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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" | |
10274989 AV |
24 | #include "util/callchain.h" |
25 | #include "util/strlist.h" | |
26 | ||
27 | #include "perf.h" | |
28 | #include "util/header.h" | |
29 | #include "util/parse-options.h" | |
30 | #include "util/parse-events.h" | |
5cbd0805 | 31 | #include "util/event.h" |
301a0b02 | 32 | #include "util/session.h" |
10274989 AV |
33 | #include "util/svghelper.h" |
34 | ||
35 | static char const *input_name = "perf.data"; | |
36 | static char const *output_name = "output.svg"; | |
37 | ||
10274989 AV |
38 | static unsigned int numcpus; |
39 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
40 | static u64 max_freq; /* Highest CPU frequency seen */ | |
41 | static u64 turbo_frequency; | |
42 | ||
43 | static u64 first_time, last_time; | |
44 | ||
c0555642 | 45 | static bool power_only; |
39a90a8e | 46 | |
10274989 | 47 | |
10274989 AV |
48 | struct per_pid; |
49 | struct per_pidcomm; | |
50 | ||
51 | struct cpu_sample; | |
52 | struct power_event; | |
53 | struct wake_event; | |
54 | ||
55 | struct sample_wrapper; | |
56 | ||
57 | /* | |
58 | * Datastructure layout: | |
59 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
60 | * Each "pid" entry, has a list of "comm"s. | |
61 | * this is because we want to track different programs different, while | |
62 | * exec will reuse the original pid (by design). | |
63 | * Each comm has a list of samples that will be used to draw | |
64 | * final graph. | |
65 | */ | |
66 | ||
67 | struct per_pid { | |
68 | struct per_pid *next; | |
69 | ||
70 | int pid; | |
71 | int ppid; | |
72 | ||
73 | u64 start_time; | |
74 | u64 end_time; | |
75 | u64 total_time; | |
76 | int display; | |
77 | ||
78 | struct per_pidcomm *all; | |
79 | struct per_pidcomm *current; | |
10274989 AV |
80 | }; |
81 | ||
82 | ||
83 | struct per_pidcomm { | |
84 | struct per_pidcomm *next; | |
85 | ||
86 | u64 start_time; | |
87 | u64 end_time; | |
88 | u64 total_time; | |
89 | ||
90 | int Y; | |
91 | int display; | |
92 | ||
93 | long state; | |
94 | u64 state_since; | |
95 | ||
96 | char *comm; | |
97 | ||
98 | struct cpu_sample *samples; | |
99 | }; | |
100 | ||
101 | struct sample_wrapper { | |
102 | struct sample_wrapper *next; | |
103 | ||
104 | u64 timestamp; | |
105 | unsigned char data[0]; | |
106 | }; | |
107 | ||
108 | #define TYPE_NONE 0 | |
109 | #define TYPE_RUNNING 1 | |
110 | #define TYPE_WAITING 2 | |
111 | #define TYPE_BLOCKED 3 | |
112 | ||
113 | struct cpu_sample { | |
114 | struct cpu_sample *next; | |
115 | ||
116 | u64 start_time; | |
117 | u64 end_time; | |
118 | int type; | |
119 | int cpu; | |
120 | }; | |
121 | ||
122 | static struct per_pid *all_data; | |
123 | ||
124 | #define CSTATE 1 | |
125 | #define PSTATE 2 | |
126 | ||
127 | struct power_event { | |
128 | struct power_event *next; | |
129 | int type; | |
130 | int state; | |
131 | u64 start_time; | |
132 | u64 end_time; | |
133 | int cpu; | |
134 | }; | |
135 | ||
136 | struct wake_event { | |
137 | struct wake_event *next; | |
138 | int waker; | |
139 | int wakee; | |
140 | u64 time; | |
141 | }; | |
142 | ||
143 | static struct power_event *power_events; | |
144 | static struct wake_event *wake_events; | |
145 | ||
146 | struct sample_wrapper *all_samples; | |
147 | ||
bbe2987b AV |
148 | |
149 | struct process_filter; | |
150 | struct process_filter { | |
5cbd0805 LZ |
151 | char *name; |
152 | int pid; | |
153 | struct process_filter *next; | |
bbe2987b AV |
154 | }; |
155 | ||
156 | static struct process_filter *process_filter; | |
157 | ||
158 | ||
10274989 AV |
159 | static struct per_pid *find_create_pid(int pid) |
160 | { | |
161 | struct per_pid *cursor = all_data; | |
162 | ||
163 | while (cursor) { | |
164 | if (cursor->pid == pid) | |
165 | return cursor; | |
166 | cursor = cursor->next; | |
167 | } | |
168 | cursor = malloc(sizeof(struct per_pid)); | |
169 | assert(cursor != NULL); | |
170 | memset(cursor, 0, sizeof(struct per_pid)); | |
171 | cursor->pid = pid; | |
172 | cursor->next = all_data; | |
173 | all_data = cursor; | |
174 | return cursor; | |
175 | } | |
176 | ||
177 | static void pid_set_comm(int pid, char *comm) | |
178 | { | |
179 | struct per_pid *p; | |
180 | struct per_pidcomm *c; | |
181 | p = find_create_pid(pid); | |
182 | c = p->all; | |
183 | while (c) { | |
184 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
185 | p->current = c; | |
186 | return; | |
187 | } | |
188 | if (!c->comm) { | |
189 | c->comm = strdup(comm); | |
190 | p->current = c; | |
191 | return; | |
192 | } | |
193 | c = c->next; | |
194 | } | |
195 | c = malloc(sizeof(struct per_pidcomm)); | |
196 | assert(c != NULL); | |
197 | memset(c, 0, sizeof(struct per_pidcomm)); | |
198 | c->comm = strdup(comm); | |
199 | p->current = c; | |
200 | c->next = p->all; | |
201 | p->all = c; | |
202 | } | |
203 | ||
204 | static void pid_fork(int pid, int ppid, u64 timestamp) | |
205 | { | |
206 | struct per_pid *p, *pp; | |
207 | p = find_create_pid(pid); | |
208 | pp = find_create_pid(ppid); | |
209 | p->ppid = ppid; | |
210 | if (pp->current && pp->current->comm && !p->current) | |
211 | pid_set_comm(pid, pp->current->comm); | |
212 | ||
213 | p->start_time = timestamp; | |
214 | if (p->current) { | |
215 | p->current->start_time = timestamp; | |
216 | p->current->state_since = timestamp; | |
217 | } | |
218 | } | |
219 | ||
220 | static void pid_exit(int pid, u64 timestamp) | |
221 | { | |
222 | struct per_pid *p; | |
223 | p = find_create_pid(pid); | |
224 | p->end_time = timestamp; | |
225 | if (p->current) | |
226 | p->current->end_time = timestamp; | |
227 | } | |
228 | ||
229 | static void | |
230 | pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end) | |
231 | { | |
232 | struct per_pid *p; | |
233 | struct per_pidcomm *c; | |
234 | struct cpu_sample *sample; | |
235 | ||
236 | p = find_create_pid(pid); | |
237 | c = p->current; | |
238 | if (!c) { | |
239 | c = malloc(sizeof(struct per_pidcomm)); | |
240 | assert(c != NULL); | |
241 | memset(c, 0, sizeof(struct per_pidcomm)); | |
242 | p->current = c; | |
243 | c->next = p->all; | |
244 | p->all = c; | |
245 | } | |
246 | ||
247 | sample = malloc(sizeof(struct cpu_sample)); | |
248 | assert(sample != NULL); | |
249 | memset(sample, 0, sizeof(struct cpu_sample)); | |
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; | |
266 | ||
267 | if (cpu > numcpus) | |
268 | numcpus = cpu; | |
269 | } | |
270 | ||
271 | #define MAX_CPUS 4096 | |
272 | ||
273 | static u64 cpus_cstate_start_times[MAX_CPUS]; | |
274 | static int cpus_cstate_state[MAX_CPUS]; | |
275 | static u64 cpus_pstate_start_times[MAX_CPUS]; | |
276 | static u64 cpus_pstate_state[MAX_CPUS]; | |
277 | ||
d8f66248 | 278 | static int process_comm_event(event_t *event, struct perf_session *session __used) |
10274989 | 279 | { |
8f06d7e6 | 280 | pid_set_comm(event->comm.tid, event->comm.comm); |
10274989 AV |
281 | return 0; |
282 | } | |
d8f66248 ACM |
283 | |
284 | static int process_fork_event(event_t *event, struct perf_session *session __used) | |
10274989 AV |
285 | { |
286 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
287 | return 0; | |
288 | } | |
289 | ||
d8f66248 | 290 | static int process_exit_event(event_t *event, struct perf_session *session __used) |
10274989 AV |
291 | { |
292 | pid_exit(event->fork.pid, event->fork.time); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | struct trace_entry { | |
10274989 AV |
297 | unsigned short type; |
298 | unsigned char flags; | |
299 | unsigned char preempt_count; | |
300 | int pid; | |
028c5152 | 301 | int lock_depth; |
10274989 AV |
302 | }; |
303 | ||
304 | struct power_entry { | |
305 | struct trace_entry te; | |
306 | s64 type; | |
307 | s64 value; | |
308 | }; | |
309 | ||
310 | #define TASK_COMM_LEN 16 | |
311 | struct wakeup_entry { | |
312 | struct trace_entry te; | |
313 | char comm[TASK_COMM_LEN]; | |
314 | int pid; | |
315 | int prio; | |
316 | int success; | |
317 | }; | |
318 | ||
319 | /* | |
320 | * trace_flag_type is an enumeration that holds different | |
321 | * states when a trace occurs. These are: | |
322 | * IRQS_OFF - interrupts were disabled | |
323 | * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags | |
324 | * NEED_RESCED - reschedule is requested | |
325 | * HARDIRQ - inside an interrupt handler | |
326 | * SOFTIRQ - inside a softirq handler | |
327 | */ | |
328 | enum trace_flag_type { | |
329 | TRACE_FLAG_IRQS_OFF = 0x01, | |
330 | TRACE_FLAG_IRQS_NOSUPPORT = 0x02, | |
331 | TRACE_FLAG_NEED_RESCHED = 0x04, | |
332 | TRACE_FLAG_HARDIRQ = 0x08, | |
333 | TRACE_FLAG_SOFTIRQ = 0x10, | |
334 | }; | |
335 | ||
336 | ||
337 | ||
338 | struct sched_switch { | |
339 | struct trace_entry te; | |
340 | char prev_comm[TASK_COMM_LEN]; | |
341 | int prev_pid; | |
342 | int prev_prio; | |
343 | long prev_state; /* Arjan weeps. */ | |
344 | char next_comm[TASK_COMM_LEN]; | |
345 | int next_pid; | |
346 | int next_prio; | |
347 | }; | |
348 | ||
349 | static void c_state_start(int cpu, u64 timestamp, int state) | |
350 | { | |
351 | cpus_cstate_start_times[cpu] = timestamp; | |
352 | cpus_cstate_state[cpu] = state; | |
353 | } | |
354 | ||
355 | static void c_state_end(int cpu, u64 timestamp) | |
356 | { | |
357 | struct power_event *pwr; | |
358 | pwr = malloc(sizeof(struct power_event)); | |
359 | if (!pwr) | |
360 | return; | |
361 | memset(pwr, 0, sizeof(struct power_event)); | |
362 | ||
363 | pwr->state = cpus_cstate_state[cpu]; | |
364 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
365 | pwr->end_time = timestamp; | |
366 | pwr->cpu = cpu; | |
367 | pwr->type = CSTATE; | |
368 | pwr->next = power_events; | |
369 | ||
370 | power_events = pwr; | |
371 | } | |
372 | ||
373 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
374 | { | |
375 | struct power_event *pwr; | |
376 | pwr = malloc(sizeof(struct power_event)); | |
377 | ||
378 | if (new_freq > 8000000) /* detect invalid data */ | |
379 | return; | |
380 | ||
381 | if (!pwr) | |
382 | return; | |
383 | memset(pwr, 0, sizeof(struct power_event)); | |
384 | ||
385 | pwr->state = cpus_pstate_state[cpu]; | |
386 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
387 | pwr->end_time = timestamp; | |
388 | pwr->cpu = cpu; | |
389 | pwr->type = PSTATE; | |
390 | pwr->next = power_events; | |
391 | ||
392 | if (!pwr->start_time) | |
393 | pwr->start_time = first_time; | |
394 | ||
395 | power_events = pwr; | |
396 | ||
397 | cpus_pstate_state[cpu] = new_freq; | |
398 | cpus_pstate_start_times[cpu] = timestamp; | |
399 | ||
400 | if ((u64)new_freq > max_freq) | |
401 | max_freq = new_freq; | |
402 | ||
403 | if (new_freq < min_freq || min_freq == 0) | |
404 | min_freq = new_freq; | |
405 | ||
406 | if (new_freq == max_freq - 1000) | |
407 | turbo_frequency = max_freq; | |
408 | } | |
409 | ||
410 | static void | |
411 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
412 | { | |
413 | struct wake_event *we; | |
414 | struct per_pid *p; | |
415 | struct wakeup_entry *wake = (void *)te; | |
416 | ||
417 | we = malloc(sizeof(struct wake_event)); | |
418 | if (!we) | |
419 | return; | |
420 | ||
421 | memset(we, 0, sizeof(struct wake_event)); | |
422 | we->time = timestamp; | |
423 | we->waker = pid; | |
424 | ||
425 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
426 | we->waker = -1; | |
427 | ||
428 | we->wakee = wake->pid; | |
429 | we->next = wake_events; | |
430 | wake_events = we; | |
431 | p = find_create_pid(we->wakee); | |
432 | ||
433 | if (p && p->current && p->current->state == TYPE_NONE) { | |
434 | p->current->state_since = timestamp; | |
435 | p->current->state = TYPE_WAITING; | |
436 | } | |
437 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
438 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
439 | p->current->state_since = timestamp; | |
440 | p->current->state = TYPE_WAITING; | |
441 | } | |
442 | } | |
443 | ||
444 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
445 | { | |
446 | struct per_pid *p = NULL, *prev_p; | |
447 | struct sched_switch *sw = (void *)te; | |
448 | ||
449 | ||
450 | prev_p = find_create_pid(sw->prev_pid); | |
451 | ||
452 | p = find_create_pid(sw->next_pid); | |
453 | ||
454 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
455 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
456 | if (p && p->current) { | |
457 | if (p->current->state != TYPE_NONE) | |
458 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
459 | ||
460 | p->current->state_since = timestamp; | |
461 | p->current->state = TYPE_RUNNING; | |
462 | } | |
463 | ||
464 | if (prev_p->current) { | |
465 | prev_p->current->state = TYPE_NONE; | |
466 | prev_p->current->state_since = timestamp; | |
467 | if (sw->prev_state & 2) | |
468 | prev_p->current->state = TYPE_BLOCKED; | |
469 | if (sw->prev_state == 0) | |
470 | prev_p->current->state = TYPE_WAITING; | |
471 | } | |
472 | } | |
473 | ||
474 | ||
c019879b | 475 | static int process_sample_event(event_t *event, struct perf_session *session) |
10274989 | 476 | { |
180f95e2 | 477 | struct sample_data data; |
10274989 AV |
478 | struct trace_entry *te; |
479 | ||
180f95e2 | 480 | memset(&data, 0, sizeof(data)); |
10274989 | 481 | |
c019879b | 482 | event__parse_sample(event, session->sample_type, &data); |
10274989 | 483 | |
c019879b | 484 | if (session->sample_type & PERF_SAMPLE_TIME) { |
180f95e2 OH |
485 | if (!first_time || first_time > data.time) |
486 | first_time = data.time; | |
487 | if (last_time < data.time) | |
488 | last_time = data.time; | |
10274989 | 489 | } |
180f95e2 OH |
490 | |
491 | te = (void *)data.raw_data; | |
c019879b | 492 | if (session->sample_type & PERF_SAMPLE_RAW && data.raw_size > 0) { |
10274989 AV |
493 | char *event_str; |
494 | struct power_entry *pe; | |
495 | ||
496 | pe = (void *)te; | |
497 | ||
498 | event_str = perf_header__find_event(te->type); | |
499 | ||
500 | if (!event_str) | |
501 | return 0; | |
502 | ||
503 | if (strcmp(event_str, "power:power_start") == 0) | |
180f95e2 | 504 | c_state_start(data.cpu, data.time, pe->value); |
10274989 AV |
505 | |
506 | if (strcmp(event_str, "power:power_end") == 0) | |
180f95e2 | 507 | c_state_end(data.cpu, data.time); |
10274989 AV |
508 | |
509 | if (strcmp(event_str, "power:power_frequency") == 0) | |
180f95e2 | 510 | p_state_change(data.cpu, data.time, pe->value); |
10274989 AV |
511 | |
512 | if (strcmp(event_str, "sched:sched_wakeup") == 0) | |
180f95e2 | 513 | sched_wakeup(data.cpu, data.time, data.pid, te); |
10274989 AV |
514 | |
515 | if (strcmp(event_str, "sched:sched_switch") == 0) | |
180f95e2 | 516 | sched_switch(data.cpu, data.time, te); |
10274989 AV |
517 | } |
518 | return 0; | |
519 | } | |
520 | ||
521 | /* | |
522 | * After the last sample we need to wrap up the current C/P state | |
523 | * and close out each CPU for these. | |
524 | */ | |
525 | static void end_sample_processing(void) | |
526 | { | |
527 | u64 cpu; | |
528 | struct power_event *pwr; | |
529 | ||
39a90a8e | 530 | for (cpu = 0; cpu <= numcpus; cpu++) { |
10274989 AV |
531 | pwr = malloc(sizeof(struct power_event)); |
532 | if (!pwr) | |
533 | return; | |
534 | memset(pwr, 0, sizeof(struct power_event)); | |
535 | ||
536 | /* C state */ | |
537 | #if 0 | |
538 | pwr->state = cpus_cstate_state[cpu]; | |
539 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
540 | pwr->end_time = last_time; | |
541 | pwr->cpu = cpu; | |
542 | pwr->type = CSTATE; | |
543 | pwr->next = power_events; | |
544 | ||
545 | power_events = pwr; | |
546 | #endif | |
547 | /* P state */ | |
548 | ||
549 | pwr = malloc(sizeof(struct power_event)); | |
550 | if (!pwr) | |
551 | return; | |
552 | memset(pwr, 0, sizeof(struct power_event)); | |
553 | ||
554 | pwr->state = cpus_pstate_state[cpu]; | |
555 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
556 | pwr->end_time = last_time; | |
557 | pwr->cpu = cpu; | |
558 | pwr->type = PSTATE; | |
559 | pwr->next = power_events; | |
560 | ||
561 | if (!pwr->start_time) | |
562 | pwr->start_time = first_time; | |
563 | if (!pwr->state) | |
564 | pwr->state = min_freq; | |
565 | power_events = pwr; | |
566 | } | |
567 | } | |
568 | ||
c019879b | 569 | static u64 sample_time(event_t *event, const struct perf_session *session) |
10274989 AV |
570 | { |
571 | int cursor; | |
572 | ||
573 | cursor = 0; | |
c019879b | 574 | if (session->sample_type & PERF_SAMPLE_IP) |
10274989 | 575 | cursor++; |
c019879b | 576 | if (session->sample_type & PERF_SAMPLE_TID) |
10274989 | 577 | cursor++; |
c019879b | 578 | if (session->sample_type & PERF_SAMPLE_TIME) |
10274989 AV |
579 | return event->sample.array[cursor]; |
580 | return 0; | |
581 | } | |
582 | ||
583 | ||
584 | /* | |
585 | * We first queue all events, sorted backwards by insertion. | |
586 | * The order will get flipped later. | |
587 | */ | |
c019879b | 588 | static int queue_sample_event(event_t *event, struct perf_session *session) |
10274989 AV |
589 | { |
590 | struct sample_wrapper *copy, *prev; | |
591 | int size; | |
592 | ||
593 | size = event->sample.header.size + sizeof(struct sample_wrapper) + 8; | |
594 | ||
595 | copy = malloc(size); | |
596 | if (!copy) | |
597 | return 1; | |
598 | ||
599 | memset(copy, 0, size); | |
600 | ||
601 | copy->next = NULL; | |
c019879b | 602 | copy->timestamp = sample_time(event, session); |
10274989 AV |
603 | |
604 | memcpy(©->data, event, event->sample.header.size); | |
605 | ||
606 | /* insert in the right place in the list */ | |
607 | ||
608 | if (!all_samples) { | |
609 | /* first sample ever */ | |
610 | all_samples = copy; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | if (all_samples->timestamp < copy->timestamp) { | |
615 | /* insert at the head of the list */ | |
616 | copy->next = all_samples; | |
617 | all_samples = copy; | |
618 | return 0; | |
619 | } | |
620 | ||
621 | prev = all_samples; | |
622 | while (prev->next) { | |
623 | if (prev->next->timestamp < copy->timestamp) { | |
624 | copy->next = prev->next; | |
625 | prev->next = copy; | |
626 | return 0; | |
627 | } | |
628 | prev = prev->next; | |
629 | } | |
630 | /* insert at the end of the list */ | |
631 | prev->next = copy; | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
636 | static void sort_queued_samples(void) | |
637 | { | |
638 | struct sample_wrapper *cursor, *next; | |
639 | ||
640 | cursor = all_samples; | |
641 | all_samples = NULL; | |
642 | ||
643 | while (cursor) { | |
644 | next = cursor->next; | |
645 | cursor->next = all_samples; | |
646 | all_samples = cursor; | |
647 | cursor = next; | |
648 | } | |
649 | } | |
650 | ||
651 | /* | |
652 | * Sort the pid datastructure | |
653 | */ | |
654 | static void sort_pids(void) | |
655 | { | |
656 | struct per_pid *new_list, *p, *cursor, *prev; | |
657 | /* sort by ppid first, then by pid, lowest to highest */ | |
658 | ||
659 | new_list = NULL; | |
660 | ||
661 | while (all_data) { | |
662 | p = all_data; | |
663 | all_data = p->next; | |
664 | p->next = NULL; | |
665 | ||
666 | if (new_list == NULL) { | |
667 | new_list = p; | |
668 | p->next = NULL; | |
669 | continue; | |
670 | } | |
671 | prev = NULL; | |
672 | cursor = new_list; | |
673 | while (cursor) { | |
674 | if (cursor->ppid > p->ppid || | |
675 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
676 | /* must insert before */ | |
677 | if (prev) { | |
678 | p->next = prev->next; | |
679 | prev->next = p; | |
680 | cursor = NULL; | |
681 | continue; | |
682 | } else { | |
683 | p->next = new_list; | |
684 | new_list = p; | |
685 | cursor = NULL; | |
686 | continue; | |
687 | } | |
688 | } | |
689 | ||
690 | prev = cursor; | |
691 | cursor = cursor->next; | |
692 | if (!cursor) | |
693 | prev->next = p; | |
694 | } | |
695 | } | |
696 | all_data = new_list; | |
697 | } | |
698 | ||
699 | ||
700 | static void draw_c_p_states(void) | |
701 | { | |
702 | struct power_event *pwr; | |
703 | pwr = power_events; | |
704 | ||
705 | /* | |
706 | * two pass drawing so that the P state bars are on top of the C state blocks | |
707 | */ | |
708 | while (pwr) { | |
709 | if (pwr->type == CSTATE) | |
710 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
711 | pwr = pwr->next; | |
712 | } | |
713 | ||
714 | pwr = power_events; | |
715 | while (pwr) { | |
716 | if (pwr->type == PSTATE) { | |
717 | if (!pwr->state) | |
718 | pwr->state = min_freq; | |
719 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
720 | } | |
721 | pwr = pwr->next; | |
722 | } | |
723 | } | |
724 | ||
725 | static void draw_wakeups(void) | |
726 | { | |
727 | struct wake_event *we; | |
728 | struct per_pid *p; | |
729 | struct per_pidcomm *c; | |
730 | ||
731 | we = wake_events; | |
732 | while (we) { | |
733 | int from = 0, to = 0; | |
4f1202c8 | 734 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
735 | |
736 | /* locate the column of the waker and wakee */ | |
737 | p = all_data; | |
738 | while (p) { | |
739 | if (p->pid == we->waker || p->pid == we->wakee) { | |
740 | c = p->all; | |
741 | while (c) { | |
742 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 743 | if (p->pid == we->waker && !from) { |
10274989 | 744 | from = c->Y; |
3bc2a39c | 745 | task_from = strdup(c->comm); |
4f1202c8 | 746 | } |
bbe2987b | 747 | if (p->pid == we->wakee && !to) { |
10274989 | 748 | to = c->Y; |
3bc2a39c | 749 | task_to = strdup(c->comm); |
4f1202c8 | 750 | } |
10274989 AV |
751 | } |
752 | c = c->next; | |
753 | } | |
3bc2a39c AV |
754 | c = p->all; |
755 | while (c) { | |
756 | if (p->pid == we->waker && !from) { | |
757 | from = c->Y; | |
758 | task_from = strdup(c->comm); | |
759 | } | |
760 | if (p->pid == we->wakee && !to) { | |
761 | to = c->Y; | |
762 | task_to = strdup(c->comm); | |
763 | } | |
764 | c = c->next; | |
765 | } | |
10274989 AV |
766 | } |
767 | p = p->next; | |
768 | } | |
769 | ||
3bc2a39c AV |
770 | if (!task_from) { |
771 | task_from = malloc(40); | |
772 | sprintf(task_from, "[%i]", we->waker); | |
773 | } | |
774 | if (!task_to) { | |
775 | task_to = malloc(40); | |
776 | sprintf(task_to, "[%i]", we->wakee); | |
777 | } | |
778 | ||
10274989 AV |
779 | if (we->waker == -1) |
780 | svg_interrupt(we->time, to); | |
781 | else if (from && to && abs(from - to) == 1) | |
782 | svg_wakeline(we->time, from, to); | |
783 | else | |
4f1202c8 | 784 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 785 | we = we->next; |
3bc2a39c AV |
786 | |
787 | free(task_from); | |
788 | free(task_to); | |
10274989 AV |
789 | } |
790 | } | |
791 | ||
792 | static void draw_cpu_usage(void) | |
793 | { | |
794 | struct per_pid *p; | |
795 | struct per_pidcomm *c; | |
796 | struct cpu_sample *sample; | |
797 | p = all_data; | |
798 | while (p) { | |
799 | c = p->all; | |
800 | while (c) { | |
801 | sample = c->samples; | |
802 | while (sample) { | |
803 | if (sample->type == TYPE_RUNNING) | |
804 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
805 | ||
806 | sample = sample->next; | |
807 | } | |
808 | c = c->next; | |
809 | } | |
810 | p = p->next; | |
811 | } | |
812 | } | |
813 | ||
814 | static void draw_process_bars(void) | |
815 | { | |
816 | struct per_pid *p; | |
817 | struct per_pidcomm *c; | |
818 | struct cpu_sample *sample; | |
819 | int Y = 0; | |
820 | ||
821 | Y = 2 * numcpus + 2; | |
822 | ||
823 | p = all_data; | |
824 | while (p) { | |
825 | c = p->all; | |
826 | while (c) { | |
827 | if (!c->display) { | |
828 | c->Y = 0; | |
829 | c = c->next; | |
830 | continue; | |
831 | } | |
832 | ||
a92fe7b3 | 833 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
834 | sample = c->samples; |
835 | while (sample) { | |
836 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 837 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
838 | if (sample->type == TYPE_BLOCKED) |
839 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
840 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 841 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
842 | sample = sample->next; |
843 | } | |
844 | ||
845 | if (c->comm) { | |
846 | char comm[256]; | |
847 | if (c->total_time > 5000000000) /* 5 seconds */ | |
848 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
849 | else | |
850 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
851 | ||
852 | svg_text(Y, c->start_time, comm); | |
853 | } | |
854 | c->Y = Y; | |
855 | Y++; | |
856 | c = c->next; | |
857 | } | |
858 | p = p->next; | |
859 | } | |
860 | } | |
861 | ||
bbe2987b AV |
862 | static void add_process_filter(const char *string) |
863 | { | |
864 | struct process_filter *filt; | |
865 | int pid; | |
866 | ||
867 | pid = strtoull(string, NULL, 10); | |
868 | filt = malloc(sizeof(struct process_filter)); | |
869 | if (!filt) | |
870 | return; | |
871 | ||
872 | filt->name = strdup(string); | |
873 | filt->pid = pid; | |
874 | filt->next = process_filter; | |
875 | ||
876 | process_filter = filt; | |
877 | } | |
878 | ||
879 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
880 | { | |
881 | struct process_filter *filt; | |
882 | if (!process_filter) | |
883 | return 1; | |
884 | ||
885 | filt = process_filter; | |
886 | while (filt) { | |
887 | if (filt->pid && p->pid == filt->pid) | |
888 | return 1; | |
889 | if (strcmp(filt->name, c->comm) == 0) | |
890 | return 1; | |
891 | filt = filt->next; | |
892 | } | |
893 | return 0; | |
894 | } | |
895 | ||
896 | static int determine_display_tasks_filtered(void) | |
897 | { | |
898 | struct per_pid *p; | |
899 | struct per_pidcomm *c; | |
900 | int count = 0; | |
901 | ||
902 | p = all_data; | |
903 | while (p) { | |
904 | p->display = 0; | |
905 | if (p->start_time == 1) | |
906 | p->start_time = first_time; | |
907 | ||
908 | /* no exit marker, task kept running to the end */ | |
909 | if (p->end_time == 0) | |
910 | p->end_time = last_time; | |
911 | ||
912 | c = p->all; | |
913 | ||
914 | while (c) { | |
915 | c->display = 0; | |
916 | ||
917 | if (c->start_time == 1) | |
918 | c->start_time = first_time; | |
919 | ||
920 | if (passes_filter(p, c)) { | |
921 | c->display = 1; | |
922 | p->display = 1; | |
923 | count++; | |
924 | } | |
925 | ||
926 | if (c->end_time == 0) | |
927 | c->end_time = last_time; | |
928 | ||
929 | c = c->next; | |
930 | } | |
931 | p = p->next; | |
932 | } | |
933 | return count; | |
934 | } | |
935 | ||
10274989 AV |
936 | static int determine_display_tasks(u64 threshold) |
937 | { | |
938 | struct per_pid *p; | |
939 | struct per_pidcomm *c; | |
940 | int count = 0; | |
941 | ||
bbe2987b AV |
942 | if (process_filter) |
943 | return determine_display_tasks_filtered(); | |
944 | ||
10274989 AV |
945 | p = all_data; |
946 | while (p) { | |
947 | p->display = 0; | |
948 | if (p->start_time == 1) | |
949 | p->start_time = first_time; | |
950 | ||
951 | /* no exit marker, task kept running to the end */ | |
952 | if (p->end_time == 0) | |
953 | p->end_time = last_time; | |
39a90a8e | 954 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
955 | p->display = 1; |
956 | ||
957 | c = p->all; | |
958 | ||
959 | while (c) { | |
960 | c->display = 0; | |
961 | ||
962 | if (c->start_time == 1) | |
963 | c->start_time = first_time; | |
964 | ||
39a90a8e | 965 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
966 | c->display = 1; |
967 | count++; | |
968 | } | |
969 | ||
970 | if (c->end_time == 0) | |
971 | c->end_time = last_time; | |
972 | ||
973 | c = c->next; | |
974 | } | |
975 | p = p->next; | |
976 | } | |
977 | return count; | |
978 | } | |
979 | ||
980 | ||
981 | ||
982 | #define TIME_THRESH 10000000 | |
983 | ||
984 | static void write_svg_file(const char *filename) | |
985 | { | |
986 | u64 i; | |
987 | int count; | |
988 | ||
989 | numcpus++; | |
990 | ||
991 | ||
992 | count = determine_display_tasks(TIME_THRESH); | |
993 | ||
994 | /* We'd like to show at least 15 tasks; be less picky if we have fewer */ | |
995 | if (count < 15) | |
996 | count = determine_display_tasks(TIME_THRESH / 10); | |
997 | ||
5094b655 | 998 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 999 | |
5094b655 | 1000 | svg_time_grid(); |
10274989 AV |
1001 | svg_legenda(); |
1002 | ||
1003 | for (i = 0; i < numcpus; i++) | |
1004 | svg_cpu_box(i, max_freq, turbo_frequency); | |
1005 | ||
1006 | draw_cpu_usage(); | |
1007 | draw_process_bars(); | |
1008 | draw_c_p_states(); | |
1009 | draw_wakeups(); | |
1010 | ||
1011 | svg_close(); | |
1012 | } | |
1013 | ||
c019879b | 1014 | static void process_samples(struct perf_session *session) |
10274989 AV |
1015 | { |
1016 | struct sample_wrapper *cursor; | |
1017 | event_t *event; | |
1018 | ||
1019 | sort_queued_samples(); | |
1020 | ||
1021 | cursor = all_samples; | |
1022 | while (cursor) { | |
1023 | event = (void *)&cursor->data; | |
1024 | cursor = cursor->next; | |
c019879b | 1025 | process_sample_event(event, session); |
10274989 AV |
1026 | } |
1027 | } | |
1028 | ||
301a0b02 | 1029 | static struct perf_event_ops event_ops = { |
55aa640f ACM |
1030 | .comm = process_comm_event, |
1031 | .fork = process_fork_event, | |
1032 | .exit = process_exit_event, | |
1033 | .sample = queue_sample_event, | |
5cbd0805 | 1034 | }; |
10274989 | 1035 | |
5cbd0805 LZ |
1036 | static int __cmd_timechart(void) |
1037 | { | |
75be6cf4 | 1038 | struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0); |
d549c769 | 1039 | int ret = -EINVAL; |
10274989 | 1040 | |
94c744b6 ACM |
1041 | if (session == NULL) |
1042 | return -ENOMEM; | |
1043 | ||
d549c769 ACM |
1044 | if (!perf_session__has_traces(session, "timechart record")) |
1045 | goto out_delete; | |
1046 | ||
ec913369 | 1047 | ret = perf_session__process_events(session, &event_ops); |
5cbd0805 | 1048 | if (ret) |
94c744b6 | 1049 | goto out_delete; |
10274989 | 1050 | |
c019879b | 1051 | process_samples(session); |
10274989 AV |
1052 | |
1053 | end_sample_processing(); | |
1054 | ||
1055 | sort_pids(); | |
1056 | ||
1057 | write_svg_file(output_name); | |
1058 | ||
6beba7ad ACM |
1059 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1060 | (last_time - first_time) / 1000000000.0, output_name); | |
94c744b6 ACM |
1061 | out_delete: |
1062 | perf_session__delete(session); | |
1063 | return ret; | |
10274989 AV |
1064 | } |
1065 | ||
3c09eebd AV |
1066 | static const char * const timechart_usage[] = { |
1067 | "perf timechart [<options>] {record}", | |
10274989 AV |
1068 | NULL |
1069 | }; | |
1070 | ||
3c09eebd AV |
1071 | static const char *record_args[] = { |
1072 | "record", | |
1073 | "-a", | |
1074 | "-R", | |
1075 | "-M", | |
1076 | "-f", | |
1077 | "-c", "1", | |
1078 | "-e", "power:power_start", | |
1079 | "-e", "power:power_end", | |
1080 | "-e", "power:power_frequency", | |
1081 | "-e", "sched:sched_wakeup", | |
1082 | "-e", "sched:sched_switch", | |
1083 | }; | |
1084 | ||
1085 | static int __cmd_record(int argc, const char **argv) | |
1086 | { | |
1087 | unsigned int rec_argc, i, j; | |
1088 | const char **rec_argv; | |
1089 | ||
1090 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; | |
1091 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1092 | ||
1093 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1094 | rec_argv[i] = strdup(record_args[i]); | |
1095 | ||
1096 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1097 | rec_argv[i] = argv[j]; | |
1098 | ||
1099 | return cmd_record(i, rec_argv, NULL); | |
1100 | } | |
1101 | ||
bbe2987b AV |
1102 | static int |
1103 | parse_process(const struct option *opt __used, const char *arg, int __used unset) | |
1104 | { | |
1105 | if (arg) | |
1106 | add_process_filter(arg); | |
1107 | return 0; | |
1108 | } | |
1109 | ||
10274989 AV |
1110 | static const struct option options[] = { |
1111 | OPT_STRING('i', "input", &input_name, "file", | |
1112 | "input file name"), | |
1113 | OPT_STRING('o', "output", &output_name, "file", | |
1114 | "output file name"), | |
5094b655 AV |
1115 | OPT_INTEGER('w', "width", &svg_page_width, |
1116 | "page width"), | |
bbe2987b | 1117 | OPT_BOOLEAN('P', "power-only", &power_only, |
39a90a8e | 1118 | "output power data only"), |
bbe2987b AV |
1119 | OPT_CALLBACK('p', "process", NULL, "process", |
1120 | "process selector. Pass a pid or process name.", | |
1121 | parse_process), | |
10274989 AV |
1122 | OPT_END() |
1123 | }; | |
1124 | ||
1125 | ||
1126 | int cmd_timechart(int argc, const char **argv, const char *prefix __used) | |
1127 | { | |
3c09eebd AV |
1128 | argc = parse_options(argc, argv, options, timechart_usage, |
1129 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1130 | |
655000e7 ACM |
1131 | symbol__init(); |
1132 | ||
3c09eebd AV |
1133 | if (argc && !strncmp(argv[0], "rec", 3)) |
1134 | return __cmd_record(argc, argv); | |
1135 | else if (argc) | |
1136 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1137 | |
1138 | setup_pager(); | |
1139 | ||
1140 | return __cmd_timechart(); | |
1141 | } |