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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" | |
e3f42609 | 22 | #include "util/evsel.h" |
10274989 AV |
23 | #include <linux/rbtree.h> |
24 | #include "util/symbol.h" | |
10274989 AV |
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 | 32 | #include "util/event.h" |
301a0b02 | 33 | #include "util/session.h" |
10274989 | 34 | #include "util/svghelper.h" |
45694aa7 | 35 | #include "util/tool.h" |
10274989 | 36 | |
20c457b8 TR |
37 | #define SUPPORT_OLD_POWER_EVENTS 1 |
38 | #define PWR_EVENT_EXIT -1 | |
39 | ||
40 | ||
efad1415 RR |
41 | static const char *input_name; |
42 | static const char *output_name = "output.svg"; | |
10274989 | 43 | |
10274989 AV |
44 | static unsigned int numcpus; |
45 | static u64 min_freq; /* Lowest CPU frequency seen */ | |
46 | static u64 max_freq; /* Highest CPU frequency seen */ | |
47 | static u64 turbo_frequency; | |
48 | ||
49 | static u64 first_time, last_time; | |
50 | ||
c0555642 | 51 | static bool power_only; |
39a90a8e | 52 | |
10274989 | 53 | |
10274989 AV |
54 | struct per_pid; |
55 | struct per_pidcomm; | |
56 | ||
57 | struct cpu_sample; | |
58 | struct power_event; | |
59 | struct wake_event; | |
60 | ||
61 | struct sample_wrapper; | |
62 | ||
63 | /* | |
64 | * Datastructure layout: | |
65 | * We keep an list of "pid"s, matching the kernels notion of a task struct. | |
66 | * Each "pid" entry, has a list of "comm"s. | |
67 | * this is because we want to track different programs different, while | |
68 | * exec will reuse the original pid (by design). | |
69 | * Each comm has a list of samples that will be used to draw | |
70 | * final graph. | |
71 | */ | |
72 | ||
73 | struct per_pid { | |
74 | struct per_pid *next; | |
75 | ||
76 | int pid; | |
77 | int ppid; | |
78 | ||
79 | u64 start_time; | |
80 | u64 end_time; | |
81 | u64 total_time; | |
82 | int display; | |
83 | ||
84 | struct per_pidcomm *all; | |
85 | struct per_pidcomm *current; | |
10274989 AV |
86 | }; |
87 | ||
88 | ||
89 | struct per_pidcomm { | |
90 | struct per_pidcomm *next; | |
91 | ||
92 | u64 start_time; | |
93 | u64 end_time; | |
94 | u64 total_time; | |
95 | ||
96 | int Y; | |
97 | int display; | |
98 | ||
99 | long state; | |
100 | u64 state_since; | |
101 | ||
102 | char *comm; | |
103 | ||
104 | struct cpu_sample *samples; | |
105 | }; | |
106 | ||
107 | struct sample_wrapper { | |
108 | struct sample_wrapper *next; | |
109 | ||
110 | u64 timestamp; | |
111 | unsigned char data[0]; | |
112 | }; | |
113 | ||
114 | #define TYPE_NONE 0 | |
115 | #define TYPE_RUNNING 1 | |
116 | #define TYPE_WAITING 2 | |
117 | #define TYPE_BLOCKED 3 | |
118 | ||
119 | struct cpu_sample { | |
120 | struct cpu_sample *next; | |
121 | ||
122 | u64 start_time; | |
123 | u64 end_time; | |
124 | int type; | |
125 | int cpu; | |
126 | }; | |
127 | ||
128 | static struct per_pid *all_data; | |
129 | ||
130 | #define CSTATE 1 | |
131 | #define PSTATE 2 | |
132 | ||
133 | struct power_event { | |
134 | struct power_event *next; | |
135 | int type; | |
136 | int state; | |
137 | u64 start_time; | |
138 | u64 end_time; | |
139 | int cpu; | |
140 | }; | |
141 | ||
142 | struct wake_event { | |
143 | struct wake_event *next; | |
144 | int waker; | |
145 | int wakee; | |
146 | u64 time; | |
147 | }; | |
148 | ||
149 | static struct power_event *power_events; | |
150 | static struct wake_event *wake_events; | |
151 | ||
bbe2987b AV |
152 | struct process_filter; |
153 | struct process_filter { | |
5cbd0805 LZ |
154 | char *name; |
155 | int pid; | |
156 | struct process_filter *next; | |
bbe2987b AV |
157 | }; |
158 | ||
159 | static struct process_filter *process_filter; | |
160 | ||
161 | ||
10274989 AV |
162 | static struct per_pid *find_create_pid(int pid) |
163 | { | |
164 | struct per_pid *cursor = all_data; | |
165 | ||
166 | while (cursor) { | |
167 | if (cursor->pid == pid) | |
168 | return cursor; | |
169 | cursor = cursor->next; | |
170 | } | |
171 | cursor = malloc(sizeof(struct per_pid)); | |
172 | assert(cursor != NULL); | |
173 | memset(cursor, 0, sizeof(struct per_pid)); | |
174 | cursor->pid = pid; | |
175 | cursor->next = all_data; | |
176 | all_data = cursor; | |
177 | return cursor; | |
178 | } | |
179 | ||
180 | static void pid_set_comm(int pid, char *comm) | |
181 | { | |
182 | struct per_pid *p; | |
183 | struct per_pidcomm *c; | |
184 | p = find_create_pid(pid); | |
185 | c = p->all; | |
186 | while (c) { | |
187 | if (c->comm && strcmp(c->comm, comm) == 0) { | |
188 | p->current = c; | |
189 | return; | |
190 | } | |
191 | if (!c->comm) { | |
192 | c->comm = strdup(comm); | |
193 | p->current = c; | |
194 | return; | |
195 | } | |
196 | c = c->next; | |
197 | } | |
198 | c = malloc(sizeof(struct per_pidcomm)); | |
199 | assert(c != NULL); | |
200 | memset(c, 0, sizeof(struct per_pidcomm)); | |
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) { | |
242 | c = malloc(sizeof(struct per_pidcomm)); | |
243 | assert(c != NULL); | |
244 | memset(c, 0, sizeof(struct per_pidcomm)); | |
245 | p->current = c; | |
246 | c->next = p->all; | |
247 | p->all = c; | |
248 | } | |
249 | ||
250 | sample = malloc(sizeof(struct cpu_sample)); | |
251 | assert(sample != NULL); | |
252 | memset(sample, 0, sizeof(struct cpu_sample)); | |
253 | sample->start_time = start; | |
254 | sample->end_time = end; | |
255 | sample->type = type; | |
256 | sample->next = c->samples; | |
257 | sample->cpu = cpu; | |
258 | c->samples = sample; | |
259 | ||
260 | if (sample->type == TYPE_RUNNING && end > start && start > 0) { | |
261 | c->total_time += (end-start); | |
262 | p->total_time += (end-start); | |
263 | } | |
264 | ||
265 | if (c->start_time == 0 || c->start_time > start) | |
266 | c->start_time = start; | |
267 | if (p->start_time == 0 || p->start_time > start) | |
268 | p->start_time = start; | |
10274989 AV |
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 | ||
1d037ca1 | 278 | static int process_comm_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 279 | union perf_event *event, |
1d037ca1 IT |
280 | struct perf_sample *sample __maybe_unused, |
281 | struct machine *machine __maybe_unused) | |
10274989 | 282 | { |
8f06d7e6 | 283 | pid_set_comm(event->comm.tid, event->comm.comm); |
10274989 AV |
284 | return 0; |
285 | } | |
d8f66248 | 286 | |
1d037ca1 | 287 | static int process_fork_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 288 | union perf_event *event, |
1d037ca1 IT |
289 | struct perf_sample *sample __maybe_unused, |
290 | struct machine *machine __maybe_unused) | |
10274989 AV |
291 | { |
292 | pid_fork(event->fork.pid, event->fork.ppid, event->fork.time); | |
293 | return 0; | |
294 | } | |
295 | ||
1d037ca1 | 296 | static int process_exit_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 297 | union perf_event *event, |
1d037ca1 IT |
298 | struct perf_sample *sample __maybe_unused, |
299 | struct machine *machine __maybe_unused) | |
10274989 AV |
300 | { |
301 | pid_exit(event->fork.pid, event->fork.time); | |
302 | return 0; | |
303 | } | |
304 | ||
305 | struct trace_entry { | |
10274989 AV |
306 | unsigned short type; |
307 | unsigned char flags; | |
308 | unsigned char preempt_count; | |
309 | int pid; | |
028c5152 | 310 | int lock_depth; |
10274989 AV |
311 | }; |
312 | ||
20c457b8 TR |
313 | #ifdef SUPPORT_OLD_POWER_EVENTS |
314 | static int use_old_power_events; | |
315 | struct power_entry_old { | |
10274989 | 316 | struct trace_entry te; |
4c21adf2 TR |
317 | u64 type; |
318 | u64 value; | |
319 | u64 cpu_id; | |
10274989 | 320 | }; |
20c457b8 TR |
321 | #endif |
322 | ||
323 | struct power_processor_entry { | |
324 | struct trace_entry te; | |
325 | u32 state; | |
326 | u32 cpu_id; | |
327 | }; | |
10274989 AV |
328 | |
329 | #define TASK_COMM_LEN 16 | |
330 | struct wakeup_entry { | |
331 | struct trace_entry te; | |
332 | char comm[TASK_COMM_LEN]; | |
333 | int pid; | |
334 | int prio; | |
335 | int success; | |
336 | }; | |
337 | ||
338 | /* | |
339 | * trace_flag_type is an enumeration that holds different | |
340 | * states when a trace occurs. These are: | |
341 | * IRQS_OFF - interrupts were disabled | |
342 | * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags | |
343 | * NEED_RESCED - reschedule is requested | |
344 | * HARDIRQ - inside an interrupt handler | |
345 | * SOFTIRQ - inside a softirq handler | |
346 | */ | |
347 | enum trace_flag_type { | |
348 | TRACE_FLAG_IRQS_OFF = 0x01, | |
349 | TRACE_FLAG_IRQS_NOSUPPORT = 0x02, | |
350 | TRACE_FLAG_NEED_RESCHED = 0x04, | |
351 | TRACE_FLAG_HARDIRQ = 0x08, | |
352 | TRACE_FLAG_SOFTIRQ = 0x10, | |
353 | }; | |
354 | ||
355 | ||
356 | ||
357 | struct sched_switch { | |
358 | struct trace_entry te; | |
359 | char prev_comm[TASK_COMM_LEN]; | |
360 | int prev_pid; | |
361 | int prev_prio; | |
362 | long prev_state; /* Arjan weeps. */ | |
363 | char next_comm[TASK_COMM_LEN]; | |
364 | int next_pid; | |
365 | int next_prio; | |
366 | }; | |
367 | ||
368 | static void c_state_start(int cpu, u64 timestamp, int state) | |
369 | { | |
370 | cpus_cstate_start_times[cpu] = timestamp; | |
371 | cpus_cstate_state[cpu] = state; | |
372 | } | |
373 | ||
374 | static void c_state_end(int cpu, u64 timestamp) | |
375 | { | |
376 | struct power_event *pwr; | |
377 | pwr = malloc(sizeof(struct power_event)); | |
378 | if (!pwr) | |
379 | return; | |
380 | memset(pwr, 0, sizeof(struct power_event)); | |
381 | ||
382 | pwr->state = cpus_cstate_state[cpu]; | |
383 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
384 | pwr->end_time = timestamp; | |
385 | pwr->cpu = cpu; | |
386 | pwr->type = CSTATE; | |
387 | pwr->next = power_events; | |
388 | ||
389 | power_events = pwr; | |
390 | } | |
391 | ||
392 | static void p_state_change(int cpu, u64 timestamp, u64 new_freq) | |
393 | { | |
394 | struct power_event *pwr; | |
395 | pwr = malloc(sizeof(struct power_event)); | |
396 | ||
397 | if (new_freq > 8000000) /* detect invalid data */ | |
398 | return; | |
399 | ||
400 | if (!pwr) | |
401 | return; | |
402 | memset(pwr, 0, sizeof(struct power_event)); | |
403 | ||
404 | pwr->state = cpus_pstate_state[cpu]; | |
405 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
406 | pwr->end_time = timestamp; | |
407 | pwr->cpu = cpu; | |
408 | pwr->type = PSTATE; | |
409 | pwr->next = power_events; | |
410 | ||
411 | if (!pwr->start_time) | |
412 | pwr->start_time = first_time; | |
413 | ||
414 | power_events = pwr; | |
415 | ||
416 | cpus_pstate_state[cpu] = new_freq; | |
417 | cpus_pstate_start_times[cpu] = timestamp; | |
418 | ||
419 | if ((u64)new_freq > max_freq) | |
420 | max_freq = new_freq; | |
421 | ||
422 | if (new_freq < min_freq || min_freq == 0) | |
423 | min_freq = new_freq; | |
424 | ||
425 | if (new_freq == max_freq - 1000) | |
426 | turbo_frequency = max_freq; | |
427 | } | |
428 | ||
429 | static void | |
430 | sched_wakeup(int cpu, u64 timestamp, int pid, struct trace_entry *te) | |
431 | { | |
432 | struct wake_event *we; | |
433 | struct per_pid *p; | |
434 | struct wakeup_entry *wake = (void *)te; | |
435 | ||
436 | we = malloc(sizeof(struct wake_event)); | |
437 | if (!we) | |
438 | return; | |
439 | ||
440 | memset(we, 0, sizeof(struct wake_event)); | |
441 | we->time = timestamp; | |
442 | we->waker = pid; | |
443 | ||
444 | if ((te->flags & TRACE_FLAG_HARDIRQ) || (te->flags & TRACE_FLAG_SOFTIRQ)) | |
445 | we->waker = -1; | |
446 | ||
447 | we->wakee = wake->pid; | |
448 | we->next = wake_events; | |
449 | wake_events = we; | |
450 | p = find_create_pid(we->wakee); | |
451 | ||
452 | if (p && p->current && p->current->state == TYPE_NONE) { | |
453 | p->current->state_since = timestamp; | |
454 | p->current->state = TYPE_WAITING; | |
455 | } | |
456 | if (p && p->current && p->current->state == TYPE_BLOCKED) { | |
457 | pid_put_sample(p->pid, p->current->state, cpu, p->current->state_since, timestamp); | |
458 | p->current->state_since = timestamp; | |
459 | p->current->state = TYPE_WAITING; | |
460 | } | |
461 | } | |
462 | ||
463 | static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) | |
464 | { | |
465 | struct per_pid *p = NULL, *prev_p; | |
466 | struct sched_switch *sw = (void *)te; | |
467 | ||
468 | ||
469 | prev_p = find_create_pid(sw->prev_pid); | |
470 | ||
471 | p = find_create_pid(sw->next_pid); | |
472 | ||
473 | if (prev_p->current && prev_p->current->state != TYPE_NONE) | |
474 | pid_put_sample(sw->prev_pid, TYPE_RUNNING, cpu, prev_p->current->state_since, timestamp); | |
475 | if (p && p->current) { | |
476 | if (p->current->state != TYPE_NONE) | |
477 | pid_put_sample(sw->next_pid, p->current->state, cpu, p->current->state_since, timestamp); | |
478 | ||
33e26a1b JL |
479 | p->current->state_since = timestamp; |
480 | p->current->state = TYPE_RUNNING; | |
10274989 AV |
481 | } |
482 | ||
483 | if (prev_p->current) { | |
484 | prev_p->current->state = TYPE_NONE; | |
485 | prev_p->current->state_since = timestamp; | |
486 | if (sw->prev_state & 2) | |
487 | prev_p->current->state = TYPE_BLOCKED; | |
488 | if (sw->prev_state == 0) | |
489 | prev_p->current->state = TYPE_WAITING; | |
490 | } | |
491 | } | |
492 | ||
493 | ||
1d037ca1 IT |
494 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
495 | union perf_event *event __maybe_unused, | |
8d50e5b4 | 496 | struct perf_sample *sample, |
e3f42609 | 497 | struct perf_evsel *evsel, |
1d037ca1 | 498 | struct machine *machine __maybe_unused) |
10274989 | 499 | { |
10274989 AV |
500 | struct trace_entry *te; |
501 | ||
e3f42609 | 502 | if (evsel->attr.sample_type & PERF_SAMPLE_TIME) { |
640c03ce ACM |
503 | if (!first_time || first_time > sample->time) |
504 | first_time = sample->time; | |
505 | if (last_time < sample->time) | |
506 | last_time = sample->time; | |
10274989 | 507 | } |
180f95e2 | 508 | |
640c03ce | 509 | te = (void *)sample->raw_data; |
e3f42609 | 510 | if ((evsel->attr.sample_type & PERF_SAMPLE_RAW) && sample->raw_size > 0) { |
10274989 | 511 | char *event_str; |
20c457b8 TR |
512 | #ifdef SUPPORT_OLD_POWER_EVENTS |
513 | struct power_entry_old *peo; | |
514 | peo = (void *)te; | |
515 | #endif | |
9e69c210 ACM |
516 | /* |
517 | * FIXME: use evsel, its already mapped from id to perf_evsel, | |
518 | * remove perf_header__find_event infrastructure bits. | |
519 | * Mapping all these "power:cpu_idle" strings to the tracepoint | |
520 | * ID and then just comparing against evsel->attr.config. | |
521 | * | |
522 | * e.g.: | |
523 | * | |
524 | * if (evsel->attr.config == power_cpu_idle_id) | |
525 | */ | |
10274989 AV |
526 | event_str = perf_header__find_event(te->type); |
527 | ||
528 | if (!event_str) | |
529 | return 0; | |
530 | ||
54b08f5f TR |
531 | if (sample->cpu > numcpus) |
532 | numcpus = sample->cpu; | |
533 | ||
20c457b8 TR |
534 | if (strcmp(event_str, "power:cpu_idle") == 0) { |
535 | struct power_processor_entry *ppe = (void *)te; | |
536 | if (ppe->state == (u32)PWR_EVENT_EXIT) | |
537 | c_state_end(ppe->cpu_id, sample->time); | |
538 | else | |
539 | c_state_start(ppe->cpu_id, sample->time, | |
540 | ppe->state); | |
541 | } | |
542 | else if (strcmp(event_str, "power:cpu_frequency") == 0) { | |
543 | struct power_processor_entry *ppe = (void *)te; | |
544 | p_state_change(ppe->cpu_id, sample->time, ppe->state); | |
545 | } | |
10274989 | 546 | |
20c457b8 | 547 | else if (strcmp(event_str, "sched:sched_wakeup") == 0) |
640c03ce | 548 | sched_wakeup(sample->cpu, sample->time, sample->pid, te); |
10274989 | 549 | |
20c457b8 | 550 | else if (strcmp(event_str, "sched:sched_switch") == 0) |
640c03ce | 551 | sched_switch(sample->cpu, sample->time, te); |
20c457b8 TR |
552 | |
553 | #ifdef SUPPORT_OLD_POWER_EVENTS | |
554 | if (use_old_power_events) { | |
555 | if (strcmp(event_str, "power:power_start") == 0) | |
556 | c_state_start(peo->cpu_id, sample->time, | |
557 | peo->value); | |
558 | ||
559 | else if (strcmp(event_str, "power:power_end") == 0) | |
560 | c_state_end(sample->cpu, sample->time); | |
561 | ||
562 | else if (strcmp(event_str, | |
563 | "power:power_frequency") == 0) | |
564 | p_state_change(peo->cpu_id, sample->time, | |
565 | peo->value); | |
566 | } | |
567 | #endif | |
10274989 AV |
568 | } |
569 | return 0; | |
570 | } | |
571 | ||
572 | /* | |
573 | * After the last sample we need to wrap up the current C/P state | |
574 | * and close out each CPU for these. | |
575 | */ | |
576 | static void end_sample_processing(void) | |
577 | { | |
578 | u64 cpu; | |
579 | struct power_event *pwr; | |
580 | ||
39a90a8e | 581 | for (cpu = 0; cpu <= numcpus; cpu++) { |
10274989 AV |
582 | pwr = malloc(sizeof(struct power_event)); |
583 | if (!pwr) | |
584 | return; | |
585 | memset(pwr, 0, sizeof(struct power_event)); | |
586 | ||
587 | /* C state */ | |
588 | #if 0 | |
589 | pwr->state = cpus_cstate_state[cpu]; | |
590 | pwr->start_time = cpus_cstate_start_times[cpu]; | |
591 | pwr->end_time = last_time; | |
592 | pwr->cpu = cpu; | |
593 | pwr->type = CSTATE; | |
594 | pwr->next = power_events; | |
595 | ||
596 | power_events = pwr; | |
597 | #endif | |
598 | /* P state */ | |
599 | ||
600 | pwr = malloc(sizeof(struct power_event)); | |
601 | if (!pwr) | |
602 | return; | |
603 | memset(pwr, 0, sizeof(struct power_event)); | |
604 | ||
605 | pwr->state = cpus_pstate_state[cpu]; | |
606 | pwr->start_time = cpus_pstate_start_times[cpu]; | |
607 | pwr->end_time = last_time; | |
608 | pwr->cpu = cpu; | |
609 | pwr->type = PSTATE; | |
610 | pwr->next = power_events; | |
611 | ||
612 | if (!pwr->start_time) | |
613 | pwr->start_time = first_time; | |
614 | if (!pwr->state) | |
615 | pwr->state = min_freq; | |
616 | power_events = pwr; | |
617 | } | |
618 | } | |
619 | ||
10274989 AV |
620 | /* |
621 | * Sort the pid datastructure | |
622 | */ | |
623 | static void sort_pids(void) | |
624 | { | |
625 | struct per_pid *new_list, *p, *cursor, *prev; | |
626 | /* sort by ppid first, then by pid, lowest to highest */ | |
627 | ||
628 | new_list = NULL; | |
629 | ||
630 | while (all_data) { | |
631 | p = all_data; | |
632 | all_data = p->next; | |
633 | p->next = NULL; | |
634 | ||
635 | if (new_list == NULL) { | |
636 | new_list = p; | |
637 | p->next = NULL; | |
638 | continue; | |
639 | } | |
640 | prev = NULL; | |
641 | cursor = new_list; | |
642 | while (cursor) { | |
643 | if (cursor->ppid > p->ppid || | |
644 | (cursor->ppid == p->ppid && cursor->pid > p->pid)) { | |
645 | /* must insert before */ | |
646 | if (prev) { | |
647 | p->next = prev->next; | |
648 | prev->next = p; | |
649 | cursor = NULL; | |
650 | continue; | |
651 | } else { | |
652 | p->next = new_list; | |
653 | new_list = p; | |
654 | cursor = NULL; | |
655 | continue; | |
656 | } | |
657 | } | |
658 | ||
659 | prev = cursor; | |
660 | cursor = cursor->next; | |
661 | if (!cursor) | |
662 | prev->next = p; | |
663 | } | |
664 | } | |
665 | all_data = new_list; | |
666 | } | |
667 | ||
668 | ||
669 | static void draw_c_p_states(void) | |
670 | { | |
671 | struct power_event *pwr; | |
672 | pwr = power_events; | |
673 | ||
674 | /* | |
675 | * two pass drawing so that the P state bars are on top of the C state blocks | |
676 | */ | |
677 | while (pwr) { | |
678 | if (pwr->type == CSTATE) | |
679 | svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
680 | pwr = pwr->next; | |
681 | } | |
682 | ||
683 | pwr = power_events; | |
684 | while (pwr) { | |
685 | if (pwr->type == PSTATE) { | |
686 | if (!pwr->state) | |
687 | pwr->state = min_freq; | |
688 | svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state); | |
689 | } | |
690 | pwr = pwr->next; | |
691 | } | |
692 | } | |
693 | ||
694 | static void draw_wakeups(void) | |
695 | { | |
696 | struct wake_event *we; | |
697 | struct per_pid *p; | |
698 | struct per_pidcomm *c; | |
699 | ||
700 | we = wake_events; | |
701 | while (we) { | |
702 | int from = 0, to = 0; | |
4f1202c8 | 703 | char *task_from = NULL, *task_to = NULL; |
10274989 AV |
704 | |
705 | /* locate the column of the waker and wakee */ | |
706 | p = all_data; | |
707 | while (p) { | |
708 | if (p->pid == we->waker || p->pid == we->wakee) { | |
709 | c = p->all; | |
710 | while (c) { | |
711 | if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { | |
bbe2987b | 712 | if (p->pid == we->waker && !from) { |
10274989 | 713 | from = c->Y; |
3bc2a39c | 714 | task_from = strdup(c->comm); |
4f1202c8 | 715 | } |
bbe2987b | 716 | if (p->pid == we->wakee && !to) { |
10274989 | 717 | to = c->Y; |
3bc2a39c | 718 | task_to = strdup(c->comm); |
4f1202c8 | 719 | } |
10274989 AV |
720 | } |
721 | c = c->next; | |
722 | } | |
3bc2a39c AV |
723 | c = p->all; |
724 | while (c) { | |
725 | if (p->pid == we->waker && !from) { | |
726 | from = c->Y; | |
727 | task_from = strdup(c->comm); | |
728 | } | |
729 | if (p->pid == we->wakee && !to) { | |
730 | to = c->Y; | |
731 | task_to = strdup(c->comm); | |
732 | } | |
733 | c = c->next; | |
734 | } | |
10274989 AV |
735 | } |
736 | p = p->next; | |
737 | } | |
738 | ||
3bc2a39c AV |
739 | if (!task_from) { |
740 | task_from = malloc(40); | |
741 | sprintf(task_from, "[%i]", we->waker); | |
742 | } | |
743 | if (!task_to) { | |
744 | task_to = malloc(40); | |
745 | sprintf(task_to, "[%i]", we->wakee); | |
746 | } | |
747 | ||
10274989 AV |
748 | if (we->waker == -1) |
749 | svg_interrupt(we->time, to); | |
750 | else if (from && to && abs(from - to) == 1) | |
751 | svg_wakeline(we->time, from, to); | |
752 | else | |
4f1202c8 | 753 | svg_partial_wakeline(we->time, from, task_from, to, task_to); |
10274989 | 754 | we = we->next; |
3bc2a39c AV |
755 | |
756 | free(task_from); | |
757 | free(task_to); | |
10274989 AV |
758 | } |
759 | } | |
760 | ||
761 | static void draw_cpu_usage(void) | |
762 | { | |
763 | struct per_pid *p; | |
764 | struct per_pidcomm *c; | |
765 | struct cpu_sample *sample; | |
766 | p = all_data; | |
767 | while (p) { | |
768 | c = p->all; | |
769 | while (c) { | |
770 | sample = c->samples; | |
771 | while (sample) { | |
772 | if (sample->type == TYPE_RUNNING) | |
773 | svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); | |
774 | ||
775 | sample = sample->next; | |
776 | } | |
777 | c = c->next; | |
778 | } | |
779 | p = p->next; | |
780 | } | |
781 | } | |
782 | ||
783 | static void draw_process_bars(void) | |
784 | { | |
785 | struct per_pid *p; | |
786 | struct per_pidcomm *c; | |
787 | struct cpu_sample *sample; | |
788 | int Y = 0; | |
789 | ||
790 | Y = 2 * numcpus + 2; | |
791 | ||
792 | p = all_data; | |
793 | while (p) { | |
794 | c = p->all; | |
795 | while (c) { | |
796 | if (!c->display) { | |
797 | c->Y = 0; | |
798 | c = c->next; | |
799 | continue; | |
800 | } | |
801 | ||
a92fe7b3 | 802 | svg_box(Y, c->start_time, c->end_time, "process"); |
10274989 AV |
803 | sample = c->samples; |
804 | while (sample) { | |
805 | if (sample->type == TYPE_RUNNING) | |
a92fe7b3 | 806 | svg_sample(Y, sample->cpu, sample->start_time, sample->end_time); |
10274989 AV |
807 | if (sample->type == TYPE_BLOCKED) |
808 | svg_box(Y, sample->start_time, sample->end_time, "blocked"); | |
809 | if (sample->type == TYPE_WAITING) | |
a92fe7b3 | 810 | svg_waiting(Y, sample->start_time, sample->end_time); |
10274989 AV |
811 | sample = sample->next; |
812 | } | |
813 | ||
814 | if (c->comm) { | |
815 | char comm[256]; | |
816 | if (c->total_time > 5000000000) /* 5 seconds */ | |
817 | sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0); | |
818 | else | |
819 | sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0); | |
820 | ||
821 | svg_text(Y, c->start_time, comm); | |
822 | } | |
823 | c->Y = Y; | |
824 | Y++; | |
825 | c = c->next; | |
826 | } | |
827 | p = p->next; | |
828 | } | |
829 | } | |
830 | ||
bbe2987b AV |
831 | static void add_process_filter(const char *string) |
832 | { | |
833 | struct process_filter *filt; | |
834 | int pid; | |
835 | ||
836 | pid = strtoull(string, NULL, 10); | |
837 | filt = malloc(sizeof(struct process_filter)); | |
838 | if (!filt) | |
839 | return; | |
840 | ||
841 | filt->name = strdup(string); | |
842 | filt->pid = pid; | |
843 | filt->next = process_filter; | |
844 | ||
845 | process_filter = filt; | |
846 | } | |
847 | ||
848 | static int passes_filter(struct per_pid *p, struct per_pidcomm *c) | |
849 | { | |
850 | struct process_filter *filt; | |
851 | if (!process_filter) | |
852 | return 1; | |
853 | ||
854 | filt = process_filter; | |
855 | while (filt) { | |
856 | if (filt->pid && p->pid == filt->pid) | |
857 | return 1; | |
858 | if (strcmp(filt->name, c->comm) == 0) | |
859 | return 1; | |
860 | filt = filt->next; | |
861 | } | |
862 | return 0; | |
863 | } | |
864 | ||
865 | static int determine_display_tasks_filtered(void) | |
866 | { | |
867 | struct per_pid *p; | |
868 | struct per_pidcomm *c; | |
869 | int count = 0; | |
870 | ||
871 | p = all_data; | |
872 | while (p) { | |
873 | p->display = 0; | |
874 | if (p->start_time == 1) | |
875 | p->start_time = first_time; | |
876 | ||
877 | /* no exit marker, task kept running to the end */ | |
878 | if (p->end_time == 0) | |
879 | p->end_time = last_time; | |
880 | ||
881 | c = p->all; | |
882 | ||
883 | while (c) { | |
884 | c->display = 0; | |
885 | ||
886 | if (c->start_time == 1) | |
887 | c->start_time = first_time; | |
888 | ||
889 | if (passes_filter(p, c)) { | |
890 | c->display = 1; | |
891 | p->display = 1; | |
892 | count++; | |
893 | } | |
894 | ||
895 | if (c->end_time == 0) | |
896 | c->end_time = last_time; | |
897 | ||
898 | c = c->next; | |
899 | } | |
900 | p = p->next; | |
901 | } | |
902 | return count; | |
903 | } | |
904 | ||
10274989 AV |
905 | static int determine_display_tasks(u64 threshold) |
906 | { | |
907 | struct per_pid *p; | |
908 | struct per_pidcomm *c; | |
909 | int count = 0; | |
910 | ||
bbe2987b AV |
911 | if (process_filter) |
912 | return determine_display_tasks_filtered(); | |
913 | ||
10274989 AV |
914 | p = all_data; |
915 | while (p) { | |
916 | p->display = 0; | |
917 | if (p->start_time == 1) | |
918 | p->start_time = first_time; | |
919 | ||
920 | /* no exit marker, task kept running to the end */ | |
921 | if (p->end_time == 0) | |
922 | p->end_time = last_time; | |
39a90a8e | 923 | if (p->total_time >= threshold && !power_only) |
10274989 AV |
924 | p->display = 1; |
925 | ||
926 | c = p->all; | |
927 | ||
928 | while (c) { | |
929 | c->display = 0; | |
930 | ||
931 | if (c->start_time == 1) | |
932 | c->start_time = first_time; | |
933 | ||
39a90a8e | 934 | if (c->total_time >= threshold && !power_only) { |
10274989 AV |
935 | c->display = 1; |
936 | count++; | |
937 | } | |
938 | ||
939 | if (c->end_time == 0) | |
940 | c->end_time = last_time; | |
941 | ||
942 | c = c->next; | |
943 | } | |
944 | p = p->next; | |
945 | } | |
946 | return count; | |
947 | } | |
948 | ||
949 | ||
950 | ||
951 | #define TIME_THRESH 10000000 | |
952 | ||
953 | static void write_svg_file(const char *filename) | |
954 | { | |
955 | u64 i; | |
956 | int count; | |
957 | ||
958 | numcpus++; | |
959 | ||
960 | ||
961 | count = determine_display_tasks(TIME_THRESH); | |
962 | ||
963 | /* We'd like to show at least 15 tasks; be less picky if we have fewer */ | |
964 | if (count < 15) | |
965 | count = determine_display_tasks(TIME_THRESH / 10); | |
966 | ||
5094b655 | 967 | open_svg(filename, numcpus, count, first_time, last_time); |
10274989 | 968 | |
5094b655 | 969 | svg_time_grid(); |
10274989 AV |
970 | svg_legenda(); |
971 | ||
972 | for (i = 0; i < numcpus; i++) | |
973 | svg_cpu_box(i, max_freq, turbo_frequency); | |
974 | ||
975 | draw_cpu_usage(); | |
976 | draw_process_bars(); | |
977 | draw_c_p_states(); | |
978 | draw_wakeups(); | |
979 | ||
980 | svg_close(); | |
981 | } | |
982 | ||
45694aa7 | 983 | static struct perf_tool perf_timechart = { |
9df9bbba FW |
984 | .comm = process_comm_event, |
985 | .fork = process_fork_event, | |
986 | .exit = process_exit_event, | |
987 | .sample = process_sample_event, | |
988 | .ordered_samples = true, | |
5cbd0805 | 989 | }; |
10274989 | 990 | |
5cbd0805 LZ |
991 | static int __cmd_timechart(void) |
992 | { | |
21ef97f0 | 993 | struct perf_session *session = perf_session__new(input_name, O_RDONLY, |
45694aa7 | 994 | 0, false, &perf_timechart); |
d549c769 | 995 | int ret = -EINVAL; |
10274989 | 996 | |
94c744b6 ACM |
997 | if (session == NULL) |
998 | return -ENOMEM; | |
999 | ||
d549c769 ACM |
1000 | if (!perf_session__has_traces(session, "timechart record")) |
1001 | goto out_delete; | |
1002 | ||
45694aa7 | 1003 | ret = perf_session__process_events(session, &perf_timechart); |
5cbd0805 | 1004 | if (ret) |
94c744b6 | 1005 | goto out_delete; |
10274989 | 1006 | |
10274989 AV |
1007 | end_sample_processing(); |
1008 | ||
1009 | sort_pids(); | |
1010 | ||
1011 | write_svg_file(output_name); | |
1012 | ||
6beba7ad ACM |
1013 | pr_info("Written %2.1f seconds of trace to %s.\n", |
1014 | (last_time - first_time) / 1000000000.0, output_name); | |
94c744b6 ACM |
1015 | out_delete: |
1016 | perf_session__delete(session); | |
1017 | return ret; | |
10274989 AV |
1018 | } |
1019 | ||
3c09eebd AV |
1020 | static const char * const timechart_usage[] = { |
1021 | "perf timechart [<options>] {record}", | |
10274989 AV |
1022 | NULL |
1023 | }; | |
1024 | ||
20c457b8 TR |
1025 | #ifdef SUPPORT_OLD_POWER_EVENTS |
1026 | static const char * const record_old_args[] = { | |
3c09eebd AV |
1027 | "record", |
1028 | "-a", | |
1029 | "-R", | |
3c09eebd AV |
1030 | "-f", |
1031 | "-c", "1", | |
1032 | "-e", "power:power_start", | |
1033 | "-e", "power:power_end", | |
1034 | "-e", "power:power_frequency", | |
1035 | "-e", "sched:sched_wakeup", | |
1036 | "-e", "sched:sched_switch", | |
1037 | }; | |
20c457b8 TR |
1038 | #endif |
1039 | ||
1040 | static const char * const record_new_args[] = { | |
1041 | "record", | |
1042 | "-a", | |
1043 | "-R", | |
1044 | "-f", | |
1045 | "-c", "1", | |
1046 | "-e", "power:cpu_frequency", | |
1047 | "-e", "power:cpu_idle", | |
1048 | "-e", "sched:sched_wakeup", | |
1049 | "-e", "sched:sched_switch", | |
1050 | }; | |
3c09eebd AV |
1051 | |
1052 | static int __cmd_record(int argc, const char **argv) | |
1053 | { | |
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 | ||
10274989 AV |
1092 | static const struct option options[] = { |
1093 | OPT_STRING('i', "input", &input_name, "file", | |
1094 | "input file name"), | |
1095 | OPT_STRING('o', "output", &output_name, "file", | |
1096 | "output file name"), | |
5094b655 AV |
1097 | OPT_INTEGER('w', "width", &svg_page_width, |
1098 | "page width"), | |
bbe2987b | 1099 | OPT_BOOLEAN('P', "power-only", &power_only, |
39a90a8e | 1100 | "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"), | |
10274989 AV |
1106 | OPT_END() |
1107 | }; | |
1108 | ||
1109 | ||
1d037ca1 IT |
1110 | int cmd_timechart(int argc, const char **argv, |
1111 | const char *prefix __maybe_unused) | |
10274989 | 1112 | { |
3c09eebd AV |
1113 | argc = parse_options(argc, argv, options, timechart_usage, |
1114 | PARSE_OPT_STOP_AT_NON_OPTION); | |
10274989 | 1115 | |
655000e7 ACM |
1116 | symbol__init(); |
1117 | ||
3c09eebd AV |
1118 | if (argc && !strncmp(argv[0], "rec", 3)) |
1119 | return __cmd_record(argc, argv); | |
1120 | else if (argc) | |
1121 | usage_with_options(timechart_usage, options); | |
10274989 AV |
1122 | |
1123 | setup_pager(); | |
1124 | ||
1125 | return __cmd_timechart(); | |
1126 | } |