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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" |
f5fc1412 | 39 | #include "util/data.h" |
10274989 | 40 | |
20c457b8 TR |
41 | #define SUPPORT_OLD_POWER_EVENTS 1 |
42 | #define PWR_EVENT_EXIT -1 | |
43 | ||
44 | ||
10274989 AV |
45 | static unsigned int numcpus; |
46 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
47 | static u64 max_freq; /* Highest CPU frequency seen */ | |
48 | static u64 turbo_frequency; | |
49 | ||
50 | static u64 first_time, last_time; | |
51 | ||
c0555642 | 52 | static bool power_only; |
39a90a8e | 53 | |
10274989 | 54 | |
10274989 AV |
55 | struct per_pid; |
56 | struct per_pidcomm; | |
57 | ||
58 | struct cpu_sample; | |
59 | struct power_event; | |
60 | struct wake_event; | |
61 | ||
62 | struct sample_wrapper; | |
63 | ||
64 | /* | |
65 | * Datastructure layout: | |
66 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
67 | * Each "pid" entry, has a list of "comm"s. | |
68 | * this is because we want to track different programs different, while | |
69 | * exec will reuse the original pid (by design). | |
70 | * Each comm has a list of samples that will be used to draw | |
71 | * final graph. | |
72 | */ | |
73 | ||
74 | struct per_pid { | |
75 | struct per_pid *next; | |
76 | ||
77 | int pid; | |
78 | int ppid; | |
79 | ||
80 | u64 start_time; | |
81 | u64 end_time; | |
82 | u64 total_time; | |
83 | int display; | |
84 | ||
85 | struct per_pidcomm *all; | |
86 | struct per_pidcomm *current; | |
10274989 AV |
87 | }; |
88 | ||
89 | ||
90 | struct per_pidcomm { | |
91 | struct per_pidcomm *next; | |
92 | ||
93 | u64 start_time; | |
94 | u64 end_time; | |
95 | u64 total_time; | |
96 | ||
97 | int Y; | |
98 | int display; | |
99 | ||
100 | long state; | |
101 | u64 state_since; | |
102 | ||
103 | char *comm; | |
104 | ||
105 | struct cpu_sample *samples; | |
106 | }; | |
107 | ||
108 | struct sample_wrapper { | |
109 | struct sample_wrapper *next; | |
110 | ||
111 | u64 timestamp; | |
112 | unsigned char data[0]; | |
113 | }; | |
114 | ||
115 | #define TYPE_NONE 0 | |
116 | #define TYPE_RUNNING 1 | |
117 | #define TYPE_WAITING 2 | |
118 | #define TYPE_BLOCKED 3 | |
119 | ||
120 | struct cpu_sample { | |
121 | struct cpu_sample *next; | |
122 | ||
123 | u64 start_time; | |
124 | u64 end_time; | |
125 | int type; | |
126 | int cpu; | |
127 | }; | |
128 | ||
129 | static struct per_pid *all_data; | |
130 | ||
131 | #define CSTATE 1 | |
132 | #define PSTATE 2 | |
133 | ||
134 | struct power_event { | |
135 | struct power_event *next; | |
136 | int type; | |
137 | int state; | |
138 | u64 start_time; | |
139 | u64 end_time; | |
140 | int cpu; | |
141 | }; | |
142 | ||
143 | struct wake_event { | |
144 | struct wake_event *next; | |
145 | int waker; | |
146 | int wakee; | |
147 | u64 time; | |
148 | }; | |
149 | ||
150 | static struct power_event *power_events; | |
151 | static struct wake_event *wake_events; | |
152 | ||
bbe2987b AV |
153 | struct process_filter; |
154 | struct process_filter { | |
5cbd0805 LZ |
155 | char *name; |
156 | int pid; | |
157 | struct process_filter *next; | |
bbe2987b AV |
158 | }; |
159 | ||
160 | static struct process_filter *process_filter; | |
161 | ||
162 | ||
10274989 AV |
163 | static struct per_pid *find_create_pid(int pid) |
164 | { | |
165 | struct per_pid *cursor = all_data; | |
166 | ||
167 | while (cursor) { | |
168 | if (cursor->pid == pid) | |
169 | return cursor; | |
170 | cursor = cursor->next; | |
171 | } | |
e0dcd6fb | 172 | cursor = zalloc(sizeof(*cursor)); |
10274989 | 173 | assert(cursor != NULL); |
10274989 AV |
174 | cursor->pid = pid; |
175 | cursor->next = all_data; | |
176 | all_data = cursor; | |
177 | return cursor; | |
178 | } | |
179 | ||
180 | static void pid_set_comm(int pid, char *comm) | |
181 | { | |
182 | struct per_pid *p; | |
183 | struct per_pidcomm *c; | |
184 | p = find_create_pid(pid); | |
185 | c = p->all; | |
186 | while (c) { | |
187 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
188 | p->current = c; | |
189 | return; | |
190 | } | |
191 | if (!c->comm) { | |
192 | c->comm = strdup(comm); | |
193 | p->current = c; | |
194 | return; | |
195 | } | |
196 | c = c->next; | |
197 | } | |
e0dcd6fb | 198 | c = zalloc(sizeof(*c)); |
10274989 | 199 | assert(c != NULL); |
10274989 AV |
200 | c->comm = strdup(comm); |
201 | p->current = c; | |
202 | c->next = p->all; | |
203 | p->all = c; | |
204 | } | |
205 | ||
206 | static void pid_fork(int pid, int ppid, u64 timestamp) | |
207 | { | |
208 | struct per_pid *p, *pp; | |
209 | p = find_create_pid(pid); | |
210 | pp = find_create_pid(ppid); | |
211 | p->ppid = ppid; | |
212 | if (pp->current && pp->current->comm && !p->current) | |
213 | pid_set_comm(pid, pp->current->comm); | |
214 | ||
215 | p->start_time = timestamp; | |
216 | if (p->current) { | |
217 | p->current->start_time = timestamp; | |
218 | p->current->state_since = timestamp; | |
219 | } | |
220 | } | |
221 | ||
222 | static void pid_exit(int pid, u64 timestamp) | |
223 | { | |
224 | struct per_pid *p; | |
225 | p = find_create_pid(pid); | |
226 | p->end_time = timestamp; | |
227 | if (p->current) | |
228 | p->current->end_time = timestamp; | |
229 | } | |
230 | ||
231 | static void | |
232 | pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end) | |
233 | { | |
234 | struct per_pid *p; | |
235 | struct per_pidcomm *c; | |
236 | struct cpu_sample *sample; | |
237 | ||
238 | p = find_create_pid(pid); | |
239 | c = p->current; | |
240 | if (!c) { | |
e0dcd6fb | 241 | c = zalloc(sizeof(*c)); |
10274989 | 242 | assert(c != NULL); |
10274989 AV |
243 | p->current = c; |
244 | c->next = p->all; | |
245 | p->all = c; | |
246 | } | |
247 | ||
e0dcd6fb | 248 | sample = zalloc(sizeof(*sample)); |
10274989 | 249 | assert(sample != NULL); |
10274989 AV |
250 | sample->start_time = start; |
251 | sample->end_time = end; | |
252 | sample->type = type; | |
253 | sample->next = c->samples; | |
254 | sample->cpu = cpu; | |
255 | c->samples = sample; | |
256 | ||
257 | if (sample->type == TYPE_RUNNING && end > start && start > 0) { | |
258 | c->total_time += (end-start); | |
259 | p->total_time += (end-start); | |
260 | } | |
261 | ||
262 | if (c->start_time == 0 || c->start_time > start) | |
263 | c->start_time = start; | |
264 | if (p->start_time == 0 || p->start_time > start) | |
265 | p->start_time = start; | |
10274989 AV |
266 | } |
267 | ||
268 | #define MAX_CPUS 4096 | |
269 | ||
270 | static u64 cpus_cstate_start_times[MAX_CPUS]; | |
271 | static int cpus_cstate_state[MAX_CPUS]; | |
272 | static u64 cpus_pstate_start_times[MAX_CPUS]; | |
273 | static u64 cpus_pstate_state[MAX_CPUS]; | |
274 | ||
1d037ca1 | 275 | static int process_comm_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 276 | union perf_event *event, |
1d037ca1 IT |
277 | struct perf_sample *sample __maybe_unused, |
278 | struct machine *machine __maybe_unused) | |
10274989 | 279 | { |
8f06d7e6 | 280 | pid_set_comm(event->comm.tid, event->comm.comm); |
10274989 AV |
281 | return 0; |
282 | } | |
d8f66248 | 283 | |
1d037ca1 | 284 | static int process_fork_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 285 | union perf_event *event, |
1d037ca1 IT |
286 | struct perf_sample *sample __maybe_unused, |
287 | struct machine *machine __maybe_unused) | |
10274989 AV |
288 | { |
289 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
290 | return 0; | |
291 | } | |
292 | ||
1d037ca1 | 293 | static int process_exit_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 294 | union perf_event *event, |
1d037ca1 IT |
295 | struct perf_sample *sample __maybe_unused, |
296 | struct machine *machine __maybe_unused) | |
10274989 AV |
297 | { |
298 | pid_exit(event->fork.pid, event->fork.time); | |
299 | return 0; | |
300 | } | |
301 | ||
302 | struct trace_entry { | |
10274989 AV |
303 | unsigned short type; |
304 | unsigned char flags; | |
305 | unsigned char preempt_count; | |
306 | int pid; | |
028c5152 | 307 | int lock_depth; |
10274989 AV |
308 | }; |
309 | ||
20c457b8 TR |
310 | #ifdef SUPPORT_OLD_POWER_EVENTS |
311 | static int use_old_power_events; | |
312 | struct power_entry_old { | |
10274989 | 313 | struct trace_entry te; |
4c21adf2 TR |
314 | u64 type; |
315 | u64 value; | |
316 | u64 cpu_id; | |
10274989 | 317 | }; |
20c457b8 TR |
318 | #endif |
319 | ||
320 | struct power_processor_entry { | |
321 | struct trace_entry te; | |
322 | u32 state; | |
323 | u32 cpu_id; | |
324 | }; | |
10274989 AV |
325 | |
326 | #define TASK_COMM_LEN 16 | |
327 | struct wakeup_entry { | |
328 | struct trace_entry te; | |
329 | char comm[TASK_COMM_LEN]; | |
330 | int pid; | |
331 | int prio; | |
332 | int success; | |
333 | }; | |
334 | ||
10274989 AV |
335 | struct sched_switch { |
336 | struct trace_entry te; | |
337 | char prev_comm[TASK_COMM_LEN]; | |
338 | int prev_pid; | |
339 | int prev_prio; | |
340 | long prev_state; /* Arjan weeps. */ | |
341 | char next_comm[TASK_COMM_LEN]; | |
342 | int next_pid; | |
343 | int next_prio; | |
344 | }; | |
345 | ||
346 | static void c_state_start(int cpu, u64 timestamp, int state) | |
347 | { | |
348 | cpus_cstate_start_times[cpu] = timestamp; | |
349 | cpus_cstate_state[cpu] = state; | |
350 | } | |
351 | ||
352 | static void c_state_end(int cpu, u64 timestamp) | |
353 | { | |
e0dcd6fb ACM |
354 | struct power_event *pwr = zalloc(sizeof(*pwr)); |
355 | ||
10274989 AV |
356 | if (!pwr) |
357 | return; | |
10274989 AV |
358 | |
359 | pwr->state = cpus_cstate_state[cpu]; | |
360 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
361 | pwr->end_time = timestamp; | |
362 | pwr->cpu = cpu; | |
363 | pwr->type = CSTATE; | |
364 | pwr->next = power_events; | |
365 | ||
366 | power_events = pwr; | |
367 | } | |
368 | ||
369 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
370 | { | |
371 | struct power_event *pwr; | |
10274989 AV |
372 | |
373 | if (new_freq > 8000000) /* detect invalid data */ | |
374 | return; | |
375 | ||
e0dcd6fb | 376 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
377 | if (!pwr) |
378 | return; | |
10274989 AV |
379 | |
380 | pwr->state = cpus_pstate_state[cpu]; | |
381 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
382 | pwr->end_time = timestamp; | |
383 | pwr->cpu = cpu; | |
384 | pwr->type = PSTATE; | |
385 | pwr->next = power_events; | |
386 | ||
387 | if (!pwr->start_time) | |
388 | pwr->start_time = first_time; | |
389 | ||
390 | power_events = pwr; | |
391 | ||
392 | cpus_pstate_state[cpu] = new_freq; | |
393 | cpus_pstate_start_times[cpu] = timestamp; | |
394 | ||
395 | if ((u64)new_freq > max_freq) | |
396 | max_freq = new_freq; | |
397 | ||
398 | if (new_freq < min_freq || min_freq == 0) | |
399 | min_freq = new_freq; | |
400 | ||
401 | if (new_freq == max_freq - 1000) | |
402 | turbo_frequency = max_freq; | |
403 | } | |
404 | ||
405 | static void | |
406 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
407 | { | |
10274989 AV |
408 | struct per_pid *p; |
409 | struct wakeup_entry *wake = (void *)te; | |
e0dcd6fb | 410 | struct wake_event *we = zalloc(sizeof(*we)); |
10274989 | 411 | |
10274989 AV |
412 | if (!we) |
413 | return; | |
414 | ||
10274989 AV |
415 | we->time = timestamp; |
416 | we->waker = pid; | |
417 | ||
418 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
419 | we->waker = -1; | |
420 | ||
421 | we->wakee = wake->pid; | |
422 | we->next = wake_events; | |
423 | wake_events = we; | |
424 | p = find_create_pid(we->wakee); | |
425 | ||
426 | if (p && p->current && p->current->state == TYPE_NONE) { | |
427 | p->current->state_since = timestamp; | |
428 | p->current->state = TYPE_WAITING; | |
429 | } | |
430 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
431 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
432 | p->current->state_since = timestamp; | |
433 | p->current->state = TYPE_WAITING; | |
434 | } | |
435 | } | |
436 | ||
437 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
438 | { | |
439 | struct per_pid *p = NULL, *prev_p; | |
440 | struct sched_switch *sw = (void *)te; | |
441 | ||
442 | ||
443 | prev_p = find_create_pid(sw->prev_pid); | |
444 | ||
445 | p = find_create_pid(sw->next_pid); | |
446 | ||
447 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
448 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
449 | if (p && p->current) { | |
450 | if (p->current->state != TYPE_NONE) | |
451 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
452 | ||
33e26a1b JL |
453 | p->current->state_since = timestamp; |
454 | p->current->state = TYPE_RUNNING; | |
10274989 AV |
455 | } |
456 | ||
457 | if (prev_p->current) { | |
458 | prev_p->current->state = TYPE_NONE; | |
459 | prev_p->current->state_since = timestamp; | |
460 | if (sw->prev_state & 2) | |
461 | prev_p->current->state = TYPE_BLOCKED; | |
462 | if (sw->prev_state == 0) | |
463 | prev_p->current->state = TYPE_WAITING; | |
464 | } | |
465 | } | |
466 | ||
5936678e JO |
467 | typedef int (*tracepoint_handler)(struct perf_evsel *evsel, |
468 | struct perf_sample *sample); | |
10274989 | 469 | |
1d037ca1 IT |
470 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
471 | union perf_event *event __maybe_unused, | |
8d50e5b4 | 472 | struct perf_sample *sample, |
e3f42609 | 473 | struct perf_evsel *evsel, |
1d037ca1 | 474 | struct machine *machine __maybe_unused) |
10274989 | 475 | { |
e3f42609 | 476 | if (evsel->attr.sample_type & PERF_SAMPLE_TIME) { |
640c03ce ACM |
477 | if (!first_time || first_time > sample->time) |
478 | first_time = sample->time; | |
479 | if (last_time < sample->time) | |
480 | last_time = sample->time; | |
10274989 | 481 | } |
180f95e2 | 482 | |
5936678e JO |
483 | if (sample->cpu > numcpus) |
484 | numcpus = sample->cpu; | |
485 | ||
486 | if (evsel->handler.func != NULL) { | |
487 | tracepoint_handler f = evsel->handler.func; | |
488 | return f(evsel, sample); | |
489 | } | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | static int | |
495 | process_sample_cpu_idle(struct perf_evsel *evsel __maybe_unused, | |
496 | struct perf_sample *sample) | |
497 | { | |
498 | struct power_processor_entry *ppe = sample->raw_data; | |
499 | ||
500 | if (ppe->state == (u32) PWR_EVENT_EXIT) | |
501 | c_state_end(ppe->cpu_id, sample->time); | |
502 | else | |
503 | c_state_start(ppe->cpu_id, sample->time, ppe->state); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | static int | |
508 | process_sample_cpu_frequency(struct perf_evsel *evsel __maybe_unused, | |
509 | struct perf_sample *sample) | |
510 | { | |
511 | struct power_processor_entry *ppe = sample->raw_data; | |
512 | ||
513 | p_state_change(ppe->cpu_id, sample->time, ppe->state); | |
514 | return 0; | |
515 | } | |
516 | ||
517 | static int | |
518 | process_sample_sched_wakeup(struct perf_evsel *evsel __maybe_unused, | |
519 | struct perf_sample *sample) | |
520 | { | |
521 | struct trace_entry *te = sample->raw_data; | |
522 | ||
523 | sched_wakeup(sample->cpu, sample->time, sample->pid, te); | |
524 | return 0; | |
525 | } | |
10274989 | 526 | |
5936678e JO |
527 | static int |
528 | process_sample_sched_switch(struct perf_evsel *evsel __maybe_unused, | |
529 | struct perf_sample *sample) | |
530 | { | |
531 | struct trace_entry *te = sample->raw_data; | |
10274989 | 532 | |
5936678e JO |
533 | sched_switch(sample->cpu, sample->time, te); |
534 | return 0; | |
535 | } | |
20c457b8 TR |
536 | |
537 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
5936678e JO |
538 | static int |
539 | process_sample_power_start(struct perf_evsel *evsel __maybe_unused, | |
540 | struct perf_sample *sample) | |
541 | { | |
542 | struct power_entry_old *peo = sample->raw_data; | |
543 | ||
544 | c_state_start(peo->cpu_id, sample->time, peo->value); | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static int | |
549 | process_sample_power_end(struct perf_evsel *evsel __maybe_unused, | |
550 | struct perf_sample *sample) | |
551 | { | |
552 | c_state_end(sample->cpu, sample->time); | |
553 | return 0; | |
554 | } | |
555 | ||
556 | static int | |
557 | process_sample_power_frequency(struct perf_evsel *evsel __maybe_unused, | |
558 | struct perf_sample *sample) | |
559 | { | |
560 | struct power_entry_old *peo = sample->raw_data; | |
561 | ||
562 | p_state_change(peo->cpu_id, sample->time, peo->value); | |
10274989 AV |
563 | return 0; |
564 | } | |
5936678e | 565 | #endif /* SUPPORT_OLD_POWER_EVENTS */ |
10274989 AV |
566 | |
567 | /* | |
568 | * After the last sample we need to wrap up the current C/P state | |
569 | * and close out each CPU for these. | |
570 | */ | |
571 | static void end_sample_processing(void) | |
572 | { | |
573 | u64 cpu; | |
574 | struct power_event *pwr; | |
575 | ||
39a90a8e | 576 | for (cpu = 0; cpu <= numcpus; cpu++) { |
e0dcd6fb ACM |
577 | /* C state */ |
578 | #if 0 | |
579 | pwr = zalloc(sizeof(*pwr)); | |
10274989 AV |
580 | if (!pwr) |
581 | return; | |
10274989 | 582 | |
10274989 AV |
583 | pwr->state = cpus_cstate_state[cpu]; |
584 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
585 | pwr->end_time = last_time; | |
586 | pwr->cpu = cpu; | |
587 | pwr->type = CSTATE; | |
588 | pwr->next = power_events; | |
589 | ||
590 | power_events = pwr; | |
591 | #endif | |
592 | /* P state */ | |
593 | ||
e0dcd6fb | 594 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
595 | if (!pwr) |
596 | return; | |
10274989 AV |
597 | |
598 | pwr->state = cpus_pstate_state[cpu]; | |
599 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
600 | pwr->end_time = last_time; | |
601 | pwr->cpu = cpu; | |
602 | pwr->type = PSTATE; | |
603 | pwr->next = power_events; | |
604 | ||
605 | if (!pwr->start_time) | |
606 | pwr->start_time = first_time; | |
607 | if (!pwr->state) | |
608 | pwr->state = min_freq; | |
609 | power_events = pwr; | |
610 | } | |
611 | } | |
612 | ||
10274989 AV |
613 | /* |
614 | * Sort the pid datastructure | |
615 | */ | |
616 | static void sort_pids(void) | |
617 | { | |
618 | struct per_pid *new_list, *p, *cursor, *prev; | |
619 | /* sort by ppid first, then by pid, lowest to highest */ | |
620 | ||
621 | new_list = NULL; | |
622 | ||
623 | while (all_data) { | |
624 | p = all_data; | |
625 | all_data = p->next; | |
626 | p->next = NULL; | |
627 | ||
628 | if (new_list == NULL) { | |
629 | new_list = p; | |
630 | p->next = NULL; | |
631 | continue; | |
632 | } | |
633 | prev = NULL; | |
634 | cursor = new_list; | |
635 | while (cursor) { | |
636 | if (cursor->ppid > p->ppid || | |
637 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
638 | /* must insert before */ | |
639 | if (prev) { | |
640 | p->next = prev->next; | |
641 | prev->next = p; | |
642 | cursor = NULL; | |
643 | continue; | |
644 | } else { | |
645 | p->next = new_list; | |
646 | new_list = p; | |
647 | cursor = NULL; | |
648 | continue; | |
649 | } | |
650 | } | |
651 | ||
652 | prev = cursor; | |
653 | cursor = cursor->next; | |
654 | if (!cursor) | |
655 | prev->next = p; | |
656 | } | |
657 | } | |
658 | all_data = new_list; | |
659 | } | |
660 | ||
661 | ||
662 | static void draw_c_p_states(void) | |
663 | { | |
664 | struct power_event *pwr; | |
665 | pwr = power_events; | |
666 | ||
667 | /* | |
668 | * two pass drawing so that the P state bars are on top of the C state blocks | |
669 | */ | |
670 | while (pwr) { | |
671 | if (pwr->type == CSTATE) | |
672 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
673 | pwr = pwr->next; | |
674 | } | |
675 | ||
676 | pwr = power_events; | |
677 | while (pwr) { | |
678 | if (pwr->type == PSTATE) { | |
679 | if (!pwr->state) | |
680 | pwr->state = min_freq; | |
681 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
682 | } | |
683 | pwr = pwr->next; | |
684 | } | |
685 | } | |
686 | ||
687 | static void draw_wakeups(void) | |
688 | { | |
689 | struct wake_event *we; | |
690 | struct per_pid *p; | |
691 | struct per_pidcomm *c; | |
692 | ||
693 | we = wake_events; | |
694 | while (we) { | |
695 | int from = 0, to = 0; | |
4f1202c8 | 696 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
697 | |
698 | /* locate the column of the waker and wakee */ | |
699 | p = all_data; | |
700 | while (p) { | |
701 | if (p->pid == we->waker || p->pid == we->wakee) { | |
702 | c = p->all; | |
703 | while (c) { | |
704 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 705 | if (p->pid == we->waker && !from) { |
10274989 | 706 | from = c->Y; |
3bc2a39c | 707 | task_from = strdup(c->comm); |
4f1202c8 | 708 | } |
bbe2987b | 709 | if (p->pid == we->wakee && !to) { |
10274989 | 710 | to = c->Y; |
3bc2a39c | 711 | task_to = strdup(c->comm); |
4f1202c8 | 712 | } |
10274989 AV |
713 | } |
714 | c = c->next; | |
715 | } | |
3bc2a39c AV |
716 | c = p->all; |
717 | while (c) { | |
718 | if (p->pid == we->waker && !from) { | |
719 | from = c->Y; | |
720 | task_from = strdup(c->comm); | |
721 | } | |
722 | if (p->pid == we->wakee && !to) { | |
723 | to = c->Y; | |
724 | task_to = strdup(c->comm); | |
725 | } | |
726 | c = c->next; | |
727 | } | |
10274989 AV |
728 | } |
729 | p = p->next; | |
730 | } | |
731 | ||
3bc2a39c AV |
732 | if (!task_from) { |
733 | task_from = malloc(40); | |
734 | sprintf(task_from, "[%i]", we->waker); | |
735 | } | |
736 | if (!task_to) { | |
737 | task_to = malloc(40); | |
738 | sprintf(task_to, "[%i]", we->wakee); | |
739 | } | |
740 | ||
10274989 AV |
741 | if (we->waker == -1) |
742 | svg_interrupt(we->time, to); | |
743 | else if (from && to && abs(from - to) == 1) | |
744 | svg_wakeline(we->time, from, to); | |
745 | else | |
4f1202c8 | 746 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 747 | we = we->next; |
3bc2a39c AV |
748 | |
749 | free(task_from); | |
750 | free(task_to); | |
10274989 AV |
751 | } |
752 | } | |
753 | ||
754 | static void draw_cpu_usage(void) | |
755 | { | |
756 | struct per_pid *p; | |
757 | struct per_pidcomm *c; | |
758 | struct cpu_sample *sample; | |
759 | p = all_data; | |
760 | while (p) { | |
761 | c = p->all; | |
762 | while (c) { | |
763 | sample = c->samples; | |
764 | while (sample) { | |
765 | if (sample->type == TYPE_RUNNING) | |
766 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
767 | ||
768 | sample = sample->next; | |
769 | } | |
770 | c = c->next; | |
771 | } | |
772 | p = p->next; | |
773 | } | |
774 | } | |
775 | ||
776 | static void draw_process_bars(void) | |
777 | { | |
778 | struct per_pid *p; | |
779 | struct per_pidcomm *c; | |
780 | struct cpu_sample *sample; | |
781 | int Y = 0; | |
782 | ||
783 | Y = 2 * numcpus + 2; | |
784 | ||
785 | p = all_data; | |
786 | while (p) { | |
787 | c = p->all; | |
788 | while (c) { | |
789 | if (!c->display) { | |
790 | c->Y = 0; | |
791 | c = c->next; | |
792 | continue; | |
793 | } | |
794 | ||
a92fe7b3 | 795 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
796 | sample = c->samples; |
797 | while (sample) { | |
798 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 799 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
800 | if (sample->type == TYPE_BLOCKED) |
801 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
802 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 803 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
804 | sample = sample->next; |
805 | } | |
806 | ||
807 | if (c->comm) { | |
808 | char comm[256]; | |
809 | if (c->total_time > 5000000000) /* 5 seconds */ | |
810 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
811 | else | |
812 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
813 | ||
814 | svg_text(Y, c->start_time, comm); | |
815 | } | |
816 | c->Y = Y; | |
817 | Y++; | |
818 | c = c->next; | |
819 | } | |
820 | p = p->next; | |
821 | } | |
822 | } | |
823 | ||
bbe2987b AV |
824 | static void add_process_filter(const char *string) |
825 | { | |
e0dcd6fb ACM |
826 | int pid = strtoull(string, NULL, 10); |
827 | struct process_filter *filt = malloc(sizeof(*filt)); | |
bbe2987b | 828 | |
bbe2987b AV |
829 | if (!filt) |
830 | return; | |
831 | ||
832 | filt->name = strdup(string); | |
833 | filt->pid = pid; | |
834 | filt->next = process_filter; | |
835 | ||
836 | process_filter = filt; | |
837 | } | |
838 | ||
839 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
840 | { | |
841 | struct process_filter *filt; | |
842 | if (!process_filter) | |
843 | return 1; | |
844 | ||
845 | filt = process_filter; | |
846 | while (filt) { | |
847 | if (filt->pid && p->pid == filt->pid) | |
848 | return 1; | |
849 | if (strcmp(filt->name, c->comm) == 0) | |
850 | return 1; | |
851 | filt = filt->next; | |
852 | } | |
853 | return 0; | |
854 | } | |
855 | ||
856 | static int determine_display_tasks_filtered(void) | |
857 | { | |
858 | struct per_pid *p; | |
859 | struct per_pidcomm *c; | |
860 | int count = 0; | |
861 | ||
862 | p = all_data; | |
863 | while (p) { | |
864 | p->display = 0; | |
865 | if (p->start_time == 1) | |
866 | p->start_time = first_time; | |
867 | ||
868 | /* no exit marker, task kept running to the end */ | |
869 | if (p->end_time == 0) | |
870 | p->end_time = last_time; | |
871 | ||
872 | c = p->all; | |
873 | ||
874 | while (c) { | |
875 | c->display = 0; | |
876 | ||
877 | if (c->start_time == 1) | |
878 | c->start_time = first_time; | |
879 | ||
880 | if (passes_filter(p, c)) { | |
881 | c->display = 1; | |
882 | p->display = 1; | |
883 | count++; | |
884 | } | |
885 | ||
886 | if (c->end_time == 0) | |
887 | c->end_time = last_time; | |
888 | ||
889 | c = c->next; | |
890 | } | |
891 | p = p->next; | |
892 | } | |
893 | return count; | |
894 | } | |
895 | ||
10274989 AV |
896 | static int determine_display_tasks(u64 threshold) |
897 | { | |
898 | struct per_pid *p; | |
899 | struct per_pidcomm *c; | |
900 | int count = 0; | |
901 | ||
bbe2987b AV |
902 | if (process_filter) |
903 | return determine_display_tasks_filtered(); | |
904 | ||
10274989 AV |
905 | p = all_data; |
906 | while (p) { | |
907 | p->display = 0; | |
908 | if (p->start_time == 1) | |
909 | p->start_time = first_time; | |
910 | ||
911 | /* no exit marker, task kept running to the end */ | |
912 | if (p->end_time == 0) | |
913 | p->end_time = last_time; | |
39a90a8e | 914 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
915 | p->display = 1; |
916 | ||
917 | c = p->all; | |
918 | ||
919 | while (c) { | |
920 | c->display = 0; | |
921 | ||
922 | if (c->start_time == 1) | |
923 | c->start_time = first_time; | |
924 | ||
39a90a8e | 925 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
926 | c->display = 1; |
927 | count++; | |
928 | } | |
929 | ||
930 | if (c->end_time == 0) | |
931 | c->end_time = last_time; | |
932 | ||
933 | c = c->next; | |
934 | } | |
935 | p = p->next; | |
936 | } | |
937 | return count; | |
938 | } | |
939 | ||
940 | ||
941 | ||
942 | #define TIME_THRESH 10000000 | |
943 | ||
944 | static void write_svg_file(const char *filename) | |
945 | { | |
946 | u64 i; | |
947 | int count; | |
948 | ||
949 | numcpus++; | |
950 | ||
951 | ||
952 | count = determine_display_tasks(TIME_THRESH); | |
953 | ||
954 | /* We'd like to show at least 15 tasks; be less picky if we have fewer */ | |
955 | if (count < 15) | |
956 | count = determine_display_tasks(TIME_THRESH / 10); | |
957 | ||
5094b655 | 958 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 959 | |
5094b655 | 960 | svg_time_grid(); |
10274989 AV |
961 | svg_legenda(); |
962 | ||
963 | for (i = 0; i < numcpus; i++) | |
964 | svg_cpu_box(i, max_freq, turbo_frequency); | |
965 | ||
966 | draw_cpu_usage(); | |
967 | draw_process_bars(); | |
968 | draw_c_p_states(); | |
969 | draw_wakeups(); | |
970 | ||
971 | svg_close(); | |
972 | } | |
973 | ||
70cb4e96 | 974 | static int __cmd_timechart(const char *output_name) |
5cbd0805 | 975 | { |
73bdc715 ACM |
976 | struct perf_tool perf_timechart = { |
977 | .comm = process_comm_event, | |
978 | .fork = process_fork_event, | |
979 | .exit = process_exit_event, | |
980 | .sample = process_sample_event, | |
981 | .ordered_samples = true, | |
982 | }; | |
5936678e JO |
983 | const struct perf_evsel_str_handler power_tracepoints[] = { |
984 | { "power:cpu_idle", process_sample_cpu_idle }, | |
985 | { "power:cpu_frequency", process_sample_cpu_frequency }, | |
986 | { "sched:sched_wakeup", process_sample_sched_wakeup }, | |
987 | { "sched:sched_switch", process_sample_sched_switch }, | |
988 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
989 | { "power:power_start", process_sample_power_start }, | |
990 | { "power:power_end", process_sample_power_end }, | |
991 | { "power:power_frequency", process_sample_power_frequency }, | |
992 | #endif | |
993 | }; | |
f5fc1412 JO |
994 | struct perf_data_file file = { |
995 | .path = input_name, | |
996 | .mode = PERF_DATA_MODE_READ, | |
997 | }; | |
998 | ||
999 | struct perf_session *session = perf_session__new(&file, false, | |
1000 | &perf_timechart); | |
d549c769 | 1001 | int ret = -EINVAL; |
10274989 | 1002 | |
94c744b6 ACM |
1003 | if (session == NULL) |
1004 | return -ENOMEM; | |
1005 | ||
d549c769 ACM |
1006 | if (!perf_session__has_traces(session, "timechart record")) |
1007 | goto out_delete; | |
1008 | ||
5936678e JO |
1009 | if (perf_session__set_tracepoints_handlers(session, |
1010 | power_tracepoints)) { | |
1011 | pr_err("Initializing session tracepoint handlers failed\n"); | |
1012 | goto out_delete; | |
1013 | } | |
1014 | ||
45694aa7 | 1015 | ret = perf_session__process_events(session, &perf_timechart); |
5cbd0805 | 1016 | if (ret) |
94c744b6 | 1017 | goto out_delete; |
10274989 | 1018 | |
10274989 AV |
1019 | end_sample_processing(); |
1020 | ||
1021 | sort_pids(); | |
1022 | ||
1023 | write_svg_file(output_name); | |
1024 | ||
6beba7ad ACM |
1025 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1026 | (last_time - first_time) / 1000000000.0, output_name); | |
94c744b6 ACM |
1027 | out_delete: |
1028 | perf_session__delete(session); | |
1029 | return ret; | |
10274989 AV |
1030 | } |
1031 | ||
3c09eebd AV |
1032 | static int __cmd_record(int argc, const char **argv) |
1033 | { | |
73bdc715 ACM |
1034 | #ifdef SUPPORT_OLD_POWER_EVENTS |
1035 | const char * const record_old_args[] = { | |
4a4d371a | 1036 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1037 | "-e", "power:power_start", |
1038 | "-e", "power:power_end", | |
1039 | "-e", "power:power_frequency", | |
1040 | "-e", "sched:sched_wakeup", | |
1041 | "-e", "sched:sched_switch", | |
1042 | }; | |
1043 | #endif | |
1044 | const char * const record_new_args[] = { | |
4a4d371a | 1045 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1046 | "-e", "power:cpu_frequency", |
1047 | "-e", "power:cpu_idle", | |
1048 | "-e", "sched:sched_wakeup", | |
1049 | "-e", "sched:sched_switch", | |
1050 | }; | |
3c09eebd AV |
1051 | unsigned int rec_argc, i, j; |
1052 | const char **rec_argv; | |
20c457b8 TR |
1053 | const char * const *record_args = record_new_args; |
1054 | unsigned int record_elems = ARRAY_SIZE(record_new_args); | |
1055 | ||
1056 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
1057 | if (!is_valid_tracepoint("power:cpu_idle") && | |
1058 | is_valid_tracepoint("power:power_start")) { | |
1059 | use_old_power_events = 1; | |
1060 | record_args = record_old_args; | |
1061 | record_elems = ARRAY_SIZE(record_old_args); | |
1062 | } | |
1063 | #endif | |
3c09eebd | 1064 | |
20c457b8 | 1065 | rec_argc = record_elems + argc - 1; |
3c09eebd AV |
1066 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1067 | ||
ce47dc56 CS |
1068 | if (rec_argv == NULL) |
1069 | return -ENOMEM; | |
1070 | ||
20c457b8 | 1071 | for (i = 0; i < record_elems; i++) |
3c09eebd AV |
1072 | rec_argv[i] = strdup(record_args[i]); |
1073 | ||
1074 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1075 | rec_argv[i] = argv[j]; | |
1076 | ||
1077 | return cmd_record(i, rec_argv, NULL); | |
1078 | } | |
1079 | ||
bbe2987b | 1080 | static int |
1d037ca1 IT |
1081 | parse_process(const struct option *opt __maybe_unused, const char *arg, |
1082 | int __maybe_unused unset) | |
bbe2987b AV |
1083 | { |
1084 | if (arg) | |
1085 | add_process_filter(arg); | |
1086 | return 0; | |
1087 | } | |
1088 | ||
73bdc715 ACM |
1089 | int cmd_timechart(int argc, const char **argv, |
1090 | const char *prefix __maybe_unused) | |
1091 | { | |
73bdc715 ACM |
1092 | const char *output_name = "output.svg"; |
1093 | const struct option options[] = { | |
1094 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
1095 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1096 | OPT_INTEGER('w', "width", &svg_page_width, "page width"), | |
1097 | OPT_BOOLEAN('P', "power-only", &power_only, "output power data only"), | |
bbe2987b AV |
1098 | OPT_CALLBACK('p', "process", NULL, "process", |
1099 | "process selector. Pass a pid or process name.", | |
1100 | parse_process), | |
ec5761ea DA |
1101 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
1102 | "Look for files with symbols relative to this directory"), | |
10274989 | 1103 | OPT_END() |
73bdc715 ACM |
1104 | }; |
1105 | const char * const timechart_usage[] = { | |
1106 | "perf timechart [<options>] {record}", | |
1107 | NULL | |
1108 | }; | |
10274989 | 1109 | |
3c09eebd AV |
1110 | argc = parse_options(argc, argv, options, timechart_usage, |
1111 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1112 | |
655000e7 ACM |
1113 | symbol__init(); |
1114 | ||
3c09eebd AV |
1115 | if (argc && !strncmp(argv[0], "rec", 3)) |
1116 | return __cmd_record(argc, argv); | |
1117 | else if (argc) | |
1118 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1119 | |
1120 | setup_pager(); | |
1121 | ||
70cb4e96 | 1122 | return __cmd_timechart(output_name); |
10274989 | 1123 | } |