2 * builtin-timechart.c - make an svg timechart of system activity
4 * (C) Copyright 2009 Intel Corporation
7 * Arjan van de Ven <arjan@linux.intel.com>
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
17 #include <traceevent/event-parse.h>
21 #include "util/util.h"
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"
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"
46 #define SUPPORT_OLD_POWER_EVENTS 1
47 #define PWR_EVENT_EXIT -1
54 struct perf_tool tool;
55 struct per_pid *all_data;
56 struct power_event *power_events;
57 struct wake_event *wake_events;
60 u64 min_freq, /* Lowest CPU frequency seen */
61 max_freq, /* Highest CPU frequency seen */
63 first_time, last_time;
69 /* IO related settings */
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
103 struct per_pidcomm *all;
104 struct per_pidcomm *current;
109 struct per_pidcomm *next;
125 struct cpu_sample *samples;
126 struct io_sample *io_samples;
129 struct sample_wrapper {
130 struct sample_wrapper *next;
133 unsigned char data[0];
137 #define TYPE_RUNNING 1
138 #define TYPE_WAITING 2
139 #define TYPE_BLOCKED 3
142 struct cpu_sample *next;
148 const char *backtrace;
161 struct io_sample *next;
176 struct power_event *next;
185 struct wake_event *next;
189 const char *backtrace;
192 struct process_filter {
195 struct process_filter *next;
198 static struct process_filter *process_filter;
201 static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
203 struct per_pid *cursor = tchart->all_data;
206 if (cursor->pid == pid)
208 cursor = cursor->next;
210 cursor = zalloc(sizeof(*cursor));
211 assert(cursor != NULL);
213 cursor->next = tchart->all_data;
214 tchart->all_data = cursor;
218 static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
221 struct per_pidcomm *c;
222 p = find_create_pid(tchart, pid);
225 if (c->comm && strcmp(c->comm, comm) == 0) {
230 c->comm = strdup(comm);
236 c = zalloc(sizeof(*c));
238 c->comm = strdup(comm);
244 static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
246 struct per_pid *p, *pp;
247 p = find_create_pid(tchart, pid);
248 pp = find_create_pid(tchart, ppid);
250 if (pp->current && pp->current->comm && !p->current)
251 pid_set_comm(tchart, pid, pp->current->comm);
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;
260 static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
263 p = find_create_pid(tchart, pid);
264 p->end_time = timestamp;
266 p->current->end_time = timestamp;
269 static void pid_put_sample(struct timechart *tchart, int pid, int type,
270 unsigned int cpu, u64 start, u64 end,
271 const char *backtrace)
274 struct per_pidcomm *c;
275 struct cpu_sample *sample;
277 p = find_create_pid(tchart, pid);
280 c = zalloc(sizeof(*c));
287 sample = zalloc(sizeof(*sample));
288 assert(sample != NULL);
289 sample->start_time = start;
290 sample->end_time = end;
292 sample->next = c->samples;
294 sample->backtrace = backtrace;
297 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
298 c->total_time += (end-start);
299 p->total_time += (end-start);
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;
308 #define MAX_CPUS 4096
310 static u64 cpus_cstate_start_times[MAX_CPUS];
311 static int cpus_cstate_state[MAX_CPUS];
312 static u64 cpus_pstate_start_times[MAX_CPUS];
313 static u64 cpus_pstate_state[MAX_CPUS];
315 static 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)
320 struct timechart *tchart = container_of(tool, struct timechart, tool);
321 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
325 static 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)
330 struct timechart *tchart = container_of(tool, struct timechart, tool);
331 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
335 static 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)
340 struct timechart *tchart = container_of(tool, struct timechart, tool);
341 pid_exit(tchart, event->fork.pid, event->fork.time);
345 #ifdef SUPPORT_OLD_POWER_EVENTS
346 static int use_old_power_events;
349 static void c_state_start(int cpu, u64 timestamp, int state)
351 cpus_cstate_start_times[cpu] = timestamp;
352 cpus_cstate_state[cpu] = state;
355 static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
357 struct power_event *pwr = zalloc(sizeof(*pwr));
362 pwr->state = cpus_cstate_state[cpu];
363 pwr->start_time = cpus_cstate_start_times[cpu];
364 pwr->end_time = timestamp;
367 pwr->next = tchart->power_events;
369 tchart->power_events = pwr;
372 static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
374 struct power_event *pwr;
376 if (new_freq > 8000000) /* detect invalid data */
379 pwr = zalloc(sizeof(*pwr));
383 pwr->state = cpus_pstate_state[cpu];
384 pwr->start_time = cpus_pstate_start_times[cpu];
385 pwr->end_time = timestamp;
388 pwr->next = tchart->power_events;
390 if (!pwr->start_time)
391 pwr->start_time = tchart->first_time;
393 tchart->power_events = pwr;
395 cpus_pstate_state[cpu] = new_freq;
396 cpus_pstate_start_times[cpu] = timestamp;
398 if ((u64)new_freq > tchart->max_freq)
399 tchart->max_freq = new_freq;
401 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
402 tchart->min_freq = new_freq;
404 if (new_freq == tchart->max_freq - 1000)
405 tchart->turbo_frequency = tchart->max_freq;
408 static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
409 int waker, int wakee, u8 flags, const char *backtrace)
412 struct wake_event *we = zalloc(sizeof(*we));
417 we->time = timestamp;
419 we->backtrace = backtrace;
421 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
425 we->next = tchart->wake_events;
426 tchart->wake_events = we;
427 p = find_create_pid(tchart, we->wakee);
429 if (p && p->current && p->current->state == TYPE_NONE) {
430 p->current->state_since = timestamp;
431 p->current->state = TYPE_WAITING;
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;
441 static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
442 int prev_pid, int next_pid, u64 prev_state,
443 const char *backtrace)
445 struct per_pid *p = NULL, *prev_p;
447 prev_p = find_create_pid(tchart, prev_pid);
449 p = find_create_pid(tchart, next_pid);
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,
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,
461 p->current->state_since = timestamp;
462 p->current->state = TYPE_RUNNING;
465 if (prev_p->current) {
466 prev_p->current->state = TYPE_NONE;
467 prev_p->current->state_since = timestamp;
469 prev_p->current->state = TYPE_BLOCKED;
471 prev_p->current->state = TYPE_WAITING;
475 static const char *cat_backtrace(union perf_event *event,
476 struct perf_sample *sample,
477 struct machine *machine)
479 struct addr_location al;
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);
489 perror("open_memstream error");
496 if (machine__resolve(machine, &al, sample) < 0) {
497 fprintf(stderr, "problem processing %d event, skipping it.\n",
502 for (i = 0; i < chain->nr; i++) {
505 if (callchain_param.order == ORDER_CALLEE)
508 ip = chain->ips[chain->nr - i - 1];
510 if (ip >= PERF_CONTEXT_MAX) {
512 case PERF_CONTEXT_HV:
513 cpumode = PERF_RECORD_MISC_HYPERVISOR;
515 case PERF_CONTEXT_KERNEL:
516 cpumode = PERF_RECORD_MISC_KERNEL;
518 case PERF_CONTEXT_USER:
519 cpumode = PERF_RECORD_MISC_USER;
522 pr_debug("invalid callchain context: "
523 "%"PRId64"\n", (s64) ip);
526 * It seems the callchain is corrupted.
536 if (thread__find_symbol(al.thread, cpumode, ip, &tal))
537 fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name);
539 fprintf(f, "..... %016" PRIx64 "\n", ip);
542 addr_location__put(&al);
549 typedef int (*tracepoint_handler)(struct timechart *tchart,
550 struct perf_evsel *evsel,
551 struct perf_sample *sample,
552 const char *backtrace);
554 static 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)
560 struct timechart *tchart = container_of(tool, struct timechart, tool);
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;
569 if (evsel->handler != NULL) {
570 tracepoint_handler f = evsel->handler;
571 return f(tchart, evsel, sample,
572 cat_backtrace(event, sample, machine));
579 process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
580 struct perf_evsel *evsel,
581 struct perf_sample *sample,
582 const char *backtrace __maybe_unused)
584 u32 state = perf_evsel__intval(evsel, sample, "state");
585 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
587 if (state == (u32)PWR_EVENT_EXIT)
588 c_state_end(tchart, cpu_id, sample->time);
590 c_state_start(cpu_id, sample->time, state);
595 process_sample_cpu_frequency(struct timechart *tchart,
596 struct perf_evsel *evsel,
597 struct perf_sample *sample,
598 const char *backtrace __maybe_unused)
600 u32 state = perf_evsel__intval(evsel, sample, "state");
601 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
603 p_state_change(tchart, cpu_id, sample->time, state);
608 process_sample_sched_wakeup(struct timechart *tchart,
609 struct perf_evsel *evsel,
610 struct perf_sample *sample,
611 const char *backtrace)
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");
617 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
622 process_sample_sched_switch(struct timechart *tchart,
623 struct perf_evsel *evsel,
624 struct perf_sample *sample,
625 const char *backtrace)
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");
631 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
632 prev_state, backtrace);
636 #ifdef SUPPORT_OLD_POWER_EVENTS
638 process_sample_power_start(struct timechart *tchart __maybe_unused,
639 struct perf_evsel *evsel,
640 struct perf_sample *sample,
641 const char *backtrace __maybe_unused)
643 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
644 u64 value = perf_evsel__intval(evsel, sample, "value");
646 c_state_start(cpu_id, sample->time, value);
651 process_sample_power_end(struct timechart *tchart,
652 struct perf_evsel *evsel __maybe_unused,
653 struct perf_sample *sample,
654 const char *backtrace __maybe_unused)
656 c_state_end(tchart, sample->cpu, sample->time);
661 process_sample_power_frequency(struct timechart *tchart,
662 struct perf_evsel *evsel,
663 struct perf_sample *sample,
664 const char *backtrace __maybe_unused)
666 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
667 u64 value = perf_evsel__intval(evsel, sample, "value");
669 p_state_change(tchart, cpu_id, sample->time, value);
672 #endif /* SUPPORT_OLD_POWER_EVENTS */
675 * After the last sample we need to wrap up the current C/P state
676 * and close out each CPU for these.
678 static void end_sample_processing(struct timechart *tchart)
681 struct power_event *pwr;
683 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
686 pwr = zalloc(sizeof(*pwr));
690 pwr->state = cpus_cstate_state[cpu];
691 pwr->start_time = cpus_cstate_start_times[cpu];
692 pwr->end_time = tchart->last_time;
695 pwr->next = tchart->power_events;
697 tchart->power_events = pwr;
701 pwr = zalloc(sizeof(*pwr));
705 pwr->state = cpus_pstate_state[cpu];
706 pwr->start_time = cpus_pstate_start_times[cpu];
707 pwr->end_time = tchart->last_time;
710 pwr->next = tchart->power_events;
712 if (!pwr->start_time)
713 pwr->start_time = tchart->first_time;
715 pwr->state = tchart->min_freq;
716 tchart->power_events = pwr;
720 static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
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;
729 c = zalloc(sizeof(*c));
737 prev = c->io_samples;
739 if (prev && prev->start_time && !prev->end_time) {
740 pr_warning("Skip invalid start event: "
741 "previous event already started!\n");
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;
750 sample = zalloc(sizeof(*sample));
753 sample->start_time = start;
756 sample->next = c->io_samples;
757 c->io_samples = sample;
759 if (c->start_time == 0 || c->start_time > start)
760 c->start_time = start;
765 static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
768 struct per_pid *p = find_create_pid(tchart, pid);
769 struct per_pidcomm *c = p->current;
770 struct io_sample *sample, *prev;
773 pr_warning("Invalid pidcomm!\n");
777 sample = c->io_samples;
779 if (!sample) /* skip partially captured events */
782 if (sample->end_time) {
783 pr_warning("Skip invalid end event: "
784 "previous event already ended!\n");
788 if (sample->type != type) {
789 pr_warning("Skip invalid end event: invalid event type!\n");
793 sample->end_time = end;
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;
804 prev->end_time = sample->start_time;
809 } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
810 type == IOTYPE_TX || type == IOTYPE_RX) {
812 if ((u64)ret > c->max_bytes)
815 c->total_bytes += ret;
816 p->total_bytes += ret;
820 /* merge two requests to make svg smaller and render-friendly */
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) {
827 sample->bytes += prev->bytes;
828 sample->merges += prev->merges + 1;
830 sample->start_time = prev->start_time;
831 sample->next = prev->next;
834 if (!sample->err && sample->bytes > c->max_bytes)
835 c->max_bytes = sample->bytes;
844 process_enter_read(struct timechart *tchart,
845 struct perf_evsel *evsel,
846 struct perf_sample *sample)
848 long fd = perf_evsel__intval(evsel, sample, "fd");
849 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
854 process_exit_read(struct timechart *tchart,
855 struct perf_evsel *evsel,
856 struct perf_sample *sample)
858 long ret = perf_evsel__intval(evsel, sample, "ret");
859 return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
864 process_enter_write(struct timechart *tchart,
865 struct perf_evsel *evsel,
866 struct perf_sample *sample)
868 long fd = perf_evsel__intval(evsel, sample, "fd");
869 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
874 process_exit_write(struct timechart *tchart,
875 struct perf_evsel *evsel,
876 struct perf_sample *sample)
878 long ret = perf_evsel__intval(evsel, sample, "ret");
879 return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
884 process_enter_sync(struct timechart *tchart,
885 struct perf_evsel *evsel,
886 struct perf_sample *sample)
888 long fd = perf_evsel__intval(evsel, sample, "fd");
889 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
894 process_exit_sync(struct timechart *tchart,
895 struct perf_evsel *evsel,
896 struct perf_sample *sample)
898 long ret = perf_evsel__intval(evsel, sample, "ret");
899 return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
904 process_enter_tx(struct timechart *tchart,
905 struct perf_evsel *evsel,
906 struct perf_sample *sample)
908 long fd = perf_evsel__intval(evsel, sample, "fd");
909 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
914 process_exit_tx(struct timechart *tchart,
915 struct perf_evsel *evsel,
916 struct perf_sample *sample)
918 long ret = perf_evsel__intval(evsel, sample, "ret");
919 return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
924 process_enter_rx(struct timechart *tchart,
925 struct perf_evsel *evsel,
926 struct perf_sample *sample)
928 long fd = perf_evsel__intval(evsel, sample, "fd");
929 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
934 process_exit_rx(struct timechart *tchart,
935 struct perf_evsel *evsel,
936 struct perf_sample *sample)
938 long ret = perf_evsel__intval(evsel, sample, "ret");
939 return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
944 process_enter_poll(struct timechart *tchart,
945 struct perf_evsel *evsel,
946 struct perf_sample *sample)
948 long fd = perf_evsel__intval(evsel, sample, "fd");
949 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
954 process_exit_poll(struct timechart *tchart,
955 struct perf_evsel *evsel,
956 struct perf_sample *sample)
958 long ret = perf_evsel__intval(evsel, sample, "ret");
959 return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
964 * Sort the pid datastructure
966 static void sort_pids(struct timechart *tchart)
968 struct per_pid *new_list, *p, *cursor, *prev;
969 /* sort by ppid first, then by pid, lowest to highest */
973 while (tchart->all_data) {
974 p = tchart->all_data;
975 tchart->all_data = p->next;
978 if (new_list == NULL) {
986 if (cursor->ppid > p->ppid ||
987 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
988 /* must insert before */
990 p->next = prev->next;
1003 cursor = cursor->next;
1008 tchart->all_data = new_list;
1012 static void draw_c_p_states(struct timechart *tchart)
1014 struct power_event *pwr;
1015 pwr = tchart->power_events;
1018 * two pass drawing so that the P state bars are on top of the C state blocks
1021 if (pwr->type == CSTATE)
1022 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1026 pwr = tchart->power_events;
1028 if (pwr->type == PSTATE) {
1030 pwr->state = tchart->min_freq;
1031 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1037 static void draw_wakeups(struct timechart *tchart)
1039 struct wake_event *we;
1041 struct per_pidcomm *c;
1043 we = tchart->wake_events;
1045 int from = 0, to = 0;
1046 char *task_from = NULL, *task_to = NULL;
1048 /* locate the column of the waker and wakee */
1049 p = tchart->all_data;
1051 if (p->pid == we->waker || p->pid == we->wakee) {
1054 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
1055 if (p->pid == we->waker && !from) {
1057 task_from = strdup(c->comm);
1059 if (p->pid == we->wakee && !to) {
1061 task_to = strdup(c->comm);
1068 if (p->pid == we->waker && !from) {
1070 task_from = strdup(c->comm);
1072 if (p->pid == we->wakee && !to) {
1074 task_to = strdup(c->comm);
1083 task_from = malloc(40);
1084 sprintf(task_from, "[%i]", we->waker);
1087 task_to = malloc(40);
1088 sprintf(task_to, "[%i]", we->wakee);
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);
1096 svg_partial_wakeline(we->time, from, task_from, to,
1097 task_to, we->backtrace);
1105 static void draw_cpu_usage(struct timechart *tchart)
1108 struct per_pidcomm *c;
1109 struct cpu_sample *sample;
1110 p = tchart->all_data;
1114 sample = c->samples;
1116 if (sample->type == TYPE_RUNNING) {
1117 svg_process(sample->cpu,
1125 sample = sample->next;
1133 static void draw_io_bars(struct timechart *tchart)
1139 struct per_pidcomm *c;
1140 struct io_sample *sample;
1143 p = tchart->all_data;
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;
1158 if (tchart->skip_eagain &&
1159 sample->err == -EAGAIN)
1165 if (sample->type == IOTYPE_SYNC)
1170 sample->err ? "error" : "sync",
1174 else if (sample->type == IOTYPE_POLL)
1179 sample->err ? "error" : "poll",
1183 else if (sample->type == IOTYPE_READ)
1188 sample->err ? "error" : "disk",
1192 else if (sample->type == IOTYPE_WRITE)
1197 sample->err ? "error" : "disk",
1201 else if (sample->type == IOTYPE_RX)
1206 sample->err ? "error" : "net",
1210 else if (sample->type == IOTYPE_TX)
1215 sample->err ? "error" : "net",
1222 bytes = c->total_bytes;
1224 bytes = bytes / 1024;
1228 bytes = bytes / 1024;
1232 bytes = bytes / 1024;
1237 sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
1238 svg_text(Y, c->start_time, comm);
1248 static void draw_process_bars(struct timechart *tchart)
1251 struct per_pidcomm *c;
1252 struct cpu_sample *sample;
1255 Y = 2 * tchart->numcpus + 2;
1257 p = tchart->all_data;
1267 svg_box(Y, c->start_time, c->end_time, "process");
1268 sample = c->samples;
1270 if (sample->type == TYPE_RUNNING)
1271 svg_running(Y, sample->cpu,
1275 if (sample->type == TYPE_BLOCKED)
1276 svg_blocked(Y, sample->cpu,
1280 if (sample->type == TYPE_WAITING)
1281 svg_waiting(Y, sample->cpu,
1285 sample = sample->next;
1290 if (c->total_time > 5000000000) /* 5 seconds */
1291 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / (double)NSEC_PER_SEC);
1293 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC);
1295 svg_text(Y, c->start_time, comm);
1305 static void add_process_filter(const char *string)
1307 int pid = strtoull(string, NULL, 10);
1308 struct process_filter *filt = malloc(sizeof(*filt));
1313 filt->name = strdup(string);
1315 filt->next = process_filter;
1317 process_filter = filt;
1320 static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
1322 struct process_filter *filt;
1323 if (!process_filter)
1326 filt = process_filter;
1328 if (filt->pid && p->pid == filt->pid)
1330 if (strcmp(filt->name, c->comm) == 0)
1337 static int determine_display_tasks_filtered(struct timechart *tchart)
1340 struct per_pidcomm *c;
1343 p = tchart->all_data;
1346 if (p->start_time == 1)
1347 p->start_time = tchart->first_time;
1349 /* no exit marker, task kept running to the end */
1350 if (p->end_time == 0)
1351 p->end_time = tchart->last_time;
1358 if (c->start_time == 1)
1359 c->start_time = tchart->first_time;
1361 if (passes_filter(p, c)) {
1367 if (c->end_time == 0)
1368 c->end_time = tchart->last_time;
1377 static int determine_display_tasks(struct timechart *tchart, u64 threshold)
1380 struct per_pidcomm *c;
1383 p = tchart->all_data;
1386 if (p->start_time == 1)
1387 p->start_time = tchart->first_time;
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)
1400 if (c->start_time == 1)
1401 c->start_time = tchart->first_time;
1403 if (c->total_time >= threshold) {
1408 if (c->end_time == 0)
1409 c->end_time = tchart->last_time;
1418 static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
1421 struct per_pidcomm *c;
1424 p = timechart->all_data;
1426 /* no exit marker, task kept running to the end */
1427 if (p->end_time == 0)
1428 p->end_time = timechart->last_time;
1435 if (c->total_bytes >= threshold) {
1440 if (c->end_time == 0)
1441 c->end_time = timechart->last_time;
1450 #define BYTES_THRESH (1 * 1024 * 1024)
1451 #define TIME_THRESH 10000000
1453 static void write_svg_file(struct timechart *tchart, const char *filename)
1457 int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
1459 if (tchart->power_only)
1460 tchart->proc_num = 0;
1462 /* We'd like to show at least proc_num tasks;
1463 * be less picky if we have fewer */
1466 count = determine_display_tasks_filtered(tchart);
1467 else if (tchart->io_events)
1468 count = determine_display_io_tasks(tchart, thresh);
1470 count = determine_display_tasks(tchart, thresh);
1472 } while (!process_filter && thresh && count < tchart->proc_num);
1474 if (!tchart->proc_num)
1477 if (tchart->io_events) {
1478 open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
1483 draw_io_bars(tchart);
1485 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1491 for (i = 0; i < tchart->numcpus; i++)
1492 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
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);
1506 static int process_header(struct perf_file_section *section __maybe_unused,
1507 struct perf_header *ph,
1509 int fd __maybe_unused,
1512 struct timechart *tchart = data;
1516 tchart->numcpus = ph->env.nr_cpus_avail;
1519 case HEADER_CPU_TOPOLOGY:
1520 if (!tchart->topology)
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");
1537 static int __cmd_timechart(struct timechart *tchart, const char *output_name)
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 },
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 },
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 },
1600 struct perf_data data = {
1604 .mode = PERF_DATA_MODE_READ,
1605 .force = tchart->force,
1608 struct perf_session *session = perf_session__new(&data, false,
1612 if (session == NULL)
1615 symbol__init(&session->header.env);
1617 (void)perf_header__process_sections(&session->header,
1618 perf_data__fd(session->data),
1622 if (!perf_session__has_traces(session, "timechart record"))
1625 if (perf_session__set_tracepoints_handlers(session,
1626 power_tracepoints)) {
1627 pr_err("Initializing session tracepoint handlers failed\n");
1631 ret = perf_session__process_events(session);
1635 end_sample_processing(tchart);
1639 write_svg_file(tchart, output_name);
1641 pr_info("Written %2.1f seconds of trace to %s.\n",
1642 (tchart->last_time - tchart->first_time) / (double)NSEC_PER_SEC, output_name);
1644 perf_session__delete(session);
1648 static int timechart__io_record(int argc, const char **argv)
1650 unsigned int rec_argc, i;
1651 const char **rec_argv;
1653 char *filter = NULL;
1655 const char * const common_args[] = {
1656 "record", "-a", "-R", "-c", "1",
1658 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1660 const char * const disk_events[] = {
1661 "syscalls:sys_enter_read",
1662 "syscalls:sys_enter_pread64",
1663 "syscalls:sys_enter_readv",
1664 "syscalls:sys_enter_preadv",
1665 "syscalls:sys_enter_write",
1666 "syscalls:sys_enter_pwrite64",
1667 "syscalls:sys_enter_writev",
1668 "syscalls:sys_enter_pwritev",
1669 "syscalls:sys_enter_sync",
1670 "syscalls:sys_enter_sync_file_range",
1671 "syscalls:sys_enter_fsync",
1672 "syscalls:sys_enter_msync",
1674 "syscalls:sys_exit_read",
1675 "syscalls:sys_exit_pread64",
1676 "syscalls:sys_exit_readv",
1677 "syscalls:sys_exit_preadv",
1678 "syscalls:sys_exit_write",
1679 "syscalls:sys_exit_pwrite64",
1680 "syscalls:sys_exit_writev",
1681 "syscalls:sys_exit_pwritev",
1682 "syscalls:sys_exit_sync",
1683 "syscalls:sys_exit_sync_file_range",
1684 "syscalls:sys_exit_fsync",
1685 "syscalls:sys_exit_msync",
1687 unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
1689 const char * const net_events[] = {
1690 "syscalls:sys_enter_recvfrom",
1691 "syscalls:sys_enter_recvmmsg",
1692 "syscalls:sys_enter_recvmsg",
1693 "syscalls:sys_enter_sendto",
1694 "syscalls:sys_enter_sendmsg",
1695 "syscalls:sys_enter_sendmmsg",
1697 "syscalls:sys_exit_recvfrom",
1698 "syscalls:sys_exit_recvmmsg",
1699 "syscalls:sys_exit_recvmsg",
1700 "syscalls:sys_exit_sendto",
1701 "syscalls:sys_exit_sendmsg",
1702 "syscalls:sys_exit_sendmmsg",
1704 unsigned int net_events_nr = ARRAY_SIZE(net_events);
1706 const char * const poll_events[] = {
1707 "syscalls:sys_enter_epoll_pwait",
1708 "syscalls:sys_enter_epoll_wait",
1709 "syscalls:sys_enter_poll",
1710 "syscalls:sys_enter_ppoll",
1711 "syscalls:sys_enter_pselect6",
1712 "syscalls:sys_enter_select",
1714 "syscalls:sys_exit_epoll_pwait",
1715 "syscalls:sys_exit_epoll_wait",
1716 "syscalls:sys_exit_poll",
1717 "syscalls:sys_exit_ppoll",
1718 "syscalls:sys_exit_pselect6",
1719 "syscalls:sys_exit_select",
1721 unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
1723 rec_argc = common_args_nr +
1724 disk_events_nr * 4 +
1726 poll_events_nr * 4 +
1728 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1730 if (rec_argv == NULL)
1733 if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
1739 for (i = 0; i < common_args_nr; i++)
1740 *p++ = strdup(common_args[i]);
1742 for (i = 0; i < disk_events_nr; i++) {
1743 if (!is_valid_tracepoint(disk_events[i])) {
1749 *p++ = strdup(disk_events[i]);
1753 for (i = 0; i < net_events_nr; i++) {
1754 if (!is_valid_tracepoint(net_events[i])) {
1760 *p++ = strdup(net_events[i]);
1764 for (i = 0; i < poll_events_nr; i++) {
1765 if (!is_valid_tracepoint(poll_events[i])) {
1771 *p++ = strdup(poll_events[i]);
1776 for (i = 0; i < (unsigned int)argc; i++)
1779 return cmd_record(rec_argc, rec_argv);
1783 static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1785 unsigned int rec_argc, i, j;
1786 const char **rec_argv;
1788 unsigned int record_elems;
1790 const char * const common_args[] = {
1791 "record", "-a", "-R", "-c", "1",
1793 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1795 const char * const backtrace_args[] = {
1798 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1800 const char * const power_args[] = {
1801 "-e", "power:cpu_frequency",
1802 "-e", "power:cpu_idle",
1804 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1806 const char * const old_power_args[] = {
1807 #ifdef SUPPORT_OLD_POWER_EVENTS
1808 "-e", "power:power_start",
1809 "-e", "power:power_end",
1810 "-e", "power:power_frequency",
1813 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1815 const char * const tasks_args[] = {
1816 "-e", "sched:sched_wakeup",
1817 "-e", "sched:sched_switch",
1819 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1821 #ifdef SUPPORT_OLD_POWER_EVENTS
1822 if (!is_valid_tracepoint("power:cpu_idle") &&
1823 is_valid_tracepoint("power:power_start")) {
1824 use_old_power_events = 1;
1827 old_power_args_nr = 0;
1831 if (tchart->power_only)
1834 if (tchart->tasks_only) {
1836 old_power_args_nr = 0;
1839 if (!tchart->with_backtrace)
1840 backtrace_args_no = 0;
1842 record_elems = common_args_nr + tasks_args_nr +
1843 power_args_nr + old_power_args_nr + backtrace_args_no;
1845 rec_argc = record_elems + argc;
1846 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1848 if (rec_argv == NULL)
1852 for (i = 0; i < common_args_nr; i++)
1853 *p++ = strdup(common_args[i]);
1855 for (i = 0; i < backtrace_args_no; i++)
1856 *p++ = strdup(backtrace_args[i]);
1858 for (i = 0; i < tasks_args_nr; i++)
1859 *p++ = strdup(tasks_args[i]);
1861 for (i = 0; i < power_args_nr; i++)
1862 *p++ = strdup(power_args[i]);
1864 for (i = 0; i < old_power_args_nr; i++)
1865 *p++ = strdup(old_power_args[i]);
1867 for (j = 0; j < (unsigned int)argc; j++)
1870 return cmd_record(rec_argc, rec_argv);
1874 parse_process(const struct option *opt __maybe_unused, const char *arg,
1875 int __maybe_unused unset)
1878 add_process_filter(arg);
1883 parse_highlight(const struct option *opt __maybe_unused, const char *arg,
1884 int __maybe_unused unset)
1886 unsigned long duration = strtoul(arg, NULL, 0);
1888 if (svg_highlight || svg_highlight_name)
1892 svg_highlight = duration;
1894 svg_highlight_name = strdup(arg);
1900 parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
1903 u64 *value = opt->value;
1905 if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
1908 *value *= NSEC_PER_MSEC;
1911 *value *= NSEC_PER_USEC;
1923 int cmd_timechart(int argc, const char **argv)
1925 struct timechart tchart = {
1927 .comm = process_comm_event,
1928 .fork = process_fork_event,
1929 .exit = process_exit_event,
1930 .sample = process_sample_event,
1931 .ordered_events = true,
1934 .min_time = NSEC_PER_MSEC,
1937 const char *output_name = "output.svg";
1938 const struct option timechart_common_options[] = {
1939 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1940 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only, "output processes data only"),
1943 const struct option timechart_options[] = {
1944 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1945 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1946 OPT_INTEGER('w', "width", &svg_page_width, "page width"),
1947 OPT_CALLBACK(0, "highlight", NULL, "duration or task name",
1948 "highlight tasks. Pass duration in ns or process name.",
1950 OPT_CALLBACK('p', "process", NULL, "process",
1951 "process selector. Pass a pid or process name.",
1953 OPT_CALLBACK(0, "symfs", NULL, "directory",
1954 "Look for files with symbols relative to this directory",
1955 symbol__config_symfs),
1956 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1957 "min. number of tasks to print"),
1958 OPT_BOOLEAN('t', "topology", &tchart.topology,
1959 "sort CPUs according to topology"),
1960 OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
1961 "skip EAGAIN errors"),
1962 OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
1963 "all IO faster than min-time will visually appear longer",
1965 OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
1966 "merge events that are merge-dist us apart",
1968 OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
1969 OPT_PARENT(timechart_common_options),
1971 const char * const timechart_subcommands[] = { "record", NULL };
1972 const char *timechart_usage[] = {
1973 "perf timechart [<options>] {record}",
1976 const struct option timechart_record_options[] = {
1977 OPT_BOOLEAN('I', "io-only", &tchart.io_only,
1978 "record only IO data"),
1979 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1980 OPT_PARENT(timechart_common_options),
1982 const char * const timechart_record_usage[] = {
1983 "perf timechart record [<options>]",
1986 argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
1987 timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
1989 if (tchart.power_only && tchart.tasks_only) {
1990 pr_err("-P and -T options cannot be used at the same time.\n");
1994 if (argc && !strncmp(argv[0], "rec", 3)) {
1995 argc = parse_options(argc, argv, timechart_record_options,
1996 timechart_record_usage,
1997 PARSE_OPT_STOP_AT_NON_OPTION);
1999 if (tchart.power_only && tchart.tasks_only) {
2000 pr_err("-P and -T options cannot be used at the same time.\n");
2005 return timechart__io_record(argc, argv);
2007 return timechart__record(&tchart, argc, argv);
2009 usage_with_options(timechart_usage, timechart_options);
2013 return __cmd_timechart(&tchart, output_name);