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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 <traceevent/event-parse.h>
16
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"
24#include "util/evlist.h"
25#include "util/evsel.h"
26#include <linux/rbtree.h>
27#include "util/symbol.h"
28#include "util/callchain.h"
29#include "util/strlist.h"
30
31#include "perf.h"
32#include "util/header.h"
33#include <subcmd/parse-options.h>
34#include "util/parse-events.h"
35#include "util/event.h"
36#include "util/session.h"
37#include "util/svghelper.h"
38#include "util/tool.h"
39#include "util/data.h"
40#include "util/debug.h"
41
42#define SUPPORT_OLD_POWER_EVENTS 1
43#define PWR_EVENT_EXIT -1
44
45struct per_pid;
46struct power_event;
47struct wake_event;
48
49struct timechart {
50 struct perf_tool tool;
51 struct per_pid *all_data;
52 struct power_event *power_events;
53 struct wake_event *wake_events;
54 int proc_num;
55 unsigned int numcpus;
56 u64 min_freq, /* Lowest CPU frequency seen */
57 max_freq, /* Highest CPU frequency seen */
58 turbo_frequency,
59 first_time, last_time;
60 bool power_only,
61 tasks_only,
62 with_backtrace,
63 topology;
64 bool force;
65 /* IO related settings */
66 bool io_only,
67 skip_eagain;
68 u64 io_events;
69 u64 min_time,
70 merge_dist;
71};
72
73struct per_pidcomm;
74struct cpu_sample;
75struct io_sample;
76
77/*
78 * Datastructure layout:
79 * We keep an list of "pid"s, matching the kernels notion of a task struct.
80 * Each "pid" entry, has a list of "comm"s.
81 * this is because we want to track different programs different, while
82 * exec will reuse the original pid (by design).
83 * Each comm has a list of samples that will be used to draw
84 * final graph.
85 */
86
87struct per_pid {
88 struct per_pid *next;
89
90 int pid;
91 int ppid;
92
93 u64 start_time;
94 u64 end_time;
95 u64 total_time;
96 u64 total_bytes;
97 int display;
98
99 struct per_pidcomm *all;
100 struct per_pidcomm *current;
101};
102
103
104struct per_pidcomm {
105 struct per_pidcomm *next;
106
107 u64 start_time;
108 u64 end_time;
109 u64 total_time;
110 u64 max_bytes;
111 u64 total_bytes;
112
113 int Y;
114 int display;
115
116 long state;
117 u64 state_since;
118
119 char *comm;
120
121 struct cpu_sample *samples;
122 struct io_sample *io_samples;
123};
124
125struct sample_wrapper {
126 struct sample_wrapper *next;
127
128 u64 timestamp;
129 unsigned char data[0];
130};
131
132#define TYPE_NONE 0
133#define TYPE_RUNNING 1
134#define TYPE_WAITING 2
135#define TYPE_BLOCKED 3
136
137struct cpu_sample {
138 struct cpu_sample *next;
139
140 u64 start_time;
141 u64 end_time;
142 int type;
143 int cpu;
144 const char *backtrace;
145};
146
147enum {
148 IOTYPE_READ,
149 IOTYPE_WRITE,
150 IOTYPE_SYNC,
151 IOTYPE_TX,
152 IOTYPE_RX,
153 IOTYPE_POLL,
154};
155
156struct io_sample {
157 struct io_sample *next;
158
159 u64 start_time;
160 u64 end_time;
161 u64 bytes;
162 int type;
163 int fd;
164 int err;
165 int merges;
166};
167
168#define CSTATE 1
169#define PSTATE 2
170
171struct power_event {
172 struct power_event *next;
173 int type;
174 int state;
175 u64 start_time;
176 u64 end_time;
177 int cpu;
178};
179
180struct wake_event {
181 struct wake_event *next;
182 int waker;
183 int wakee;
184 u64 time;
185 const char *backtrace;
186};
187
188struct process_filter {
189 char *name;
190 int pid;
191 struct process_filter *next;
192};
193
194static struct process_filter *process_filter;
195
196
197static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
198{
199 struct per_pid *cursor = tchart->all_data;
200
201 while (cursor) {
202 if (cursor->pid == pid)
203 return cursor;
204 cursor = cursor->next;
205 }
206 cursor = zalloc(sizeof(*cursor));
207 assert(cursor != NULL);
208 cursor->pid = pid;
209 cursor->next = tchart->all_data;
210 tchart->all_data = cursor;
211 return cursor;
212}
213
214static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
215{
216 struct per_pid *p;
217 struct per_pidcomm *c;
218 p = find_create_pid(tchart, pid);
219 c = p->all;
220 while (c) {
221 if (c->comm && strcmp(c->comm, comm) == 0) {
222 p->current = c;
223 return;
224 }
225 if (!c->comm) {
226 c->comm = strdup(comm);
227 p->current = c;
228 return;
229 }
230 c = c->next;
231 }
232 c = zalloc(sizeof(*c));
233 assert(c != NULL);
234 c->comm = strdup(comm);
235 p->current = c;
236 c->next = p->all;
237 p->all = c;
238}
239
240static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
241{
242 struct per_pid *p, *pp;
243 p = find_create_pid(tchart, pid);
244 pp = find_create_pid(tchart, ppid);
245 p->ppid = ppid;
246 if (pp->current && pp->current->comm && !p->current)
247 pid_set_comm(tchart, pid, pp->current->comm);
248
249 p->start_time = timestamp;
250 if (p->current && !p->current->start_time) {
251 p->current->start_time = timestamp;
252 p->current->state_since = timestamp;
253 }
254}
255
256static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
257{
258 struct per_pid *p;
259 p = find_create_pid(tchart, pid);
260 p->end_time = timestamp;
261 if (p->current)
262 p->current->end_time = timestamp;
263}
264
265static void pid_put_sample(struct timechart *tchart, int pid, int type,
266 unsigned int cpu, u64 start, u64 end,
267 const char *backtrace)
268{
269 struct per_pid *p;
270 struct per_pidcomm *c;
271 struct cpu_sample *sample;
272
273 p = find_create_pid(tchart, pid);
274 c = p->current;
275 if (!c) {
276 c = zalloc(sizeof(*c));
277 assert(c != NULL);
278 p->current = c;
279 c->next = p->all;
280 p->all = c;
281 }
282
283 sample = zalloc(sizeof(*sample));
284 assert(sample != NULL);
285 sample->start_time = start;
286 sample->end_time = end;
287 sample->type = type;
288 sample->next = c->samples;
289 sample->cpu = cpu;
290 sample->backtrace = backtrace;
291 c->samples = sample;
292
293 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
294 c->total_time += (end-start);
295 p->total_time += (end-start);
296 }
297
298 if (c->start_time == 0 || c->start_time > start)
299 c->start_time = start;
300 if (p->start_time == 0 || p->start_time > start)
301 p->start_time = start;
302}
303
304#define MAX_CPUS 4096
305
306static u64 cpus_cstate_start_times[MAX_CPUS];
307static int cpus_cstate_state[MAX_CPUS];
308static u64 cpus_pstate_start_times[MAX_CPUS];
309static u64 cpus_pstate_state[MAX_CPUS];
310
311static int process_comm_event(struct perf_tool *tool,
312 union perf_event *event,
313 struct perf_sample *sample __maybe_unused,
314 struct machine *machine __maybe_unused)
315{
316 struct timechart *tchart = container_of(tool, struct timechart, tool);
317 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
318 return 0;
319}
320
321static int process_fork_event(struct perf_tool *tool,
322 union perf_event *event,
323 struct perf_sample *sample __maybe_unused,
324 struct machine *machine __maybe_unused)
325{
326 struct timechart *tchart = container_of(tool, struct timechart, tool);
327 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
328 return 0;
329}
330
331static int process_exit_event(struct perf_tool *tool,
332 union perf_event *event,
333 struct perf_sample *sample __maybe_unused,
334 struct machine *machine __maybe_unused)
335{
336 struct timechart *tchart = container_of(tool, struct timechart, tool);
337 pid_exit(tchart, event->fork.pid, event->fork.time);
338 return 0;
339}
340
341#ifdef SUPPORT_OLD_POWER_EVENTS
342static int use_old_power_events;
343#endif
344
345static void c_state_start(int cpu, u64 timestamp, int state)
346{
347 cpus_cstate_start_times[cpu] = timestamp;
348 cpus_cstate_state[cpu] = state;
349}
350
351static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
352{
353 struct power_event *pwr = zalloc(sizeof(*pwr));
354
355 if (!pwr)
356 return;
357
358 pwr->state = cpus_cstate_state[cpu];
359 pwr->start_time = cpus_cstate_start_times[cpu];
360 pwr->end_time = timestamp;
361 pwr->cpu = cpu;
362 pwr->type = CSTATE;
363 pwr->next = tchart->power_events;
364
365 tchart->power_events = pwr;
366}
367
368static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
369{
370 struct power_event *pwr;
371
372 if (new_freq > 8000000) /* detect invalid data */
373 return;
374
375 pwr = zalloc(sizeof(*pwr));
376 if (!pwr)
377 return;
378
379 pwr->state = cpus_pstate_state[cpu];
380 pwr->start_time = cpus_pstate_start_times[cpu];
381 pwr->end_time = timestamp;
382 pwr->cpu = cpu;
383 pwr->type = PSTATE;
384 pwr->next = tchart->power_events;
385
386 if (!pwr->start_time)
387 pwr->start_time = tchart->first_time;
388
389 tchart->power_events = pwr;
390
391 cpus_pstate_state[cpu] = new_freq;
392 cpus_pstate_start_times[cpu] = timestamp;
393
394 if ((u64)new_freq > tchart->max_freq)
395 tchart->max_freq = new_freq;
396
397 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
398 tchart->min_freq = new_freq;
399
400 if (new_freq == tchart->max_freq - 1000)
401 tchart->turbo_frequency = tchart->max_freq;
402}
403
404static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
405 int waker, int wakee, u8 flags, const char *backtrace)
406{
407 struct per_pid *p;
408 struct wake_event *we = zalloc(sizeof(*we));
409
410 if (!we)
411 return;
412
413 we->time = timestamp;
414 we->waker = waker;
415 we->backtrace = backtrace;
416
417 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
418 we->waker = -1;
419
420 we->wakee = wakee;
421 we->next = tchart->wake_events;
422 tchart->wake_events = we;
423 p = find_create_pid(tchart, we->wakee);
424
425 if (p && p->current && p->current->state == TYPE_NONE) {
426 p->current->state_since = timestamp;
427 p->current->state = TYPE_WAITING;
428 }
429 if (p && p->current && p->current->state == TYPE_BLOCKED) {
430 pid_put_sample(tchart, p->pid, p->current->state, cpu,
431 p->current->state_since, timestamp, NULL);
432 p->current->state_since = timestamp;
433 p->current->state = TYPE_WAITING;
434 }
435}
436
437static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
438 int prev_pid, int next_pid, u64 prev_state,
439 const char *backtrace)
440{
441 struct per_pid *p = NULL, *prev_p;
442
443 prev_p = find_create_pid(tchart, prev_pid);
444
445 p = find_create_pid(tchart, next_pid);
446
447 if (prev_p->current && prev_p->current->state != TYPE_NONE)
448 pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
449 prev_p->current->state_since, timestamp,
450 backtrace);
451 if (p && p->current) {
452 if (p->current->state != TYPE_NONE)
453 pid_put_sample(tchart, next_pid, p->current->state, cpu,
454 p->current->state_since, timestamp,
455 backtrace);
456
457 p->current->state_since = timestamp;
458 p->current->state = TYPE_RUNNING;
459 }
460
461 if (prev_p->current) {
462 prev_p->current->state = TYPE_NONE;
463 prev_p->current->state_since = timestamp;
464 if (prev_state & 2)
465 prev_p->current->state = TYPE_BLOCKED;
466 if (prev_state == 0)
467 prev_p->current->state = TYPE_WAITING;
468 }
469}
470
471static const char *cat_backtrace(union perf_event *event,
472 struct perf_sample *sample,
473 struct machine *machine)
474{
475 struct addr_location al;
476 unsigned int i;
477 char *p = NULL;
478 size_t p_len;
479 u8 cpumode = PERF_RECORD_MISC_USER;
480 struct addr_location tal;
481 struct ip_callchain *chain = sample->callchain;
482 FILE *f = open_memstream(&p, &p_len);
483
484 if (!f) {
485 perror("open_memstream error");
486 return NULL;
487 }
488
489 if (!chain)
490 goto exit;
491
492 if (machine__resolve(machine, &al, sample) < 0) {
493 fprintf(stderr, "problem processing %d event, skipping it.\n",
494 event->header.type);
495 goto exit;
496 }
497
498 for (i = 0; i < chain->nr; i++) {
499 u64 ip;
500
501 if (callchain_param.order == ORDER_CALLEE)
502 ip = chain->ips[i];
503 else
504 ip = chain->ips[chain->nr - i - 1];
505
506 if (ip >= PERF_CONTEXT_MAX) {
507 switch (ip) {
508 case PERF_CONTEXT_HV:
509 cpumode = PERF_RECORD_MISC_HYPERVISOR;
510 break;
511 case PERF_CONTEXT_KERNEL:
512 cpumode = PERF_RECORD_MISC_KERNEL;
513 break;
514 case PERF_CONTEXT_USER:
515 cpumode = PERF_RECORD_MISC_USER;
516 break;
517 default:
518 pr_debug("invalid callchain context: "
519 "%"PRId64"\n", (s64) ip);
520
521 /*
522 * It seems the callchain is corrupted.
523 * Discard all.
524 */
525 zfree(&p);
526 goto exit_put;
527 }
528 continue;
529 }
530
531 tal.filtered = 0;
532 thread__find_addr_location(al.thread, cpumode,
533 MAP__FUNCTION, ip, &tal);
534
535 if (tal.sym)
536 fprintf(f, "..... %016" PRIx64 " %s\n", ip,
537 tal.sym->name);
538 else
539 fprintf(f, "..... %016" PRIx64 "\n", ip);
540 }
541exit_put:
542 addr_location__put(&al);
543exit:
544 fclose(f);
545
546 return p;
547}
548
549typedef int (*tracepoint_handler)(struct timechart *tchart,
550 struct perf_evsel *evsel,
551 struct perf_sample *sample,
552 const char *backtrace);
553
554static int process_sample_event(struct perf_tool *tool,
555 union perf_event *event,
556 struct perf_sample *sample,
557 struct perf_evsel *evsel,
558 struct machine *machine)
559{
560 struct timechart *tchart = container_of(tool, struct timechart, tool);
561
562 if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
563 if (!tchart->first_time || tchart->first_time > sample->time)
564 tchart->first_time = sample->time;
565 if (tchart->last_time < sample->time)
566 tchart->last_time = sample->time;
567 }
568
569 if (evsel->handler != NULL) {
570 tracepoint_handler f = evsel->handler;
571 return f(tchart, evsel, sample,
572 cat_backtrace(event, sample, machine));
573 }
574
575 return 0;
576}
577
578static int
579process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
580 struct perf_evsel *evsel,
581 struct perf_sample *sample,
582 const char *backtrace __maybe_unused)
583{
584 u32 state = perf_evsel__intval(evsel, sample, "state");
585 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
586
587 if (state == (u32)PWR_EVENT_EXIT)
588 c_state_end(tchart, cpu_id, sample->time);
589 else
590 c_state_start(cpu_id, sample->time, state);
591 return 0;
592}
593
594static int
595process_sample_cpu_frequency(struct timechart *tchart,
596 struct perf_evsel *evsel,
597 struct perf_sample *sample,
598 const char *backtrace __maybe_unused)
599{
600 u32 state = perf_evsel__intval(evsel, sample, "state");
601 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
602
603 p_state_change(tchart, cpu_id, sample->time, state);
604 return 0;
605}
606
607static int
608process_sample_sched_wakeup(struct timechart *tchart,
609 struct perf_evsel *evsel,
610 struct perf_sample *sample,
611 const char *backtrace)
612{
613 u8 flags = perf_evsel__intval(evsel, sample, "common_flags");
614 int waker = perf_evsel__intval(evsel, sample, "common_pid");
615 int wakee = perf_evsel__intval(evsel, sample, "pid");
616
617 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
618 return 0;
619}
620
621static int
622process_sample_sched_switch(struct timechart *tchart,
623 struct perf_evsel *evsel,
624 struct perf_sample *sample,
625 const char *backtrace)
626{
627 int prev_pid = perf_evsel__intval(evsel, sample, "prev_pid");
628 int next_pid = perf_evsel__intval(evsel, sample, "next_pid");
629 u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state");
630
631 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
632 prev_state, backtrace);
633 return 0;
634}
635
636#ifdef SUPPORT_OLD_POWER_EVENTS
637static int
638process_sample_power_start(struct timechart *tchart __maybe_unused,
639 struct perf_evsel *evsel,
640 struct perf_sample *sample,
641 const char *backtrace __maybe_unused)
642{
643 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
644 u64 value = perf_evsel__intval(evsel, sample, "value");
645
646 c_state_start(cpu_id, sample->time, value);
647 return 0;
648}
649
650static int
651process_sample_power_end(struct timechart *tchart,
652 struct perf_evsel *evsel __maybe_unused,
653 struct perf_sample *sample,
654 const char *backtrace __maybe_unused)
655{
656 c_state_end(tchart, sample->cpu, sample->time);
657 return 0;
658}
659
660static int
661process_sample_power_frequency(struct timechart *tchart,
662 struct perf_evsel *evsel,
663 struct perf_sample *sample,
664 const char *backtrace __maybe_unused)
665{
666 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
667 u64 value = perf_evsel__intval(evsel, sample, "value");
668
669 p_state_change(tchart, cpu_id, sample->time, value);
670 return 0;
671}
672#endif /* SUPPORT_OLD_POWER_EVENTS */
673
674/*
675 * After the last sample we need to wrap up the current C/P state
676 * and close out each CPU for these.
677 */
678static void end_sample_processing(struct timechart *tchart)
679{
680 u64 cpu;
681 struct power_event *pwr;
682
683 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
684 /* C state */
685#if 0
686 pwr = zalloc(sizeof(*pwr));
687 if (!pwr)
688 return;
689
690 pwr->state = cpus_cstate_state[cpu];
691 pwr->start_time = cpus_cstate_start_times[cpu];
692 pwr->end_time = tchart->last_time;
693 pwr->cpu = cpu;
694 pwr->type = CSTATE;
695 pwr->next = tchart->power_events;
696
697 tchart->power_events = pwr;
698#endif
699 /* P state */
700
701 pwr = zalloc(sizeof(*pwr));
702 if (!pwr)
703 return;
704
705 pwr->state = cpus_pstate_state[cpu];
706 pwr->start_time = cpus_pstate_start_times[cpu];
707 pwr->end_time = tchart->last_time;
708 pwr->cpu = cpu;
709 pwr->type = PSTATE;
710 pwr->next = tchart->power_events;
711
712 if (!pwr->start_time)
713 pwr->start_time = tchart->first_time;
714 if (!pwr->state)
715 pwr->state = tchart->min_freq;
716 tchart->power_events = pwr;
717 }
718}
719
720static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
721 u64 start, int fd)
722{
723 struct per_pid *p = find_create_pid(tchart, pid);
724 struct per_pidcomm *c = p->current;
725 struct io_sample *sample;
726 struct io_sample *prev;
727
728 if (!c) {
729 c = zalloc(sizeof(*c));
730 if (!c)
731 return -ENOMEM;
732 p->current = c;
733 c->next = p->all;
734 p->all = c;
735 }
736
737 prev = c->io_samples;
738
739 if (prev && prev->start_time && !prev->end_time) {
740 pr_warning("Skip invalid start event: "
741 "previous event already started!\n");
742
743 /* remove previous event that has been started,
744 * we are not sure we will ever get an end for it */
745 c->io_samples = prev->next;
746 free(prev);
747 return 0;
748 }
749
750 sample = zalloc(sizeof(*sample));
751 if (!sample)
752 return -ENOMEM;
753 sample->start_time = start;
754 sample->type = type;
755 sample->fd = fd;
756 sample->next = c->io_samples;
757 c->io_samples = sample;
758
759 if (c->start_time == 0 || c->start_time > start)
760 c->start_time = start;
761
762 return 0;
763}
764
765static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
766 u64 end, long ret)
767{
768 struct per_pid *p = find_create_pid(tchart, pid);
769 struct per_pidcomm *c = p->current;
770 struct io_sample *sample, *prev;
771
772 if (!c) {
773 pr_warning("Invalid pidcomm!\n");
774 return -1;
775 }
776
777 sample = c->io_samples;
778
779 if (!sample) /* skip partially captured events */
780 return 0;
781
782 if (sample->end_time) {
783 pr_warning("Skip invalid end event: "
784 "previous event already ended!\n");
785 return 0;
786 }
787
788 if (sample->type != type) {
789 pr_warning("Skip invalid end event: invalid event type!\n");
790 return 0;
791 }
792
793 sample->end_time = end;
794 prev = sample->next;
795
796 /* we want to be able to see small and fast transfers, so make them
797 * at least min_time long, but don't overlap them */
798 if (sample->end_time - sample->start_time < tchart->min_time)
799 sample->end_time = sample->start_time + tchart->min_time;
800 if (prev && sample->start_time < prev->end_time) {
801 if (prev->err) /* try to make errors more visible */
802 sample->start_time = prev->end_time;
803 else
804 prev->end_time = sample->start_time;
805 }
806
807 if (ret < 0) {
808 sample->err = ret;
809 } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
810 type == IOTYPE_TX || type == IOTYPE_RX) {
811
812 if ((u64)ret > c->max_bytes)
813 c->max_bytes = ret;
814
815 c->total_bytes += ret;
816 p->total_bytes += ret;
817 sample->bytes = ret;
818 }
819
820 /* merge two requests to make svg smaller and render-friendly */
821 if (prev &&
822 prev->type == sample->type &&
823 prev->err == sample->err &&
824 prev->fd == sample->fd &&
825 prev->end_time + tchart->merge_dist >= sample->start_time) {
826
827 sample->bytes += prev->bytes;
828 sample->merges += prev->merges + 1;
829
830 sample->start_time = prev->start_time;
831 sample->next = prev->next;
832 free(prev);
833
834 if (!sample->err && sample->bytes > c->max_bytes)
835 c->max_bytes = sample->bytes;
836 }
837
838 tchart->io_events++;
839
840 return 0;
841}
842
843static int
844process_enter_read(struct timechart *tchart,
845 struct perf_evsel *evsel,
846 struct perf_sample *sample)
847{
848 long fd = perf_evsel__intval(evsel, sample, "fd");
849 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
850 sample->time, fd);
851}
852
853static int
854process_exit_read(struct timechart *tchart,
855 struct perf_evsel *evsel,
856 struct perf_sample *sample)
857{
858 long ret = perf_evsel__intval(evsel, sample, "ret");
859 return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
860 sample->time, ret);
861}
862
863static int
864process_enter_write(struct timechart *tchart,
865 struct perf_evsel *evsel,
866 struct perf_sample *sample)
867{
868 long fd = perf_evsel__intval(evsel, sample, "fd");
869 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
870 sample->time, fd);
871}
872
873static int
874process_exit_write(struct timechart *tchart,
875 struct perf_evsel *evsel,
876 struct perf_sample *sample)
877{
878 long ret = perf_evsel__intval(evsel, sample, "ret");
879 return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
880 sample->time, ret);
881}
882
883static int
884process_enter_sync(struct timechart *tchart,
885 struct perf_evsel *evsel,
886 struct perf_sample *sample)
887{
888 long fd = perf_evsel__intval(evsel, sample, "fd");
889 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
890 sample->time, fd);
891}
892
893static int
894process_exit_sync(struct timechart *tchart,
895 struct perf_evsel *evsel,
896 struct perf_sample *sample)
897{
898 long ret = perf_evsel__intval(evsel, sample, "ret");
899 return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
900 sample->time, ret);
901}
902
903static int
904process_enter_tx(struct timechart *tchart,
905 struct perf_evsel *evsel,
906 struct perf_sample *sample)
907{
908 long fd = perf_evsel__intval(evsel, sample, "fd");
909 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
910 sample->time, fd);
911}
912
913static int
914process_exit_tx(struct timechart *tchart,
915 struct perf_evsel *evsel,
916 struct perf_sample *sample)
917{
918 long ret = perf_evsel__intval(evsel, sample, "ret");
919 return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
920 sample->time, ret);
921}
922
923static int
924process_enter_rx(struct timechart *tchart,
925 struct perf_evsel *evsel,
926 struct perf_sample *sample)
927{
928 long fd = perf_evsel__intval(evsel, sample, "fd");
929 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
930 sample->time, fd);
931}
932
933static int
934process_exit_rx(struct timechart *tchart,
935 struct perf_evsel *evsel,
936 struct perf_sample *sample)
937{
938 long ret = perf_evsel__intval(evsel, sample, "ret");
939 return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
940 sample->time, ret);
941}
942
943static int
944process_enter_poll(struct timechart *tchart,
945 struct perf_evsel *evsel,
946 struct perf_sample *sample)
947{
948 long fd = perf_evsel__intval(evsel, sample, "fd");
949 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
950 sample->time, fd);
951}
952
953static int
954process_exit_poll(struct timechart *tchart,
955 struct perf_evsel *evsel,
956 struct perf_sample *sample)
957{
958 long ret = perf_evsel__intval(evsel, sample, "ret");
959 return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
960 sample->time, ret);
961}
962
963/*
964 * Sort the pid datastructure
965 */
966static void sort_pids(struct timechart *tchart)
967{
968 struct per_pid *new_list, *p, *cursor, *prev;
969 /* sort by ppid first, then by pid, lowest to highest */
970
971 new_list = NULL;
972
973 while (tchart->all_data) {
974 p = tchart->all_data;
975 tchart->all_data = p->next;
976 p->next = NULL;
977
978 if (new_list == NULL) {
979 new_list = p;
980 p->next = NULL;
981 continue;
982 }
983 prev = NULL;
984 cursor = new_list;
985 while (cursor) {
986 if (cursor->ppid > p->ppid ||
987 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
988 /* must insert before */
989 if (prev) {
990 p->next = prev->next;
991 prev->next = p;
992 cursor = NULL;
993 continue;
994 } else {
995 p->next = new_list;
996 new_list = p;
997 cursor = NULL;
998 continue;
999 }
1000 }
1001
1002 prev = cursor;
1003 cursor = cursor->next;
1004 if (!cursor)
1005 prev->next = p;
1006 }
1007 }
1008 tchart->all_data = new_list;
1009}
1010
1011
1012static void draw_c_p_states(struct timechart *tchart)
1013{
1014 struct power_event *pwr;
1015 pwr = tchart->power_events;
1016
1017 /*
1018 * two pass drawing so that the P state bars are on top of the C state blocks
1019 */
1020 while (pwr) {
1021 if (pwr->type == CSTATE)
1022 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1023 pwr = pwr->next;
1024 }
1025
1026 pwr = tchart->power_events;
1027 while (pwr) {
1028 if (pwr->type == PSTATE) {
1029 if (!pwr->state)
1030 pwr->state = tchart->min_freq;
1031 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1032 }
1033 pwr = pwr->next;
1034 }
1035}
1036
1037static void draw_wakeups(struct timechart *tchart)
1038{
1039 struct wake_event *we;
1040 struct per_pid *p;
1041 struct per_pidcomm *c;
1042
1043 we = tchart->wake_events;
1044 while (we) {
1045 int from = 0, to = 0;
1046 char *task_from = NULL, *task_to = NULL;
1047
1048 /* locate the column of the waker and wakee */
1049 p = tchart->all_data;
1050 while (p) {
1051 if (p->pid == we->waker || p->pid == we->wakee) {
1052 c = p->all;
1053 while (c) {
1054 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
1055 if (p->pid == we->waker && !from) {
1056 from = c->Y;
1057 task_from = strdup(c->comm);
1058 }
1059 if (p->pid == we->wakee && !to) {
1060 to = c->Y;
1061 task_to = strdup(c->comm);
1062 }
1063 }
1064 c = c->next;
1065 }
1066 c = p->all;
1067 while (c) {
1068 if (p->pid == we->waker && !from) {
1069 from = c->Y;
1070 task_from = strdup(c->comm);
1071 }
1072 if (p->pid == we->wakee && !to) {
1073 to = c->Y;
1074 task_to = strdup(c->comm);
1075 }
1076 c = c->next;
1077 }
1078 }
1079 p = p->next;
1080 }
1081
1082 if (!task_from) {
1083 task_from = malloc(40);
1084 sprintf(task_from, "[%i]", we->waker);
1085 }
1086 if (!task_to) {
1087 task_to = malloc(40);
1088 sprintf(task_to, "[%i]", we->wakee);
1089 }
1090
1091 if (we->waker == -1)
1092 svg_interrupt(we->time, to, we->backtrace);
1093 else if (from && to && abs(from - to) == 1)
1094 svg_wakeline(we->time, from, to, we->backtrace);
1095 else
1096 svg_partial_wakeline(we->time, from, task_from, to,
1097 task_to, we->backtrace);
1098 we = we->next;
1099
1100 free(task_from);
1101 free(task_to);
1102 }
1103}
1104
1105static void draw_cpu_usage(struct timechart *tchart)
1106{
1107 struct per_pid *p;
1108 struct per_pidcomm *c;
1109 struct cpu_sample *sample;
1110 p = tchart->all_data;
1111 while (p) {
1112 c = p->all;
1113 while (c) {
1114 sample = c->samples;
1115 while (sample) {
1116 if (sample->type == TYPE_RUNNING) {
1117 svg_process(sample->cpu,
1118 sample->start_time,
1119 sample->end_time,
1120 p->pid,
1121 c->comm,
1122 sample->backtrace);
1123 }
1124
1125 sample = sample->next;
1126 }
1127 c = c->next;
1128 }
1129 p = p->next;
1130 }
1131}
1132
1133static void draw_io_bars(struct timechart *tchart)
1134{
1135 const char *suf;
1136 double bytes;
1137 char comm[256];
1138 struct per_pid *p;
1139 struct per_pidcomm *c;
1140 struct io_sample *sample;
1141 int Y = 1;
1142
1143 p = tchart->all_data;
1144 while (p) {
1145 c = p->all;
1146 while (c) {
1147 if (!c->display) {
1148 c->Y = 0;
1149 c = c->next;
1150 continue;
1151 }
1152
1153 svg_box(Y, c->start_time, c->end_time, "process3");
1154 sample = c->io_samples;
1155 for (sample = c->io_samples; sample; sample = sample->next) {
1156 double h = (double)sample->bytes / c->max_bytes;
1157
1158 if (tchart->skip_eagain &&
1159 sample->err == -EAGAIN)
1160 continue;
1161
1162 if (sample->err)
1163 h = 1;
1164
1165 if (sample->type == IOTYPE_SYNC)
1166 svg_fbox(Y,
1167 sample->start_time,
1168 sample->end_time,
1169 1,
1170 sample->err ? "error" : "sync",
1171 sample->fd,
1172 sample->err,
1173 sample->merges);
1174 else if (sample->type == IOTYPE_POLL)
1175 svg_fbox(Y,
1176 sample->start_time,
1177 sample->end_time,
1178 1,
1179 sample->err ? "error" : "poll",
1180 sample->fd,
1181 sample->err,
1182 sample->merges);
1183 else if (sample->type == IOTYPE_READ)
1184 svg_ubox(Y,
1185 sample->start_time,
1186 sample->end_time,
1187 h,
1188 sample->err ? "error" : "disk",
1189 sample->fd,
1190 sample->err,
1191 sample->merges);
1192 else if (sample->type == IOTYPE_WRITE)
1193 svg_lbox(Y,
1194 sample->start_time,
1195 sample->end_time,
1196 h,
1197 sample->err ? "error" : "disk",
1198 sample->fd,
1199 sample->err,
1200 sample->merges);
1201 else if (sample->type == IOTYPE_RX)
1202 svg_ubox(Y,
1203 sample->start_time,
1204 sample->end_time,
1205 h,
1206 sample->err ? "error" : "net",
1207 sample->fd,
1208 sample->err,
1209 sample->merges);
1210 else if (sample->type == IOTYPE_TX)
1211 svg_lbox(Y,
1212 sample->start_time,
1213 sample->end_time,
1214 h,
1215 sample->err ? "error" : "net",
1216 sample->fd,
1217 sample->err,
1218 sample->merges);
1219 }
1220
1221 suf = "";
1222 bytes = c->total_bytes;
1223 if (bytes > 1024) {
1224 bytes = bytes / 1024;
1225 suf = "K";
1226 }
1227 if (bytes > 1024) {
1228 bytes = bytes / 1024;
1229 suf = "M";
1230 }
1231 if (bytes > 1024) {
1232 bytes = bytes / 1024;
1233 suf = "G";
1234 }
1235
1236
1237 sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
1238 svg_text(Y, c->start_time, comm);
1239
1240 c->Y = Y;
1241 Y++;
1242 c = c->next;
1243 }
1244 p = p->next;
1245 }
1246}
1247
1248static void draw_process_bars(struct timechart *tchart)
1249{
1250 struct per_pid *p;
1251 struct per_pidcomm *c;
1252 struct cpu_sample *sample;
1253 int Y = 0;
1254
1255 Y = 2 * tchart->numcpus + 2;
1256
1257 p = tchart->all_data;
1258 while (p) {
1259 c = p->all;
1260 while (c) {
1261 if (!c->display) {
1262 c->Y = 0;
1263 c = c->next;
1264 continue;
1265 }
1266
1267 svg_box(Y, c->start_time, c->end_time, "process");
1268 sample = c->samples;
1269 while (sample) {
1270 if (sample->type == TYPE_RUNNING)
1271 svg_running(Y, sample->cpu,
1272 sample->start_time,
1273 sample->end_time,
1274 sample->backtrace);
1275 if (sample->type == TYPE_BLOCKED)
1276 svg_blocked(Y, sample->cpu,
1277 sample->start_time,
1278 sample->end_time,
1279 sample->backtrace);
1280 if (sample->type == TYPE_WAITING)
1281 svg_waiting(Y, sample->cpu,
1282 sample->start_time,
1283 sample->end_time,
1284 sample->backtrace);
1285 sample = sample->next;
1286 }
1287
1288 if (c->comm) {
1289 char comm[256];
1290 if (c->total_time > 5000000000) /* 5 seconds */
1291 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0);
1292 else
1293 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0);
1294
1295 svg_text(Y, c->start_time, comm);
1296 }
1297 c->Y = Y;
1298 Y++;
1299 c = c->next;
1300 }
1301 p = p->next;
1302 }
1303}
1304
1305static void add_process_filter(const char *string)
1306{
1307 int pid = strtoull(string, NULL, 10);
1308 struct process_filter *filt = malloc(sizeof(*filt));
1309
1310 if (!filt)
1311 return;
1312
1313 filt->name = strdup(string);
1314 filt->pid = pid;
1315 filt->next = process_filter;
1316
1317 process_filter = filt;
1318}
1319
1320static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
1321{
1322 struct process_filter *filt;
1323 if (!process_filter)
1324 return 1;
1325
1326 filt = process_filter;
1327 while (filt) {
1328 if (filt->pid && p->pid == filt->pid)
1329 return 1;
1330 if (strcmp(filt->name, c->comm) == 0)
1331 return 1;
1332 filt = filt->next;
1333 }
1334 return 0;
1335}
1336
1337static int determine_display_tasks_filtered(struct timechart *tchart)
1338{
1339 struct per_pid *p;
1340 struct per_pidcomm *c;
1341 int count = 0;
1342
1343 p = tchart->all_data;
1344 while (p) {
1345 p->display = 0;
1346 if (p->start_time == 1)
1347 p->start_time = tchart->first_time;
1348
1349 /* no exit marker, task kept running to the end */
1350 if (p->end_time == 0)
1351 p->end_time = tchart->last_time;
1352
1353 c = p->all;
1354
1355 while (c) {
1356 c->display = 0;
1357
1358 if (c->start_time == 1)
1359 c->start_time = tchart->first_time;
1360
1361 if (passes_filter(p, c)) {
1362 c->display = 1;
1363 p->display = 1;
1364 count++;
1365 }
1366
1367 if (c->end_time == 0)
1368 c->end_time = tchart->last_time;
1369
1370 c = c->next;
1371 }
1372 p = p->next;
1373 }
1374 return count;
1375}
1376
1377static int determine_display_tasks(struct timechart *tchart, u64 threshold)
1378{
1379 struct per_pid *p;
1380 struct per_pidcomm *c;
1381 int count = 0;
1382
1383 p = tchart->all_data;
1384 while (p) {
1385 p->display = 0;
1386 if (p->start_time == 1)
1387 p->start_time = tchart->first_time;
1388
1389 /* no exit marker, task kept running to the end */
1390 if (p->end_time == 0)
1391 p->end_time = tchart->last_time;
1392 if (p->total_time >= threshold)
1393 p->display = 1;
1394
1395 c = p->all;
1396
1397 while (c) {
1398 c->display = 0;
1399
1400 if (c->start_time == 1)
1401 c->start_time = tchart->first_time;
1402
1403 if (c->total_time >= threshold) {
1404 c->display = 1;
1405 count++;
1406 }
1407
1408 if (c->end_time == 0)
1409 c->end_time = tchart->last_time;
1410
1411 c = c->next;
1412 }
1413 p = p->next;
1414 }
1415 return count;
1416}
1417
1418static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
1419{
1420 struct per_pid *p;
1421 struct per_pidcomm *c;
1422 int count = 0;
1423
1424 p = timechart->all_data;
1425 while (p) {
1426 /* no exit marker, task kept running to the end */
1427 if (p->end_time == 0)
1428 p->end_time = timechart->last_time;
1429
1430 c = p->all;
1431
1432 while (c) {
1433 c->display = 0;
1434
1435 if (c->total_bytes >= threshold) {
1436 c->display = 1;
1437 count++;
1438 }
1439
1440 if (c->end_time == 0)
1441 c->end_time = timechart->last_time;
1442
1443 c = c->next;
1444 }
1445 p = p->next;
1446 }
1447 return count;
1448}
1449
1450#define BYTES_THRESH (1 * 1024 * 1024)
1451#define TIME_THRESH 10000000
1452
1453static void write_svg_file(struct timechart *tchart, const char *filename)
1454{
1455 u64 i;
1456 int count;
1457 int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
1458
1459 if (tchart->power_only)
1460 tchart->proc_num = 0;
1461
1462 /* We'd like to show at least proc_num tasks;
1463 * be less picky if we have fewer */
1464 do {
1465 if (process_filter)
1466 count = determine_display_tasks_filtered(tchart);
1467 else if (tchart->io_events)
1468 count = determine_display_io_tasks(tchart, thresh);
1469 else
1470 count = determine_display_tasks(tchart, thresh);
1471 thresh /= 10;
1472 } while (!process_filter && thresh && count < tchart->proc_num);
1473
1474 if (!tchart->proc_num)
1475 count = 0;
1476
1477 if (tchart->io_events) {
1478 open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
1479
1480 svg_time_grid(0.5);
1481 svg_io_legenda();
1482
1483 draw_io_bars(tchart);
1484 } else {
1485 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1486
1487 svg_time_grid(0);
1488
1489 svg_legenda();
1490
1491 for (i = 0; i < tchart->numcpus; i++)
1492 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
1493
1494 draw_cpu_usage(tchart);
1495 if (tchart->proc_num)
1496 draw_process_bars(tchart);
1497 if (!tchart->tasks_only)
1498 draw_c_p_states(tchart);
1499 if (tchart->proc_num)
1500 draw_wakeups(tchart);
1501 }
1502
1503 svg_close();
1504}
1505
1506static int process_header(struct perf_file_section *section __maybe_unused,
1507 struct perf_header *ph,
1508 int feat,
1509 int fd __maybe_unused,
1510 void *data)
1511{
1512 struct timechart *tchart = data;
1513
1514 switch (feat) {
1515 case HEADER_NRCPUS:
1516 tchart->numcpus = ph->env.nr_cpus_avail;
1517 break;
1518
1519 case HEADER_CPU_TOPOLOGY:
1520 if (!tchart->topology)
1521 break;
1522
1523 if (svg_build_topology_map(ph->env.sibling_cores,
1524 ph->env.nr_sibling_cores,
1525 ph->env.sibling_threads,
1526 ph->env.nr_sibling_threads))
1527 fprintf(stderr, "problem building topology\n");
1528 break;
1529
1530 default:
1531 break;
1532 }
1533
1534 return 0;
1535}
1536
1537static int __cmd_timechart(struct timechart *tchart, const char *output_name)
1538{
1539 const struct perf_evsel_str_handler power_tracepoints[] = {
1540 { "power:cpu_idle", process_sample_cpu_idle },
1541 { "power:cpu_frequency", process_sample_cpu_frequency },
1542 { "sched:sched_wakeup", process_sample_sched_wakeup },
1543 { "sched:sched_switch", process_sample_sched_switch },
1544#ifdef SUPPORT_OLD_POWER_EVENTS
1545 { "power:power_start", process_sample_power_start },
1546 { "power:power_end", process_sample_power_end },
1547 { "power:power_frequency", process_sample_power_frequency },
1548#endif
1549
1550 { "syscalls:sys_enter_read", process_enter_read },
1551 { "syscalls:sys_enter_pread64", process_enter_read },
1552 { "syscalls:sys_enter_readv", process_enter_read },
1553 { "syscalls:sys_enter_preadv", process_enter_read },
1554 { "syscalls:sys_enter_write", process_enter_write },
1555 { "syscalls:sys_enter_pwrite64", process_enter_write },
1556 { "syscalls:sys_enter_writev", process_enter_write },
1557 { "syscalls:sys_enter_pwritev", process_enter_write },
1558 { "syscalls:sys_enter_sync", process_enter_sync },
1559 { "syscalls:sys_enter_sync_file_range", process_enter_sync },
1560 { "syscalls:sys_enter_fsync", process_enter_sync },
1561 { "syscalls:sys_enter_msync", process_enter_sync },
1562 { "syscalls:sys_enter_recvfrom", process_enter_rx },
1563 { "syscalls:sys_enter_recvmmsg", process_enter_rx },
1564 { "syscalls:sys_enter_recvmsg", process_enter_rx },
1565 { "syscalls:sys_enter_sendto", process_enter_tx },
1566 { "syscalls:sys_enter_sendmsg", process_enter_tx },
1567 { "syscalls:sys_enter_sendmmsg", process_enter_tx },
1568 { "syscalls:sys_enter_epoll_pwait", process_enter_poll },
1569 { "syscalls:sys_enter_epoll_wait", process_enter_poll },
1570 { "syscalls:sys_enter_poll", process_enter_poll },
1571 { "syscalls:sys_enter_ppoll", process_enter_poll },
1572 { "syscalls:sys_enter_pselect6", process_enter_poll },
1573 { "syscalls:sys_enter_select", process_enter_poll },
1574
1575 { "syscalls:sys_exit_read", process_exit_read },
1576 { "syscalls:sys_exit_pread64", process_exit_read },
1577 { "syscalls:sys_exit_readv", process_exit_read },
1578 { "syscalls:sys_exit_preadv", process_exit_read },
1579 { "syscalls:sys_exit_write", process_exit_write },
1580 { "syscalls:sys_exit_pwrite64", process_exit_write },
1581 { "syscalls:sys_exit_writev", process_exit_write },
1582 { "syscalls:sys_exit_pwritev", process_exit_write },
1583 { "syscalls:sys_exit_sync", process_exit_sync },
1584 { "syscalls:sys_exit_sync_file_range", process_exit_sync },
1585 { "syscalls:sys_exit_fsync", process_exit_sync },
1586 { "syscalls:sys_exit_msync", process_exit_sync },
1587 { "syscalls:sys_exit_recvfrom", process_exit_rx },
1588 { "syscalls:sys_exit_recvmmsg", process_exit_rx },
1589 { "syscalls:sys_exit_recvmsg", process_exit_rx },
1590 { "syscalls:sys_exit_sendto", process_exit_tx },
1591 { "syscalls:sys_exit_sendmsg", process_exit_tx },
1592 { "syscalls:sys_exit_sendmmsg", process_exit_tx },
1593 { "syscalls:sys_exit_epoll_pwait", process_exit_poll },
1594 { "syscalls:sys_exit_epoll_wait", process_exit_poll },
1595 { "syscalls:sys_exit_poll", process_exit_poll },
1596 { "syscalls:sys_exit_ppoll", process_exit_poll },
1597 { "syscalls:sys_exit_pselect6", process_exit_poll },
1598 { "syscalls:sys_exit_select", process_exit_poll },
1599 };
1600 struct perf_data_file file = {
1601 .path = input_name,
1602 .mode = PERF_DATA_MODE_READ,
1603 .force = tchart->force,
1604 };
1605
1606 struct perf_session *session = perf_session__new(&file, false,
1607 &tchart->tool);
1608 int ret = -EINVAL;
1609
1610 if (session == NULL)
1611 return -1;
1612
1613 symbol__init(&session->header.env);
1614
1615 (void)perf_header__process_sections(&session->header,
1616 perf_data_file__fd(session->file),
1617 tchart,
1618 process_header);
1619
1620 if (!perf_session__has_traces(session, "timechart record"))
1621 goto out_delete;
1622
1623 if (perf_session__set_tracepoints_handlers(session,
1624 power_tracepoints)) {
1625 pr_err("Initializing session tracepoint handlers failed\n");
1626 goto out_delete;
1627 }
1628
1629 ret = perf_session__process_events(session);
1630 if (ret)
1631 goto out_delete;
1632
1633 end_sample_processing(tchart);
1634
1635 sort_pids(tchart);
1636
1637 write_svg_file(tchart, output_name);
1638
1639 pr_info("Written %2.1f seconds of trace to %s.\n",
1640 (tchart->last_time - tchart->first_time) / 1000000000.0, output_name);
1641out_delete:
1642 perf_session__delete(session);
1643 return ret;
1644}
1645
1646static int timechart__io_record(int argc, const char **argv)
1647{
1648 unsigned int rec_argc, i;
1649 const char **rec_argv;
1650 const char **p;
1651 char *filter = NULL;
1652
1653 const char * const common_args[] = {
1654 "record", "-a", "-R", "-c", "1",
1655 };
1656 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1657
1658 const char * const disk_events[] = {
1659 "syscalls:sys_enter_read",
1660 "syscalls:sys_enter_pread64",
1661 "syscalls:sys_enter_readv",
1662 "syscalls:sys_enter_preadv",
1663 "syscalls:sys_enter_write",
1664 "syscalls:sys_enter_pwrite64",
1665 "syscalls:sys_enter_writev",
1666 "syscalls:sys_enter_pwritev",
1667 "syscalls:sys_enter_sync",
1668 "syscalls:sys_enter_sync_file_range",
1669 "syscalls:sys_enter_fsync",
1670 "syscalls:sys_enter_msync",
1671
1672 "syscalls:sys_exit_read",
1673 "syscalls:sys_exit_pread64",
1674 "syscalls:sys_exit_readv",
1675 "syscalls:sys_exit_preadv",
1676 "syscalls:sys_exit_write",
1677 "syscalls:sys_exit_pwrite64",
1678 "syscalls:sys_exit_writev",
1679 "syscalls:sys_exit_pwritev",
1680 "syscalls:sys_exit_sync",
1681 "syscalls:sys_exit_sync_file_range",
1682 "syscalls:sys_exit_fsync",
1683 "syscalls:sys_exit_msync",
1684 };
1685 unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
1686
1687 const char * const net_events[] = {
1688 "syscalls:sys_enter_recvfrom",
1689 "syscalls:sys_enter_recvmmsg",
1690 "syscalls:sys_enter_recvmsg",
1691 "syscalls:sys_enter_sendto",
1692 "syscalls:sys_enter_sendmsg",
1693 "syscalls:sys_enter_sendmmsg",
1694
1695 "syscalls:sys_exit_recvfrom",
1696 "syscalls:sys_exit_recvmmsg",
1697 "syscalls:sys_exit_recvmsg",
1698 "syscalls:sys_exit_sendto",
1699 "syscalls:sys_exit_sendmsg",
1700 "syscalls:sys_exit_sendmmsg",
1701 };
1702 unsigned int net_events_nr = ARRAY_SIZE(net_events);
1703
1704 const char * const poll_events[] = {
1705 "syscalls:sys_enter_epoll_pwait",
1706 "syscalls:sys_enter_epoll_wait",
1707 "syscalls:sys_enter_poll",
1708 "syscalls:sys_enter_ppoll",
1709 "syscalls:sys_enter_pselect6",
1710 "syscalls:sys_enter_select",
1711
1712 "syscalls:sys_exit_epoll_pwait",
1713 "syscalls:sys_exit_epoll_wait",
1714 "syscalls:sys_exit_poll",
1715 "syscalls:sys_exit_ppoll",
1716 "syscalls:sys_exit_pselect6",
1717 "syscalls:sys_exit_select",
1718 };
1719 unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
1720
1721 rec_argc = common_args_nr +
1722 disk_events_nr * 4 +
1723 net_events_nr * 4 +
1724 poll_events_nr * 4 +
1725 argc;
1726 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1727
1728 if (rec_argv == NULL)
1729 return -ENOMEM;
1730
1731 if (asprintf(&filter, "common_pid != %d", getpid()) < 0)
1732 return -ENOMEM;
1733
1734 p = rec_argv;
1735 for (i = 0; i < common_args_nr; i++)
1736 *p++ = strdup(common_args[i]);
1737
1738 for (i = 0; i < disk_events_nr; i++) {
1739 if (!is_valid_tracepoint(disk_events[i])) {
1740 rec_argc -= 4;
1741 continue;
1742 }
1743
1744 *p++ = "-e";
1745 *p++ = strdup(disk_events[i]);
1746 *p++ = "--filter";
1747 *p++ = filter;
1748 }
1749 for (i = 0; i < net_events_nr; i++) {
1750 if (!is_valid_tracepoint(net_events[i])) {
1751 rec_argc -= 4;
1752 continue;
1753 }
1754
1755 *p++ = "-e";
1756 *p++ = strdup(net_events[i]);
1757 *p++ = "--filter";
1758 *p++ = filter;
1759 }
1760 for (i = 0; i < poll_events_nr; i++) {
1761 if (!is_valid_tracepoint(poll_events[i])) {
1762 rec_argc -= 4;
1763 continue;
1764 }
1765
1766 *p++ = "-e";
1767 *p++ = strdup(poll_events[i]);
1768 *p++ = "--filter";
1769 *p++ = filter;
1770 }
1771
1772 for (i = 0; i < (unsigned int)argc; i++)
1773 *p++ = argv[i];
1774
1775 return cmd_record(rec_argc, rec_argv, NULL);
1776}
1777
1778
1779static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1780{
1781 unsigned int rec_argc, i, j;
1782 const char **rec_argv;
1783 const char **p;
1784 unsigned int record_elems;
1785
1786 const char * const common_args[] = {
1787 "record", "-a", "-R", "-c", "1",
1788 };
1789 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1790
1791 const char * const backtrace_args[] = {
1792 "-g",
1793 };
1794 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1795
1796 const char * const power_args[] = {
1797 "-e", "power:cpu_frequency",
1798 "-e", "power:cpu_idle",
1799 };
1800 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1801
1802 const char * const old_power_args[] = {
1803#ifdef SUPPORT_OLD_POWER_EVENTS
1804 "-e", "power:power_start",
1805 "-e", "power:power_end",
1806 "-e", "power:power_frequency",
1807#endif
1808 };
1809 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1810
1811 const char * const tasks_args[] = {
1812 "-e", "sched:sched_wakeup",
1813 "-e", "sched:sched_switch",
1814 };
1815 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1816
1817#ifdef SUPPORT_OLD_POWER_EVENTS
1818 if (!is_valid_tracepoint("power:cpu_idle") &&
1819 is_valid_tracepoint("power:power_start")) {
1820 use_old_power_events = 1;
1821 power_args_nr = 0;
1822 } else {
1823 old_power_args_nr = 0;
1824 }
1825#endif
1826
1827 if (tchart->power_only)
1828 tasks_args_nr = 0;
1829
1830 if (tchart->tasks_only) {
1831 power_args_nr = 0;
1832 old_power_args_nr = 0;
1833 }
1834
1835 if (!tchart->with_backtrace)
1836 backtrace_args_no = 0;
1837
1838 record_elems = common_args_nr + tasks_args_nr +
1839 power_args_nr + old_power_args_nr + backtrace_args_no;
1840
1841 rec_argc = record_elems + argc;
1842 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1843
1844 if (rec_argv == NULL)
1845 return -ENOMEM;
1846
1847 p = rec_argv;
1848 for (i = 0; i < common_args_nr; i++)
1849 *p++ = strdup(common_args[i]);
1850
1851 for (i = 0; i < backtrace_args_no; i++)
1852 *p++ = strdup(backtrace_args[i]);
1853
1854 for (i = 0; i < tasks_args_nr; i++)
1855 *p++ = strdup(tasks_args[i]);
1856
1857 for (i = 0; i < power_args_nr; i++)
1858 *p++ = strdup(power_args[i]);
1859
1860 for (i = 0; i < old_power_args_nr; i++)
1861 *p++ = strdup(old_power_args[i]);
1862
1863 for (j = 0; j < (unsigned int)argc; j++)
1864 *p++ = argv[j];
1865
1866 return cmd_record(rec_argc, rec_argv, NULL);
1867}
1868
1869static int
1870parse_process(const struct option *opt __maybe_unused, const char *arg,
1871 int __maybe_unused unset)
1872{
1873 if (arg)
1874 add_process_filter(arg);
1875 return 0;
1876}
1877
1878static int
1879parse_highlight(const struct option *opt __maybe_unused, const char *arg,
1880 int __maybe_unused unset)
1881{
1882 unsigned long duration = strtoul(arg, NULL, 0);
1883
1884 if (svg_highlight || svg_highlight_name)
1885 return -1;
1886
1887 if (duration)
1888 svg_highlight = duration;
1889 else
1890 svg_highlight_name = strdup(arg);
1891
1892 return 0;
1893}
1894
1895static int
1896parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
1897{
1898 char unit = 'n';
1899 u64 *value = opt->value;
1900
1901 if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
1902 switch (unit) {
1903 case 'm':
1904 *value *= 1000000;
1905 break;
1906 case 'u':
1907 *value *= 1000;
1908 break;
1909 case 'n':
1910 break;
1911 default:
1912 return -1;
1913 }
1914 }
1915
1916 return 0;
1917}
1918
1919int cmd_timechart(int argc, const char **argv,
1920 const char *prefix __maybe_unused)
1921{
1922 struct timechart tchart = {
1923 .tool = {
1924 .comm = process_comm_event,
1925 .fork = process_fork_event,
1926 .exit = process_exit_event,
1927 .sample = process_sample_event,
1928 .ordered_events = true,
1929 },
1930 .proc_num = 15,
1931 .min_time = 1000000,
1932 .merge_dist = 1000,
1933 };
1934 const char *output_name = "output.svg";
1935 const struct option timechart_options[] = {
1936 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1937 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1938 OPT_INTEGER('w', "width", &svg_page_width, "page width"),
1939 OPT_CALLBACK(0, "highlight", NULL, "duration or task name",
1940 "highlight tasks. Pass duration in ns or process name.",
1941 parse_highlight),
1942 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1943 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
1944 "output processes data only"),
1945 OPT_CALLBACK('p', "process", NULL, "process",
1946 "process selector. Pass a pid or process name.",
1947 parse_process),
1948 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1949 "Look for files with symbols relative to this directory"),
1950 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1951 "min. number of tasks to print"),
1952 OPT_BOOLEAN('t', "topology", &tchart.topology,
1953 "sort CPUs according to topology"),
1954 OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
1955 "skip EAGAIN errors"),
1956 OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
1957 "all IO faster than min-time will visually appear longer",
1958 parse_time),
1959 OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
1960 "merge events that are merge-dist us apart",
1961 parse_time),
1962 OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
1963 OPT_END()
1964 };
1965 const char * const timechart_subcommands[] = { "record", NULL };
1966 const char *timechart_usage[] = {
1967 "perf timechart [<options>] {record}",
1968 NULL
1969 };
1970
1971 const struct option timechart_record_options[] = {
1972 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1973 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
1974 "output processes data only"),
1975 OPT_BOOLEAN('I', "io-only", &tchart.io_only,
1976 "record only IO data"),
1977 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1978 OPT_END()
1979 };
1980 const char * const timechart_record_usage[] = {
1981 "perf timechart record [<options>]",
1982 NULL
1983 };
1984 argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
1985 timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
1986
1987 if (tchart.power_only && tchart.tasks_only) {
1988 pr_err("-P and -T options cannot be used at the same time.\n");
1989 return -1;
1990 }
1991
1992 if (argc && !strncmp(argv[0], "rec", 3)) {
1993 argc = parse_options(argc, argv, timechart_record_options,
1994 timechart_record_usage,
1995 PARSE_OPT_STOP_AT_NON_OPTION);
1996
1997 if (tchart.power_only && tchart.tasks_only) {
1998 pr_err("-P and -T options cannot be used at the same time.\n");
1999 return -1;
2000 }
2001
2002 if (tchart.io_only)
2003 return timechart__io_record(argc, argv);
2004 else
2005 return timechart__record(&tchart, argc, argv);
2006 } else if (argc)
2007 usage_with_options(timechart_usage, timechart_options);
2008
2009 setup_pager();
2010
2011 return __cmd_timechart(&tchart, output_name);
2012}
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 <errno.h>
16#include <inttypes.h>
17#include <traceevent/event-parse.h>
18
19#include "builtin.h"
20
21#include "util/util.h"
22
23#include "util/color.h"
24#include <linux/list.h>
25#include "util/cache.h"
26#include "util/evlist.h"
27#include "util/evsel.h"
28#include <linux/kernel.h>
29#include <linux/rbtree.h>
30#include <linux/time64.h>
31#include "util/symbol.h"
32#include "util/thread.h"
33#include "util/callchain.h"
34
35#include "perf.h"
36#include "util/header.h"
37#include <subcmd/parse-options.h>
38#include "util/parse-events.h"
39#include "util/event.h"
40#include "util/session.h"
41#include "util/svghelper.h"
42#include "util/tool.h"
43#include "util/data.h"
44#include "util/debug.h"
45
46#define SUPPORT_OLD_POWER_EVENTS 1
47#define PWR_EVENT_EXIT -1
48
49struct per_pid;
50struct power_event;
51struct wake_event;
52
53struct timechart {
54 struct perf_tool tool;
55 struct per_pid *all_data;
56 struct power_event *power_events;
57 struct wake_event *wake_events;
58 int proc_num;
59 unsigned int numcpus;
60 u64 min_freq, /* Lowest CPU frequency seen */
61 max_freq, /* Highest CPU frequency seen */
62 turbo_frequency,
63 first_time, last_time;
64 bool power_only,
65 tasks_only,
66 with_backtrace,
67 topology;
68 bool force;
69 /* IO related settings */
70 bool io_only,
71 skip_eagain;
72 u64 io_events;
73 u64 min_time,
74 merge_dist;
75};
76
77struct per_pidcomm;
78struct cpu_sample;
79struct io_sample;
80
81/*
82 * Datastructure layout:
83 * We keep an list of "pid"s, matching the kernels notion of a task struct.
84 * Each "pid" entry, has a list of "comm"s.
85 * this is because we want to track different programs different, while
86 * exec will reuse the original pid (by design).
87 * Each comm has a list of samples that will be used to draw
88 * final graph.
89 */
90
91struct per_pid {
92 struct per_pid *next;
93
94 int pid;
95 int ppid;
96
97 u64 start_time;
98 u64 end_time;
99 u64 total_time;
100 u64 total_bytes;
101 int display;
102
103 struct per_pidcomm *all;
104 struct per_pidcomm *current;
105};
106
107
108struct per_pidcomm {
109 struct per_pidcomm *next;
110
111 u64 start_time;
112 u64 end_time;
113 u64 total_time;
114 u64 max_bytes;
115 u64 total_bytes;
116
117 int Y;
118 int display;
119
120 long state;
121 u64 state_since;
122
123 char *comm;
124
125 struct cpu_sample *samples;
126 struct io_sample *io_samples;
127};
128
129struct sample_wrapper {
130 struct sample_wrapper *next;
131
132 u64 timestamp;
133 unsigned char data[0];
134};
135
136#define TYPE_NONE 0
137#define TYPE_RUNNING 1
138#define TYPE_WAITING 2
139#define TYPE_BLOCKED 3
140
141struct cpu_sample {
142 struct cpu_sample *next;
143
144 u64 start_time;
145 u64 end_time;
146 int type;
147 int cpu;
148 const char *backtrace;
149};
150
151enum {
152 IOTYPE_READ,
153 IOTYPE_WRITE,
154 IOTYPE_SYNC,
155 IOTYPE_TX,
156 IOTYPE_RX,
157 IOTYPE_POLL,
158};
159
160struct io_sample {
161 struct io_sample *next;
162
163 u64 start_time;
164 u64 end_time;
165 u64 bytes;
166 int type;
167 int fd;
168 int err;
169 int merges;
170};
171
172#define CSTATE 1
173#define PSTATE 2
174
175struct power_event {
176 struct power_event *next;
177 int type;
178 int state;
179 u64 start_time;
180 u64 end_time;
181 int cpu;
182};
183
184struct wake_event {
185 struct wake_event *next;
186 int waker;
187 int wakee;
188 u64 time;
189 const char *backtrace;
190};
191
192struct process_filter {
193 char *name;
194 int pid;
195 struct process_filter *next;
196};
197
198static struct process_filter *process_filter;
199
200
201static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
202{
203 struct per_pid *cursor = tchart->all_data;
204
205 while (cursor) {
206 if (cursor->pid == pid)
207 return cursor;
208 cursor = cursor->next;
209 }
210 cursor = zalloc(sizeof(*cursor));
211 assert(cursor != NULL);
212 cursor->pid = pid;
213 cursor->next = tchart->all_data;
214 tchart->all_data = cursor;
215 return cursor;
216}
217
218static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
219{
220 struct per_pid *p;
221 struct per_pidcomm *c;
222 p = find_create_pid(tchart, pid);
223 c = p->all;
224 while (c) {
225 if (c->comm && strcmp(c->comm, comm) == 0) {
226 p->current = c;
227 return;
228 }
229 if (!c->comm) {
230 c->comm = strdup(comm);
231 p->current = c;
232 return;
233 }
234 c = c->next;
235 }
236 c = zalloc(sizeof(*c));
237 assert(c != NULL);
238 c->comm = strdup(comm);
239 p->current = c;
240 c->next = p->all;
241 p->all = c;
242}
243
244static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
245{
246 struct per_pid *p, *pp;
247 p = find_create_pid(tchart, pid);
248 pp = find_create_pid(tchart, ppid);
249 p->ppid = ppid;
250 if (pp->current && pp->current->comm && !p->current)
251 pid_set_comm(tchart, pid, pp->current->comm);
252
253 p->start_time = timestamp;
254 if (p->current && !p->current->start_time) {
255 p->current->start_time = timestamp;
256 p->current->state_since = timestamp;
257 }
258}
259
260static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
261{
262 struct per_pid *p;
263 p = find_create_pid(tchart, pid);
264 p->end_time = timestamp;
265 if (p->current)
266 p->current->end_time = timestamp;
267}
268
269static void pid_put_sample(struct timechart *tchart, int pid, int type,
270 unsigned int cpu, u64 start, u64 end,
271 const char *backtrace)
272{
273 struct per_pid *p;
274 struct per_pidcomm *c;
275 struct cpu_sample *sample;
276
277 p = find_create_pid(tchart, pid);
278 c = p->current;
279 if (!c) {
280 c = zalloc(sizeof(*c));
281 assert(c != NULL);
282 p->current = c;
283 c->next = p->all;
284 p->all = c;
285 }
286
287 sample = zalloc(sizeof(*sample));
288 assert(sample != NULL);
289 sample->start_time = start;
290 sample->end_time = end;
291 sample->type = type;
292 sample->next = c->samples;
293 sample->cpu = cpu;
294 sample->backtrace = backtrace;
295 c->samples = sample;
296
297 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
298 c->total_time += (end-start);
299 p->total_time += (end-start);
300 }
301
302 if (c->start_time == 0 || c->start_time > start)
303 c->start_time = start;
304 if (p->start_time == 0 || p->start_time > start)
305 p->start_time = start;
306}
307
308#define MAX_CPUS 4096
309
310static u64 cpus_cstate_start_times[MAX_CPUS];
311static int cpus_cstate_state[MAX_CPUS];
312static u64 cpus_pstate_start_times[MAX_CPUS];
313static u64 cpus_pstate_state[MAX_CPUS];
314
315static int process_comm_event(struct perf_tool *tool,
316 union perf_event *event,
317 struct perf_sample *sample __maybe_unused,
318 struct machine *machine __maybe_unused)
319{
320 struct timechart *tchart = container_of(tool, struct timechart, tool);
321 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
322 return 0;
323}
324
325static int process_fork_event(struct perf_tool *tool,
326 union perf_event *event,
327 struct perf_sample *sample __maybe_unused,
328 struct machine *machine __maybe_unused)
329{
330 struct timechart *tchart = container_of(tool, struct timechart, tool);
331 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
332 return 0;
333}
334
335static int process_exit_event(struct perf_tool *tool,
336 union perf_event *event,
337 struct perf_sample *sample __maybe_unused,
338 struct machine *machine __maybe_unused)
339{
340 struct timechart *tchart = container_of(tool, struct timechart, tool);
341 pid_exit(tchart, event->fork.pid, event->fork.time);
342 return 0;
343}
344
345#ifdef SUPPORT_OLD_POWER_EVENTS
346static int use_old_power_events;
347#endif
348
349static void c_state_start(int cpu, u64 timestamp, int state)
350{
351 cpus_cstate_start_times[cpu] = timestamp;
352 cpus_cstate_state[cpu] = state;
353}
354
355static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
356{
357 struct power_event *pwr = zalloc(sizeof(*pwr));
358
359 if (!pwr)
360 return;
361
362 pwr->state = cpus_cstate_state[cpu];
363 pwr->start_time = cpus_cstate_start_times[cpu];
364 pwr->end_time = timestamp;
365 pwr->cpu = cpu;
366 pwr->type = CSTATE;
367 pwr->next = tchart->power_events;
368
369 tchart->power_events = pwr;
370}
371
372static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
373{
374 struct power_event *pwr;
375
376 if (new_freq > 8000000) /* detect invalid data */
377 return;
378
379 pwr = zalloc(sizeof(*pwr));
380 if (!pwr)
381 return;
382
383 pwr->state = cpus_pstate_state[cpu];
384 pwr->start_time = cpus_pstate_start_times[cpu];
385 pwr->end_time = timestamp;
386 pwr->cpu = cpu;
387 pwr->type = PSTATE;
388 pwr->next = tchart->power_events;
389
390 if (!pwr->start_time)
391 pwr->start_time = tchart->first_time;
392
393 tchart->power_events = pwr;
394
395 cpus_pstate_state[cpu] = new_freq;
396 cpus_pstate_start_times[cpu] = timestamp;
397
398 if ((u64)new_freq > tchart->max_freq)
399 tchart->max_freq = new_freq;
400
401 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
402 tchart->min_freq = new_freq;
403
404 if (new_freq == tchart->max_freq - 1000)
405 tchart->turbo_frequency = tchart->max_freq;
406}
407
408static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
409 int waker, int wakee, u8 flags, const char *backtrace)
410{
411 struct per_pid *p;
412 struct wake_event *we = zalloc(sizeof(*we));
413
414 if (!we)
415 return;
416
417 we->time = timestamp;
418 we->waker = waker;
419 we->backtrace = backtrace;
420
421 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
422 we->waker = -1;
423
424 we->wakee = wakee;
425 we->next = tchart->wake_events;
426 tchart->wake_events = we;
427 p = find_create_pid(tchart, we->wakee);
428
429 if (p && p->current && p->current->state == TYPE_NONE) {
430 p->current->state_since = timestamp;
431 p->current->state = TYPE_WAITING;
432 }
433 if (p && p->current && p->current->state == TYPE_BLOCKED) {
434 pid_put_sample(tchart, p->pid, p->current->state, cpu,
435 p->current->state_since, timestamp, NULL);
436 p->current->state_since = timestamp;
437 p->current->state = TYPE_WAITING;
438 }
439}
440
441static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
442 int prev_pid, int next_pid, u64 prev_state,
443 const char *backtrace)
444{
445 struct per_pid *p = NULL, *prev_p;
446
447 prev_p = find_create_pid(tchart, prev_pid);
448
449 p = find_create_pid(tchart, next_pid);
450
451 if (prev_p->current && prev_p->current->state != TYPE_NONE)
452 pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
453 prev_p->current->state_since, timestamp,
454 backtrace);
455 if (p && p->current) {
456 if (p->current->state != TYPE_NONE)
457 pid_put_sample(tchart, next_pid, p->current->state, cpu,
458 p->current->state_since, timestamp,
459 backtrace);
460
461 p->current->state_since = timestamp;
462 p->current->state = TYPE_RUNNING;
463 }
464
465 if (prev_p->current) {
466 prev_p->current->state = TYPE_NONE;
467 prev_p->current->state_since = timestamp;
468 if (prev_state & 2)
469 prev_p->current->state = TYPE_BLOCKED;
470 if (prev_state == 0)
471 prev_p->current->state = TYPE_WAITING;
472 }
473}
474
475static const char *cat_backtrace(union perf_event *event,
476 struct perf_sample *sample,
477 struct machine *machine)
478{
479 struct addr_location al;
480 unsigned int i;
481 char *p = NULL;
482 size_t p_len;
483 u8 cpumode = PERF_RECORD_MISC_USER;
484 struct addr_location tal;
485 struct ip_callchain *chain = sample->callchain;
486 FILE *f = open_memstream(&p, &p_len);
487
488 if (!f) {
489 perror("open_memstream error");
490 return NULL;
491 }
492
493 if (!chain)
494 goto exit;
495
496 if (machine__resolve(machine, &al, sample) < 0) {
497 fprintf(stderr, "problem processing %d event, skipping it.\n",
498 event->header.type);
499 goto exit;
500 }
501
502 for (i = 0; i < chain->nr; i++) {
503 u64 ip;
504
505 if (callchain_param.order == ORDER_CALLEE)
506 ip = chain->ips[i];
507 else
508 ip = chain->ips[chain->nr - i - 1];
509
510 if (ip >= PERF_CONTEXT_MAX) {
511 switch (ip) {
512 case PERF_CONTEXT_HV:
513 cpumode = PERF_RECORD_MISC_HYPERVISOR;
514 break;
515 case PERF_CONTEXT_KERNEL:
516 cpumode = PERF_RECORD_MISC_KERNEL;
517 break;
518 case PERF_CONTEXT_USER:
519 cpumode = PERF_RECORD_MISC_USER;
520 break;
521 default:
522 pr_debug("invalid callchain context: "
523 "%"PRId64"\n", (s64) ip);
524
525 /*
526 * It seems the callchain is corrupted.
527 * Discard all.
528 */
529 zfree(&p);
530 goto exit_put;
531 }
532 continue;
533 }
534
535 tal.filtered = 0;
536 thread__find_addr_location(al.thread, cpumode,
537 MAP__FUNCTION, ip, &tal);
538
539 if (tal.sym)
540 fprintf(f, "..... %016" PRIx64 " %s\n", ip,
541 tal.sym->name);
542 else
543 fprintf(f, "..... %016" PRIx64 "\n", ip);
544 }
545exit_put:
546 addr_location__put(&al);
547exit:
548 fclose(f);
549
550 return p;
551}
552
553typedef int (*tracepoint_handler)(struct timechart *tchart,
554 struct perf_evsel *evsel,
555 struct perf_sample *sample,
556 const char *backtrace);
557
558static int process_sample_event(struct perf_tool *tool,
559 union perf_event *event,
560 struct perf_sample *sample,
561 struct perf_evsel *evsel,
562 struct machine *machine)
563{
564 struct timechart *tchart = container_of(tool, struct timechart, tool);
565
566 if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
567 if (!tchart->first_time || tchart->first_time > sample->time)
568 tchart->first_time = sample->time;
569 if (tchart->last_time < sample->time)
570 tchart->last_time = sample->time;
571 }
572
573 if (evsel->handler != NULL) {
574 tracepoint_handler f = evsel->handler;
575 return f(tchart, evsel, sample,
576 cat_backtrace(event, sample, machine));
577 }
578
579 return 0;
580}
581
582static int
583process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
584 struct perf_evsel *evsel,
585 struct perf_sample *sample,
586 const char *backtrace __maybe_unused)
587{
588 u32 state = perf_evsel__intval(evsel, sample, "state");
589 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
590
591 if (state == (u32)PWR_EVENT_EXIT)
592 c_state_end(tchart, cpu_id, sample->time);
593 else
594 c_state_start(cpu_id, sample->time, state);
595 return 0;
596}
597
598static int
599process_sample_cpu_frequency(struct timechart *tchart,
600 struct perf_evsel *evsel,
601 struct perf_sample *sample,
602 const char *backtrace __maybe_unused)
603{
604 u32 state = perf_evsel__intval(evsel, sample, "state");
605 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
606
607 p_state_change(tchart, cpu_id, sample->time, state);
608 return 0;
609}
610
611static int
612process_sample_sched_wakeup(struct timechart *tchart,
613 struct perf_evsel *evsel,
614 struct perf_sample *sample,
615 const char *backtrace)
616{
617 u8 flags = perf_evsel__intval(evsel, sample, "common_flags");
618 int waker = perf_evsel__intval(evsel, sample, "common_pid");
619 int wakee = perf_evsel__intval(evsel, sample, "pid");
620
621 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
622 return 0;
623}
624
625static int
626process_sample_sched_switch(struct timechart *tchart,
627 struct perf_evsel *evsel,
628 struct perf_sample *sample,
629 const char *backtrace)
630{
631 int prev_pid = perf_evsel__intval(evsel, sample, "prev_pid");
632 int next_pid = perf_evsel__intval(evsel, sample, "next_pid");
633 u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state");
634
635 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
636 prev_state, backtrace);
637 return 0;
638}
639
640#ifdef SUPPORT_OLD_POWER_EVENTS
641static int
642process_sample_power_start(struct timechart *tchart __maybe_unused,
643 struct perf_evsel *evsel,
644 struct perf_sample *sample,
645 const char *backtrace __maybe_unused)
646{
647 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
648 u64 value = perf_evsel__intval(evsel, sample, "value");
649
650 c_state_start(cpu_id, sample->time, value);
651 return 0;
652}
653
654static int
655process_sample_power_end(struct timechart *tchart,
656 struct perf_evsel *evsel __maybe_unused,
657 struct perf_sample *sample,
658 const char *backtrace __maybe_unused)
659{
660 c_state_end(tchart, sample->cpu, sample->time);
661 return 0;
662}
663
664static int
665process_sample_power_frequency(struct timechart *tchart,
666 struct perf_evsel *evsel,
667 struct perf_sample *sample,
668 const char *backtrace __maybe_unused)
669{
670 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
671 u64 value = perf_evsel__intval(evsel, sample, "value");
672
673 p_state_change(tchart, cpu_id, sample->time, value);
674 return 0;
675}
676#endif /* SUPPORT_OLD_POWER_EVENTS */
677
678/*
679 * After the last sample we need to wrap up the current C/P state
680 * and close out each CPU for these.
681 */
682static void end_sample_processing(struct timechart *tchart)
683{
684 u64 cpu;
685 struct power_event *pwr;
686
687 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
688 /* C state */
689#if 0
690 pwr = zalloc(sizeof(*pwr));
691 if (!pwr)
692 return;
693
694 pwr->state = cpus_cstate_state[cpu];
695 pwr->start_time = cpus_cstate_start_times[cpu];
696 pwr->end_time = tchart->last_time;
697 pwr->cpu = cpu;
698 pwr->type = CSTATE;
699 pwr->next = tchart->power_events;
700
701 tchart->power_events = pwr;
702#endif
703 /* P state */
704
705 pwr = zalloc(sizeof(*pwr));
706 if (!pwr)
707 return;
708
709 pwr->state = cpus_pstate_state[cpu];
710 pwr->start_time = cpus_pstate_start_times[cpu];
711 pwr->end_time = tchart->last_time;
712 pwr->cpu = cpu;
713 pwr->type = PSTATE;
714 pwr->next = tchart->power_events;
715
716 if (!pwr->start_time)
717 pwr->start_time = tchart->first_time;
718 if (!pwr->state)
719 pwr->state = tchart->min_freq;
720 tchart->power_events = pwr;
721 }
722}
723
724static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
725 u64 start, int fd)
726{
727 struct per_pid *p = find_create_pid(tchart, pid);
728 struct per_pidcomm *c = p->current;
729 struct io_sample *sample;
730 struct io_sample *prev;
731
732 if (!c) {
733 c = zalloc(sizeof(*c));
734 if (!c)
735 return -ENOMEM;
736 p->current = c;
737 c->next = p->all;
738 p->all = c;
739 }
740
741 prev = c->io_samples;
742
743 if (prev && prev->start_time && !prev->end_time) {
744 pr_warning("Skip invalid start event: "
745 "previous event already started!\n");
746
747 /* remove previous event that has been started,
748 * we are not sure we will ever get an end for it */
749 c->io_samples = prev->next;
750 free(prev);
751 return 0;
752 }
753
754 sample = zalloc(sizeof(*sample));
755 if (!sample)
756 return -ENOMEM;
757 sample->start_time = start;
758 sample->type = type;
759 sample->fd = fd;
760 sample->next = c->io_samples;
761 c->io_samples = sample;
762
763 if (c->start_time == 0 || c->start_time > start)
764 c->start_time = start;
765
766 return 0;
767}
768
769static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
770 u64 end, long ret)
771{
772 struct per_pid *p = find_create_pid(tchart, pid);
773 struct per_pidcomm *c = p->current;
774 struct io_sample *sample, *prev;
775
776 if (!c) {
777 pr_warning("Invalid pidcomm!\n");
778 return -1;
779 }
780
781 sample = c->io_samples;
782
783 if (!sample) /* skip partially captured events */
784 return 0;
785
786 if (sample->end_time) {
787 pr_warning("Skip invalid end event: "
788 "previous event already ended!\n");
789 return 0;
790 }
791
792 if (sample->type != type) {
793 pr_warning("Skip invalid end event: invalid event type!\n");
794 return 0;
795 }
796
797 sample->end_time = end;
798 prev = sample->next;
799
800 /* we want to be able to see small and fast transfers, so make them
801 * at least min_time long, but don't overlap them */
802 if (sample->end_time - sample->start_time < tchart->min_time)
803 sample->end_time = sample->start_time + tchart->min_time;
804 if (prev && sample->start_time < prev->end_time) {
805 if (prev->err) /* try to make errors more visible */
806 sample->start_time = prev->end_time;
807 else
808 prev->end_time = sample->start_time;
809 }
810
811 if (ret < 0) {
812 sample->err = ret;
813 } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
814 type == IOTYPE_TX || type == IOTYPE_RX) {
815
816 if ((u64)ret > c->max_bytes)
817 c->max_bytes = ret;
818
819 c->total_bytes += ret;
820 p->total_bytes += ret;
821 sample->bytes = ret;
822 }
823
824 /* merge two requests to make svg smaller and render-friendly */
825 if (prev &&
826 prev->type == sample->type &&
827 prev->err == sample->err &&
828 prev->fd == sample->fd &&
829 prev->end_time + tchart->merge_dist >= sample->start_time) {
830
831 sample->bytes += prev->bytes;
832 sample->merges += prev->merges + 1;
833
834 sample->start_time = prev->start_time;
835 sample->next = prev->next;
836 free(prev);
837
838 if (!sample->err && sample->bytes > c->max_bytes)
839 c->max_bytes = sample->bytes;
840 }
841
842 tchart->io_events++;
843
844 return 0;
845}
846
847static int
848process_enter_read(struct timechart *tchart,
849 struct perf_evsel *evsel,
850 struct perf_sample *sample)
851{
852 long fd = perf_evsel__intval(evsel, sample, "fd");
853 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
854 sample->time, fd);
855}
856
857static int
858process_exit_read(struct timechart *tchart,
859 struct perf_evsel *evsel,
860 struct perf_sample *sample)
861{
862 long ret = perf_evsel__intval(evsel, sample, "ret");
863 return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
864 sample->time, ret);
865}
866
867static int
868process_enter_write(struct timechart *tchart,
869 struct perf_evsel *evsel,
870 struct perf_sample *sample)
871{
872 long fd = perf_evsel__intval(evsel, sample, "fd");
873 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
874 sample->time, fd);
875}
876
877static int
878process_exit_write(struct timechart *tchart,
879 struct perf_evsel *evsel,
880 struct perf_sample *sample)
881{
882 long ret = perf_evsel__intval(evsel, sample, "ret");
883 return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
884 sample->time, ret);
885}
886
887static int
888process_enter_sync(struct timechart *tchart,
889 struct perf_evsel *evsel,
890 struct perf_sample *sample)
891{
892 long fd = perf_evsel__intval(evsel, sample, "fd");
893 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
894 sample->time, fd);
895}
896
897static int
898process_exit_sync(struct timechart *tchart,
899 struct perf_evsel *evsel,
900 struct perf_sample *sample)
901{
902 long ret = perf_evsel__intval(evsel, sample, "ret");
903 return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
904 sample->time, ret);
905}
906
907static int
908process_enter_tx(struct timechart *tchart,
909 struct perf_evsel *evsel,
910 struct perf_sample *sample)
911{
912 long fd = perf_evsel__intval(evsel, sample, "fd");
913 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
914 sample->time, fd);
915}
916
917static int
918process_exit_tx(struct timechart *tchart,
919 struct perf_evsel *evsel,
920 struct perf_sample *sample)
921{
922 long ret = perf_evsel__intval(evsel, sample, "ret");
923 return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
924 sample->time, ret);
925}
926
927static int
928process_enter_rx(struct timechart *tchart,
929 struct perf_evsel *evsel,
930 struct perf_sample *sample)
931{
932 long fd = perf_evsel__intval(evsel, sample, "fd");
933 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
934 sample->time, fd);
935}
936
937static int
938process_exit_rx(struct timechart *tchart,
939 struct perf_evsel *evsel,
940 struct perf_sample *sample)
941{
942 long ret = perf_evsel__intval(evsel, sample, "ret");
943 return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
944 sample->time, ret);
945}
946
947static int
948process_enter_poll(struct timechart *tchart,
949 struct perf_evsel *evsel,
950 struct perf_sample *sample)
951{
952 long fd = perf_evsel__intval(evsel, sample, "fd");
953 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
954 sample->time, fd);
955}
956
957static int
958process_exit_poll(struct timechart *tchart,
959 struct perf_evsel *evsel,
960 struct perf_sample *sample)
961{
962 long ret = perf_evsel__intval(evsel, sample, "ret");
963 return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
964 sample->time, ret);
965}
966
967/*
968 * Sort the pid datastructure
969 */
970static void sort_pids(struct timechart *tchart)
971{
972 struct per_pid *new_list, *p, *cursor, *prev;
973 /* sort by ppid first, then by pid, lowest to highest */
974
975 new_list = NULL;
976
977 while (tchart->all_data) {
978 p = tchart->all_data;
979 tchart->all_data = p->next;
980 p->next = NULL;
981
982 if (new_list == NULL) {
983 new_list = p;
984 p->next = NULL;
985 continue;
986 }
987 prev = NULL;
988 cursor = new_list;
989 while (cursor) {
990 if (cursor->ppid > p->ppid ||
991 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
992 /* must insert before */
993 if (prev) {
994 p->next = prev->next;
995 prev->next = p;
996 cursor = NULL;
997 continue;
998 } else {
999 p->next = new_list;
1000 new_list = p;
1001 cursor = NULL;
1002 continue;
1003 }
1004 }
1005
1006 prev = cursor;
1007 cursor = cursor->next;
1008 if (!cursor)
1009 prev->next = p;
1010 }
1011 }
1012 tchart->all_data = new_list;
1013}
1014
1015
1016static void draw_c_p_states(struct timechart *tchart)
1017{
1018 struct power_event *pwr;
1019 pwr = tchart->power_events;
1020
1021 /*
1022 * two pass drawing so that the P state bars are on top of the C state blocks
1023 */
1024 while (pwr) {
1025 if (pwr->type == CSTATE)
1026 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1027 pwr = pwr->next;
1028 }
1029
1030 pwr = tchart->power_events;
1031 while (pwr) {
1032 if (pwr->type == PSTATE) {
1033 if (!pwr->state)
1034 pwr->state = tchart->min_freq;
1035 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1036 }
1037 pwr = pwr->next;
1038 }
1039}
1040
1041static void draw_wakeups(struct timechart *tchart)
1042{
1043 struct wake_event *we;
1044 struct per_pid *p;
1045 struct per_pidcomm *c;
1046
1047 we = tchart->wake_events;
1048 while (we) {
1049 int from = 0, to = 0;
1050 char *task_from = NULL, *task_to = NULL;
1051
1052 /* locate the column of the waker and wakee */
1053 p = tchart->all_data;
1054 while (p) {
1055 if (p->pid == we->waker || p->pid == we->wakee) {
1056 c = p->all;
1057 while (c) {
1058 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
1059 if (p->pid == we->waker && !from) {
1060 from = c->Y;
1061 task_from = strdup(c->comm);
1062 }
1063 if (p->pid == we->wakee && !to) {
1064 to = c->Y;
1065 task_to = strdup(c->comm);
1066 }
1067 }
1068 c = c->next;
1069 }
1070 c = p->all;
1071 while (c) {
1072 if (p->pid == we->waker && !from) {
1073 from = c->Y;
1074 task_from = strdup(c->comm);
1075 }
1076 if (p->pid == we->wakee && !to) {
1077 to = c->Y;
1078 task_to = strdup(c->comm);
1079 }
1080 c = c->next;
1081 }
1082 }
1083 p = p->next;
1084 }
1085
1086 if (!task_from) {
1087 task_from = malloc(40);
1088 sprintf(task_from, "[%i]", we->waker);
1089 }
1090 if (!task_to) {
1091 task_to = malloc(40);
1092 sprintf(task_to, "[%i]", we->wakee);
1093 }
1094
1095 if (we->waker == -1)
1096 svg_interrupt(we->time, to, we->backtrace);
1097 else if (from && to && abs(from - to) == 1)
1098 svg_wakeline(we->time, from, to, we->backtrace);
1099 else
1100 svg_partial_wakeline(we->time, from, task_from, to,
1101 task_to, we->backtrace);
1102 we = we->next;
1103
1104 free(task_from);
1105 free(task_to);
1106 }
1107}
1108
1109static void draw_cpu_usage(struct timechart *tchart)
1110{
1111 struct per_pid *p;
1112 struct per_pidcomm *c;
1113 struct cpu_sample *sample;
1114 p = tchart->all_data;
1115 while (p) {
1116 c = p->all;
1117 while (c) {
1118 sample = c->samples;
1119 while (sample) {
1120 if (sample->type == TYPE_RUNNING) {
1121 svg_process(sample->cpu,
1122 sample->start_time,
1123 sample->end_time,
1124 p->pid,
1125 c->comm,
1126 sample->backtrace);
1127 }
1128
1129 sample = sample->next;
1130 }
1131 c = c->next;
1132 }
1133 p = p->next;
1134 }
1135}
1136
1137static void draw_io_bars(struct timechart *tchart)
1138{
1139 const char *suf;
1140 double bytes;
1141 char comm[256];
1142 struct per_pid *p;
1143 struct per_pidcomm *c;
1144 struct io_sample *sample;
1145 int Y = 1;
1146
1147 p = tchart->all_data;
1148 while (p) {
1149 c = p->all;
1150 while (c) {
1151 if (!c->display) {
1152 c->Y = 0;
1153 c = c->next;
1154 continue;
1155 }
1156
1157 svg_box(Y, c->start_time, c->end_time, "process3");
1158 sample = c->io_samples;
1159 for (sample = c->io_samples; sample; sample = sample->next) {
1160 double h = (double)sample->bytes / c->max_bytes;
1161
1162 if (tchart->skip_eagain &&
1163 sample->err == -EAGAIN)
1164 continue;
1165
1166 if (sample->err)
1167 h = 1;
1168
1169 if (sample->type == IOTYPE_SYNC)
1170 svg_fbox(Y,
1171 sample->start_time,
1172 sample->end_time,
1173 1,
1174 sample->err ? "error" : "sync",
1175 sample->fd,
1176 sample->err,
1177 sample->merges);
1178 else if (sample->type == IOTYPE_POLL)
1179 svg_fbox(Y,
1180 sample->start_time,
1181 sample->end_time,
1182 1,
1183 sample->err ? "error" : "poll",
1184 sample->fd,
1185 sample->err,
1186 sample->merges);
1187 else if (sample->type == IOTYPE_READ)
1188 svg_ubox(Y,
1189 sample->start_time,
1190 sample->end_time,
1191 h,
1192 sample->err ? "error" : "disk",
1193 sample->fd,
1194 sample->err,
1195 sample->merges);
1196 else if (sample->type == IOTYPE_WRITE)
1197 svg_lbox(Y,
1198 sample->start_time,
1199 sample->end_time,
1200 h,
1201 sample->err ? "error" : "disk",
1202 sample->fd,
1203 sample->err,
1204 sample->merges);
1205 else if (sample->type == IOTYPE_RX)
1206 svg_ubox(Y,
1207 sample->start_time,
1208 sample->end_time,
1209 h,
1210 sample->err ? "error" : "net",
1211 sample->fd,
1212 sample->err,
1213 sample->merges);
1214 else if (sample->type == IOTYPE_TX)
1215 svg_lbox(Y,
1216 sample->start_time,
1217 sample->end_time,
1218 h,
1219 sample->err ? "error" : "net",
1220 sample->fd,
1221 sample->err,
1222 sample->merges);
1223 }
1224
1225 suf = "";
1226 bytes = c->total_bytes;
1227 if (bytes > 1024) {
1228 bytes = bytes / 1024;
1229 suf = "K";
1230 }
1231 if (bytes > 1024) {
1232 bytes = bytes / 1024;
1233 suf = "M";
1234 }
1235 if (bytes > 1024) {
1236 bytes = bytes / 1024;
1237 suf = "G";
1238 }
1239
1240
1241 sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
1242 svg_text(Y, c->start_time, comm);
1243
1244 c->Y = Y;
1245 Y++;
1246 c = c->next;
1247 }
1248 p = p->next;
1249 }
1250}
1251
1252static void draw_process_bars(struct timechart *tchart)
1253{
1254 struct per_pid *p;
1255 struct per_pidcomm *c;
1256 struct cpu_sample *sample;
1257 int Y = 0;
1258
1259 Y = 2 * tchart->numcpus + 2;
1260
1261 p = tchart->all_data;
1262 while (p) {
1263 c = p->all;
1264 while (c) {
1265 if (!c->display) {
1266 c->Y = 0;
1267 c = c->next;
1268 continue;
1269 }
1270
1271 svg_box(Y, c->start_time, c->end_time, "process");
1272 sample = c->samples;
1273 while (sample) {
1274 if (sample->type == TYPE_RUNNING)
1275 svg_running(Y, sample->cpu,
1276 sample->start_time,
1277 sample->end_time,
1278 sample->backtrace);
1279 if (sample->type == TYPE_BLOCKED)
1280 svg_blocked(Y, sample->cpu,
1281 sample->start_time,
1282 sample->end_time,
1283 sample->backtrace);
1284 if (sample->type == TYPE_WAITING)
1285 svg_waiting(Y, sample->cpu,
1286 sample->start_time,
1287 sample->end_time,
1288 sample->backtrace);
1289 sample = sample->next;
1290 }
1291
1292 if (c->comm) {
1293 char comm[256];
1294 if (c->total_time > 5000000000) /* 5 seconds */
1295 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / (double)NSEC_PER_SEC);
1296 else
1297 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC);
1298
1299 svg_text(Y, c->start_time, comm);
1300 }
1301 c->Y = Y;
1302 Y++;
1303 c = c->next;
1304 }
1305 p = p->next;
1306 }
1307}
1308
1309static void add_process_filter(const char *string)
1310{
1311 int pid = strtoull(string, NULL, 10);
1312 struct process_filter *filt = malloc(sizeof(*filt));
1313
1314 if (!filt)
1315 return;
1316
1317 filt->name = strdup(string);
1318 filt->pid = pid;
1319 filt->next = process_filter;
1320
1321 process_filter = filt;
1322}
1323
1324static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
1325{
1326 struct process_filter *filt;
1327 if (!process_filter)
1328 return 1;
1329
1330 filt = process_filter;
1331 while (filt) {
1332 if (filt->pid && p->pid == filt->pid)
1333 return 1;
1334 if (strcmp(filt->name, c->comm) == 0)
1335 return 1;
1336 filt = filt->next;
1337 }
1338 return 0;
1339}
1340
1341static int determine_display_tasks_filtered(struct timechart *tchart)
1342{
1343 struct per_pid *p;
1344 struct per_pidcomm *c;
1345 int count = 0;
1346
1347 p = tchart->all_data;
1348 while (p) {
1349 p->display = 0;
1350 if (p->start_time == 1)
1351 p->start_time = tchart->first_time;
1352
1353 /* no exit marker, task kept running to the end */
1354 if (p->end_time == 0)
1355 p->end_time = tchart->last_time;
1356
1357 c = p->all;
1358
1359 while (c) {
1360 c->display = 0;
1361
1362 if (c->start_time == 1)
1363 c->start_time = tchart->first_time;
1364
1365 if (passes_filter(p, c)) {
1366 c->display = 1;
1367 p->display = 1;
1368 count++;
1369 }
1370
1371 if (c->end_time == 0)
1372 c->end_time = tchart->last_time;
1373
1374 c = c->next;
1375 }
1376 p = p->next;
1377 }
1378 return count;
1379}
1380
1381static int determine_display_tasks(struct timechart *tchart, u64 threshold)
1382{
1383 struct per_pid *p;
1384 struct per_pidcomm *c;
1385 int count = 0;
1386
1387 p = tchart->all_data;
1388 while (p) {
1389 p->display = 0;
1390 if (p->start_time == 1)
1391 p->start_time = tchart->first_time;
1392
1393 /* no exit marker, task kept running to the end */
1394 if (p->end_time == 0)
1395 p->end_time = tchart->last_time;
1396 if (p->total_time >= threshold)
1397 p->display = 1;
1398
1399 c = p->all;
1400
1401 while (c) {
1402 c->display = 0;
1403
1404 if (c->start_time == 1)
1405 c->start_time = tchart->first_time;
1406
1407 if (c->total_time >= threshold) {
1408 c->display = 1;
1409 count++;
1410 }
1411
1412 if (c->end_time == 0)
1413 c->end_time = tchart->last_time;
1414
1415 c = c->next;
1416 }
1417 p = p->next;
1418 }
1419 return count;
1420}
1421
1422static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
1423{
1424 struct per_pid *p;
1425 struct per_pidcomm *c;
1426 int count = 0;
1427
1428 p = timechart->all_data;
1429 while (p) {
1430 /* no exit marker, task kept running to the end */
1431 if (p->end_time == 0)
1432 p->end_time = timechart->last_time;
1433
1434 c = p->all;
1435
1436 while (c) {
1437 c->display = 0;
1438
1439 if (c->total_bytes >= threshold) {
1440 c->display = 1;
1441 count++;
1442 }
1443
1444 if (c->end_time == 0)
1445 c->end_time = timechart->last_time;
1446
1447 c = c->next;
1448 }
1449 p = p->next;
1450 }
1451 return count;
1452}
1453
1454#define BYTES_THRESH (1 * 1024 * 1024)
1455#define TIME_THRESH 10000000
1456
1457static void write_svg_file(struct timechart *tchart, const char *filename)
1458{
1459 u64 i;
1460 int count;
1461 int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
1462
1463 if (tchart->power_only)
1464 tchart->proc_num = 0;
1465
1466 /* We'd like to show at least proc_num tasks;
1467 * be less picky if we have fewer */
1468 do {
1469 if (process_filter)
1470 count = determine_display_tasks_filtered(tchart);
1471 else if (tchart->io_events)
1472 count = determine_display_io_tasks(tchart, thresh);
1473 else
1474 count = determine_display_tasks(tchart, thresh);
1475 thresh /= 10;
1476 } while (!process_filter && thresh && count < tchart->proc_num);
1477
1478 if (!tchart->proc_num)
1479 count = 0;
1480
1481 if (tchart->io_events) {
1482 open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
1483
1484 svg_time_grid(0.5);
1485 svg_io_legenda();
1486
1487 draw_io_bars(tchart);
1488 } else {
1489 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1490
1491 svg_time_grid(0);
1492
1493 svg_legenda();
1494
1495 for (i = 0; i < tchart->numcpus; i++)
1496 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
1497
1498 draw_cpu_usage(tchart);
1499 if (tchart->proc_num)
1500 draw_process_bars(tchart);
1501 if (!tchart->tasks_only)
1502 draw_c_p_states(tchart);
1503 if (tchart->proc_num)
1504 draw_wakeups(tchart);
1505 }
1506
1507 svg_close();
1508}
1509
1510static int process_header(struct perf_file_section *section __maybe_unused,
1511 struct perf_header *ph,
1512 int feat,
1513 int fd __maybe_unused,
1514 void *data)
1515{
1516 struct timechart *tchart = data;
1517
1518 switch (feat) {
1519 case HEADER_NRCPUS:
1520 tchart->numcpus = ph->env.nr_cpus_avail;
1521 break;
1522
1523 case HEADER_CPU_TOPOLOGY:
1524 if (!tchart->topology)
1525 break;
1526
1527 if (svg_build_topology_map(ph->env.sibling_cores,
1528 ph->env.nr_sibling_cores,
1529 ph->env.sibling_threads,
1530 ph->env.nr_sibling_threads))
1531 fprintf(stderr, "problem building topology\n");
1532 break;
1533
1534 default:
1535 break;
1536 }
1537
1538 return 0;
1539}
1540
1541static int __cmd_timechart(struct timechart *tchart, const char *output_name)
1542{
1543 const struct perf_evsel_str_handler power_tracepoints[] = {
1544 { "power:cpu_idle", process_sample_cpu_idle },
1545 { "power:cpu_frequency", process_sample_cpu_frequency },
1546 { "sched:sched_wakeup", process_sample_sched_wakeup },
1547 { "sched:sched_switch", process_sample_sched_switch },
1548#ifdef SUPPORT_OLD_POWER_EVENTS
1549 { "power:power_start", process_sample_power_start },
1550 { "power:power_end", process_sample_power_end },
1551 { "power:power_frequency", process_sample_power_frequency },
1552#endif
1553
1554 { "syscalls:sys_enter_read", process_enter_read },
1555 { "syscalls:sys_enter_pread64", process_enter_read },
1556 { "syscalls:sys_enter_readv", process_enter_read },
1557 { "syscalls:sys_enter_preadv", process_enter_read },
1558 { "syscalls:sys_enter_write", process_enter_write },
1559 { "syscalls:sys_enter_pwrite64", process_enter_write },
1560 { "syscalls:sys_enter_writev", process_enter_write },
1561 { "syscalls:sys_enter_pwritev", process_enter_write },
1562 { "syscalls:sys_enter_sync", process_enter_sync },
1563 { "syscalls:sys_enter_sync_file_range", process_enter_sync },
1564 { "syscalls:sys_enter_fsync", process_enter_sync },
1565 { "syscalls:sys_enter_msync", process_enter_sync },
1566 { "syscalls:sys_enter_recvfrom", process_enter_rx },
1567 { "syscalls:sys_enter_recvmmsg", process_enter_rx },
1568 { "syscalls:sys_enter_recvmsg", process_enter_rx },
1569 { "syscalls:sys_enter_sendto", process_enter_tx },
1570 { "syscalls:sys_enter_sendmsg", process_enter_tx },
1571 { "syscalls:sys_enter_sendmmsg", process_enter_tx },
1572 { "syscalls:sys_enter_epoll_pwait", process_enter_poll },
1573 { "syscalls:sys_enter_epoll_wait", process_enter_poll },
1574 { "syscalls:sys_enter_poll", process_enter_poll },
1575 { "syscalls:sys_enter_ppoll", process_enter_poll },
1576 { "syscalls:sys_enter_pselect6", process_enter_poll },
1577 { "syscalls:sys_enter_select", process_enter_poll },
1578
1579 { "syscalls:sys_exit_read", process_exit_read },
1580 { "syscalls:sys_exit_pread64", process_exit_read },
1581 { "syscalls:sys_exit_readv", process_exit_read },
1582 { "syscalls:sys_exit_preadv", process_exit_read },
1583 { "syscalls:sys_exit_write", process_exit_write },
1584 { "syscalls:sys_exit_pwrite64", process_exit_write },
1585 { "syscalls:sys_exit_writev", process_exit_write },
1586 { "syscalls:sys_exit_pwritev", process_exit_write },
1587 { "syscalls:sys_exit_sync", process_exit_sync },
1588 { "syscalls:sys_exit_sync_file_range", process_exit_sync },
1589 { "syscalls:sys_exit_fsync", process_exit_sync },
1590 { "syscalls:sys_exit_msync", process_exit_sync },
1591 { "syscalls:sys_exit_recvfrom", process_exit_rx },
1592 { "syscalls:sys_exit_recvmmsg", process_exit_rx },
1593 { "syscalls:sys_exit_recvmsg", process_exit_rx },
1594 { "syscalls:sys_exit_sendto", process_exit_tx },
1595 { "syscalls:sys_exit_sendmsg", process_exit_tx },
1596 { "syscalls:sys_exit_sendmmsg", process_exit_tx },
1597 { "syscalls:sys_exit_epoll_pwait", process_exit_poll },
1598 { "syscalls:sys_exit_epoll_wait", process_exit_poll },
1599 { "syscalls:sys_exit_poll", process_exit_poll },
1600 { "syscalls:sys_exit_ppoll", process_exit_poll },
1601 { "syscalls:sys_exit_pselect6", process_exit_poll },
1602 { "syscalls:sys_exit_select", process_exit_poll },
1603 };
1604 struct perf_data data = {
1605 .file = {
1606 .path = input_name,
1607 },
1608 .mode = PERF_DATA_MODE_READ,
1609 .force = tchart->force,
1610 };
1611
1612 struct perf_session *session = perf_session__new(&data, false,
1613 &tchart->tool);
1614 int ret = -EINVAL;
1615
1616 if (session == NULL)
1617 return -1;
1618
1619 symbol__init(&session->header.env);
1620
1621 (void)perf_header__process_sections(&session->header,
1622 perf_data__fd(session->data),
1623 tchart,
1624 process_header);
1625
1626 if (!perf_session__has_traces(session, "timechart record"))
1627 goto out_delete;
1628
1629 if (perf_session__set_tracepoints_handlers(session,
1630 power_tracepoints)) {
1631 pr_err("Initializing session tracepoint handlers failed\n");
1632 goto out_delete;
1633 }
1634
1635 ret = perf_session__process_events(session);
1636 if (ret)
1637 goto out_delete;
1638
1639 end_sample_processing(tchart);
1640
1641 sort_pids(tchart);
1642
1643 write_svg_file(tchart, output_name);
1644
1645 pr_info("Written %2.1f seconds of trace to %s.\n",
1646 (tchart->last_time - tchart->first_time) / (double)NSEC_PER_SEC, output_name);
1647out_delete:
1648 perf_session__delete(session);
1649 return ret;
1650}
1651
1652static int timechart__io_record(int argc, const char **argv)
1653{
1654 unsigned int rec_argc, i;
1655 const char **rec_argv;
1656 const char **p;
1657 char *filter = NULL;
1658
1659 const char * const common_args[] = {
1660 "record", "-a", "-R", "-c", "1",
1661 };
1662 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1663
1664 const char * const disk_events[] = {
1665 "syscalls:sys_enter_read",
1666 "syscalls:sys_enter_pread64",
1667 "syscalls:sys_enter_readv",
1668 "syscalls:sys_enter_preadv",
1669 "syscalls:sys_enter_write",
1670 "syscalls:sys_enter_pwrite64",
1671 "syscalls:sys_enter_writev",
1672 "syscalls:sys_enter_pwritev",
1673 "syscalls:sys_enter_sync",
1674 "syscalls:sys_enter_sync_file_range",
1675 "syscalls:sys_enter_fsync",
1676 "syscalls:sys_enter_msync",
1677
1678 "syscalls:sys_exit_read",
1679 "syscalls:sys_exit_pread64",
1680 "syscalls:sys_exit_readv",
1681 "syscalls:sys_exit_preadv",
1682 "syscalls:sys_exit_write",
1683 "syscalls:sys_exit_pwrite64",
1684 "syscalls:sys_exit_writev",
1685 "syscalls:sys_exit_pwritev",
1686 "syscalls:sys_exit_sync",
1687 "syscalls:sys_exit_sync_file_range",
1688 "syscalls:sys_exit_fsync",
1689 "syscalls:sys_exit_msync",
1690 };
1691 unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
1692
1693 const char * const net_events[] = {
1694 "syscalls:sys_enter_recvfrom",
1695 "syscalls:sys_enter_recvmmsg",
1696 "syscalls:sys_enter_recvmsg",
1697 "syscalls:sys_enter_sendto",
1698 "syscalls:sys_enter_sendmsg",
1699 "syscalls:sys_enter_sendmmsg",
1700
1701 "syscalls:sys_exit_recvfrom",
1702 "syscalls:sys_exit_recvmmsg",
1703 "syscalls:sys_exit_recvmsg",
1704 "syscalls:sys_exit_sendto",
1705 "syscalls:sys_exit_sendmsg",
1706 "syscalls:sys_exit_sendmmsg",
1707 };
1708 unsigned int net_events_nr = ARRAY_SIZE(net_events);
1709
1710 const char * const poll_events[] = {
1711 "syscalls:sys_enter_epoll_pwait",
1712 "syscalls:sys_enter_epoll_wait",
1713 "syscalls:sys_enter_poll",
1714 "syscalls:sys_enter_ppoll",
1715 "syscalls:sys_enter_pselect6",
1716 "syscalls:sys_enter_select",
1717
1718 "syscalls:sys_exit_epoll_pwait",
1719 "syscalls:sys_exit_epoll_wait",
1720 "syscalls:sys_exit_poll",
1721 "syscalls:sys_exit_ppoll",
1722 "syscalls:sys_exit_pselect6",
1723 "syscalls:sys_exit_select",
1724 };
1725 unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
1726
1727 rec_argc = common_args_nr +
1728 disk_events_nr * 4 +
1729 net_events_nr * 4 +
1730 poll_events_nr * 4 +
1731 argc;
1732 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1733
1734 if (rec_argv == NULL)
1735 return -ENOMEM;
1736
1737 if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
1738 free(rec_argv);
1739 return -ENOMEM;
1740 }
1741
1742 p = rec_argv;
1743 for (i = 0; i < common_args_nr; i++)
1744 *p++ = strdup(common_args[i]);
1745
1746 for (i = 0; i < disk_events_nr; i++) {
1747 if (!is_valid_tracepoint(disk_events[i])) {
1748 rec_argc -= 4;
1749 continue;
1750 }
1751
1752 *p++ = "-e";
1753 *p++ = strdup(disk_events[i]);
1754 *p++ = "--filter";
1755 *p++ = filter;
1756 }
1757 for (i = 0; i < net_events_nr; i++) {
1758 if (!is_valid_tracepoint(net_events[i])) {
1759 rec_argc -= 4;
1760 continue;
1761 }
1762
1763 *p++ = "-e";
1764 *p++ = strdup(net_events[i]);
1765 *p++ = "--filter";
1766 *p++ = filter;
1767 }
1768 for (i = 0; i < poll_events_nr; i++) {
1769 if (!is_valid_tracepoint(poll_events[i])) {
1770 rec_argc -= 4;
1771 continue;
1772 }
1773
1774 *p++ = "-e";
1775 *p++ = strdup(poll_events[i]);
1776 *p++ = "--filter";
1777 *p++ = filter;
1778 }
1779
1780 for (i = 0; i < (unsigned int)argc; i++)
1781 *p++ = argv[i];
1782
1783 return cmd_record(rec_argc, rec_argv);
1784}
1785
1786
1787static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1788{
1789 unsigned int rec_argc, i, j;
1790 const char **rec_argv;
1791 const char **p;
1792 unsigned int record_elems;
1793
1794 const char * const common_args[] = {
1795 "record", "-a", "-R", "-c", "1",
1796 };
1797 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1798
1799 const char * const backtrace_args[] = {
1800 "-g",
1801 };
1802 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1803
1804 const char * const power_args[] = {
1805 "-e", "power:cpu_frequency",
1806 "-e", "power:cpu_idle",
1807 };
1808 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1809
1810 const char * const old_power_args[] = {
1811#ifdef SUPPORT_OLD_POWER_EVENTS
1812 "-e", "power:power_start",
1813 "-e", "power:power_end",
1814 "-e", "power:power_frequency",
1815#endif
1816 };
1817 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1818
1819 const char * const tasks_args[] = {
1820 "-e", "sched:sched_wakeup",
1821 "-e", "sched:sched_switch",
1822 };
1823 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1824
1825#ifdef SUPPORT_OLD_POWER_EVENTS
1826 if (!is_valid_tracepoint("power:cpu_idle") &&
1827 is_valid_tracepoint("power:power_start")) {
1828 use_old_power_events = 1;
1829 power_args_nr = 0;
1830 } else {
1831 old_power_args_nr = 0;
1832 }
1833#endif
1834
1835 if (tchart->power_only)
1836 tasks_args_nr = 0;
1837
1838 if (tchart->tasks_only) {
1839 power_args_nr = 0;
1840 old_power_args_nr = 0;
1841 }
1842
1843 if (!tchart->with_backtrace)
1844 backtrace_args_no = 0;
1845
1846 record_elems = common_args_nr + tasks_args_nr +
1847 power_args_nr + old_power_args_nr + backtrace_args_no;
1848
1849 rec_argc = record_elems + argc;
1850 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1851
1852 if (rec_argv == NULL)
1853 return -ENOMEM;
1854
1855 p = rec_argv;
1856 for (i = 0; i < common_args_nr; i++)
1857 *p++ = strdup(common_args[i]);
1858
1859 for (i = 0; i < backtrace_args_no; i++)
1860 *p++ = strdup(backtrace_args[i]);
1861
1862 for (i = 0; i < tasks_args_nr; i++)
1863 *p++ = strdup(tasks_args[i]);
1864
1865 for (i = 0; i < power_args_nr; i++)
1866 *p++ = strdup(power_args[i]);
1867
1868 for (i = 0; i < old_power_args_nr; i++)
1869 *p++ = strdup(old_power_args[i]);
1870
1871 for (j = 0; j < (unsigned int)argc; j++)
1872 *p++ = argv[j];
1873
1874 return cmd_record(rec_argc, rec_argv);
1875}
1876
1877static int
1878parse_process(const struct option *opt __maybe_unused, const char *arg,
1879 int __maybe_unused unset)
1880{
1881 if (arg)
1882 add_process_filter(arg);
1883 return 0;
1884}
1885
1886static int
1887parse_highlight(const struct option *opt __maybe_unused, const char *arg,
1888 int __maybe_unused unset)
1889{
1890 unsigned long duration = strtoul(arg, NULL, 0);
1891
1892 if (svg_highlight || svg_highlight_name)
1893 return -1;
1894
1895 if (duration)
1896 svg_highlight = duration;
1897 else
1898 svg_highlight_name = strdup(arg);
1899
1900 return 0;
1901}
1902
1903static int
1904parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
1905{
1906 char unit = 'n';
1907 u64 *value = opt->value;
1908
1909 if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
1910 switch (unit) {
1911 case 'm':
1912 *value *= NSEC_PER_MSEC;
1913 break;
1914 case 'u':
1915 *value *= NSEC_PER_USEC;
1916 break;
1917 case 'n':
1918 break;
1919 default:
1920 return -1;
1921 }
1922 }
1923
1924 return 0;
1925}
1926
1927int cmd_timechart(int argc, const char **argv)
1928{
1929 struct timechart tchart = {
1930 .tool = {
1931 .comm = process_comm_event,
1932 .fork = process_fork_event,
1933 .exit = process_exit_event,
1934 .sample = process_sample_event,
1935 .ordered_events = true,
1936 },
1937 .proc_num = 15,
1938 .min_time = NSEC_PER_MSEC,
1939 .merge_dist = 1000,
1940 };
1941 const char *output_name = "output.svg";
1942 const struct option timechart_common_options[] = {
1943 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1944 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only, "output processes data only"),
1945 OPT_END()
1946 };
1947 const struct option timechart_options[] = {
1948 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1949 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1950 OPT_INTEGER('w', "width", &svg_page_width, "page width"),
1951 OPT_CALLBACK(0, "highlight", NULL, "duration or task name",
1952 "highlight tasks. Pass duration in ns or process name.",
1953 parse_highlight),
1954 OPT_CALLBACK('p', "process", NULL, "process",
1955 "process selector. Pass a pid or process name.",
1956 parse_process),
1957 OPT_CALLBACK(0, "symfs", NULL, "directory",
1958 "Look for files with symbols relative to this directory",
1959 symbol__config_symfs),
1960 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1961 "min. number of tasks to print"),
1962 OPT_BOOLEAN('t', "topology", &tchart.topology,
1963 "sort CPUs according to topology"),
1964 OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
1965 "skip EAGAIN errors"),
1966 OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
1967 "all IO faster than min-time will visually appear longer",
1968 parse_time),
1969 OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
1970 "merge events that are merge-dist us apart",
1971 parse_time),
1972 OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
1973 OPT_PARENT(timechart_common_options),
1974 };
1975 const char * const timechart_subcommands[] = { "record", NULL };
1976 const char *timechart_usage[] = {
1977 "perf timechart [<options>] {record}",
1978 NULL
1979 };
1980 const struct option timechart_record_options[] = {
1981 OPT_BOOLEAN('I', "io-only", &tchart.io_only,
1982 "record only IO data"),
1983 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1984 OPT_PARENT(timechart_common_options),
1985 };
1986 const char * const timechart_record_usage[] = {
1987 "perf timechart record [<options>]",
1988 NULL
1989 };
1990 argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
1991 timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
1992
1993 if (tchart.power_only && tchart.tasks_only) {
1994 pr_err("-P and -T options cannot be used at the same time.\n");
1995 return -1;
1996 }
1997
1998 if (argc && !strncmp(argv[0], "rec", 3)) {
1999 argc = parse_options(argc, argv, timechart_record_options,
2000 timechart_record_usage,
2001 PARSE_OPT_STOP_AT_NON_OPTION);
2002
2003 if (tchart.power_only && tchart.tasks_only) {
2004 pr_err("-P and -T options cannot be used at the same time.\n");
2005 return -1;
2006 }
2007
2008 if (tchart.io_only)
2009 return timechart__io_record(argc, argv);
2010 else
2011 return timechart__record(&tchart, argc, argv);
2012 } else if (argc)
2013 usage_with_options(timechart_usage, timechart_options);
2014
2015 setup_pager();
2016
2017 return __cmd_timechart(&tchart, output_name);
2018}