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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 | ||
54874e32 | 44 | static int proc_num = 15; |
20c457b8 | 45 | |
10274989 AV |
46 | static unsigned int numcpus; |
47 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
48 | static u64 max_freq; /* Highest CPU frequency seen */ | |
49 | static u64 turbo_frequency; | |
50 | ||
51 | static u64 first_time, last_time; | |
52 | ||
c0555642 | 53 | static bool power_only; |
39a90a8e | 54 | |
10274989 | 55 | |
10274989 AV |
56 | struct per_pid; |
57 | struct per_pidcomm; | |
58 | ||
59 | struct cpu_sample; | |
60 | struct power_event; | |
61 | struct wake_event; | |
62 | ||
63 | struct sample_wrapper; | |
64 | ||
65 | /* | |
66 | * Datastructure layout: | |
67 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
68 | * Each "pid" entry, has a list of "comm"s. | |
69 | * this is because we want to track different programs different, while | |
70 | * exec will reuse the original pid (by design). | |
71 | * Each comm has a list of samples that will be used to draw | |
72 | * final graph. | |
73 | */ | |
74 | ||
75 | struct per_pid { | |
76 | struct per_pid *next; | |
77 | ||
78 | int pid; | |
79 | int ppid; | |
80 | ||
81 | u64 start_time; | |
82 | u64 end_time; | |
83 | u64 total_time; | |
84 | int display; | |
85 | ||
86 | struct per_pidcomm *all; | |
87 | struct per_pidcomm *current; | |
10274989 AV |
88 | }; |
89 | ||
90 | ||
91 | struct per_pidcomm { | |
92 | struct per_pidcomm *next; | |
93 | ||
94 | u64 start_time; | |
95 | u64 end_time; | |
96 | u64 total_time; | |
97 | ||
98 | int Y; | |
99 | int display; | |
100 | ||
101 | long state; | |
102 | u64 state_since; | |
103 | ||
104 | char *comm; | |
105 | ||
106 | struct cpu_sample *samples; | |
107 | }; | |
108 | ||
109 | struct sample_wrapper { | |
110 | struct sample_wrapper *next; | |
111 | ||
112 | u64 timestamp; | |
113 | unsigned char data[0]; | |
114 | }; | |
115 | ||
116 | #define TYPE_NONE 0 | |
117 | #define TYPE_RUNNING 1 | |
118 | #define TYPE_WAITING 2 | |
119 | #define TYPE_BLOCKED 3 | |
120 | ||
121 | struct cpu_sample { | |
122 | struct cpu_sample *next; | |
123 | ||
124 | u64 start_time; | |
125 | u64 end_time; | |
126 | int type; | |
127 | int cpu; | |
128 | }; | |
129 | ||
130 | static struct per_pid *all_data; | |
131 | ||
132 | #define CSTATE 1 | |
133 | #define PSTATE 2 | |
134 | ||
135 | struct power_event { | |
136 | struct power_event *next; | |
137 | int type; | |
138 | int state; | |
139 | u64 start_time; | |
140 | u64 end_time; | |
141 | int cpu; | |
142 | }; | |
143 | ||
144 | struct wake_event { | |
145 | struct wake_event *next; | |
146 | int waker; | |
147 | int wakee; | |
148 | u64 time; | |
149 | }; | |
150 | ||
151 | static struct power_event *power_events; | |
152 | static struct wake_event *wake_events; | |
153 | ||
bbe2987b AV |
154 | struct process_filter; |
155 | struct process_filter { | |
5cbd0805 LZ |
156 | char *name; |
157 | int pid; | |
158 | struct process_filter *next; | |
bbe2987b AV |
159 | }; |
160 | ||
161 | static struct process_filter *process_filter; | |
162 | ||
163 | ||
10274989 AV |
164 | static struct per_pid *find_create_pid(int pid) |
165 | { | |
166 | struct per_pid *cursor = all_data; | |
167 | ||
168 | while (cursor) { | |
169 | if (cursor->pid == pid) | |
170 | return cursor; | |
171 | cursor = cursor->next; | |
172 | } | |
e0dcd6fb | 173 | cursor = zalloc(sizeof(*cursor)); |
10274989 | 174 | assert(cursor != NULL); |
10274989 AV |
175 | cursor->pid = pid; |
176 | cursor->next = all_data; | |
177 | all_data = cursor; | |
178 | return cursor; | |
179 | } | |
180 | ||
181 | static void pid_set_comm(int pid, char *comm) | |
182 | { | |
183 | struct per_pid *p; | |
184 | struct per_pidcomm *c; | |
185 | p = find_create_pid(pid); | |
186 | c = p->all; | |
187 | while (c) { | |
188 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
189 | p->current = c; | |
190 | return; | |
191 | } | |
192 | if (!c->comm) { | |
193 | c->comm = strdup(comm); | |
194 | p->current = c; | |
195 | return; | |
196 | } | |
197 | c = c->next; | |
198 | } | |
e0dcd6fb | 199 | c = zalloc(sizeof(*c)); |
10274989 | 200 | assert(c != NULL); |
10274989 AV |
201 | c->comm = strdup(comm); |
202 | p->current = c; | |
203 | c->next = p->all; | |
204 | p->all = c; | |
205 | } | |
206 | ||
207 | static void pid_fork(int pid, int ppid, u64 timestamp) | |
208 | { | |
209 | struct per_pid *p, *pp; | |
210 | p = find_create_pid(pid); | |
211 | pp = find_create_pid(ppid); | |
212 | p->ppid = ppid; | |
213 | if (pp->current && pp->current->comm && !p->current) | |
214 | pid_set_comm(pid, pp->current->comm); | |
215 | ||
216 | p->start_time = timestamp; | |
217 | if (p->current) { | |
218 | p->current->start_time = timestamp; | |
219 | p->current->state_since = timestamp; | |
220 | } | |
221 | } | |
222 | ||
223 | static void pid_exit(int pid, u64 timestamp) | |
224 | { | |
225 | struct per_pid *p; | |
226 | p = find_create_pid(pid); | |
227 | p->end_time = timestamp; | |
228 | if (p->current) | |
229 | p->current->end_time = timestamp; | |
230 | } | |
231 | ||
232 | static void | |
233 | pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end) | |
234 | { | |
235 | struct per_pid *p; | |
236 | struct per_pidcomm *c; | |
237 | struct cpu_sample *sample; | |
238 | ||
239 | p = find_create_pid(pid); | |
240 | c = p->current; | |
241 | if (!c) { | |
e0dcd6fb | 242 | c = zalloc(sizeof(*c)); |
10274989 | 243 | assert(c != NULL); |
10274989 AV |
244 | p->current = c; |
245 | c->next = p->all; | |
246 | p->all = c; | |
247 | } | |
248 | ||
e0dcd6fb | 249 | sample = zalloc(sizeof(*sample)); |
10274989 | 250 | assert(sample != NULL); |
10274989 AV |
251 | sample->start_time = start; |
252 | sample->end_time = end; | |
253 | sample->type = type; | |
254 | sample->next = c->samples; | |
255 | sample->cpu = cpu; | |
256 | c->samples = sample; | |
257 | ||
258 | if (sample->type == TYPE_RUNNING && end > start && start > 0) { | |
259 | c->total_time += (end-start); | |
260 | p->total_time += (end-start); | |
261 | } | |
262 | ||
263 | if (c->start_time == 0 || c->start_time > start) | |
264 | c->start_time = start; | |
265 | if (p->start_time == 0 || p->start_time > start) | |
266 | p->start_time = start; | |
10274989 AV |
267 | } |
268 | ||
269 | #define MAX_CPUS 4096 | |
270 | ||
271 | static u64 cpus_cstate_start_times[MAX_CPUS]; | |
272 | static int cpus_cstate_state[MAX_CPUS]; | |
273 | static u64 cpus_pstate_start_times[MAX_CPUS]; | |
274 | static u64 cpus_pstate_state[MAX_CPUS]; | |
275 | ||
1d037ca1 | 276 | static int process_comm_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 277 | union perf_event *event, |
1d037ca1 IT |
278 | struct perf_sample *sample __maybe_unused, |
279 | struct machine *machine __maybe_unused) | |
10274989 | 280 | { |
8f06d7e6 | 281 | pid_set_comm(event->comm.tid, event->comm.comm); |
10274989 AV |
282 | return 0; |
283 | } | |
d8f66248 | 284 | |
1d037ca1 | 285 | static int process_fork_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 286 | union perf_event *event, |
1d037ca1 IT |
287 | struct perf_sample *sample __maybe_unused, |
288 | struct machine *machine __maybe_unused) | |
10274989 AV |
289 | { |
290 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
291 | return 0; | |
292 | } | |
293 | ||
1d037ca1 | 294 | static int process_exit_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 295 | union perf_event *event, |
1d037ca1 IT |
296 | struct perf_sample *sample __maybe_unused, |
297 | struct machine *machine __maybe_unused) | |
10274989 AV |
298 | { |
299 | pid_exit(event->fork.pid, event->fork.time); | |
300 | return 0; | |
301 | } | |
302 | ||
303 | struct trace_entry { | |
10274989 AV |
304 | unsigned short type; |
305 | unsigned char flags; | |
306 | unsigned char preempt_count; | |
307 | int pid; | |
028c5152 | 308 | int lock_depth; |
10274989 AV |
309 | }; |
310 | ||
20c457b8 TR |
311 | #ifdef SUPPORT_OLD_POWER_EVENTS |
312 | static int use_old_power_events; | |
313 | struct power_entry_old { | |
10274989 | 314 | struct trace_entry te; |
4c21adf2 TR |
315 | u64 type; |
316 | u64 value; | |
317 | u64 cpu_id; | |
10274989 | 318 | }; |
20c457b8 TR |
319 | #endif |
320 | ||
321 | struct power_processor_entry { | |
322 | struct trace_entry te; | |
323 | u32 state; | |
324 | u32 cpu_id; | |
325 | }; | |
10274989 AV |
326 | |
327 | #define TASK_COMM_LEN 16 | |
328 | struct wakeup_entry { | |
329 | struct trace_entry te; | |
330 | char comm[TASK_COMM_LEN]; | |
331 | int pid; | |
332 | int prio; | |
333 | int success; | |
334 | }; | |
335 | ||
10274989 AV |
336 | struct sched_switch { |
337 | struct trace_entry te; | |
338 | char prev_comm[TASK_COMM_LEN]; | |
339 | int prev_pid; | |
340 | int prev_prio; | |
341 | long prev_state; /* Arjan weeps. */ | |
342 | char next_comm[TASK_COMM_LEN]; | |
343 | int next_pid; | |
344 | int next_prio; | |
345 | }; | |
346 | ||
347 | static void c_state_start(int cpu, u64 timestamp, int state) | |
348 | { | |
349 | cpus_cstate_start_times[cpu] = timestamp; | |
350 | cpus_cstate_state[cpu] = state; | |
351 | } | |
352 | ||
353 | static void c_state_end(int cpu, u64 timestamp) | |
354 | { | |
e0dcd6fb ACM |
355 | struct power_event *pwr = zalloc(sizeof(*pwr)); |
356 | ||
10274989 AV |
357 | if (!pwr) |
358 | return; | |
10274989 AV |
359 | |
360 | pwr->state = cpus_cstate_state[cpu]; | |
361 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
362 | pwr->end_time = timestamp; | |
363 | pwr->cpu = cpu; | |
364 | pwr->type = CSTATE; | |
365 | pwr->next = power_events; | |
366 | ||
367 | power_events = pwr; | |
368 | } | |
369 | ||
370 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
371 | { | |
372 | struct power_event *pwr; | |
10274989 AV |
373 | |
374 | if (new_freq > 8000000) /* detect invalid data */ | |
375 | return; | |
376 | ||
e0dcd6fb | 377 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
378 | if (!pwr) |
379 | return; | |
10274989 AV |
380 | |
381 | pwr->state = cpus_pstate_state[cpu]; | |
382 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
383 | pwr->end_time = timestamp; | |
384 | pwr->cpu = cpu; | |
385 | pwr->type = PSTATE; | |
386 | pwr->next = power_events; | |
387 | ||
388 | if (!pwr->start_time) | |
389 | pwr->start_time = first_time; | |
390 | ||
391 | power_events = pwr; | |
392 | ||
393 | cpus_pstate_state[cpu] = new_freq; | |
394 | cpus_pstate_start_times[cpu] = timestamp; | |
395 | ||
396 | if ((u64)new_freq > max_freq) | |
397 | max_freq = new_freq; | |
398 | ||
399 | if (new_freq < min_freq || min_freq == 0) | |
400 | min_freq = new_freq; | |
401 | ||
402 | if (new_freq == max_freq - 1000) | |
403 | turbo_frequency = max_freq; | |
404 | } | |
405 | ||
406 | static void | |
407 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
408 | { | |
10274989 AV |
409 | struct per_pid *p; |
410 | struct wakeup_entry *wake = (void *)te; | |
e0dcd6fb | 411 | struct wake_event *we = zalloc(sizeof(*we)); |
10274989 | 412 | |
10274989 AV |
413 | if (!we) |
414 | return; | |
415 | ||
10274989 AV |
416 | we->time = timestamp; |
417 | we->waker = pid; | |
418 | ||
419 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
420 | we->waker = -1; | |
421 | ||
422 | we->wakee = wake->pid; | |
423 | we->next = wake_events; | |
424 | wake_events = we; | |
425 | p = find_create_pid(we->wakee); | |
426 | ||
427 | if (p && p->current && p->current->state == TYPE_NONE) { | |
428 | p->current->state_since = timestamp; | |
429 | p->current->state = TYPE_WAITING; | |
430 | } | |
431 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
432 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
433 | p->current->state_since = timestamp; | |
434 | p->current->state = TYPE_WAITING; | |
435 | } | |
436 | } | |
437 | ||
438 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
439 | { | |
440 | struct per_pid *p = NULL, *prev_p; | |
441 | struct sched_switch *sw = (void *)te; | |
442 | ||
443 | ||
444 | prev_p = find_create_pid(sw->prev_pid); | |
445 | ||
446 | p = find_create_pid(sw->next_pid); | |
447 | ||
448 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
449 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
450 | if (p && p->current) { | |
451 | if (p->current->state != TYPE_NONE) | |
452 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
453 | ||
33e26a1b JL |
454 | p->current->state_since = timestamp; |
455 | p->current->state = TYPE_RUNNING; | |
10274989 AV |
456 | } |
457 | ||
458 | if (prev_p->current) { | |
459 | prev_p->current->state = TYPE_NONE; | |
460 | prev_p->current->state_since = timestamp; | |
461 | if (sw->prev_state & 2) | |
462 | prev_p->current->state = TYPE_BLOCKED; | |
463 | if (sw->prev_state == 0) | |
464 | prev_p->current->state = TYPE_WAITING; | |
465 | } | |
466 | } | |
467 | ||
5936678e JO |
468 | typedef int (*tracepoint_handler)(struct perf_evsel *evsel, |
469 | struct perf_sample *sample); | |
10274989 | 470 | |
1d037ca1 IT |
471 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
472 | union perf_event *event __maybe_unused, | |
8d50e5b4 | 473 | struct perf_sample *sample, |
e3f42609 | 474 | struct perf_evsel *evsel, |
1d037ca1 | 475 | struct machine *machine __maybe_unused) |
10274989 | 476 | { |
e3f42609 | 477 | if (evsel->attr.sample_type & PERF_SAMPLE_TIME) { |
640c03ce ACM |
478 | if (!first_time || first_time > sample->time) |
479 | first_time = sample->time; | |
480 | if (last_time < sample->time) | |
481 | last_time = sample->time; | |
10274989 | 482 | } |
180f95e2 | 483 | |
5936678e JO |
484 | if (sample->cpu > numcpus) |
485 | numcpus = sample->cpu; | |
486 | ||
744a9719 ACM |
487 | if (evsel->handler != NULL) { |
488 | tracepoint_handler f = evsel->handler; | |
5936678e JO |
489 | return f(evsel, sample); |
490 | } | |
491 | ||
492 | return 0; | |
493 | } | |
494 | ||
495 | static int | |
496 | process_sample_cpu_idle(struct perf_evsel *evsel __maybe_unused, | |
497 | struct perf_sample *sample) | |
498 | { | |
499 | struct power_processor_entry *ppe = sample->raw_data; | |
500 | ||
501 | if (ppe->state == (u32) PWR_EVENT_EXIT) | |
502 | c_state_end(ppe->cpu_id, sample->time); | |
503 | else | |
504 | c_state_start(ppe->cpu_id, sample->time, ppe->state); | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int | |
509 | process_sample_cpu_frequency(struct perf_evsel *evsel __maybe_unused, | |
510 | struct perf_sample *sample) | |
511 | { | |
512 | struct power_processor_entry *ppe = sample->raw_data; | |
513 | ||
514 | p_state_change(ppe->cpu_id, sample->time, ppe->state); | |
515 | return 0; | |
516 | } | |
517 | ||
518 | static int | |
519 | process_sample_sched_wakeup(struct perf_evsel *evsel __maybe_unused, | |
520 | struct perf_sample *sample) | |
521 | { | |
522 | struct trace_entry *te = sample->raw_data; | |
523 | ||
524 | sched_wakeup(sample->cpu, sample->time, sample->pid, te); | |
525 | return 0; | |
526 | } | |
10274989 | 527 | |
5936678e JO |
528 | static int |
529 | process_sample_sched_switch(struct perf_evsel *evsel __maybe_unused, | |
530 | struct perf_sample *sample) | |
531 | { | |
532 | struct trace_entry *te = sample->raw_data; | |
10274989 | 533 | |
5936678e JO |
534 | sched_switch(sample->cpu, sample->time, te); |
535 | return 0; | |
536 | } | |
20c457b8 TR |
537 | |
538 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
5936678e JO |
539 | static int |
540 | process_sample_power_start(struct perf_evsel *evsel __maybe_unused, | |
541 | struct perf_sample *sample) | |
542 | { | |
543 | struct power_entry_old *peo = sample->raw_data; | |
544 | ||
545 | c_state_start(peo->cpu_id, sample->time, peo->value); | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static int | |
550 | process_sample_power_end(struct perf_evsel *evsel __maybe_unused, | |
551 | struct perf_sample *sample) | |
552 | { | |
553 | c_state_end(sample->cpu, sample->time); | |
554 | return 0; | |
555 | } | |
556 | ||
557 | static int | |
558 | process_sample_power_frequency(struct perf_evsel *evsel __maybe_unused, | |
559 | struct perf_sample *sample) | |
560 | { | |
561 | struct power_entry_old *peo = sample->raw_data; | |
562 | ||
563 | p_state_change(peo->cpu_id, sample->time, peo->value); | |
10274989 AV |
564 | return 0; |
565 | } | |
5936678e | 566 | #endif /* SUPPORT_OLD_POWER_EVENTS */ |
10274989 AV |
567 | |
568 | /* | |
569 | * After the last sample we need to wrap up the current C/P state | |
570 | * and close out each CPU for these. | |
571 | */ | |
572 | static void end_sample_processing(void) | |
573 | { | |
574 | u64 cpu; | |
575 | struct power_event *pwr; | |
576 | ||
39a90a8e | 577 | for (cpu = 0; cpu <= numcpus; cpu++) { |
e0dcd6fb ACM |
578 | /* C state */ |
579 | #if 0 | |
580 | pwr = zalloc(sizeof(*pwr)); | |
10274989 AV |
581 | if (!pwr) |
582 | return; | |
10274989 | 583 | |
10274989 AV |
584 | pwr->state = cpus_cstate_state[cpu]; |
585 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
586 | pwr->end_time = last_time; | |
587 | pwr->cpu = cpu; | |
588 | pwr->type = CSTATE; | |
589 | pwr->next = power_events; | |
590 | ||
591 | power_events = pwr; | |
592 | #endif | |
593 | /* P state */ | |
594 | ||
e0dcd6fb | 595 | pwr = zalloc(sizeof(*pwr)); |
10274989 AV |
596 | if (!pwr) |
597 | return; | |
10274989 AV |
598 | |
599 | pwr->state = cpus_pstate_state[cpu]; | |
600 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
601 | pwr->end_time = last_time; | |
602 | pwr->cpu = cpu; | |
603 | pwr->type = PSTATE; | |
604 | pwr->next = power_events; | |
605 | ||
606 | if (!pwr->start_time) | |
607 | pwr->start_time = first_time; | |
608 | if (!pwr->state) | |
609 | pwr->state = min_freq; | |
610 | power_events = pwr; | |
611 | } | |
612 | } | |
613 | ||
10274989 AV |
614 | /* |
615 | * Sort the pid datastructure | |
616 | */ | |
617 | static void sort_pids(void) | |
618 | { | |
619 | struct per_pid *new_list, *p, *cursor, *prev; | |
620 | /* sort by ppid first, then by pid, lowest to highest */ | |
621 | ||
622 | new_list = NULL; | |
623 | ||
624 | while (all_data) { | |
625 | p = all_data; | |
626 | all_data = p->next; | |
627 | p->next = NULL; | |
628 | ||
629 | if (new_list == NULL) { | |
630 | new_list = p; | |
631 | p->next = NULL; | |
632 | continue; | |
633 | } | |
634 | prev = NULL; | |
635 | cursor = new_list; | |
636 | while (cursor) { | |
637 | if (cursor->ppid > p->ppid || | |
638 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
639 | /* must insert before */ | |
640 | if (prev) { | |
641 | p->next = prev->next; | |
642 | prev->next = p; | |
643 | cursor = NULL; | |
644 | continue; | |
645 | } else { | |
646 | p->next = new_list; | |
647 | new_list = p; | |
648 | cursor = NULL; | |
649 | continue; | |
650 | } | |
651 | } | |
652 | ||
653 | prev = cursor; | |
654 | cursor = cursor->next; | |
655 | if (!cursor) | |
656 | prev->next = p; | |
657 | } | |
658 | } | |
659 | all_data = new_list; | |
660 | } | |
661 | ||
662 | ||
663 | static void draw_c_p_states(void) | |
664 | { | |
665 | struct power_event *pwr; | |
666 | pwr = power_events; | |
667 | ||
668 | /* | |
669 | * two pass drawing so that the P state bars are on top of the C state blocks | |
670 | */ | |
671 | while (pwr) { | |
672 | if (pwr->type == CSTATE) | |
673 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
674 | pwr = pwr->next; | |
675 | } | |
676 | ||
677 | pwr = power_events; | |
678 | while (pwr) { | |
679 | if (pwr->type == PSTATE) { | |
680 | if (!pwr->state) | |
681 | pwr->state = min_freq; | |
682 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
683 | } | |
684 | pwr = pwr->next; | |
685 | } | |
686 | } | |
687 | ||
688 | static void draw_wakeups(void) | |
689 | { | |
690 | struct wake_event *we; | |
691 | struct per_pid *p; | |
692 | struct per_pidcomm *c; | |
693 | ||
694 | we = wake_events; | |
695 | while (we) { | |
696 | int from = 0, to = 0; | |
4f1202c8 | 697 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
698 | |
699 | /* locate the column of the waker and wakee */ | |
700 | p = all_data; | |
701 | while (p) { | |
702 | if (p->pid == we->waker || p->pid == we->wakee) { | |
703 | c = p->all; | |
704 | while (c) { | |
705 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 706 | if (p->pid == we->waker && !from) { |
10274989 | 707 | from = c->Y; |
3bc2a39c | 708 | task_from = strdup(c->comm); |
4f1202c8 | 709 | } |
bbe2987b | 710 | if (p->pid == we->wakee && !to) { |
10274989 | 711 | to = c->Y; |
3bc2a39c | 712 | task_to = strdup(c->comm); |
4f1202c8 | 713 | } |
10274989 AV |
714 | } |
715 | c = c->next; | |
716 | } | |
3bc2a39c AV |
717 | c = p->all; |
718 | while (c) { | |
719 | if (p->pid == we->waker && !from) { | |
720 | from = c->Y; | |
721 | task_from = strdup(c->comm); | |
722 | } | |
723 | if (p->pid == we->wakee && !to) { | |
724 | to = c->Y; | |
725 | task_to = strdup(c->comm); | |
726 | } | |
727 | c = c->next; | |
728 | } | |
10274989 AV |
729 | } |
730 | p = p->next; | |
731 | } | |
732 | ||
3bc2a39c AV |
733 | if (!task_from) { |
734 | task_from = malloc(40); | |
735 | sprintf(task_from, "[%i]", we->waker); | |
736 | } | |
737 | if (!task_to) { | |
738 | task_to = malloc(40); | |
739 | sprintf(task_to, "[%i]", we->wakee); | |
740 | } | |
741 | ||
10274989 AV |
742 | if (we->waker == -1) |
743 | svg_interrupt(we->time, to); | |
744 | else if (from && to && abs(from - to) == 1) | |
745 | svg_wakeline(we->time, from, to); | |
746 | else | |
4f1202c8 | 747 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 748 | we = we->next; |
3bc2a39c AV |
749 | |
750 | free(task_from); | |
751 | free(task_to); | |
10274989 AV |
752 | } |
753 | } | |
754 | ||
755 | static void draw_cpu_usage(void) | |
756 | { | |
757 | struct per_pid *p; | |
758 | struct per_pidcomm *c; | |
759 | struct cpu_sample *sample; | |
760 | p = all_data; | |
761 | while (p) { | |
762 | c = p->all; | |
763 | while (c) { | |
764 | sample = c->samples; | |
765 | while (sample) { | |
766 | if (sample->type == TYPE_RUNNING) | |
767 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
768 | ||
769 | sample = sample->next; | |
770 | } | |
771 | c = c->next; | |
772 | } | |
773 | p = p->next; | |
774 | } | |
775 | } | |
776 | ||
777 | static void draw_process_bars(void) | |
778 | { | |
779 | struct per_pid *p; | |
780 | struct per_pidcomm *c; | |
781 | struct cpu_sample *sample; | |
782 | int Y = 0; | |
783 | ||
784 | Y = 2 * numcpus + 2; | |
785 | ||
786 | p = all_data; | |
787 | while (p) { | |
788 | c = p->all; | |
789 | while (c) { | |
790 | if (!c->display) { | |
791 | c->Y = 0; | |
792 | c = c->next; | |
793 | continue; | |
794 | } | |
795 | ||
a92fe7b3 | 796 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
797 | sample = c->samples; |
798 | while (sample) { | |
799 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 800 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
801 | if (sample->type == TYPE_BLOCKED) |
802 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
803 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 804 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
805 | sample = sample->next; |
806 | } | |
807 | ||
808 | if (c->comm) { | |
809 | char comm[256]; | |
810 | if (c->total_time > 5000000000) /* 5 seconds */ | |
811 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
812 | else | |
813 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
814 | ||
815 | svg_text(Y, c->start_time, comm); | |
816 | } | |
817 | c->Y = Y; | |
818 | Y++; | |
819 | c = c->next; | |
820 | } | |
821 | p = p->next; | |
822 | } | |
823 | } | |
824 | ||
bbe2987b AV |
825 | static void add_process_filter(const char *string) |
826 | { | |
e0dcd6fb ACM |
827 | int pid = strtoull(string, NULL, 10); |
828 | struct process_filter *filt = malloc(sizeof(*filt)); | |
bbe2987b | 829 | |
bbe2987b AV |
830 | if (!filt) |
831 | return; | |
832 | ||
833 | filt->name = strdup(string); | |
834 | filt->pid = pid; | |
835 | filt->next = process_filter; | |
836 | ||
837 | process_filter = filt; | |
838 | } | |
839 | ||
840 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
841 | { | |
842 | struct process_filter *filt; | |
843 | if (!process_filter) | |
844 | return 1; | |
845 | ||
846 | filt = process_filter; | |
847 | while (filt) { | |
848 | if (filt->pid && p->pid == filt->pid) | |
849 | return 1; | |
850 | if (strcmp(filt->name, c->comm) == 0) | |
851 | return 1; | |
852 | filt = filt->next; | |
853 | } | |
854 | return 0; | |
855 | } | |
856 | ||
857 | static int determine_display_tasks_filtered(void) | |
858 | { | |
859 | struct per_pid *p; | |
860 | struct per_pidcomm *c; | |
861 | int count = 0; | |
862 | ||
863 | p = all_data; | |
864 | while (p) { | |
865 | p->display = 0; | |
866 | if (p->start_time == 1) | |
867 | p->start_time = first_time; | |
868 | ||
869 | /* no exit marker, task kept running to the end */ | |
870 | if (p->end_time == 0) | |
871 | p->end_time = last_time; | |
872 | ||
873 | c = p->all; | |
874 | ||
875 | while (c) { | |
876 | c->display = 0; | |
877 | ||
878 | if (c->start_time == 1) | |
879 | c->start_time = first_time; | |
880 | ||
881 | if (passes_filter(p, c)) { | |
882 | c->display = 1; | |
883 | p->display = 1; | |
884 | count++; | |
885 | } | |
886 | ||
887 | if (c->end_time == 0) | |
888 | c->end_time = last_time; | |
889 | ||
890 | c = c->next; | |
891 | } | |
892 | p = p->next; | |
893 | } | |
894 | return count; | |
895 | } | |
896 | ||
10274989 AV |
897 | static int determine_display_tasks(u64 threshold) |
898 | { | |
899 | struct per_pid *p; | |
900 | struct per_pidcomm *c; | |
901 | int count = 0; | |
902 | ||
bbe2987b AV |
903 | if (process_filter) |
904 | return determine_display_tasks_filtered(); | |
905 | ||
10274989 AV |
906 | p = all_data; |
907 | while (p) { | |
908 | p->display = 0; | |
909 | if (p->start_time == 1) | |
910 | p->start_time = first_time; | |
911 | ||
912 | /* no exit marker, task kept running to the end */ | |
913 | if (p->end_time == 0) | |
914 | p->end_time = last_time; | |
39a90a8e | 915 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
916 | p->display = 1; |
917 | ||
918 | c = p->all; | |
919 | ||
920 | while (c) { | |
921 | c->display = 0; | |
922 | ||
923 | if (c->start_time == 1) | |
924 | c->start_time = first_time; | |
925 | ||
39a90a8e | 926 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
927 | c->display = 1; |
928 | count++; | |
929 | } | |
930 | ||
931 | if (c->end_time == 0) | |
932 | c->end_time = last_time; | |
933 | ||
934 | c = c->next; | |
935 | } | |
936 | p = p->next; | |
937 | } | |
938 | return count; | |
939 | } | |
940 | ||
941 | ||
942 | ||
943 | #define TIME_THRESH 10000000 | |
944 | ||
945 | static void write_svg_file(const char *filename) | |
946 | { | |
947 | u64 i; | |
948 | int count; | |
0a8eb275 | 949 | int thresh = TIME_THRESH; |
10274989 AV |
950 | |
951 | numcpus++; | |
952 | ||
953 | ||
0a8eb275 SF |
954 | /* We'd like to show at least proc_num tasks; |
955 | * be less picky if we have fewer */ | |
956 | do { | |
957 | count = determine_display_tasks(thresh); | |
958 | thresh /= 10; | |
54874e32 | 959 | } while (!process_filter && thresh && count < proc_num); |
10274989 | 960 | |
5094b655 | 961 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 962 | |
5094b655 | 963 | svg_time_grid(); |
10274989 AV |
964 | svg_legenda(); |
965 | ||
966 | for (i = 0; i < numcpus; i++) | |
967 | svg_cpu_box(i, max_freq, turbo_frequency); | |
968 | ||
969 | draw_cpu_usage(); | |
970 | draw_process_bars(); | |
971 | draw_c_p_states(); | |
972 | draw_wakeups(); | |
973 | ||
974 | svg_close(); | |
975 | } | |
976 | ||
70cb4e96 | 977 | static int __cmd_timechart(const char *output_name) |
5cbd0805 | 978 | { |
73bdc715 ACM |
979 | struct perf_tool perf_timechart = { |
980 | .comm = process_comm_event, | |
981 | .fork = process_fork_event, | |
982 | .exit = process_exit_event, | |
983 | .sample = process_sample_event, | |
984 | .ordered_samples = true, | |
985 | }; | |
5936678e JO |
986 | const struct perf_evsel_str_handler power_tracepoints[] = { |
987 | { "power:cpu_idle", process_sample_cpu_idle }, | |
988 | { "power:cpu_frequency", process_sample_cpu_frequency }, | |
989 | { "sched:sched_wakeup", process_sample_sched_wakeup }, | |
990 | { "sched:sched_switch", process_sample_sched_switch }, | |
991 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
992 | { "power:power_start", process_sample_power_start }, | |
993 | { "power:power_end", process_sample_power_end }, | |
994 | { "power:power_frequency", process_sample_power_frequency }, | |
995 | #endif | |
996 | }; | |
f5fc1412 JO |
997 | struct perf_data_file file = { |
998 | .path = input_name, | |
999 | .mode = PERF_DATA_MODE_READ, | |
1000 | }; | |
1001 | ||
1002 | struct perf_session *session = perf_session__new(&file, false, | |
1003 | &perf_timechart); | |
d549c769 | 1004 | int ret = -EINVAL; |
10274989 | 1005 | |
94c744b6 ACM |
1006 | if (session == NULL) |
1007 | return -ENOMEM; | |
1008 | ||
d549c769 ACM |
1009 | if (!perf_session__has_traces(session, "timechart record")) |
1010 | goto out_delete; | |
1011 | ||
5936678e JO |
1012 | if (perf_session__set_tracepoints_handlers(session, |
1013 | power_tracepoints)) { | |
1014 | pr_err("Initializing session tracepoint handlers failed\n"); | |
1015 | goto out_delete; | |
1016 | } | |
1017 | ||
45694aa7 | 1018 | ret = perf_session__process_events(session, &perf_timechart); |
5cbd0805 | 1019 | if (ret) |
94c744b6 | 1020 | goto out_delete; |
10274989 | 1021 | |
10274989 AV |
1022 | end_sample_processing(); |
1023 | ||
1024 | sort_pids(); | |
1025 | ||
1026 | write_svg_file(output_name); | |
1027 | ||
6beba7ad ACM |
1028 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1029 | (last_time - first_time) / 1000000000.0, output_name); | |
94c744b6 ACM |
1030 | out_delete: |
1031 | perf_session__delete(session); | |
1032 | return ret; | |
10274989 AV |
1033 | } |
1034 | ||
3c09eebd AV |
1035 | static int __cmd_record(int argc, const char **argv) |
1036 | { | |
73bdc715 ACM |
1037 | #ifdef SUPPORT_OLD_POWER_EVENTS |
1038 | const char * const record_old_args[] = { | |
4a4d371a | 1039 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1040 | "-e", "power:power_start", |
1041 | "-e", "power:power_end", | |
1042 | "-e", "power:power_frequency", | |
1043 | "-e", "sched:sched_wakeup", | |
1044 | "-e", "sched:sched_switch", | |
1045 | }; | |
1046 | #endif | |
1047 | const char * const record_new_args[] = { | |
4a4d371a | 1048 | "record", "-a", "-R", "-c", "1", |
73bdc715 ACM |
1049 | "-e", "power:cpu_frequency", |
1050 | "-e", "power:cpu_idle", | |
1051 | "-e", "sched:sched_wakeup", | |
1052 | "-e", "sched:sched_switch", | |
1053 | }; | |
3c09eebd AV |
1054 | unsigned int rec_argc, i, j; |
1055 | const char **rec_argv; | |
20c457b8 TR |
1056 | const char * const *record_args = record_new_args; |
1057 | unsigned int record_elems = ARRAY_SIZE(record_new_args); | |
1058 | ||
1059 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
1060 | if (!is_valid_tracepoint("power:cpu_idle") && | |
1061 | is_valid_tracepoint("power:power_start")) { | |
1062 | use_old_power_events = 1; | |
1063 | record_args = record_old_args; | |
1064 | record_elems = ARRAY_SIZE(record_old_args); | |
1065 | } | |
1066 | #endif | |
3c09eebd | 1067 | |
20c457b8 | 1068 | rec_argc = record_elems + argc - 1; |
3c09eebd AV |
1069 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1070 | ||
ce47dc56 CS |
1071 | if (rec_argv == NULL) |
1072 | return -ENOMEM; | |
1073 | ||
20c457b8 | 1074 | for (i = 0; i < record_elems; i++) |
3c09eebd AV |
1075 | rec_argv[i] = strdup(record_args[i]); |
1076 | ||
1077 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1078 | rec_argv[i] = argv[j]; | |
1079 | ||
1080 | return cmd_record(i, rec_argv, NULL); | |
1081 | } | |
1082 | ||
bbe2987b | 1083 | static int |
1d037ca1 IT |
1084 | parse_process(const struct option *opt __maybe_unused, const char *arg, |
1085 | int __maybe_unused unset) | |
bbe2987b AV |
1086 | { |
1087 | if (arg) | |
1088 | add_process_filter(arg); | |
1089 | return 0; | |
1090 | } | |
1091 | ||
73bdc715 ACM |
1092 | int cmd_timechart(int argc, const char **argv, |
1093 | const char *prefix __maybe_unused) | |
1094 | { | |
73bdc715 ACM |
1095 | const char *output_name = "output.svg"; |
1096 | const struct option options[] = { | |
1097 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
1098 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1099 | OPT_INTEGER('w', "width", &svg_page_width, "page width"), | |
1100 | OPT_BOOLEAN('P', "power-only", &power_only, "output power data only"), | |
bbe2987b AV |
1101 | OPT_CALLBACK('p', "process", NULL, "process", |
1102 | "process selector. Pass a pid or process name.", | |
1103 | parse_process), | |
ec5761ea DA |
1104 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
1105 | "Look for files with symbols relative to this directory"), | |
54874e32 SF |
1106 | OPT_INTEGER('n', "proc-num", &proc_num, |
1107 | "min. number of tasks to print"), | |
10274989 | 1108 | OPT_END() |
73bdc715 ACM |
1109 | }; |
1110 | const char * const timechart_usage[] = { | |
1111 | "perf timechart [<options>] {record}", | |
1112 | NULL | |
1113 | }; | |
10274989 | 1114 | |
3c09eebd AV |
1115 | argc = parse_options(argc, argv, options, timechart_usage, |
1116 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1117 | |
655000e7 ACM |
1118 | symbol__init(); |
1119 | ||
3c09eebd AV |
1120 | if (argc && !strncmp(argv[0], "rec", 3)) |
1121 | return __cmd_record(argc, argv); | |
1122 | else if (argc) | |
1123 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1124 | |
1125 | setup_pager(); | |
1126 | ||
70cb4e96 | 1127 | return __cmd_timechart(output_name); |
10274989 | 1128 | } |