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
15 #include <traceevent/event-parse.h>
19 #include "util/util.h"
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"
32 #include "util/header.h"
33 #include "util/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"
41 #define SUPPORT_OLD_POWER_EVENTS 1
42 #define PWR_EVENT_EXIT -1
49 struct perf_tool tool;
50 struct per_pid *all_data;
51 struct power_event *power_events;
52 struct wake_event *wake_events;
55 u64 min_freq, /* Lowest CPU frequency seen */
56 max_freq, /* Highest CPU frequency seen */
58 first_time, last_time;
68 * Datastructure layout:
69 * We keep an list of "pid"s, matching the kernels notion of a task struct.
70 * Each "pid" entry, has a list of "comm"s.
71 * this is because we want to track different programs different, while
72 * exec will reuse the original pid (by design).
73 * Each comm has a list of samples that will be used to draw
88 struct per_pidcomm *all;
89 struct per_pidcomm *current;
94 struct per_pidcomm *next;
108 struct cpu_sample *samples;
111 struct sample_wrapper {
112 struct sample_wrapper *next;
115 unsigned char data[0];
119 #define TYPE_RUNNING 1
120 #define TYPE_WAITING 2
121 #define TYPE_BLOCKED 3
124 struct cpu_sample *next;
130 const char *backtrace;
137 struct power_event *next;
146 struct wake_event *next;
150 const char *backtrace;
153 struct process_filter {
156 struct process_filter *next;
159 static struct process_filter *process_filter;
162 static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
164 struct per_pid *cursor = tchart->all_data;
167 if (cursor->pid == pid)
169 cursor = cursor->next;
171 cursor = zalloc(sizeof(*cursor));
172 assert(cursor != NULL);
174 cursor->next = tchart->all_data;
175 tchart->all_data = cursor;
179 static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
182 struct per_pidcomm *c;
183 p = find_create_pid(tchart, pid);
186 if (c->comm && strcmp(c->comm, comm) == 0) {
191 c->comm = strdup(comm);
197 c = zalloc(sizeof(*c));
199 c->comm = strdup(comm);
205 static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
207 struct per_pid *p, *pp;
208 p = find_create_pid(tchart, pid);
209 pp = find_create_pid(tchart, ppid);
211 if (pp->current && pp->current->comm && !p->current)
212 pid_set_comm(tchart, pid, pp->current->comm);
214 p->start_time = timestamp;
216 p->current->start_time = timestamp;
217 p->current->state_since = timestamp;
221 static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
224 p = find_create_pid(tchart, pid);
225 p->end_time = timestamp;
227 p->current->end_time = timestamp;
230 static void pid_put_sample(struct timechart *tchart, int pid, int type,
231 unsigned int cpu, u64 start, u64 end,
232 const char *backtrace)
235 struct per_pidcomm *c;
236 struct cpu_sample *sample;
238 p = find_create_pid(tchart, pid);
241 c = zalloc(sizeof(*c));
248 sample = zalloc(sizeof(*sample));
249 assert(sample != NULL);
250 sample->start_time = start;
251 sample->end_time = end;
253 sample->next = c->samples;
255 sample->backtrace = backtrace;
258 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
259 c->total_time += (end-start);
260 p->total_time += (end-start);
263 if (c->start_time == 0 || c->start_time > start)
264 c->start_time = start;
265 if (p->start_time == 0 || p->start_time > start)
266 p->start_time = start;
269 #define MAX_CPUS 4096
271 static u64 cpus_cstate_start_times[MAX_CPUS];
272 static int cpus_cstate_state[MAX_CPUS];
273 static u64 cpus_pstate_start_times[MAX_CPUS];
274 static u64 cpus_pstate_state[MAX_CPUS];
276 static int process_comm_event(struct perf_tool *tool,
277 union perf_event *event,
278 struct perf_sample *sample __maybe_unused,
279 struct machine *machine __maybe_unused)
281 struct timechart *tchart = container_of(tool, struct timechart, tool);
282 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
286 static int process_fork_event(struct perf_tool *tool,
287 union perf_event *event,
288 struct perf_sample *sample __maybe_unused,
289 struct machine *machine __maybe_unused)
291 struct timechart *tchart = container_of(tool, struct timechart, tool);
292 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
296 static int process_exit_event(struct perf_tool *tool,
297 union perf_event *event,
298 struct perf_sample *sample __maybe_unused,
299 struct machine *machine __maybe_unused)
301 struct timechart *tchart = container_of(tool, struct timechart, tool);
302 pid_exit(tchart, event->fork.pid, event->fork.time);
306 #ifdef SUPPORT_OLD_POWER_EVENTS
307 static int use_old_power_events;
310 static void c_state_start(int cpu, u64 timestamp, int state)
312 cpus_cstate_start_times[cpu] = timestamp;
313 cpus_cstate_state[cpu] = state;
316 static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
318 struct power_event *pwr = zalloc(sizeof(*pwr));
323 pwr->state = cpus_cstate_state[cpu];
324 pwr->start_time = cpus_cstate_start_times[cpu];
325 pwr->end_time = timestamp;
328 pwr->next = tchart->power_events;
330 tchart->power_events = pwr;
333 static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
335 struct power_event *pwr;
337 if (new_freq > 8000000) /* detect invalid data */
340 pwr = zalloc(sizeof(*pwr));
344 pwr->state = cpus_pstate_state[cpu];
345 pwr->start_time = cpus_pstate_start_times[cpu];
346 pwr->end_time = timestamp;
349 pwr->next = tchart->power_events;
351 if (!pwr->start_time)
352 pwr->start_time = tchart->first_time;
354 tchart->power_events = pwr;
356 cpus_pstate_state[cpu] = new_freq;
357 cpus_pstate_start_times[cpu] = timestamp;
359 if ((u64)new_freq > tchart->max_freq)
360 tchart->max_freq = new_freq;
362 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
363 tchart->min_freq = new_freq;
365 if (new_freq == tchart->max_freq - 1000)
366 tchart->turbo_frequency = tchart->max_freq;
369 static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
370 int waker, int wakee, u8 flags, const char *backtrace)
373 struct wake_event *we = zalloc(sizeof(*we));
378 we->time = timestamp;
380 we->backtrace = backtrace;
382 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
386 we->next = tchart->wake_events;
387 tchart->wake_events = we;
388 p = find_create_pid(tchart, we->wakee);
390 if (p && p->current && p->current->state == TYPE_NONE) {
391 p->current->state_since = timestamp;
392 p->current->state = TYPE_WAITING;
394 if (p && p->current && p->current->state == TYPE_BLOCKED) {
395 pid_put_sample(tchart, p->pid, p->current->state, cpu,
396 p->current->state_since, timestamp, NULL);
397 p->current->state_since = timestamp;
398 p->current->state = TYPE_WAITING;
402 static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
403 int prev_pid, int next_pid, u64 prev_state,
404 const char *backtrace)
406 struct per_pid *p = NULL, *prev_p;
408 prev_p = find_create_pid(tchart, prev_pid);
410 p = find_create_pid(tchart, next_pid);
412 if (prev_p->current && prev_p->current->state != TYPE_NONE)
413 pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
414 prev_p->current->state_since, timestamp,
416 if (p && p->current) {
417 if (p->current->state != TYPE_NONE)
418 pid_put_sample(tchart, next_pid, p->current->state, cpu,
419 p->current->state_since, timestamp,
422 p->current->state_since = timestamp;
423 p->current->state = TYPE_RUNNING;
426 if (prev_p->current) {
427 prev_p->current->state = TYPE_NONE;
428 prev_p->current->state_since = timestamp;
430 prev_p->current->state = TYPE_BLOCKED;
432 prev_p->current->state = TYPE_WAITING;
436 static const char *cat_backtrace(union perf_event *event,
437 struct perf_sample *sample,
438 struct machine *machine)
440 struct addr_location al;
444 u8 cpumode = PERF_RECORD_MISC_USER;
445 struct addr_location tal;
446 struct ip_callchain *chain = sample->callchain;
447 FILE *f = open_memstream(&p, &p_len);
450 perror("open_memstream error");
457 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
458 fprintf(stderr, "problem processing %d event, skipping it.\n",
463 for (i = 0; i < chain->nr; i++) {
466 if (callchain_param.order == ORDER_CALLEE)
469 ip = chain->ips[chain->nr - i - 1];
471 if (ip >= PERF_CONTEXT_MAX) {
473 case PERF_CONTEXT_HV:
474 cpumode = PERF_RECORD_MISC_HYPERVISOR;
476 case PERF_CONTEXT_KERNEL:
477 cpumode = PERF_RECORD_MISC_KERNEL;
479 case PERF_CONTEXT_USER:
480 cpumode = PERF_RECORD_MISC_USER;
483 pr_debug("invalid callchain context: "
484 "%"PRId64"\n", (s64) ip);
487 * It seems the callchain is corrupted.
497 tal.filtered = false;
498 thread__find_addr_location(al.thread, machine, cpumode,
499 MAP__FUNCTION, ip, &tal);
502 fprintf(f, "..... %016" PRIx64 " %s\n", ip,
505 fprintf(f, "..... %016" PRIx64 "\n", ip);
514 typedef int (*tracepoint_handler)(struct timechart *tchart,
515 struct perf_evsel *evsel,
516 struct perf_sample *sample,
517 const char *backtrace);
519 static int process_sample_event(struct perf_tool *tool,
520 union perf_event *event,
521 struct perf_sample *sample,
522 struct perf_evsel *evsel,
523 struct machine *machine)
525 struct timechart *tchart = container_of(tool, struct timechart, tool);
527 if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
528 if (!tchart->first_time || tchart->first_time > sample->time)
529 tchart->first_time = sample->time;
530 if (tchart->last_time < sample->time)
531 tchart->last_time = sample->time;
534 if (evsel->handler != NULL) {
535 tracepoint_handler f = evsel->handler;
536 return f(tchart, evsel, sample,
537 cat_backtrace(event, sample, machine));
544 process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
545 struct perf_evsel *evsel,
546 struct perf_sample *sample,
547 const char *backtrace __maybe_unused)
549 u32 state = perf_evsel__intval(evsel, sample, "state");
550 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
552 if (state == (u32)PWR_EVENT_EXIT)
553 c_state_end(tchart, cpu_id, sample->time);
555 c_state_start(cpu_id, sample->time, state);
560 process_sample_cpu_frequency(struct timechart *tchart,
561 struct perf_evsel *evsel,
562 struct perf_sample *sample,
563 const char *backtrace __maybe_unused)
565 u32 state = perf_evsel__intval(evsel, sample, "state");
566 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
568 p_state_change(tchart, cpu_id, sample->time, state);
573 process_sample_sched_wakeup(struct timechart *tchart,
574 struct perf_evsel *evsel,
575 struct perf_sample *sample,
576 const char *backtrace)
578 u8 flags = perf_evsel__intval(evsel, sample, "common_flags");
579 int waker = perf_evsel__intval(evsel, sample, "common_pid");
580 int wakee = perf_evsel__intval(evsel, sample, "pid");
582 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
587 process_sample_sched_switch(struct timechart *tchart,
588 struct perf_evsel *evsel,
589 struct perf_sample *sample,
590 const char *backtrace)
592 int prev_pid = perf_evsel__intval(evsel, sample, "prev_pid");
593 int next_pid = perf_evsel__intval(evsel, sample, "next_pid");
594 u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state");
596 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
597 prev_state, backtrace);
601 #ifdef SUPPORT_OLD_POWER_EVENTS
603 process_sample_power_start(struct timechart *tchart __maybe_unused,
604 struct perf_evsel *evsel,
605 struct perf_sample *sample,
606 const char *backtrace __maybe_unused)
608 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
609 u64 value = perf_evsel__intval(evsel, sample, "value");
611 c_state_start(cpu_id, sample->time, value);
616 process_sample_power_end(struct timechart *tchart,
617 struct perf_evsel *evsel __maybe_unused,
618 struct perf_sample *sample,
619 const char *backtrace __maybe_unused)
621 c_state_end(tchart, sample->cpu, sample->time);
626 process_sample_power_frequency(struct timechart *tchart,
627 struct perf_evsel *evsel,
628 struct perf_sample *sample,
629 const char *backtrace __maybe_unused)
631 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
632 u64 value = perf_evsel__intval(evsel, sample, "value");
634 p_state_change(tchart, cpu_id, sample->time, value);
637 #endif /* SUPPORT_OLD_POWER_EVENTS */
640 * After the last sample we need to wrap up the current C/P state
641 * and close out each CPU for these.
643 static void end_sample_processing(struct timechart *tchart)
646 struct power_event *pwr;
648 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
651 pwr = zalloc(sizeof(*pwr));
655 pwr->state = cpus_cstate_state[cpu];
656 pwr->start_time = cpus_cstate_start_times[cpu];
657 pwr->end_time = tchart->last_time;
660 pwr->next = tchart->power_events;
662 tchart->power_events = pwr;
666 pwr = zalloc(sizeof(*pwr));
670 pwr->state = cpus_pstate_state[cpu];
671 pwr->start_time = cpus_pstate_start_times[cpu];
672 pwr->end_time = tchart->last_time;
675 pwr->next = tchart->power_events;
677 if (!pwr->start_time)
678 pwr->start_time = tchart->first_time;
680 pwr->state = tchart->min_freq;
681 tchart->power_events = pwr;
686 * Sort the pid datastructure
688 static void sort_pids(struct timechart *tchart)
690 struct per_pid *new_list, *p, *cursor, *prev;
691 /* sort by ppid first, then by pid, lowest to highest */
695 while (tchart->all_data) {
696 p = tchart->all_data;
697 tchart->all_data = p->next;
700 if (new_list == NULL) {
708 if (cursor->ppid > p->ppid ||
709 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
710 /* must insert before */
712 p->next = prev->next;
725 cursor = cursor->next;
730 tchart->all_data = new_list;
734 static void draw_c_p_states(struct timechart *tchart)
736 struct power_event *pwr;
737 pwr = tchart->power_events;
740 * two pass drawing so that the P state bars are on top of the C state blocks
743 if (pwr->type == CSTATE)
744 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
748 pwr = tchart->power_events;
750 if (pwr->type == PSTATE) {
752 pwr->state = tchart->min_freq;
753 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
759 static void draw_wakeups(struct timechart *tchart)
761 struct wake_event *we;
763 struct per_pidcomm *c;
765 we = tchart->wake_events;
767 int from = 0, to = 0;
768 char *task_from = NULL, *task_to = NULL;
770 /* locate the column of the waker and wakee */
771 p = tchart->all_data;
773 if (p->pid == we->waker || p->pid == we->wakee) {
776 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
777 if (p->pid == we->waker && !from) {
779 task_from = strdup(c->comm);
781 if (p->pid == we->wakee && !to) {
783 task_to = strdup(c->comm);
790 if (p->pid == we->waker && !from) {
792 task_from = strdup(c->comm);
794 if (p->pid == we->wakee && !to) {
796 task_to = strdup(c->comm);
805 task_from = malloc(40);
806 sprintf(task_from, "[%i]", we->waker);
809 task_to = malloc(40);
810 sprintf(task_to, "[%i]", we->wakee);
814 svg_interrupt(we->time, to, we->backtrace);
815 else if (from && to && abs(from - to) == 1)
816 svg_wakeline(we->time, from, to, we->backtrace);
818 svg_partial_wakeline(we->time, from, task_from, to,
819 task_to, we->backtrace);
827 static void draw_cpu_usage(struct timechart *tchart)
830 struct per_pidcomm *c;
831 struct cpu_sample *sample;
832 p = tchart->all_data;
838 if (sample->type == TYPE_RUNNING) {
839 svg_process(sample->cpu,
848 sample = sample->next;
856 static void draw_process_bars(struct timechart *tchart)
859 struct per_pidcomm *c;
860 struct cpu_sample *sample;
863 Y = 2 * tchart->numcpus + 2;
865 p = tchart->all_data;
875 svg_box(Y, c->start_time, c->end_time, "process");
878 if (sample->type == TYPE_RUNNING)
879 svg_running(Y, sample->cpu,
883 if (sample->type == TYPE_BLOCKED)
884 svg_blocked(Y, sample->cpu,
888 if (sample->type == TYPE_WAITING)
889 svg_waiting(Y, sample->cpu,
893 sample = sample->next;
898 if (c->total_time > 5000000000) /* 5 seconds */
899 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0);
901 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0);
903 svg_text(Y, c->start_time, comm);
913 static void add_process_filter(const char *string)
915 int pid = strtoull(string, NULL, 10);
916 struct process_filter *filt = malloc(sizeof(*filt));
921 filt->name = strdup(string);
923 filt->next = process_filter;
925 process_filter = filt;
928 static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
930 struct process_filter *filt;
934 filt = process_filter;
936 if (filt->pid && p->pid == filt->pid)
938 if (strcmp(filt->name, c->comm) == 0)
945 static int determine_display_tasks_filtered(struct timechart *tchart)
948 struct per_pidcomm *c;
951 p = tchart->all_data;
954 if (p->start_time == 1)
955 p->start_time = tchart->first_time;
957 /* no exit marker, task kept running to the end */
958 if (p->end_time == 0)
959 p->end_time = tchart->last_time;
966 if (c->start_time == 1)
967 c->start_time = tchart->first_time;
969 if (passes_filter(p, c)) {
975 if (c->end_time == 0)
976 c->end_time = tchart->last_time;
985 static int determine_display_tasks(struct timechart *tchart, u64 threshold)
988 struct per_pidcomm *c;
992 return determine_display_tasks_filtered(tchart);
994 p = tchart->all_data;
997 if (p->start_time == 1)
998 p->start_time = tchart->first_time;
1000 /* no exit marker, task kept running to the end */
1001 if (p->end_time == 0)
1002 p->end_time = tchart->last_time;
1003 if (p->total_time >= threshold)
1011 if (c->start_time == 1)
1012 c->start_time = tchart->first_time;
1014 if (c->total_time >= threshold) {
1019 if (c->end_time == 0)
1020 c->end_time = tchart->last_time;
1031 #define TIME_THRESH 10000000
1033 static void write_svg_file(struct timechart *tchart, const char *filename)
1037 int thresh = TIME_THRESH;
1039 if (tchart->power_only)
1040 tchart->proc_num = 0;
1042 /* We'd like to show at least proc_num tasks;
1043 * be less picky if we have fewer */
1045 count = determine_display_tasks(tchart, thresh);
1047 } while (!process_filter && thresh && count < tchart->proc_num);
1049 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1054 for (i = 0; i < tchart->numcpus; i++)
1055 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
1057 draw_cpu_usage(tchart);
1058 if (tchart->proc_num)
1059 draw_process_bars(tchart);
1060 if (!tchart->tasks_only)
1061 draw_c_p_states(tchart);
1062 if (tchart->proc_num)
1063 draw_wakeups(tchart);
1068 static int process_header(struct perf_file_section *section __maybe_unused,
1069 struct perf_header *ph,
1071 int fd __maybe_unused,
1074 struct timechart *tchart = data;
1078 tchart->numcpus = ph->env.nr_cpus_avail;
1087 static int __cmd_timechart(struct timechart *tchart, const char *output_name)
1089 const struct perf_evsel_str_handler power_tracepoints[] = {
1090 { "power:cpu_idle", process_sample_cpu_idle },
1091 { "power:cpu_frequency", process_sample_cpu_frequency },
1092 { "sched:sched_wakeup", process_sample_sched_wakeup },
1093 { "sched:sched_switch", process_sample_sched_switch },
1094 #ifdef SUPPORT_OLD_POWER_EVENTS
1095 { "power:power_start", process_sample_power_start },
1096 { "power:power_end", process_sample_power_end },
1097 { "power:power_frequency", process_sample_power_frequency },
1100 struct perf_data_file file = {
1102 .mode = PERF_DATA_MODE_READ,
1105 struct perf_session *session = perf_session__new(&file, false,
1109 if (session == NULL)
1112 (void)perf_header__process_sections(&session->header,
1113 perf_data_file__fd(session->file),
1117 if (!perf_session__has_traces(session, "timechart record"))
1120 if (perf_session__set_tracepoints_handlers(session,
1121 power_tracepoints)) {
1122 pr_err("Initializing session tracepoint handlers failed\n");
1126 ret = perf_session__process_events(session, &tchart->tool);
1130 end_sample_processing(tchart);
1134 write_svg_file(tchart, output_name);
1136 pr_info("Written %2.1f seconds of trace to %s.\n",
1137 (tchart->last_time - tchart->first_time) / 1000000000.0, output_name);
1139 perf_session__delete(session);
1143 static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1145 unsigned int rec_argc, i, j;
1146 const char **rec_argv;
1148 unsigned int record_elems;
1150 const char * const common_args[] = {
1151 "record", "-a", "-R", "-c", "1",
1153 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1155 const char * const backtrace_args[] = {
1158 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1160 const char * const power_args[] = {
1161 "-e", "power:cpu_frequency",
1162 "-e", "power:cpu_idle",
1164 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1166 const char * const old_power_args[] = {
1167 #ifdef SUPPORT_OLD_POWER_EVENTS
1168 "-e", "power:power_start",
1169 "-e", "power:power_end",
1170 "-e", "power:power_frequency",
1173 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1175 const char * const tasks_args[] = {
1176 "-e", "sched:sched_wakeup",
1177 "-e", "sched:sched_switch",
1179 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1181 #ifdef SUPPORT_OLD_POWER_EVENTS
1182 if (!is_valid_tracepoint("power:cpu_idle") &&
1183 is_valid_tracepoint("power:power_start")) {
1184 use_old_power_events = 1;
1187 old_power_args_nr = 0;
1191 if (tchart->power_only)
1194 if (tchart->tasks_only) {
1196 old_power_args_nr = 0;
1199 if (!tchart->with_backtrace)
1200 backtrace_args_no = 0;
1202 record_elems = common_args_nr + tasks_args_nr +
1203 power_args_nr + old_power_args_nr + backtrace_args_no;
1205 rec_argc = record_elems + argc;
1206 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1208 if (rec_argv == NULL)
1212 for (i = 0; i < common_args_nr; i++)
1213 *p++ = strdup(common_args[i]);
1215 for (i = 0; i < backtrace_args_no; i++)
1216 *p++ = strdup(backtrace_args[i]);
1218 for (i = 0; i < tasks_args_nr; i++)
1219 *p++ = strdup(tasks_args[i]);
1221 for (i = 0; i < power_args_nr; i++)
1222 *p++ = strdup(power_args[i]);
1224 for (i = 0; i < old_power_args_nr; i++)
1225 *p++ = strdup(old_power_args[i]);
1227 for (j = 1; j < (unsigned int)argc; j++)
1230 return cmd_record(rec_argc, rec_argv, NULL);
1234 parse_process(const struct option *opt __maybe_unused, const char *arg,
1235 int __maybe_unused unset)
1238 add_process_filter(arg);
1242 int cmd_timechart(int argc, const char **argv,
1243 const char *prefix __maybe_unused)
1245 struct timechart tchart = {
1247 .comm = process_comm_event,
1248 .fork = process_fork_event,
1249 .exit = process_exit_event,
1250 .sample = process_sample_event,
1251 .ordered_samples = true,
1255 const char *output_name = "output.svg";
1256 const struct option timechart_options[] = {
1257 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1258 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1259 OPT_INTEGER('w', "width", &svg_page_width, "page width"),
1260 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1261 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
1262 "output processes data only"),
1263 OPT_CALLBACK('p', "process", NULL, "process",
1264 "process selector. Pass a pid or process name.",
1266 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1267 "Look for files with symbols relative to this directory"),
1268 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1269 "min. number of tasks to print"),
1272 const char * const timechart_usage[] = {
1273 "perf timechart [<options>] {record}",
1277 const struct option record_options[] = {
1278 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1279 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
1280 "output processes data only"),
1281 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1284 const char * const record_usage[] = {
1285 "perf timechart record [<options>]",
1288 argc = parse_options(argc, argv, timechart_options, timechart_usage,
1289 PARSE_OPT_STOP_AT_NON_OPTION);
1291 if (tchart.power_only && tchart.tasks_only) {
1292 pr_err("-P and -T options cannot be used at the same time.\n");
1298 if (argc && !strncmp(argv[0], "rec", 3)) {
1299 argc = parse_options(argc, argv, record_options, record_usage,
1300 PARSE_OPT_STOP_AT_NON_OPTION);
1302 if (tchart.power_only && tchart.tasks_only) {
1303 pr_err("-P and -T options cannot be used at the same time.\n");
1307 return timechart__record(&tchart, argc, argv);
1309 usage_with_options(timechart_usage, timechart_options);
1313 return __cmd_timechart(&tchart, output_name);