1 // SPDX-License-Identifier: GPL-2.0-only
3 * builtin-timechart.c - make an svg timechart of system activity
5 * (C) Copyright 2009 Intel Corporation
8 * Arjan van de Ven <arjan@linux.intel.com>
15 #include "util/color.h"
16 #include <linux/list.h>
17 #include "util/evlist.h" // for struct evsel_str_handler
18 #include "util/evsel.h"
19 #include <linux/kernel.h>
20 #include <linux/rbtree.h>
21 #include <linux/time64.h>
22 #include <linux/zalloc.h>
23 #include "util/symbol.h"
24 #include "util/thread.h"
25 #include "util/callchain.h"
28 #include "util/header.h"
29 #include <subcmd/pager.h>
30 #include <subcmd/parse-options.h>
31 #include "util/parse-events.h"
32 #include "util/event.h"
33 #include "util/session.h"
34 #include "util/svghelper.h"
35 #include "util/tool.h"
36 #include "util/data.h"
37 #include "util/debug.h"
39 #ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE
40 FILE *open_memstream(char **ptr, size_t *sizeloc);
43 #define SUPPORT_OLD_POWER_EVENTS 1
44 #define PWR_EVENT_EXIT -1
51 struct perf_tool tool;
52 struct per_pid *all_data;
53 struct power_event *power_events;
54 struct wake_event *wake_events;
57 u64 min_freq, /* Lowest CPU frequency seen */
58 max_freq, /* Highest CPU frequency seen */
60 first_time, last_time;
66 /* IO related settings */
79 * Datastructure layout:
80 * We keep an list of "pid"s, matching the kernels notion of a task struct.
81 * Each "pid" entry, has a list of "comm"s.
82 * this is because we want to track different programs different, while
83 * exec will reuse the original pid (by design).
84 * Each comm has a list of samples that will be used to draw
100 struct per_pidcomm *all;
101 struct per_pidcomm *current;
106 struct per_pidcomm *next;
122 struct cpu_sample *samples;
123 struct io_sample *io_samples;
126 struct sample_wrapper {
127 struct sample_wrapper *next;
130 unsigned char data[0];
134 #define TYPE_RUNNING 1
135 #define TYPE_WAITING 2
136 #define TYPE_BLOCKED 3
139 struct cpu_sample *next;
145 const char *backtrace;
158 struct io_sample *next;
173 struct power_event *next;
182 struct wake_event *next;
186 const char *backtrace;
189 struct process_filter {
192 struct process_filter *next;
195 static struct process_filter *process_filter;
198 static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
200 struct per_pid *cursor = tchart->all_data;
203 if (cursor->pid == pid)
205 cursor = cursor->next;
207 cursor = zalloc(sizeof(*cursor));
208 assert(cursor != NULL);
210 cursor->next = tchart->all_data;
211 tchart->all_data = cursor;
215 static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
218 struct per_pidcomm *c;
219 p = find_create_pid(tchart, pid);
222 if (c->comm && strcmp(c->comm, comm) == 0) {
227 c->comm = strdup(comm);
233 c = zalloc(sizeof(*c));
235 c->comm = strdup(comm);
241 static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
243 struct per_pid *p, *pp;
244 p = find_create_pid(tchart, pid);
245 pp = find_create_pid(tchart, ppid);
247 if (pp->current && pp->current->comm && !p->current)
248 pid_set_comm(tchart, pid, pp->current->comm);
250 p->start_time = timestamp;
251 if (p->current && !p->current->start_time) {
252 p->current->start_time = timestamp;
253 p->current->state_since = timestamp;
257 static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
260 p = find_create_pid(tchart, pid);
261 p->end_time = timestamp;
263 p->current->end_time = timestamp;
266 static void pid_put_sample(struct timechart *tchart, int pid, int type,
267 unsigned int cpu, u64 start, u64 end,
268 const char *backtrace)
271 struct per_pidcomm *c;
272 struct cpu_sample *sample;
274 p = find_create_pid(tchart, pid);
277 c = zalloc(sizeof(*c));
284 sample = zalloc(sizeof(*sample));
285 assert(sample != NULL);
286 sample->start_time = start;
287 sample->end_time = end;
289 sample->next = c->samples;
291 sample->backtrace = backtrace;
294 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
295 c->total_time += (end-start);
296 p->total_time += (end-start);
299 if (c->start_time == 0 || c->start_time > start)
300 c->start_time = start;
301 if (p->start_time == 0 || p->start_time > start)
302 p->start_time = start;
305 #define MAX_CPUS 4096
307 static u64 cpus_cstate_start_times[MAX_CPUS];
308 static int cpus_cstate_state[MAX_CPUS];
309 static u64 cpus_pstate_start_times[MAX_CPUS];
310 static u64 cpus_pstate_state[MAX_CPUS];
312 static int process_comm_event(struct perf_tool *tool,
313 union perf_event *event,
314 struct perf_sample *sample __maybe_unused,
315 struct machine *machine __maybe_unused)
317 struct timechart *tchart = container_of(tool, struct timechart, tool);
318 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
322 static int process_fork_event(struct perf_tool *tool,
323 union perf_event *event,
324 struct perf_sample *sample __maybe_unused,
325 struct machine *machine __maybe_unused)
327 struct timechart *tchart = container_of(tool, struct timechart, tool);
328 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
332 static int process_exit_event(struct perf_tool *tool,
333 union perf_event *event,
334 struct perf_sample *sample __maybe_unused,
335 struct machine *machine __maybe_unused)
337 struct timechart *tchart = container_of(tool, struct timechart, tool);
338 pid_exit(tchart, event->fork.pid, event->fork.time);
342 #ifdef SUPPORT_OLD_POWER_EVENTS
343 static int use_old_power_events;
346 static void c_state_start(int cpu, u64 timestamp, int state)
348 cpus_cstate_start_times[cpu] = timestamp;
349 cpus_cstate_state[cpu] = state;
352 static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
354 struct power_event *pwr = zalloc(sizeof(*pwr));
359 pwr->state = cpus_cstate_state[cpu];
360 pwr->start_time = cpus_cstate_start_times[cpu];
361 pwr->end_time = timestamp;
364 pwr->next = tchart->power_events;
366 tchart->power_events = pwr;
369 static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
371 struct power_event *pwr;
373 if (new_freq > 8000000) /* detect invalid data */
376 pwr = zalloc(sizeof(*pwr));
380 pwr->state = cpus_pstate_state[cpu];
381 pwr->start_time = cpus_pstate_start_times[cpu];
382 pwr->end_time = timestamp;
385 pwr->next = tchart->power_events;
387 if (!pwr->start_time)
388 pwr->start_time = tchart->first_time;
390 tchart->power_events = pwr;
392 cpus_pstate_state[cpu] = new_freq;
393 cpus_pstate_start_times[cpu] = timestamp;
395 if ((u64)new_freq > tchart->max_freq)
396 tchart->max_freq = new_freq;
398 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
399 tchart->min_freq = new_freq;
401 if (new_freq == tchart->max_freq - 1000)
402 tchart->turbo_frequency = tchart->max_freq;
405 static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
406 int waker, int wakee, u8 flags, const char *backtrace)
409 struct wake_event *we = zalloc(sizeof(*we));
414 we->time = timestamp;
416 we->backtrace = backtrace;
418 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
422 we->next = tchart->wake_events;
423 tchart->wake_events = we;
424 p = find_create_pid(tchart, we->wakee);
426 if (p && p->current && p->current->state == TYPE_NONE) {
427 p->current->state_since = timestamp;
428 p->current->state = TYPE_WAITING;
430 if (p && p->current && p->current->state == TYPE_BLOCKED) {
431 pid_put_sample(tchart, p->pid, p->current->state, cpu,
432 p->current->state_since, timestamp, NULL);
433 p->current->state_since = timestamp;
434 p->current->state = TYPE_WAITING;
438 static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
439 int prev_pid, int next_pid, u64 prev_state,
440 const char *backtrace)
442 struct per_pid *p = NULL, *prev_p;
444 prev_p = find_create_pid(tchart, prev_pid);
446 p = find_create_pid(tchart, next_pid);
448 if (prev_p->current && prev_p->current->state != TYPE_NONE)
449 pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
450 prev_p->current->state_since, timestamp,
452 if (p && p->current) {
453 if (p->current->state != TYPE_NONE)
454 pid_put_sample(tchart, next_pid, p->current->state, cpu,
455 p->current->state_since, timestamp,
458 p->current->state_since = timestamp;
459 p->current->state = TYPE_RUNNING;
462 if (prev_p->current) {
463 prev_p->current->state = TYPE_NONE;
464 prev_p->current->state_since = timestamp;
466 prev_p->current->state = TYPE_BLOCKED;
468 prev_p->current->state = TYPE_WAITING;
472 static const char *cat_backtrace(union perf_event *event,
473 struct perf_sample *sample,
474 struct machine *machine)
476 struct addr_location al;
480 u8 cpumode = PERF_RECORD_MISC_USER;
481 struct addr_location tal;
482 struct ip_callchain *chain = sample->callchain;
483 FILE *f = open_memstream(&p, &p_len);
486 perror("open_memstream error");
493 if (machine__resolve(machine, &al, sample) < 0) {
494 fprintf(stderr, "problem processing %d event, skipping it.\n",
499 for (i = 0; i < chain->nr; i++) {
502 if (callchain_param.order == ORDER_CALLEE)
505 ip = chain->ips[chain->nr - i - 1];
507 if (ip >= PERF_CONTEXT_MAX) {
509 case PERF_CONTEXT_HV:
510 cpumode = PERF_RECORD_MISC_HYPERVISOR;
512 case PERF_CONTEXT_KERNEL:
513 cpumode = PERF_RECORD_MISC_KERNEL;
515 case PERF_CONTEXT_USER:
516 cpumode = PERF_RECORD_MISC_USER;
519 pr_debug("invalid callchain context: "
520 "%"PRId64"\n", (s64) ip);
523 * It seems the callchain is corrupted.
533 if (thread__find_symbol(al.thread, cpumode, ip, &tal))
534 fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name);
536 fprintf(f, "..... %016" PRIx64 "\n", ip);
539 addr_location__put(&al);
546 typedef int (*tracepoint_handler)(struct timechart *tchart,
548 struct perf_sample *sample,
549 const char *backtrace);
551 static int process_sample_event(struct perf_tool *tool,
552 union perf_event *event,
553 struct perf_sample *sample,
555 struct machine *machine)
557 struct timechart *tchart = container_of(tool, struct timechart, tool);
559 if (evsel->core.attr.sample_type & PERF_SAMPLE_TIME) {
560 if (!tchart->first_time || tchart->first_time > sample->time)
561 tchart->first_time = sample->time;
562 if (tchart->last_time < sample->time)
563 tchart->last_time = sample->time;
566 if (evsel->handler != NULL) {
567 tracepoint_handler f = evsel->handler;
568 return f(tchart, evsel, sample,
569 cat_backtrace(event, sample, machine));
576 process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
578 struct perf_sample *sample,
579 const char *backtrace __maybe_unused)
581 u32 state = perf_evsel__intval(evsel, sample, "state");
582 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
584 if (state == (u32)PWR_EVENT_EXIT)
585 c_state_end(tchart, cpu_id, sample->time);
587 c_state_start(cpu_id, sample->time, state);
592 process_sample_cpu_frequency(struct timechart *tchart,
594 struct perf_sample *sample,
595 const char *backtrace __maybe_unused)
597 u32 state = perf_evsel__intval(evsel, sample, "state");
598 u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
600 p_state_change(tchart, cpu_id, sample->time, state);
605 process_sample_sched_wakeup(struct timechart *tchart,
607 struct perf_sample *sample,
608 const char *backtrace)
610 u8 flags = perf_evsel__intval(evsel, sample, "common_flags");
611 int waker = perf_evsel__intval(evsel, sample, "common_pid");
612 int wakee = perf_evsel__intval(evsel, sample, "pid");
614 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
619 process_sample_sched_switch(struct timechart *tchart,
621 struct perf_sample *sample,
622 const char *backtrace)
624 int prev_pid = perf_evsel__intval(evsel, sample, "prev_pid");
625 int next_pid = perf_evsel__intval(evsel, sample, "next_pid");
626 u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state");
628 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
629 prev_state, backtrace);
633 #ifdef SUPPORT_OLD_POWER_EVENTS
635 process_sample_power_start(struct timechart *tchart __maybe_unused,
637 struct perf_sample *sample,
638 const char *backtrace __maybe_unused)
640 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
641 u64 value = perf_evsel__intval(evsel, sample, "value");
643 c_state_start(cpu_id, sample->time, value);
648 process_sample_power_end(struct timechart *tchart,
649 struct evsel *evsel __maybe_unused,
650 struct perf_sample *sample,
651 const char *backtrace __maybe_unused)
653 c_state_end(tchart, sample->cpu, sample->time);
658 process_sample_power_frequency(struct timechart *tchart,
660 struct perf_sample *sample,
661 const char *backtrace __maybe_unused)
663 u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
664 u64 value = perf_evsel__intval(evsel, sample, "value");
666 p_state_change(tchart, cpu_id, sample->time, value);
669 #endif /* SUPPORT_OLD_POWER_EVENTS */
672 * After the last sample we need to wrap up the current C/P state
673 * and close out each CPU for these.
675 static void end_sample_processing(struct timechart *tchart)
678 struct power_event *pwr;
680 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
683 pwr = zalloc(sizeof(*pwr));
687 pwr->state = cpus_cstate_state[cpu];
688 pwr->start_time = cpus_cstate_start_times[cpu];
689 pwr->end_time = tchart->last_time;
692 pwr->next = tchart->power_events;
694 tchart->power_events = pwr;
698 pwr = zalloc(sizeof(*pwr));
702 pwr->state = cpus_pstate_state[cpu];
703 pwr->start_time = cpus_pstate_start_times[cpu];
704 pwr->end_time = tchart->last_time;
707 pwr->next = tchart->power_events;
709 if (!pwr->start_time)
710 pwr->start_time = tchart->first_time;
712 pwr->state = tchart->min_freq;
713 tchart->power_events = pwr;
717 static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
720 struct per_pid *p = find_create_pid(tchart, pid);
721 struct per_pidcomm *c = p->current;
722 struct io_sample *sample;
723 struct io_sample *prev;
726 c = zalloc(sizeof(*c));
734 prev = c->io_samples;
736 if (prev && prev->start_time && !prev->end_time) {
737 pr_warning("Skip invalid start event: "
738 "previous event already started!\n");
740 /* remove previous event that has been started,
741 * we are not sure we will ever get an end for it */
742 c->io_samples = prev->next;
747 sample = zalloc(sizeof(*sample));
750 sample->start_time = start;
753 sample->next = c->io_samples;
754 c->io_samples = sample;
756 if (c->start_time == 0 || c->start_time > start)
757 c->start_time = start;
762 static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
765 struct per_pid *p = find_create_pid(tchart, pid);
766 struct per_pidcomm *c = p->current;
767 struct io_sample *sample, *prev;
770 pr_warning("Invalid pidcomm!\n");
774 sample = c->io_samples;
776 if (!sample) /* skip partially captured events */
779 if (sample->end_time) {
780 pr_warning("Skip invalid end event: "
781 "previous event already ended!\n");
785 if (sample->type != type) {
786 pr_warning("Skip invalid end event: invalid event type!\n");
790 sample->end_time = end;
793 /* we want to be able to see small and fast transfers, so make them
794 * at least min_time long, but don't overlap them */
795 if (sample->end_time - sample->start_time < tchart->min_time)
796 sample->end_time = sample->start_time + tchart->min_time;
797 if (prev && sample->start_time < prev->end_time) {
798 if (prev->err) /* try to make errors more visible */
799 sample->start_time = prev->end_time;
801 prev->end_time = sample->start_time;
806 } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
807 type == IOTYPE_TX || type == IOTYPE_RX) {
809 if ((u64)ret > c->max_bytes)
812 c->total_bytes += ret;
813 p->total_bytes += ret;
817 /* merge two requests to make svg smaller and render-friendly */
819 prev->type == sample->type &&
820 prev->err == sample->err &&
821 prev->fd == sample->fd &&
822 prev->end_time + tchart->merge_dist >= sample->start_time) {
824 sample->bytes += prev->bytes;
825 sample->merges += prev->merges + 1;
827 sample->start_time = prev->start_time;
828 sample->next = prev->next;
831 if (!sample->err && sample->bytes > c->max_bytes)
832 c->max_bytes = sample->bytes;
841 process_enter_read(struct timechart *tchart,
843 struct perf_sample *sample)
845 long fd = perf_evsel__intval(evsel, sample, "fd");
846 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
851 process_exit_read(struct timechart *tchart,
853 struct perf_sample *sample)
855 long ret = perf_evsel__intval(evsel, sample, "ret");
856 return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
861 process_enter_write(struct timechart *tchart,
863 struct perf_sample *sample)
865 long fd = perf_evsel__intval(evsel, sample, "fd");
866 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
871 process_exit_write(struct timechart *tchart,
873 struct perf_sample *sample)
875 long ret = perf_evsel__intval(evsel, sample, "ret");
876 return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
881 process_enter_sync(struct timechart *tchart,
883 struct perf_sample *sample)
885 long fd = perf_evsel__intval(evsel, sample, "fd");
886 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
891 process_exit_sync(struct timechart *tchart,
893 struct perf_sample *sample)
895 long ret = perf_evsel__intval(evsel, sample, "ret");
896 return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
901 process_enter_tx(struct timechart *tchart,
903 struct perf_sample *sample)
905 long fd = perf_evsel__intval(evsel, sample, "fd");
906 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
911 process_exit_tx(struct timechart *tchart,
913 struct perf_sample *sample)
915 long ret = perf_evsel__intval(evsel, sample, "ret");
916 return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
921 process_enter_rx(struct timechart *tchart,
923 struct perf_sample *sample)
925 long fd = perf_evsel__intval(evsel, sample, "fd");
926 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
931 process_exit_rx(struct timechart *tchart,
933 struct perf_sample *sample)
935 long ret = perf_evsel__intval(evsel, sample, "ret");
936 return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
941 process_enter_poll(struct timechart *tchart,
943 struct perf_sample *sample)
945 long fd = perf_evsel__intval(evsel, sample, "fd");
946 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
951 process_exit_poll(struct timechart *tchart,
953 struct perf_sample *sample)
955 long ret = perf_evsel__intval(evsel, sample, "ret");
956 return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
961 * Sort the pid datastructure
963 static void sort_pids(struct timechart *tchart)
965 struct per_pid *new_list, *p, *cursor, *prev;
966 /* sort by ppid first, then by pid, lowest to highest */
970 while (tchart->all_data) {
971 p = tchart->all_data;
972 tchart->all_data = p->next;
975 if (new_list == NULL) {
983 if (cursor->ppid > p->ppid ||
984 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
985 /* must insert before */
987 p->next = prev->next;
1000 cursor = cursor->next;
1005 tchart->all_data = new_list;
1009 static void draw_c_p_states(struct timechart *tchart)
1011 struct power_event *pwr;
1012 pwr = tchart->power_events;
1015 * two pass drawing so that the P state bars are on top of the C state blocks
1018 if (pwr->type == CSTATE)
1019 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1023 pwr = tchart->power_events;
1025 if (pwr->type == PSTATE) {
1027 pwr->state = tchart->min_freq;
1028 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1034 static void draw_wakeups(struct timechart *tchart)
1036 struct wake_event *we;
1038 struct per_pidcomm *c;
1040 we = tchart->wake_events;
1042 int from = 0, to = 0;
1043 char *task_from = NULL, *task_to = NULL;
1045 /* locate the column of the waker and wakee */
1046 p = tchart->all_data;
1048 if (p->pid == we->waker || p->pid == we->wakee) {
1051 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
1052 if (p->pid == we->waker && !from) {
1054 task_from = strdup(c->comm);
1056 if (p->pid == we->wakee && !to) {
1058 task_to = strdup(c->comm);
1065 if (p->pid == we->waker && !from) {
1067 task_from = strdup(c->comm);
1069 if (p->pid == we->wakee && !to) {
1071 task_to = strdup(c->comm);
1080 task_from = malloc(40);
1081 sprintf(task_from, "[%i]", we->waker);
1084 task_to = malloc(40);
1085 sprintf(task_to, "[%i]", we->wakee);
1088 if (we->waker == -1)
1089 svg_interrupt(we->time, to, we->backtrace);
1090 else if (from && to && abs(from - to) == 1)
1091 svg_wakeline(we->time, from, to, we->backtrace);
1093 svg_partial_wakeline(we->time, from, task_from, to,
1094 task_to, we->backtrace);
1102 static void draw_cpu_usage(struct timechart *tchart)
1105 struct per_pidcomm *c;
1106 struct cpu_sample *sample;
1107 p = tchart->all_data;
1111 sample = c->samples;
1113 if (sample->type == TYPE_RUNNING) {
1114 svg_process(sample->cpu,
1122 sample = sample->next;
1130 static void draw_io_bars(struct timechart *tchart)
1136 struct per_pidcomm *c;
1137 struct io_sample *sample;
1140 p = tchart->all_data;
1150 svg_box(Y, c->start_time, c->end_time, "process3");
1151 sample = c->io_samples;
1152 for (sample = c->io_samples; sample; sample = sample->next) {
1153 double h = (double)sample->bytes / c->max_bytes;
1155 if (tchart->skip_eagain &&
1156 sample->err == -EAGAIN)
1162 if (sample->type == IOTYPE_SYNC)
1167 sample->err ? "error" : "sync",
1171 else if (sample->type == IOTYPE_POLL)
1176 sample->err ? "error" : "poll",
1180 else if (sample->type == IOTYPE_READ)
1185 sample->err ? "error" : "disk",
1189 else if (sample->type == IOTYPE_WRITE)
1194 sample->err ? "error" : "disk",
1198 else if (sample->type == IOTYPE_RX)
1203 sample->err ? "error" : "net",
1207 else if (sample->type == IOTYPE_TX)
1212 sample->err ? "error" : "net",
1219 bytes = c->total_bytes;
1221 bytes = bytes / 1024;
1225 bytes = bytes / 1024;
1229 bytes = bytes / 1024;
1234 sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
1235 svg_text(Y, c->start_time, comm);
1245 static void draw_process_bars(struct timechart *tchart)
1248 struct per_pidcomm *c;
1249 struct cpu_sample *sample;
1252 Y = 2 * tchart->numcpus + 2;
1254 p = tchart->all_data;
1264 svg_box(Y, c->start_time, c->end_time, "process");
1265 sample = c->samples;
1267 if (sample->type == TYPE_RUNNING)
1268 svg_running(Y, sample->cpu,
1272 if (sample->type == TYPE_BLOCKED)
1273 svg_blocked(Y, sample->cpu,
1277 if (sample->type == TYPE_WAITING)
1278 svg_waiting(Y, sample->cpu,
1282 sample = sample->next;
1287 if (c->total_time > 5000000000) /* 5 seconds */
1288 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / (double)NSEC_PER_SEC);
1290 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC);
1292 svg_text(Y, c->start_time, comm);
1302 static void add_process_filter(const char *string)
1304 int pid = strtoull(string, NULL, 10);
1305 struct process_filter *filt = malloc(sizeof(*filt));
1310 filt->name = strdup(string);
1312 filt->next = process_filter;
1314 process_filter = filt;
1317 static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
1319 struct process_filter *filt;
1320 if (!process_filter)
1323 filt = process_filter;
1325 if (filt->pid && p->pid == filt->pid)
1327 if (strcmp(filt->name, c->comm) == 0)
1334 static int determine_display_tasks_filtered(struct timechart *tchart)
1337 struct per_pidcomm *c;
1340 p = tchart->all_data;
1343 if (p->start_time == 1)
1344 p->start_time = tchart->first_time;
1346 /* no exit marker, task kept running to the end */
1347 if (p->end_time == 0)
1348 p->end_time = tchart->last_time;
1355 if (c->start_time == 1)
1356 c->start_time = tchart->first_time;
1358 if (passes_filter(p, c)) {
1364 if (c->end_time == 0)
1365 c->end_time = tchart->last_time;
1374 static int determine_display_tasks(struct timechart *tchart, u64 threshold)
1377 struct per_pidcomm *c;
1380 p = tchart->all_data;
1383 if (p->start_time == 1)
1384 p->start_time = tchart->first_time;
1386 /* no exit marker, task kept running to the end */
1387 if (p->end_time == 0)
1388 p->end_time = tchart->last_time;
1389 if (p->total_time >= threshold)
1397 if (c->start_time == 1)
1398 c->start_time = tchart->first_time;
1400 if (c->total_time >= threshold) {
1405 if (c->end_time == 0)
1406 c->end_time = tchart->last_time;
1415 static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
1418 struct per_pidcomm *c;
1421 p = timechart->all_data;
1423 /* no exit marker, task kept running to the end */
1424 if (p->end_time == 0)
1425 p->end_time = timechart->last_time;
1432 if (c->total_bytes >= threshold) {
1437 if (c->end_time == 0)
1438 c->end_time = timechart->last_time;
1447 #define BYTES_THRESH (1 * 1024 * 1024)
1448 #define TIME_THRESH 10000000
1450 static void write_svg_file(struct timechart *tchart, const char *filename)
1454 int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
1456 if (tchart->power_only)
1457 tchart->proc_num = 0;
1459 /* We'd like to show at least proc_num tasks;
1460 * be less picky if we have fewer */
1463 count = determine_display_tasks_filtered(tchart);
1464 else if (tchart->io_events)
1465 count = determine_display_io_tasks(tchart, thresh);
1467 count = determine_display_tasks(tchart, thresh);
1469 } while (!process_filter && thresh && count < tchart->proc_num);
1471 if (!tchart->proc_num)
1474 if (tchart->io_events) {
1475 open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
1480 draw_io_bars(tchart);
1482 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1488 for (i = 0; i < tchart->numcpus; i++)
1489 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
1491 draw_cpu_usage(tchart);
1492 if (tchart->proc_num)
1493 draw_process_bars(tchart);
1494 if (!tchart->tasks_only)
1495 draw_c_p_states(tchart);
1496 if (tchart->proc_num)
1497 draw_wakeups(tchart);
1503 static int process_header(struct perf_file_section *section __maybe_unused,
1504 struct perf_header *ph,
1506 int fd __maybe_unused,
1509 struct timechart *tchart = data;
1513 tchart->numcpus = ph->env.nr_cpus_avail;
1516 case HEADER_CPU_TOPOLOGY:
1517 if (!tchart->topology)
1520 if (svg_build_topology_map(&ph->env))
1521 fprintf(stderr, "problem building topology\n");
1531 static int __cmd_timechart(struct timechart *tchart, const char *output_name)
1533 const struct evsel_str_handler power_tracepoints[] = {
1534 { "power:cpu_idle", process_sample_cpu_idle },
1535 { "power:cpu_frequency", process_sample_cpu_frequency },
1536 { "sched:sched_wakeup", process_sample_sched_wakeup },
1537 { "sched:sched_switch", process_sample_sched_switch },
1538 #ifdef SUPPORT_OLD_POWER_EVENTS
1539 { "power:power_start", process_sample_power_start },
1540 { "power:power_end", process_sample_power_end },
1541 { "power:power_frequency", process_sample_power_frequency },
1544 { "syscalls:sys_enter_read", process_enter_read },
1545 { "syscalls:sys_enter_pread64", process_enter_read },
1546 { "syscalls:sys_enter_readv", process_enter_read },
1547 { "syscalls:sys_enter_preadv", process_enter_read },
1548 { "syscalls:sys_enter_write", process_enter_write },
1549 { "syscalls:sys_enter_pwrite64", process_enter_write },
1550 { "syscalls:sys_enter_writev", process_enter_write },
1551 { "syscalls:sys_enter_pwritev", process_enter_write },
1552 { "syscalls:sys_enter_sync", process_enter_sync },
1553 { "syscalls:sys_enter_sync_file_range", process_enter_sync },
1554 { "syscalls:sys_enter_fsync", process_enter_sync },
1555 { "syscalls:sys_enter_msync", process_enter_sync },
1556 { "syscalls:sys_enter_recvfrom", process_enter_rx },
1557 { "syscalls:sys_enter_recvmmsg", process_enter_rx },
1558 { "syscalls:sys_enter_recvmsg", process_enter_rx },
1559 { "syscalls:sys_enter_sendto", process_enter_tx },
1560 { "syscalls:sys_enter_sendmsg", process_enter_tx },
1561 { "syscalls:sys_enter_sendmmsg", process_enter_tx },
1562 { "syscalls:sys_enter_epoll_pwait", process_enter_poll },
1563 { "syscalls:sys_enter_epoll_wait", process_enter_poll },
1564 { "syscalls:sys_enter_poll", process_enter_poll },
1565 { "syscalls:sys_enter_ppoll", process_enter_poll },
1566 { "syscalls:sys_enter_pselect6", process_enter_poll },
1567 { "syscalls:sys_enter_select", process_enter_poll },
1569 { "syscalls:sys_exit_read", process_exit_read },
1570 { "syscalls:sys_exit_pread64", process_exit_read },
1571 { "syscalls:sys_exit_readv", process_exit_read },
1572 { "syscalls:sys_exit_preadv", process_exit_read },
1573 { "syscalls:sys_exit_write", process_exit_write },
1574 { "syscalls:sys_exit_pwrite64", process_exit_write },
1575 { "syscalls:sys_exit_writev", process_exit_write },
1576 { "syscalls:sys_exit_pwritev", process_exit_write },
1577 { "syscalls:sys_exit_sync", process_exit_sync },
1578 { "syscalls:sys_exit_sync_file_range", process_exit_sync },
1579 { "syscalls:sys_exit_fsync", process_exit_sync },
1580 { "syscalls:sys_exit_msync", process_exit_sync },
1581 { "syscalls:sys_exit_recvfrom", process_exit_rx },
1582 { "syscalls:sys_exit_recvmmsg", process_exit_rx },
1583 { "syscalls:sys_exit_recvmsg", process_exit_rx },
1584 { "syscalls:sys_exit_sendto", process_exit_tx },
1585 { "syscalls:sys_exit_sendmsg", process_exit_tx },
1586 { "syscalls:sys_exit_sendmmsg", process_exit_tx },
1587 { "syscalls:sys_exit_epoll_pwait", process_exit_poll },
1588 { "syscalls:sys_exit_epoll_wait", process_exit_poll },
1589 { "syscalls:sys_exit_poll", process_exit_poll },
1590 { "syscalls:sys_exit_ppoll", process_exit_poll },
1591 { "syscalls:sys_exit_pselect6", process_exit_poll },
1592 { "syscalls:sys_exit_select", process_exit_poll },
1594 struct perf_data data = {
1596 .mode = PERF_DATA_MODE_READ,
1597 .force = tchart->force,
1600 struct perf_session *session = perf_session__new(&data, false,
1604 if (session == NULL)
1607 symbol__init(&session->header.env);
1609 (void)perf_header__process_sections(&session->header,
1610 perf_data__fd(session->data),
1614 if (!perf_session__has_traces(session, "timechart record"))
1617 if (perf_session__set_tracepoints_handlers(session,
1618 power_tracepoints)) {
1619 pr_err("Initializing session tracepoint handlers failed\n");
1623 ret = perf_session__process_events(session);
1627 end_sample_processing(tchart);
1631 write_svg_file(tchart, output_name);
1633 pr_info("Written %2.1f seconds of trace to %s.\n",
1634 (tchart->last_time - tchart->first_time) / (double)NSEC_PER_SEC, output_name);
1636 perf_session__delete(session);
1640 static int timechart__io_record(int argc, const char **argv)
1642 unsigned int rec_argc, i;
1643 const char **rec_argv;
1645 char *filter = NULL;
1647 const char * const common_args[] = {
1648 "record", "-a", "-R", "-c", "1",
1650 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1652 const char * const disk_events[] = {
1653 "syscalls:sys_enter_read",
1654 "syscalls:sys_enter_pread64",
1655 "syscalls:sys_enter_readv",
1656 "syscalls:sys_enter_preadv",
1657 "syscalls:sys_enter_write",
1658 "syscalls:sys_enter_pwrite64",
1659 "syscalls:sys_enter_writev",
1660 "syscalls:sys_enter_pwritev",
1661 "syscalls:sys_enter_sync",
1662 "syscalls:sys_enter_sync_file_range",
1663 "syscalls:sys_enter_fsync",
1664 "syscalls:sys_enter_msync",
1666 "syscalls:sys_exit_read",
1667 "syscalls:sys_exit_pread64",
1668 "syscalls:sys_exit_readv",
1669 "syscalls:sys_exit_preadv",
1670 "syscalls:sys_exit_write",
1671 "syscalls:sys_exit_pwrite64",
1672 "syscalls:sys_exit_writev",
1673 "syscalls:sys_exit_pwritev",
1674 "syscalls:sys_exit_sync",
1675 "syscalls:sys_exit_sync_file_range",
1676 "syscalls:sys_exit_fsync",
1677 "syscalls:sys_exit_msync",
1679 unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
1681 const char * const net_events[] = {
1682 "syscalls:sys_enter_recvfrom",
1683 "syscalls:sys_enter_recvmmsg",
1684 "syscalls:sys_enter_recvmsg",
1685 "syscalls:sys_enter_sendto",
1686 "syscalls:sys_enter_sendmsg",
1687 "syscalls:sys_enter_sendmmsg",
1689 "syscalls:sys_exit_recvfrom",
1690 "syscalls:sys_exit_recvmmsg",
1691 "syscalls:sys_exit_recvmsg",
1692 "syscalls:sys_exit_sendto",
1693 "syscalls:sys_exit_sendmsg",
1694 "syscalls:sys_exit_sendmmsg",
1696 unsigned int net_events_nr = ARRAY_SIZE(net_events);
1698 const char * const poll_events[] = {
1699 "syscalls:sys_enter_epoll_pwait",
1700 "syscalls:sys_enter_epoll_wait",
1701 "syscalls:sys_enter_poll",
1702 "syscalls:sys_enter_ppoll",
1703 "syscalls:sys_enter_pselect6",
1704 "syscalls:sys_enter_select",
1706 "syscalls:sys_exit_epoll_pwait",
1707 "syscalls:sys_exit_epoll_wait",
1708 "syscalls:sys_exit_poll",
1709 "syscalls:sys_exit_ppoll",
1710 "syscalls:sys_exit_pselect6",
1711 "syscalls:sys_exit_select",
1713 unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
1715 rec_argc = common_args_nr +
1716 disk_events_nr * 4 +
1718 poll_events_nr * 4 +
1720 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1722 if (rec_argv == NULL)
1725 if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
1731 for (i = 0; i < common_args_nr; i++)
1732 *p++ = strdup(common_args[i]);
1734 for (i = 0; i < disk_events_nr; i++) {
1735 if (!is_valid_tracepoint(disk_events[i])) {
1741 *p++ = strdup(disk_events[i]);
1745 for (i = 0; i < net_events_nr; i++) {
1746 if (!is_valid_tracepoint(net_events[i])) {
1752 *p++ = strdup(net_events[i]);
1756 for (i = 0; i < poll_events_nr; i++) {
1757 if (!is_valid_tracepoint(poll_events[i])) {
1763 *p++ = strdup(poll_events[i]);
1768 for (i = 0; i < (unsigned int)argc; i++)
1771 return cmd_record(rec_argc, rec_argv);
1775 static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1777 unsigned int rec_argc, i, j;
1778 const char **rec_argv;
1780 unsigned int record_elems;
1782 const char * const common_args[] = {
1783 "record", "-a", "-R", "-c", "1",
1785 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1787 const char * const backtrace_args[] = {
1790 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1792 const char * const power_args[] = {
1793 "-e", "power:cpu_frequency",
1794 "-e", "power:cpu_idle",
1796 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1798 const char * const old_power_args[] = {
1799 #ifdef SUPPORT_OLD_POWER_EVENTS
1800 "-e", "power:power_start",
1801 "-e", "power:power_end",
1802 "-e", "power:power_frequency",
1805 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1807 const char * const tasks_args[] = {
1808 "-e", "sched:sched_wakeup",
1809 "-e", "sched:sched_switch",
1811 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1813 #ifdef SUPPORT_OLD_POWER_EVENTS
1814 if (!is_valid_tracepoint("power:cpu_idle") &&
1815 is_valid_tracepoint("power:power_start")) {
1816 use_old_power_events = 1;
1819 old_power_args_nr = 0;
1823 if (tchart->power_only)
1826 if (tchart->tasks_only) {
1828 old_power_args_nr = 0;
1831 if (!tchart->with_backtrace)
1832 backtrace_args_no = 0;
1834 record_elems = common_args_nr + tasks_args_nr +
1835 power_args_nr + old_power_args_nr + backtrace_args_no;
1837 rec_argc = record_elems + argc;
1838 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1840 if (rec_argv == NULL)
1844 for (i = 0; i < common_args_nr; i++)
1845 *p++ = strdup(common_args[i]);
1847 for (i = 0; i < backtrace_args_no; i++)
1848 *p++ = strdup(backtrace_args[i]);
1850 for (i = 0; i < tasks_args_nr; i++)
1851 *p++ = strdup(tasks_args[i]);
1853 for (i = 0; i < power_args_nr; i++)
1854 *p++ = strdup(power_args[i]);
1856 for (i = 0; i < old_power_args_nr; i++)
1857 *p++ = strdup(old_power_args[i]);
1859 for (j = 0; j < (unsigned int)argc; j++)
1862 return cmd_record(rec_argc, rec_argv);
1866 parse_process(const struct option *opt __maybe_unused, const char *arg,
1867 int __maybe_unused unset)
1870 add_process_filter(arg);
1875 parse_highlight(const struct option *opt __maybe_unused, const char *arg,
1876 int __maybe_unused unset)
1878 unsigned long duration = strtoul(arg, NULL, 0);
1880 if (svg_highlight || svg_highlight_name)
1884 svg_highlight = duration;
1886 svg_highlight_name = strdup(arg);
1892 parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
1895 u64 *value = opt->value;
1897 if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
1900 *value *= NSEC_PER_MSEC;
1903 *value *= NSEC_PER_USEC;
1915 int cmd_timechart(int argc, const char **argv)
1917 struct timechart tchart = {
1919 .comm = process_comm_event,
1920 .fork = process_fork_event,
1921 .exit = process_exit_event,
1922 .sample = process_sample_event,
1923 .ordered_events = true,
1926 .min_time = NSEC_PER_MSEC,
1929 const char *output_name = "output.svg";
1930 const struct option timechart_common_options[] = {
1931 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1932 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only, "output processes data only"),
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.",
1942 OPT_CALLBACK('p', "process", NULL, "process",
1943 "process selector. Pass a pid or process name.",
1945 OPT_CALLBACK(0, "symfs", NULL, "directory",
1946 "Look for files with symbols relative to this directory",
1947 symbol__config_symfs),
1948 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1949 "min. number of tasks to print"),
1950 OPT_BOOLEAN('t', "topology", &tchart.topology,
1951 "sort CPUs according to topology"),
1952 OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
1953 "skip EAGAIN errors"),
1954 OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
1955 "all IO faster than min-time will visually appear longer",
1957 OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
1958 "merge events that are merge-dist us apart",
1960 OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
1961 OPT_PARENT(timechart_common_options),
1963 const char * const timechart_subcommands[] = { "record", NULL };
1964 const char *timechart_usage[] = {
1965 "perf timechart [<options>] {record}",
1968 const struct option timechart_record_options[] = {
1969 OPT_BOOLEAN('I', "io-only", &tchart.io_only,
1970 "record only IO data"),
1971 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1972 OPT_PARENT(timechart_common_options),
1974 const char * const timechart_record_usage[] = {
1975 "perf timechart record [<options>]",
1978 argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
1979 timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
1981 if (tchart.power_only && tchart.tasks_only) {
1982 pr_err("-P and -T options cannot be used at the same time.\n");
1986 if (argc && !strncmp(argv[0], "rec", 3)) {
1987 argc = parse_options(argc, argv, timechart_record_options,
1988 timechart_record_usage,
1989 PARSE_OPT_STOP_AT_NON_OPTION);
1991 if (tchart.power_only && tchart.tasks_only) {
1992 pr_err("-P and -T options cannot be used at the same time.\n");
1997 return timechart__io_record(argc, argv);
1999 return timechart__record(&tchart, argc, argv);
2001 usage_with_options(timechart_usage, timechart_options);
2005 return __cmd_timechart(&tchart, output_name);