blob: 3b75b2e21ea55e51739a7200ffeeb61aa8e613ad [file] [log] [blame]
Arjan van de Ven10274982009-09-12 07:53:05 +02001/*
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"
Arnaldo Carvalho de Meloe3f42602011-11-16 17:02:54 -020022#include "util/evsel.h"
Arjan van de Ven10274982009-09-12 07:53:05 +020023#include <linux/rbtree.h>
24#include "util/symbol.h"
Arjan van de Ven10274982009-09-12 07:53:05 +020025#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"
Li Zefan5cbd0802009-12-01 14:05:16 +080032#include "util/event.h"
Arnaldo Carvalho de Melo301a0b02009-12-13 19:50:25 -020033#include "util/session.h"
Arjan van de Ven10274982009-09-12 07:53:05 +020034#include "util/svghelper.h"
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -020035#include "util/tool.h"
Arjan van de Ven10274982009-09-12 07:53:05 +020036
Thomas Renninger20c457b2011-01-03 17:50:45 +010037#define SUPPORT_OLD_POWER_EVENTS 1
38#define PWR_EVENT_EXIT -1
39
40
Robert Richterefad1412011-12-07 10:02:54 +010041static const char *input_name;
42static const char *output_name = "output.svg";
Arjan van de Ven10274982009-09-12 07:53:05 +020043
Arjan van de Ven10274982009-09-12 07:53:05 +020044static unsigned int numcpus;
45static u64 min_freq; /* Lowest CPU frequency seen */
46static u64 max_freq; /* Highest CPU frequency seen */
47static u64 turbo_frequency;
48
49static u64 first_time, last_time;
50
Ian Munsiec0555642010-04-13 18:37:33 +100051static bool power_only;
Arjan van de Ven39a90a82009-09-24 15:40:13 +020052
Arjan van de Ven10274982009-09-12 07:53:05 +020053
Arjan van de Ven10274982009-09-12 07:53:05 +020054struct per_pid;
55struct per_pidcomm;
56
57struct cpu_sample;
58struct power_event;
59struct wake_event;
60
61struct 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
73struct 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;
Arjan van de Ven10274982009-09-12 07:53:05 +020086};
87
88
89struct 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
107struct 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
119struct cpu_sample {
120 struct cpu_sample *next;
121
122 u64 start_time;
123 u64 end_time;
124 int type;
125 int cpu;
126};
127
128static struct per_pid *all_data;
129
130#define CSTATE 1
131#define PSTATE 2
132
133struct 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
142struct wake_event {
143 struct wake_event *next;
144 int waker;
145 int wakee;
146 u64 time;
147};
148
149static struct power_event *power_events;
150static struct wake_event *wake_events;
151
Arjan van de Venbbe29872009-10-20 07:09:39 +0900152struct process_filter;
153struct process_filter {
Li Zefan5cbd0802009-12-01 14:05:16 +0800154 char *name;
155 int pid;
156 struct process_filter *next;
Arjan van de Venbbe29872009-10-20 07:09:39 +0900157};
158
159static struct process_filter *process_filter;
160
161
Arjan van de Ven10274982009-09-12 07:53:05 +0200162static 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
180static 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
207static 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
223static 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
232static void
233pid_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;
Arjan van de Ven10274982009-09-12 07:53:05 +0200269}
270
271#define MAX_CPUS 4096
272
273static u64 cpus_cstate_start_times[MAX_CPUS];
274static int cpus_cstate_state[MAX_CPUS];
275static u64 cpus_pstate_start_times[MAX_CPUS];
276static u64 cpus_pstate_state[MAX_CPUS];
277
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200278static int process_comm_event(struct perf_tool *tool __used,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200279 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200280 struct perf_sample *sample __used,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200281 struct machine *machine __used)
Arjan van de Ven10274982009-09-12 07:53:05 +0200282{
Arjan van de Ven8f06d7e2010-01-16 12:53:19 -0800283 pid_set_comm(event->comm.tid, event->comm.comm);
Arjan van de Ven10274982009-09-12 07:53:05 +0200284 return 0;
285}
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200286
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200287static int process_fork_event(struct perf_tool *tool __used,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200288 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200289 struct perf_sample *sample __used,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200290 struct machine *machine __used)
Arjan van de Ven10274982009-09-12 07:53:05 +0200291{
292 pid_fork(event->fork.pid, event->fork.ppid, event->fork.time);
293 return 0;
294}
295
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200296static int process_exit_event(struct perf_tool *tool __used,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200297 union perf_event *event,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200298 struct perf_sample *sample __used,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200299 struct machine *machine __used)
Arjan van de Ven10274982009-09-12 07:53:05 +0200300{
301 pid_exit(event->fork.pid, event->fork.time);
302 return 0;
303}
304
305struct trace_entry {
Arjan van de Ven10274982009-09-12 07:53:05 +0200306 unsigned short type;
307 unsigned char flags;
308 unsigned char preempt_count;
309 int pid;
OGAWA Hirofumi028c5152009-12-06 20:07:29 +0900310 int lock_depth;
Arjan van de Ven10274982009-09-12 07:53:05 +0200311};
312
Thomas Renninger20c457b2011-01-03 17:50:45 +0100313#ifdef SUPPORT_OLD_POWER_EVENTS
314static int use_old_power_events;
315struct power_entry_old {
Arjan van de Ven10274982009-09-12 07:53:05 +0200316 struct trace_entry te;
Thomas Renninger4c21adf2010-07-20 16:59:34 -0700317 u64 type;
318 u64 value;
319 u64 cpu_id;
Arjan van de Ven10274982009-09-12 07:53:05 +0200320};
Thomas Renninger20c457b2011-01-03 17:50:45 +0100321#endif
322
323struct power_processor_entry {
324 struct trace_entry te;
325 u32 state;
326 u32 cpu_id;
327};
Arjan van de Ven10274982009-09-12 07:53:05 +0200328
329#define TASK_COMM_LEN 16
330struct 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 */
347enum 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
357struct 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
368static 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
374static 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
392static 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
429static void
430sched_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
463static 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
Julia Lawall33e26a12010-08-05 22:27:51 +0200479 p->current->state_since = timestamp;
480 p->current->state = TYPE_RUNNING;
Arjan van de Ven10274982009-09-12 07:53:05 +0200481 }
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
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200494static int process_sample_event(struct perf_tool *tool __used,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200495 union perf_event *event __used,
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200496 struct perf_sample *sample,
Arnaldo Carvalho de Meloe3f42602011-11-16 17:02:54 -0200497 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200498 struct machine *machine __used)
Arjan van de Ven10274982009-09-12 07:53:05 +0200499{
Arjan van de Ven10274982009-09-12 07:53:05 +0200500 struct trace_entry *te;
501
Arnaldo Carvalho de Meloe3f42602011-11-16 17:02:54 -0200502 if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200503 if (!first_time || first_time > sample->time)
504 first_time = sample->time;
505 if (last_time < sample->time)
506 last_time = sample->time;
Arjan van de Ven10274982009-09-12 07:53:05 +0200507 }
Arjan van de Ven10274982009-09-12 07:53:05 +0200508
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200509 te = (void *)sample->raw_data;
Arnaldo Carvalho de Meloe3f42602011-11-16 17:02:54 -0200510 if ((evsel->attr.sample_type & PERF_SAMPLE_RAW) && sample->raw_size > 0) {
Arjan van de Ven10274982009-09-12 07:53:05 +0200511 char *event_str;
Thomas Renninger20c457b2011-01-03 17:50:45 +0100512#ifdef SUPPORT_OLD_POWER_EVENTS
513 struct power_entry_old *peo;
514 peo = (void *)te;
515#endif
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -0300516 /*
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 */
Arjan van de Ven10274982009-09-12 07:53:05 +0200526 event_str = perf_header__find_event(te->type);
527
528 if (!event_str)
529 return 0;
530
Thomas Renninger54b08f52011-02-27 22:36:46 +0100531 if (sample->cpu > numcpus)
532 numcpus = sample->cpu;
533
Thomas Renninger20c457b2011-01-03 17:50:45 +0100534 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 }
Arjan van de Ven10274982009-09-12 07:53:05 +0200546
Thomas Renninger20c457b2011-01-03 17:50:45 +0100547 else if (strcmp(event_str, "sched:sched_wakeup") == 0)
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200548 sched_wakeup(sample->cpu, sample->time, sample->pid, te);
Arjan van de Ven10274982009-09-12 07:53:05 +0200549
Thomas Renninger20c457b2011-01-03 17:50:45 +0100550 else if (strcmp(event_str, "sched:sched_switch") == 0)
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200551 sched_switch(sample->cpu, sample->time, te);
Thomas Renninger20c457b2011-01-03 17:50:45 +0100552
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
Arjan van de Ven10274982009-09-12 07:53:05 +0200568 }
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 */
576static void end_sample_processing(void)
577{
578 u64 cpu;
579 struct power_event *pwr;
580
Arjan van de Ven39a90a82009-09-24 15:40:13 +0200581 for (cpu = 0; cpu <= numcpus; cpu++) {
Arjan van de Ven10274982009-09-12 07:53:05 +0200582 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
Arjan van de Ven10274982009-09-12 07:53:05 +0200620/*
621 * Sort the pid datastructure
622 */
623static 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
669static 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
694static 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;
Arjan van de Ven4f1202c2009-09-20 18:13:28 +0200703 char *task_from = NULL, *task_to = NULL;
Arjan van de Ven10274982009-09-12 07:53:05 +0200704
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) {
Arjan van de Venbbe29872009-10-20 07:09:39 +0900712 if (p->pid == we->waker && !from) {
Arjan van de Ven10274982009-09-12 07:53:05 +0200713 from = c->Y;
Arjan van de Ven3bc2a392009-10-20 06:46:49 +0900714 task_from = strdup(c->comm);
Arjan van de Ven4f1202c2009-09-20 18:13:28 +0200715 }
Arjan van de Venbbe29872009-10-20 07:09:39 +0900716 if (p->pid == we->wakee && !to) {
Arjan van de Ven10274982009-09-12 07:53:05 +0200717 to = c->Y;
Arjan van de Ven3bc2a392009-10-20 06:46:49 +0900718 task_to = strdup(c->comm);
Arjan van de Ven4f1202c2009-09-20 18:13:28 +0200719 }
Arjan van de Ven10274982009-09-12 07:53:05 +0200720 }
721 c = c->next;
722 }
Arjan van de Ven3bc2a392009-10-20 06:46:49 +0900723 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 }
Arjan van de Ven10274982009-09-12 07:53:05 +0200735 }
736 p = p->next;
737 }
738
Arjan van de Ven3bc2a392009-10-20 06:46:49 +0900739 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
Arjan van de Ven10274982009-09-12 07:53:05 +0200748 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
Arjan van de Ven4f1202c2009-09-20 18:13:28 +0200753 svg_partial_wakeline(we->time, from, task_from, to, task_to);
Arjan van de Ven10274982009-09-12 07:53:05 +0200754 we = we->next;
Arjan van de Ven3bc2a392009-10-20 06:46:49 +0900755
756 free(task_from);
757 free(task_to);
Arjan van de Ven10274982009-09-12 07:53:05 +0200758 }
759}
760
761static 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
783static 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
Arjan van de Vena92fe7b2009-09-20 18:13:53 +0200802 svg_box(Y, c->start_time, c->end_time, "process");
Arjan van de Ven10274982009-09-12 07:53:05 +0200803 sample = c->samples;
804 while (sample) {
805 if (sample->type == TYPE_RUNNING)
Arjan van de Vena92fe7b2009-09-20 18:13:53 +0200806 svg_sample(Y, sample->cpu, sample->start_time, sample->end_time);
Arjan van de Ven10274982009-09-12 07:53:05 +0200807 if (sample->type == TYPE_BLOCKED)
808 svg_box(Y, sample->start_time, sample->end_time, "blocked");
809 if (sample->type == TYPE_WAITING)
Arjan van de Vena92fe7b2009-09-20 18:13:53 +0200810 svg_waiting(Y, sample->start_time, sample->end_time);
Arjan van de Ven10274982009-09-12 07:53:05 +0200811 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
Arjan van de Venbbe29872009-10-20 07:09:39 +0900831static 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
848static 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
865static 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
Arjan van de Ven10274982009-09-12 07:53:05 +0200905static int determine_display_tasks(u64 threshold)
906{
907 struct per_pid *p;
908 struct per_pidcomm *c;
909 int count = 0;
910
Arjan van de Venbbe29872009-10-20 07:09:39 +0900911 if (process_filter)
912 return determine_display_tasks_filtered();
913
Arjan van de Ven10274982009-09-12 07:53:05 +0200914 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;
Arjan van de Ven39a90a82009-09-24 15:40:13 +0200923 if (p->total_time >= threshold && !power_only)
Arjan van de Ven10274982009-09-12 07:53:05 +0200924 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
Arjan van de Ven39a90a82009-09-24 15:40:13 +0200934 if (c->total_time >= threshold && !power_only) {
Arjan van de Ven10274982009-09-12 07:53:05 +0200935 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
953static 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
Arjan van de Ven5094b652009-09-20 18:14:16 +0200967 open_svg(filename, numcpus, count, first_time, last_time);
Arjan van de Ven10274982009-09-12 07:53:05 +0200968
Arjan van de Ven5094b652009-09-20 18:14:16 +0200969 svg_time_grid();
Arjan van de Ven10274982009-09-12 07:53:05 +0200970 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
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200983static struct perf_tool perf_timechart = {
Frederic Weisbecker9df9bbb2010-04-24 01:18:48 +0200984 .comm = process_comm_event,
985 .fork = process_fork_event,
986 .exit = process_exit_event,
987 .sample = process_sample_event,
988 .ordered_samples = true,
Li Zefan5cbd0802009-12-01 14:05:16 +0800989};
Arjan van de Ven10274982009-09-12 07:53:05 +0200990
991static int __cmd_timechart(void)
992{
Ian Munsie21ef97f2010-12-10 14:09:16 +1100993 struct perf_session *session = perf_session__new(input_name, O_RDONLY,
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200994 0, false, &perf_timechart);
Arnaldo Carvalho de Melod549c7692009-12-27 21:37:02 -0200995 int ret = -EINVAL;
Arjan van de Ven10274982009-09-12 07:53:05 +0200996
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200997 if (session == NULL)
998 return -ENOMEM;
999
Arnaldo Carvalho de Melod549c7692009-12-27 21:37:02 -02001000 if (!perf_session__has_traces(session, "timechart record"))
1001 goto out_delete;
1002
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001003 ret = perf_session__process_events(session, &perf_timechart);
Li Zefan5cbd0802009-12-01 14:05:16 +08001004 if (ret)
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -02001005 goto out_delete;
Arjan van de Ven10274982009-09-12 07:53:05 +02001006
Arjan van de Ven10274982009-09-12 07:53:05 +02001007 end_sample_processing();
1008
1009 sort_pids();
1010
1011 write_svg_file(output_name);
1012
Arnaldo Carvalho de Melo6beba7a2009-10-21 17:34:06 -02001013 pr_info("Written %2.1f seconds of trace to %s.\n",
1014 (last_time - first_time) / 1000000000.0, output_name);
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -02001015out_delete:
1016 perf_session__delete(session);
1017 return ret;
Arjan van de Ven10274982009-09-12 07:53:05 +02001018}
1019
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001020static const char * const timechart_usage[] = {
1021 "perf timechart [<options>] {record}",
Arjan van de Ven10274982009-09-12 07:53:05 +02001022 NULL
1023};
1024
Thomas Renninger20c457b2011-01-03 17:50:45 +01001025#ifdef SUPPORT_OLD_POWER_EVENTS
1026static const char * const record_old_args[] = {
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001027 "record",
1028 "-a",
1029 "-R",
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001030 "-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};
Thomas Renninger20c457b2011-01-03 17:50:45 +01001038#endif
1039
1040static 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};
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001051
1052static int __cmd_record(int argc, const char **argv)
1053{
1054 unsigned int rec_argc, i, j;
1055 const char **rec_argv;
Thomas Renninger20c457b2011-01-03 17:50:45 +01001056 const char * const *record_args = record_new_args;
1057 unsigned int record_elems = ARRAY_SIZE(record_new_args);
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001058
Thomas Renninger20c457b2011-01-03 17:50:45 +01001059#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
1067
1068 rec_argc = record_elems + argc - 1;
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001069 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1070
Chris Samuelce47dc52010-11-13 13:35:06 +11001071 if (rec_argv == NULL)
1072 return -ENOMEM;
1073
Thomas Renninger20c457b2011-01-03 17:50:45 +01001074 for (i = 0; i < record_elems; i++)
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001075 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
Arjan van de Venbbe29872009-10-20 07:09:39 +09001083static int
1084parse_process(const struct option *opt __used, const char *arg, int __used unset)
1085{
1086 if (arg)
1087 add_process_filter(arg);
1088 return 0;
1089}
1090
Arjan van de Ven10274982009-09-12 07:53:05 +02001091static const struct option options[] = {
1092 OPT_STRING('i', "input", &input_name, "file",
1093 "input file name"),
1094 OPT_STRING('o', "output", &output_name, "file",
1095 "output file name"),
Arjan van de Ven5094b652009-09-20 18:14:16 +02001096 OPT_INTEGER('w', "width", &svg_page_width,
1097 "page width"),
Arjan van de Venbbe29872009-10-20 07:09:39 +09001098 OPT_BOOLEAN('P', "power-only", &power_only,
Arjan van de Ven39a90a82009-09-24 15:40:13 +02001099 "output power data only"),
Arjan van de Venbbe29872009-10-20 07:09:39 +09001100 OPT_CALLBACK('p', "process", NULL, "process",
1101 "process selector. Pass a pid or process name.",
1102 parse_process),
David Ahernec5761e2010-12-09 13:27:07 -07001103 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1104 "Look for files with symbols relative to this directory"),
Arjan van de Ven10274982009-09-12 07:53:05 +02001105 OPT_END()
1106};
1107
1108
1109int cmd_timechart(int argc, const char **argv, const char *prefix __used)
1110{
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001111 argc = parse_options(argc, argv, options, timechart_usage,
1112 PARSE_OPT_STOP_AT_NON_OPTION);
Arjan van de Ven10274982009-09-12 07:53:05 +02001113
Arnaldo Carvalho de Melo655000e2009-12-15 20:04:40 -02001114 symbol__init();
1115
Arjan van de Ven3c09eeb2009-09-19 13:34:42 +02001116 if (argc && !strncmp(argv[0], "rec", 3))
1117 return __cmd_record(argc, argv);
1118 else if (argc)
1119 usage_with_options(timechart_usage, options);
Arjan van de Ven10274982009-09-12 07:53:05 +02001120
1121 setup_pager();
1122
1123 return __cmd_timechart();
1124}