | "process selector. Pass a pid or process name.", | |
1094 | parse_process), | |
ec5761ea DA |
1095 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
1096 | "Look for files with symbols relative to this directory"), | |
10274989 | 1097 | OPT_END() |
73bdc715 ACM |
1098 | }; |
1099 | const char * const timechart_usage[] = { | |
1100 | "perf timechart [<options>] {record}", | |
1101 | NULL | |
1102 | }; | |
10274989 | 1103 | |
3c09eebd AV |
1104 | argc = parse_options(argc, argv, options, timechart_usage, |
1105 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1106 | |
655000e7 ACM |
1107 | symbol__init(); |
1108 | ||
3c09eebd AV |
1109 | if (argc && !strncmp(argv[0], "rec", 3)) |
1110 | return __cmd_record(argc, argv); | |
1111 | else if (argc) | |
1112 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1113 | |
1114 | setup_pager(); | |
1115 | ||
70cb4e96 | 1116 | return __cmd_timechart(output_name); |
10274989 | 1117 | } |