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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 | ||
15 | #include "builtin.h" | |
16 | ||
17 | #include "util/util.h" | |
18 | ||
19 | #include "util/color.h" | |
20 | #include <linux/list.h> | |
21 | #include "util/cache.h" | |
22 | #include <linux/rbtree.h> | |
23 | #include "util/symbol.h" | |
24 | #include "util/string.h" | |
25 | #include "util/callchain.h" | |
26 | #include "util/strlist.h" | |
27 | ||
28 | #include "perf.h" | |
29 | #include "util/header.h" | |
30 | #include "util/parse-options.h" | |
31 | #include "util/parse-events.h" | |
5cbd0805 LZ |
32 | #include "util/event.h" |
33 | #include "util/data_map.h" | |
10274989 AV |
34 | #include "util/svghelper.h" |
35 | ||
36 | static char const *input_name = "perf.data"; | |
37 | static char const *output_name = "output.svg"; | |
38 | ||
39 | ||
10274989 AV |
40 | static u64 sample_type; |
41 | ||
42 | static unsigned int numcpus; | |
43 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
44 | static u64 max_freq; /* Highest CPU frequency seen */ | |
45 | static u64 turbo_frequency; | |
46 | ||
47 | static u64 first_time, last_time; | |
48 | ||
39a90a8e AV |
49 | static int power_only; |
50 | ||
10274989 | 51 | |
10274989 AV |
52 | struct per_pid; |
53 | struct per_pidcomm; | |
54 | ||
55 | struct cpu_sample; | |
56 | struct power_event; | |
57 | struct wake_event; | |
58 | ||
59 | struct sample_wrapper; | |
60 | ||
61 | /* | |
62 | * Datastructure layout: | |
63 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
64 | * Each "pid" entry, has a list of "comm"s. | |
65 | * this is because we want to track different programs different, while | |
66 | * exec will reuse the original pid (by design). | |
67 | * Each comm has a list of samples that will be used to draw | |
68 | * final graph. | |
69 | */ | |
70 | ||
71 | struct per_pid { | |
72 | struct per_pid *next; | |
73 | ||
74 | int pid; | |
75 | int ppid; | |
76 | ||
77 | u64 start_time; | |
78 | u64 end_time; | |
79 | u64 total_time; | |
80 | int display; | |
81 | ||
82 | struct per_pidcomm *all; | |
83 | struct per_pidcomm *current; | |
84 | ||
85 | int painted; | |
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 | ||
152 | struct sample_wrapper *all_samples; | |
153 | ||
bbe2987b AV |
154 | |
155 | struct process_filter; | |
156 | struct process_filter { | |
5cbd0805 LZ |
157 | char *name; |
158 | int pid; | |
159 | struct process_filter *next; | |
bbe2987b AV |
160 | }; |
161 | ||
162 | static struct process_filter *process_filter; | |
163 | ||
164 | ||
10274989 AV |
165 | static struct per_pid *find_create_pid(int pid) |
166 | { | |
167 | struct per_pid *cursor = all_data; | |
168 | ||
169 | while (cursor) { | |
170 | if (cursor->pid == pid) | |
171 | return cursor; | |
172 | cursor = cursor->next; | |
173 | } | |
174 | cursor = malloc(sizeof(struct per_pid)); | |
175 | assert(cursor != NULL); | |
176 | memset(cursor, 0, sizeof(struct per_pid)); | |
177 | cursor->pid = pid; | |
178 | cursor->next = all_data; | |
179 | all_data = cursor; | |
180 | return cursor; | |
181 | } | |
182 | ||
183 | static void pid_set_comm(int pid, char *comm) | |
184 | { | |
185 | struct per_pid *p; | |
186 | struct per_pidcomm *c; | |
187 | p = find_create_pid(pid); | |
188 | c = p->all; | |
189 | while (c) { | |
190 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
191 | p->current = c; | |
192 | return; | |
193 | } | |
194 | if (!c->comm) { | |
195 | c->comm = strdup(comm); | |
196 | p->current = c; | |
197 | return; | |
198 | } | |
199 | c = c->next; | |
200 | } | |
201 | c = malloc(sizeof(struct per_pidcomm)); | |
202 | assert(c != NULL); | |
203 | memset(c, 0, sizeof(struct per_pidcomm)); | |
204 | c->comm = strdup(comm); | |
205 | p->current = c; | |
206 | c->next = p->all; | |
207 | p->all = c; | |
208 | } | |
209 | ||
210 | static void pid_fork(int pid, int ppid, u64 timestamp) | |
211 | { | |
212 | struct per_pid *p, *pp; | |
213 | p = find_create_pid(pid); | |
214 | pp = find_create_pid(ppid); | |
215 | p->ppid = ppid; | |
216 | if (pp->current && pp->current->comm && !p->current) | |
217 | pid_set_comm(pid, pp->current->comm); | |
218 | ||
219 | p->start_time = timestamp; | |
220 | if (p->current) { | |
221 | p->current->start_time = timestamp; | |
222 | p->current->state_since = timestamp; | |
223 | } | |
224 | } | |
225 | ||
226 | static void pid_exit(int pid, u64 timestamp) | |
227 | { | |
228 | struct per_pid *p; | |
229 | p = find_create_pid(pid); | |
230 | p->end_time = timestamp; | |
231 | if (p->current) | |
232 | p->current->end_time = timestamp; | |
233 | } | |
234 | ||
235 | static void | |
236 | pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end) | |
237 | { | |
238 | struct per_pid *p; | |
239 | struct per_pidcomm *c; | |
240 | struct cpu_sample *sample; | |
241 | ||
242 | p = find_create_pid(pid); | |
243 | c = p->current; | |
244 | if (!c) { | |
245 | c = malloc(sizeof(struct per_pidcomm)); | |
246 | assert(c != NULL); | |
247 | memset(c, 0, sizeof(struct per_pidcomm)); | |
248 | p->current = c; | |
249 | c->next = p->all; | |
250 | p->all = c; | |
251 | } | |
252 | ||
253 | sample = malloc(sizeof(struct cpu_sample)); | |
254 | assert(sample != NULL); | |
255 | memset(sample, 0, sizeof(struct cpu_sample)); | |
256 | sample->start_time = start; | |
257 | sample->end_time = end; | |
258 | sample->type = type; | |
259 | sample->next = c->samples; | |
260 | sample->cpu = cpu; | |
261 | c->samples = sample; | |
262 | ||
263 | if (sample->type == TYPE_RUNNING && end > start && start > 0) { | |
264 | c->total_time += (end-start); | |
265 | p->total_time += (end-start); | |
266 | } | |
267 | ||
268 | if (c->start_time == 0 || c->start_time > start) | |
269 | c->start_time = start; | |
270 | if (p->start_time == 0 || p->start_time > start) | |
271 | p->start_time = start; | |
272 | ||
273 | if (cpu > numcpus) | |
274 | numcpus = cpu; | |
275 | } | |
276 | ||
277 | #define MAX_CPUS 4096 | |
278 | ||
279 | static u64 cpus_cstate_start_times[MAX_CPUS]; | |
280 | static int cpus_cstate_state[MAX_CPUS]; | |
281 | static u64 cpus_pstate_start_times[MAX_CPUS]; | |
282 | static u64 cpus_pstate_state[MAX_CPUS]; | |
283 | ||
284 | static int | |
285 | process_comm_event(event_t *event) | |
286 | { | |
287 | pid_set_comm(event->comm.pid, event->comm.comm); | |
288 | return 0; | |
289 | } | |
290 | static int | |
291 | process_fork_event(event_t *event) | |
292 | { | |
293 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int | |
298 | process_exit_event(event_t *event) | |
299 | { | |
300 | pid_exit(event->fork.pid, event->fork.time); | |
301 | return 0; | |
302 | } | |
303 | ||
304 | struct trace_entry { | |
305 | u32 size; | |
306 | unsigned short type; | |
307 | unsigned char flags; | |
308 | unsigned char preempt_count; | |
309 | int pid; | |
310 | int tgid; | |
311 | }; | |
312 | ||
313 | struct power_entry { | |
314 | struct trace_entry te; | |
315 | s64 type; | |
316 | s64 value; | |
317 | }; | |
318 | ||
319 | #define TASK_COMM_LEN 16 | |
320 | struct wakeup_entry { | |
321 | struct trace_entry te; | |
322 | char comm[TASK_COMM_LEN]; | |
323 | int pid; | |
324 | int prio; | |
325 | int success; | |
326 | }; | |
327 | ||
328 | /* | |
329 | * trace_flag_type is an enumeration that holds different | |
330 | * states when a trace occurs. These are: | |
331 | * IRQS_OFF - interrupts were disabled | |
332 | * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags | |
333 | * NEED_RESCED - reschedule is requested | |
334 | * HARDIRQ - inside an interrupt handler | |
335 | * SOFTIRQ - inside a softirq handler | |
336 | */ | |
337 | enum trace_flag_type { | |
338 | TRACE_FLAG_IRQS_OFF = 0x01, | |
339 | TRACE_FLAG_IRQS_NOSUPPORT = 0x02, | |
340 | TRACE_FLAG_NEED_RESCHED = 0x04, | |
341 | TRACE_FLAG_HARDIRQ = 0x08, | |
342 | TRACE_FLAG_SOFTIRQ = 0x10, | |
343 | }; | |
344 | ||
345 | ||
346 | ||
347 | struct sched_switch { | |
348 | struct trace_entry te; | |
349 | char prev_comm[TASK_COMM_LEN]; | |
350 | int prev_pid; | |
351 | int prev_prio; | |
352 | long prev_state; /* Arjan weeps. */ | |
353 | char next_comm[TASK_COMM_LEN]; | |
354 | int next_pid; | |
355 | int next_prio; | |
356 | }; | |
357 | ||
358 | static void c_state_start(int cpu, u64 timestamp, int state) | |
359 | { | |
360 | cpus_cstate_start_times[cpu] = timestamp; | |
361 | cpus_cstate_state[cpu] = state; | |
362 | } | |
363 | ||
364 | static void c_state_end(int cpu, u64 timestamp) | |
365 | { | |
366 | struct power_event *pwr; | |
367 | pwr = malloc(sizeof(struct power_event)); | |
368 | if (!pwr) | |
369 | return; | |
370 | memset(pwr, 0, sizeof(struct power_event)); | |
371 | ||
372 | pwr->state = cpus_cstate_state[cpu]; | |
373 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
374 | pwr->end_time = timestamp; | |
375 | pwr->cpu = cpu; | |
376 | pwr->type = CSTATE; | |
377 | pwr->next = power_events; | |
378 | ||
379 | power_events = pwr; | |
380 | } | |
381 | ||
382 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
383 | { | |
384 | struct power_event *pwr; | |
385 | pwr = malloc(sizeof(struct power_event)); | |
386 | ||
387 | if (new_freq > 8000000) /* detect invalid data */ | |
388 | return; | |
389 | ||
390 | if (!pwr) | |
391 | return; | |
392 | memset(pwr, 0, sizeof(struct power_event)); | |
393 | ||
394 | pwr->state = cpus_pstate_state[cpu]; | |
395 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
396 | pwr->end_time = timestamp; | |
397 | pwr->cpu = cpu; | |
398 | pwr->type = PSTATE; | |
399 | pwr->next = power_events; | |
400 | ||
401 | if (!pwr->start_time) | |
402 | pwr->start_time = first_time; | |
403 | ||
404 | power_events = pwr; | |
405 | ||
406 | cpus_pstate_state[cpu] = new_freq; | |
407 | cpus_pstate_start_times[cpu] = timestamp; | |
408 | ||
409 | if ((u64)new_freq > max_freq) | |
410 | max_freq = new_freq; | |
411 | ||
412 | if (new_freq < min_freq || min_freq == 0) | |
413 | min_freq = new_freq; | |
414 | ||
415 | if (new_freq == max_freq - 1000) | |
416 | turbo_frequency = max_freq; | |
417 | } | |
418 | ||
419 | static void | |
420 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
421 | { | |
422 | struct wake_event *we; | |
423 | struct per_pid *p; | |
424 | struct wakeup_entry *wake = (void *)te; | |
425 | ||
426 | we = malloc(sizeof(struct wake_event)); | |
427 | if (!we) | |
428 | return; | |
429 | ||
430 | memset(we, 0, sizeof(struct wake_event)); | |
431 | we->time = timestamp; | |
432 | we->waker = pid; | |
433 | ||
434 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
435 | we->waker = -1; | |
436 | ||
437 | we->wakee = wake->pid; | |
438 | we->next = wake_events; | |
439 | wake_events = we; | |
440 | p = find_create_pid(we->wakee); | |
441 | ||
442 | if (p && p->current && p->current->state == TYPE_NONE) { | |
443 | p->current->state_since = timestamp; | |
444 | p->current->state = TYPE_WAITING; | |
445 | } | |
446 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
447 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
448 | p->current->state_since = timestamp; | |
449 | p->current->state = TYPE_WAITING; | |
450 | } | |
451 | } | |
452 | ||
453 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
454 | { | |
455 | struct per_pid *p = NULL, *prev_p; | |
456 | struct sched_switch *sw = (void *)te; | |
457 | ||
458 | ||
459 | prev_p = find_create_pid(sw->prev_pid); | |
460 | ||
461 | p = find_create_pid(sw->next_pid); | |
462 | ||
463 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
464 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
465 | if (p && p->current) { | |
466 | if (p->current->state != TYPE_NONE) | |
467 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
468 | ||
469 | p->current->state_since = timestamp; | |
470 | p->current->state = TYPE_RUNNING; | |
471 | } | |
472 | ||
473 | if (prev_p->current) { | |
474 | prev_p->current->state = TYPE_NONE; | |
475 | prev_p->current->state_since = timestamp; | |
476 | if (sw->prev_state & 2) | |
477 | prev_p->current->state = TYPE_BLOCKED; | |
478 | if (sw->prev_state == 0) | |
479 | prev_p->current->state = TYPE_WAITING; | |
480 | } | |
481 | } | |
482 | ||
483 | ||
484 | static int | |
485 | process_sample_event(event_t *event) | |
486 | { | |
487 | int cursor = 0; | |
488 | u64 addr = 0; | |
489 | u64 stamp = 0; | |
490 | u32 cpu = 0; | |
491 | u32 pid = 0; | |
492 | struct trace_entry *te; | |
493 | ||
494 | if (sample_type & PERF_SAMPLE_IP) | |
495 | cursor++; | |
496 | ||
497 | if (sample_type & PERF_SAMPLE_TID) { | |
498 | pid = event->sample.array[cursor]>>32; | |
499 | cursor++; | |
500 | } | |
501 | if (sample_type & PERF_SAMPLE_TIME) { | |
502 | stamp = event->sample.array[cursor++]; | |
503 | ||
504 | if (!first_time || first_time > stamp) | |
505 | first_time = stamp; | |
506 | if (last_time < stamp) | |
507 | last_time = stamp; | |
508 | ||
509 | } | |
510 | if (sample_type & PERF_SAMPLE_ADDR) | |
511 | addr = event->sample.array[cursor++]; | |
512 | if (sample_type & PERF_SAMPLE_ID) | |
513 | cursor++; | |
514 | if (sample_type & PERF_SAMPLE_STREAM_ID) | |
515 | cursor++; | |
516 | if (sample_type & PERF_SAMPLE_CPU) | |
517 | cpu = event->sample.array[cursor++] & 0xFFFFFFFF; | |
518 | if (sample_type & PERF_SAMPLE_PERIOD) | |
519 | cursor++; | |
520 | ||
521 | te = (void *)&event->sample.array[cursor]; | |
522 | ||
523 | if (sample_type & PERF_SAMPLE_RAW && te->size > 0) { | |
524 | char *event_str; | |
525 | struct power_entry *pe; | |
526 | ||
527 | pe = (void *)te; | |
528 | ||
529 | event_str = perf_header__find_event(te->type); | |
530 | ||
531 | if (!event_str) | |
532 | return 0; | |
533 | ||
534 | if (strcmp(event_str, "power:power_start") == 0) | |
535 | c_state_start(cpu, stamp, pe->value); | |
536 | ||
537 | if (strcmp(event_str, "power:power_end") == 0) | |
538 | c_state_end(cpu, stamp); | |
539 | ||
540 | if (strcmp(event_str, "power:power_frequency") == 0) | |
541 | p_state_change(cpu, stamp, pe->value); | |
542 | ||
543 | if (strcmp(event_str, "sched:sched_wakeup") == 0) | |
544 | sched_wakeup(cpu, stamp, pid, te); | |
545 | ||
546 | if (strcmp(event_str, "sched:sched_switch") == 0) | |
547 | sched_switch(cpu, stamp, te); | |
548 | } | |
549 | return 0; | |
550 | } | |
551 | ||
552 | /* | |
553 | * After the last sample we need to wrap up the current C/P state | |
554 | * and close out each CPU for these. | |
555 | */ | |
556 | static void end_sample_processing(void) | |
557 | { | |
558 | u64 cpu; | |
559 | struct power_event *pwr; | |
560 | ||
39a90a8e | 561 | for (cpu = 0; cpu <= numcpus; cpu++) { |
10274989 AV |
562 | pwr = malloc(sizeof(struct power_event)); |
563 | if (!pwr) | |
564 | return; | |
565 | memset(pwr, 0, sizeof(struct power_event)); | |
566 | ||
567 | /* C state */ | |
568 | #if 0 | |
569 | pwr->state = cpus_cstate_state[cpu]; | |
570 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
571 | pwr->end_time = last_time; | |
572 | pwr->cpu = cpu; | |
573 | pwr->type = CSTATE; | |
574 | pwr->next = power_events; | |
575 | ||
576 | power_events = pwr; | |
577 | #endif | |
578 | /* P state */ | |
579 | ||
580 | pwr = malloc(sizeof(struct power_event)); | |
581 | if (!pwr) | |
582 | return; | |
583 | memset(pwr, 0, sizeof(struct power_event)); | |
584 | ||
585 | pwr->state = cpus_pstate_state[cpu]; | |
586 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
587 | pwr->end_time = last_time; | |
588 | pwr->cpu = cpu; | |
589 | pwr->type = PSTATE; | |
590 | pwr->next = power_events; | |
591 | ||
592 | if (!pwr->start_time) | |
593 | pwr->start_time = first_time; | |
594 | if (!pwr->state) | |
595 | pwr->state = min_freq; | |
596 | power_events = pwr; | |
597 | } | |
598 | } | |
599 | ||
600 | static u64 sample_time(event_t *event) | |
601 | { | |
602 | int cursor; | |
603 | ||
604 | cursor = 0; | |
605 | if (sample_type & PERF_SAMPLE_IP) | |
606 | cursor++; | |
607 | if (sample_type & PERF_SAMPLE_TID) | |
608 | cursor++; | |
609 | if (sample_type & PERF_SAMPLE_TIME) | |
610 | return event->sample.array[cursor]; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | ||
615 | /* | |
616 | * We first queue all events, sorted backwards by insertion. | |
617 | * The order will get flipped later. | |
618 | */ | |
619 | static int | |
620 | queue_sample_event(event_t *event) | |
621 | { | |
622 | struct sample_wrapper *copy, *prev; | |
623 | int size; | |
624 | ||
625 | size = event->sample.header.size + sizeof(struct sample_wrapper) + 8; | |
626 | ||
627 | copy = malloc(size); | |
628 | if (!copy) | |
629 | return 1; | |
630 | ||
631 | memset(copy, 0, size); | |
632 | ||
633 | copy->next = NULL; | |
634 | copy->timestamp = sample_time(event); | |
635 | ||
636 | memcpy(©->data, event, event->sample.header.size); | |
637 | ||
638 | /* insert in the right place in the list */ | |
639 | ||
640 | if (!all_samples) { | |
641 | /* first sample ever */ | |
642 | all_samples = copy; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | if (all_samples->timestamp < copy->timestamp) { | |
647 | /* insert at the head of the list */ | |
648 | copy->next = all_samples; | |
649 | all_samples = copy; | |
650 | return 0; | |
651 | } | |
652 | ||
653 | prev = all_samples; | |
654 | while (prev->next) { | |
655 | if (prev->next->timestamp < copy->timestamp) { | |
656 | copy->next = prev->next; | |
657 | prev->next = copy; | |
658 | return 0; | |
659 | } | |
660 | prev = prev->next; | |
661 | } | |
662 | /* insert at the end of the list */ | |
663 | prev->next = copy; | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static void sort_queued_samples(void) | |
669 | { | |
670 | struct sample_wrapper *cursor, *next; | |
671 | ||
672 | cursor = all_samples; | |
673 | all_samples = NULL; | |
674 | ||
675 | while (cursor) { | |
676 | next = cursor->next; | |
677 | cursor->next = all_samples; | |
678 | all_samples = cursor; | |
679 | cursor = next; | |
680 | } | |
681 | } | |
682 | ||
683 | /* | |
684 | * Sort the pid datastructure | |
685 | */ | |
686 | static void sort_pids(void) | |
687 | { | |
688 | struct per_pid *new_list, *p, *cursor, *prev; | |
689 | /* sort by ppid first, then by pid, lowest to highest */ | |
690 | ||
691 | new_list = NULL; | |
692 | ||
693 | while (all_data) { | |
694 | p = all_data; | |
695 | all_data = p->next; | |
696 | p->next = NULL; | |
697 | ||
698 | if (new_list == NULL) { | |
699 | new_list = p; | |
700 | p->next = NULL; | |
701 | continue; | |
702 | } | |
703 | prev = NULL; | |
704 | cursor = new_list; | |
705 | while (cursor) { | |
706 | if (cursor->ppid > p->ppid || | |
707 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
708 | /* must insert before */ | |
709 | if (prev) { | |
710 | p->next = prev->next; | |
711 | prev->next = p; | |
712 | cursor = NULL; | |
713 | continue; | |
714 | } else { | |
715 | p->next = new_list; | |
716 | new_list = p; | |
717 | cursor = NULL; | |
718 | continue; | |
719 | } | |
720 | } | |
721 | ||
722 | prev = cursor; | |
723 | cursor = cursor->next; | |
724 | if (!cursor) | |
725 | prev->next = p; | |
726 | } | |
727 | } | |
728 | all_data = new_list; | |
729 | } | |
730 | ||
731 | ||
732 | static void draw_c_p_states(void) | |
733 | { | |
734 | struct power_event *pwr; | |
735 | pwr = power_events; | |
736 | ||
737 | /* | |
738 | * two pass drawing so that the P state bars are on top of the C state blocks | |
739 | */ | |
740 | while (pwr) { | |
741 | if (pwr->type == CSTATE) | |
742 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
743 | pwr = pwr->next; | |
744 | } | |
745 | ||
746 | pwr = power_events; | |
747 | while (pwr) { | |
748 | if (pwr->type == PSTATE) { | |
749 | if (!pwr->state) | |
750 | pwr->state = min_freq; | |
751 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
752 | } | |
753 | pwr = pwr->next; | |
754 | } | |
755 | } | |
756 | ||
757 | static void draw_wakeups(void) | |
758 | { | |
759 | struct wake_event *we; | |
760 | struct per_pid *p; | |
761 | struct per_pidcomm *c; | |
762 | ||
763 | we = wake_events; | |
764 | while (we) { | |
765 | int from = 0, to = 0; | |
4f1202c8 | 766 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
767 | |
768 | /* locate the column of the waker and wakee */ | |
769 | p = all_data; | |
770 | while (p) { | |
771 | if (p->pid == we->waker || p->pid == we->wakee) { | |
772 | c = p->all; | |
773 | while (c) { | |
774 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 775 | if (p->pid == we->waker && !from) { |
10274989 | 776 | from = c->Y; |
3bc2a39c | 777 | task_from = strdup(c->comm); |
4f1202c8 | 778 | } |
bbe2987b | 779 | if (p->pid == we->wakee && !to) { |
10274989 | 780 | to = c->Y; |
3bc2a39c | 781 | task_to = strdup(c->comm); |
4f1202c8 | 782 | } |
10274989 AV |
783 | } |
784 | c = c->next; | |
785 | } | |
3bc2a39c AV |
786 | c = p->all; |
787 | while (c) { | |
788 | if (p->pid == we->waker && !from) { | |
789 | from = c->Y; | |
790 | task_from = strdup(c->comm); | |
791 | } | |
792 | if (p->pid == we->wakee && !to) { | |
793 | to = c->Y; | |
794 | task_to = strdup(c->comm); | |
795 | } | |
796 | c = c->next; | |
797 | } | |
10274989 AV |
798 | } |
799 | p = p->next; | |
800 | } | |
801 | ||
3bc2a39c AV |
802 | if (!task_from) { |
803 | task_from = malloc(40); | |
804 | sprintf(task_from, "[%i]", we->waker); | |
805 | } | |
806 | if (!task_to) { | |
807 | task_to = malloc(40); | |
808 | sprintf(task_to, "[%i]", we->wakee); | |
809 | } | |
810 | ||
10274989 AV |
811 | if (we->waker == -1) |
812 | svg_interrupt(we->time, to); | |
813 | else if (from && to && abs(from - to) == 1) | |
814 | svg_wakeline(we->time, from, to); | |
815 | else | |
4f1202c8 | 816 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 817 | we = we->next; |
3bc2a39c AV |
818 | |
819 | free(task_from); | |
820 | free(task_to); | |
10274989 AV |
821 | } |
822 | } | |
823 | ||
824 | static void draw_cpu_usage(void) | |
825 | { | |
826 | struct per_pid *p; | |
827 | struct per_pidcomm *c; | |
828 | struct cpu_sample *sample; | |
829 | p = all_data; | |
830 | while (p) { | |
831 | c = p->all; | |
832 | while (c) { | |
833 | sample = c->samples; | |
834 | while (sample) { | |
835 | if (sample->type == TYPE_RUNNING) | |
836 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
837 | ||
838 | sample = sample->next; | |
839 | } | |
840 | c = c->next; | |
841 | } | |
842 | p = p->next; | |
843 | } | |
844 | } | |
845 | ||
846 | static void draw_process_bars(void) | |
847 | { | |
848 | struct per_pid *p; | |
849 | struct per_pidcomm *c; | |
850 | struct cpu_sample *sample; | |
851 | int Y = 0; | |
852 | ||
853 | Y = 2 * numcpus + 2; | |
854 | ||
855 | p = all_data; | |
856 | while (p) { | |
857 | c = p->all; | |
858 | while (c) { | |
859 | if (!c->display) { | |
860 | c->Y = 0; | |
861 | c = c->next; | |
862 | continue; | |
863 | } | |
864 | ||
a92fe7b3 | 865 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
866 | sample = c->samples; |
867 | while (sample) { | |
868 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 869 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
870 | if (sample->type == TYPE_BLOCKED) |
871 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
872 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 873 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
874 | sample = sample->next; |
875 | } | |
876 | ||
877 | if (c->comm) { | |
878 | char comm[256]; | |
879 | if (c->total_time > 5000000000) /* 5 seconds */ | |
880 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
881 | else | |
882 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
883 | ||
884 | svg_text(Y, c->start_time, comm); | |
885 | } | |
886 | c->Y = Y; | |
887 | Y++; | |
888 | c = c->next; | |
889 | } | |
890 | p = p->next; | |
891 | } | |
892 | } | |
893 | ||
bbe2987b AV |
894 | static void add_process_filter(const char *string) |
895 | { | |
896 | struct process_filter *filt; | |
897 | int pid; | |
898 | ||
899 | pid = strtoull(string, NULL, 10); | |
900 | filt = malloc(sizeof(struct process_filter)); | |
901 | if (!filt) | |
902 | return; | |
903 | ||
904 | filt->name = strdup(string); | |
905 | filt->pid = pid; | |
906 | filt->next = process_filter; | |
907 | ||
908 | process_filter = filt; | |
909 | } | |
910 | ||
911 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
912 | { | |
913 | struct process_filter *filt; | |
914 | if (!process_filter) | |
915 | return 1; | |
916 | ||
917 | filt = process_filter; | |
918 | while (filt) { | |
919 | if (filt->pid && p->pid == filt->pid) | |
920 | return 1; | |
921 | if (strcmp(filt->name, c->comm) == 0) | |
922 | return 1; | |
923 | filt = filt->next; | |
924 | } | |
925 | return 0; | |
926 | } | |
927 | ||
928 | static int determine_display_tasks_filtered(void) | |
929 | { | |
930 | struct per_pid *p; | |
931 | struct per_pidcomm *c; | |
932 | int count = 0; | |
933 | ||
934 | p = all_data; | |
935 | while (p) { | |
936 | p->display = 0; | |
937 | if (p->start_time == 1) | |
938 | p->start_time = first_time; | |
939 | ||
940 | /* no exit marker, task kept running to the end */ | |
941 | if (p->end_time == 0) | |
942 | p->end_time = last_time; | |
943 | ||
944 | c = p->all; | |
945 | ||
946 | while (c) { | |
947 | c->display = 0; | |
948 | ||
949 | if (c->start_time == 1) | |
950 | c->start_time = first_time; | |
951 | ||
952 | if (passes_filter(p, c)) { | |
953 | c->display = 1; | |
954 | p->display = 1; | |
955 | count++; | |
956 | } | |
957 | ||
958 | if (c->end_time == 0) | |
959 | c->end_time = last_time; | |
960 | ||
961 | c = c->next; | |
962 | } | |
963 | p = p->next; | |
964 | } | |
965 | return count; | |
966 | } | |
967 | ||
10274989 AV |
968 | static int determine_display_tasks(u64 threshold) |
969 | { | |
970 | struct per_pid *p; | |
971 | struct per_pidcomm *c; | |
972 | int count = 0; | |
973 | ||
bbe2987b AV |
974 | if (process_filter) |
975 | return determine_display_tasks_filtered(); | |
976 | ||
10274989 AV |
977 | p = all_data; |
978 | while (p) { | |
979 | p->display = 0; | |
980 | if (p->start_time == 1) | |
981 | p->start_time = first_time; | |
982 | ||
983 | /* no exit marker, task kept running to the end */ | |
984 | if (p->end_time == 0) | |
985 | p->end_time = last_time; | |
39a90a8e | 986 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
987 | p->display = 1; |
988 | ||
989 | c = p->all; | |
990 | ||
991 | while (c) { | |
992 | c->display = 0; | |
993 | ||
994 | if (c->start_time == 1) | |
995 | c->start_time = first_time; | |
996 | ||
39a90a8e | 997 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
998 | c->display = 1; |
999 | count++; | |
1000 | } | |
1001 | ||
1002 | if (c->end_time == 0) | |
1003 | c->end_time = last_time; | |
1004 | ||
1005 | c = c->next; | |
1006 | } | |
1007 | p = p->next; | |
1008 | } | |
1009 | return count; | |
1010 | } | |
1011 | ||
1012 | ||
1013 | ||
1014 | #define TIME_THRESH 10000000 | |
1015 | ||
1016 | static void write_svg_file(const char *filename) | |
1017 | { | |
1018 | u64 i; | |
1019 | int count; | |
1020 | ||
1021 | numcpus++; | |
1022 | ||
1023 | ||
1024 | count = determine_display_tasks(TIME_THRESH); | |
1025 | ||
1026 | /* We'd like to show at least 15 tasks; be less picky if we have fewer */ | |
1027 | if (count < 15) | |
1028 | count = determine_display_tasks(TIME_THRESH / 10); | |
1029 | ||
5094b655 | 1030 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 1031 | |
5094b655 | 1032 | svg_time_grid(); |
10274989 AV |
1033 | svg_legenda(); |
1034 | ||
1035 | for (i = 0; i < numcpus; i++) | |
1036 | svg_cpu_box(i, max_freq, turbo_frequency); | |
1037 | ||
1038 | draw_cpu_usage(); | |
1039 | draw_process_bars(); | |
1040 | draw_c_p_states(); | |
1041 | draw_wakeups(); | |
1042 | ||
1043 | svg_close(); | |
1044 | } | |
1045 | ||
10274989 AV |
1046 | static void process_samples(void) |
1047 | { | |
1048 | struct sample_wrapper *cursor; | |
1049 | event_t *event; | |
1050 | ||
1051 | sort_queued_samples(); | |
1052 | ||
1053 | cursor = all_samples; | |
1054 | while (cursor) { | |
1055 | event = (void *)&cursor->data; | |
1056 | cursor = cursor->next; | |
1057 | process_sample_event(event); | |
1058 | } | |
1059 | } | |
1060 | ||
5cbd0805 | 1061 | static int sample_type_check(u64 type) |
10274989 | 1062 | { |
5cbd0805 | 1063 | sample_type = type; |
10274989 | 1064 | |
5cbd0805 LZ |
1065 | if (!(sample_type & PERF_SAMPLE_RAW)) { |
1066 | fprintf(stderr, "No trace samples found in the file.\n" | |
1067 | "Have you used 'perf timechart record' to record it?\n"); | |
1068 | return -1; | |
10274989 AV |
1069 | } |
1070 | ||
5cbd0805 LZ |
1071 | return 0; |
1072 | } | |
10274989 | 1073 | |
5cbd0805 LZ |
1074 | static struct perf_file_handler file_handler = { |
1075 | .process_comm_event = process_comm_event, | |
1076 | .process_fork_event = process_fork_event, | |
1077 | .process_exit_event = process_exit_event, | |
1078 | .process_sample_event = queue_sample_event, | |
1079 | .sample_type_check = sample_type_check, | |
1080 | }; | |
10274989 | 1081 | |
5cbd0805 LZ |
1082 | static int __cmd_timechart(void) |
1083 | { | |
1084 | struct perf_header *header; | |
1085 | int ret; | |
10274989 | 1086 | |
5cbd0805 | 1087 | register_perf_file_handler(&file_handler); |
10274989 | 1088 | |
5cbd0805 LZ |
1089 | ret = mmap_dispatch_perf_file(&header, input_name, 0, 0, |
1090 | &event__cwdlen, &event__cwd); | |
1091 | if (ret) | |
1092 | return EXIT_FAILURE; | |
10274989 AV |
1093 | |
1094 | process_samples(); | |
1095 | ||
1096 | end_sample_processing(); | |
1097 | ||
1098 | sort_pids(); | |
1099 | ||
1100 | write_svg_file(output_name); | |
1101 | ||
6beba7ad ACM |
1102 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1103 | (last_time - first_time) / 1000000000.0, output_name); | |
10274989 | 1104 | |
5cbd0805 | 1105 | return EXIT_SUCCESS; |
10274989 AV |
1106 | } |
1107 | ||
3c09eebd AV |
1108 | static const char * const timechart_usage[] = { |
1109 | "perf timechart [<options>] {record}", | |
10274989 AV |
1110 | NULL |
1111 | }; | |
1112 | ||
3c09eebd AV |
1113 | static const char *record_args[] = { |
1114 | "record", | |
1115 | "-a", | |
1116 | "-R", | |
1117 | "-M", | |
1118 | "-f", | |
1119 | "-c", "1", | |
1120 | "-e", "power:power_start", | |
1121 | "-e", "power:power_end", | |
1122 | "-e", "power:power_frequency", | |
1123 | "-e", "sched:sched_wakeup", | |
1124 | "-e", "sched:sched_switch", | |
1125 | }; | |
1126 | ||
1127 | static int __cmd_record(int argc, const char **argv) | |
1128 | { | |
1129 | unsigned int rec_argc, i, j; | |
1130 | const char **rec_argv; | |
1131 | ||
1132 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; | |
1133 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1134 | ||
1135 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1136 | rec_argv[i] = strdup(record_args[i]); | |
1137 | ||
1138 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1139 | rec_argv[i] = argv[j]; | |
1140 | ||
1141 | return cmd_record(i, rec_argv, NULL); | |
1142 | } | |
1143 | ||
bbe2987b AV |
1144 | static int |
1145 | parse_process(const struct option *opt __used, const char *arg, int __used unset) | |
1146 | { | |
1147 | if (arg) | |
1148 | add_process_filter(arg); | |
1149 | return 0; | |
1150 | } | |
1151 | ||
10274989 AV |
1152 | static const struct option options[] = { |
1153 | OPT_STRING('i', "input", &input_name, "file", | |
1154 | "input file name"), | |
1155 | OPT_STRING('o', "output", &output_name, "file", | |
1156 | "output file name"), | |
5094b655 AV |
1157 | OPT_INTEGER('w', "width", &svg_page_width, |
1158 | "page width"), | |
bbe2987b | 1159 | OPT_BOOLEAN('P', "power-only", &power_only, |
39a90a8e | 1160 | "output power data only"), |
bbe2987b AV |
1161 | OPT_CALLBACK('p', "process", NULL, "process", |
1162 | "process selector. Pass a pid or process name.", | |
1163 | parse_process), | |
10274989 AV |
1164 | OPT_END() |
1165 | }; | |
1166 | ||
1167 | ||
1168 | int cmd_timechart(int argc, const char **argv, const char *prefix __used) | |
1169 | { | |
00a192b3 | 1170 | symbol__init(0); |
10274989 | 1171 | |
3c09eebd AV |
1172 | argc = parse_options(argc, argv, options, timechart_usage, |
1173 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1174 | |
3c09eebd AV |
1175 | if (argc && !strncmp(argv[0], "rec", 3)) |
1176 | return __cmd_record(argc, argv); | |
1177 | else if (argc) | |
1178 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1179 | |
1180 | setup_pager(); | |
1181 | ||
1182 | return __cmd_timechart(); | |
1183 | } |