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"
38 #include "util/string2.h"
39 #include <linux/err.h>
41 #ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE
42 FILE *open_memstream(char **ptr, size_t *sizeloc);
45 #define SUPPORT_OLD_POWER_EVENTS 1
46 #define PWR_EVENT_EXIT -1
53 struct perf_tool tool;
54 struct per_pid *all_data;
55 struct power_event *power_events;
56 struct wake_event *wake_events;
59 u64 min_freq, /* Lowest CPU frequency seen */
60 max_freq, /* Highest CPU frequency seen */
62 first_time, last_time;
68 /* IO related settings */
81 * Datastructure layout:
82 * We keep an list of "pid"s, matching the kernels notion of a task struct.
83 * Each "pid" entry, has a list of "comm"s.
84 * this is because we want to track different programs different, while
85 * exec will reuse the original pid (by design).
86 * Each comm has a list of samples that will be used to draw
102 struct per_pidcomm *all;
103 struct per_pidcomm *current;
108 struct per_pidcomm *next;
124 struct cpu_sample *samples;
125 struct io_sample *io_samples;
128 struct sample_wrapper {
129 struct sample_wrapper *next;
132 unsigned char data[];
136 #define TYPE_RUNNING 1
137 #define TYPE_WAITING 2
138 #define TYPE_BLOCKED 3
141 struct cpu_sample *next;
147 const char *backtrace;
160 struct io_sample *next;
175 struct power_event *next;
184 struct wake_event *next;
188 const char *backtrace;
191 struct process_filter {
194 struct process_filter *next;
197 static struct process_filter *process_filter;
200 static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
202 struct per_pid *cursor = tchart->all_data;
205 if (cursor->pid == pid)
207 cursor = cursor->next;
209 cursor = zalloc(sizeof(*cursor));
210 assert(cursor != NULL);
212 cursor->next = tchart->all_data;
213 tchart->all_data = cursor;
217 static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
220 struct per_pidcomm *c;
221 p = find_create_pid(tchart, pid);
224 if (c->comm && strcmp(c->comm, comm) == 0) {
229 c->comm = strdup(comm);
235 c = zalloc(sizeof(*c));
237 c->comm = strdup(comm);
243 static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
245 struct per_pid *p, *pp;
246 p = find_create_pid(tchart, pid);
247 pp = find_create_pid(tchart, ppid);
249 if (pp->current && pp->current->comm && !p->current)
250 pid_set_comm(tchart, pid, pp->current->comm);
252 p->start_time = timestamp;
253 if (p->current && !p->current->start_time) {
254 p->current->start_time = timestamp;
255 p->current->state_since = timestamp;
259 static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
262 p = find_create_pid(tchart, pid);
263 p->end_time = timestamp;
265 p->current->end_time = timestamp;
268 static void pid_put_sample(struct timechart *tchart, int pid, int type,
269 unsigned int cpu, u64 start, u64 end,
270 const char *backtrace)
273 struct per_pidcomm *c;
274 struct cpu_sample *sample;
276 p = find_create_pid(tchart, pid);
279 c = zalloc(sizeof(*c));
286 sample = zalloc(sizeof(*sample));
287 assert(sample != NULL);
288 sample->start_time = start;
289 sample->end_time = end;
291 sample->next = c->samples;
293 sample->backtrace = backtrace;
296 if (sample->type == TYPE_RUNNING && end > start && start > 0) {
297 c->total_time += (end-start);
298 p->total_time += (end-start);
301 if (c->start_time == 0 || c->start_time > start)
302 c->start_time = start;
303 if (p->start_time == 0 || p->start_time > start)
304 p->start_time = start;
307 #define MAX_CPUS 4096
309 static u64 cpus_cstate_start_times[MAX_CPUS];
310 static int cpus_cstate_state[MAX_CPUS];
311 static u64 cpus_pstate_start_times[MAX_CPUS];
312 static u64 cpus_pstate_state[MAX_CPUS];
314 static int process_comm_event(struct perf_tool *tool,
315 union perf_event *event,
316 struct perf_sample *sample __maybe_unused,
317 struct machine *machine __maybe_unused)
319 struct timechart *tchart = container_of(tool, struct timechart, tool);
320 pid_set_comm(tchart, event->comm.tid, event->comm.comm);
324 static int process_fork_event(struct perf_tool *tool,
325 union perf_event *event,
326 struct perf_sample *sample __maybe_unused,
327 struct machine *machine __maybe_unused)
329 struct timechart *tchart = container_of(tool, struct timechart, tool);
330 pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
334 static int process_exit_event(struct perf_tool *tool,
335 union perf_event *event,
336 struct perf_sample *sample __maybe_unused,
337 struct machine *machine __maybe_unused)
339 struct timechart *tchart = container_of(tool, struct timechart, tool);
340 pid_exit(tchart, event->fork.pid, event->fork.time);
344 #ifdef SUPPORT_OLD_POWER_EVENTS
345 static int use_old_power_events;
348 static void c_state_start(int cpu, u64 timestamp, int state)
350 cpus_cstate_start_times[cpu] = timestamp;
351 cpus_cstate_state[cpu] = state;
354 static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
356 struct power_event *pwr = zalloc(sizeof(*pwr));
361 pwr->state = cpus_cstate_state[cpu];
362 pwr->start_time = cpus_cstate_start_times[cpu];
363 pwr->end_time = timestamp;
366 pwr->next = tchart->power_events;
368 tchart->power_events = pwr;
371 static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
373 struct power_event *pwr;
375 if (new_freq > 8000000) /* detect invalid data */
378 pwr = zalloc(sizeof(*pwr));
382 pwr->state = cpus_pstate_state[cpu];
383 pwr->start_time = cpus_pstate_start_times[cpu];
384 pwr->end_time = timestamp;
387 pwr->next = tchart->power_events;
389 if (!pwr->start_time)
390 pwr->start_time = tchart->first_time;
392 tchart->power_events = pwr;
394 cpus_pstate_state[cpu] = new_freq;
395 cpus_pstate_start_times[cpu] = timestamp;
397 if ((u64)new_freq > tchart->max_freq)
398 tchart->max_freq = new_freq;
400 if (new_freq < tchart->min_freq || tchart->min_freq == 0)
401 tchart->min_freq = new_freq;
403 if (new_freq == tchart->max_freq - 1000)
404 tchart->turbo_frequency = tchart->max_freq;
407 static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
408 int waker, int wakee, u8 flags, const char *backtrace)
411 struct wake_event *we = zalloc(sizeof(*we));
416 we->time = timestamp;
418 we->backtrace = backtrace;
420 if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
424 we->next = tchart->wake_events;
425 tchart->wake_events = we;
426 p = find_create_pid(tchart, we->wakee);
428 if (p && p->current && p->current->state == TYPE_NONE) {
429 p->current->state_since = timestamp;
430 p->current->state = TYPE_WAITING;
432 if (p && p->current && p->current->state == TYPE_BLOCKED) {
433 pid_put_sample(tchart, p->pid, p->current->state, cpu,
434 p->current->state_since, timestamp, NULL);
435 p->current->state_since = timestamp;
436 p->current->state = TYPE_WAITING;
440 static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
441 int prev_pid, int next_pid, u64 prev_state,
442 const char *backtrace)
444 struct per_pid *p = NULL, *prev_p;
446 prev_p = find_create_pid(tchart, prev_pid);
448 p = find_create_pid(tchart, next_pid);
450 if (prev_p->current && prev_p->current->state != TYPE_NONE)
451 pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
452 prev_p->current->state_since, timestamp,
454 if (p && p->current) {
455 if (p->current->state != TYPE_NONE)
456 pid_put_sample(tchart, next_pid, p->current->state, cpu,
457 p->current->state_since, timestamp,
460 p->current->state_since = timestamp;
461 p->current->state = TYPE_RUNNING;
464 if (prev_p->current) {
465 prev_p->current->state = TYPE_NONE;
466 prev_p->current->state_since = timestamp;
468 prev_p->current->state = TYPE_BLOCKED;
470 prev_p->current->state = TYPE_WAITING;
474 static const char *cat_backtrace(union perf_event *event,
475 struct perf_sample *sample,
476 struct machine *machine)
478 struct addr_location al;
482 u8 cpumode = PERF_RECORD_MISC_USER;
483 struct addr_location tal;
484 struct ip_callchain *chain = sample->callchain;
485 FILE *f = open_memstream(&p, &p_len);
488 perror("open_memstream error");
495 if (machine__resolve(machine, &al, sample) < 0) {
496 fprintf(stderr, "problem processing %d event, skipping it.\n",
501 for (i = 0; i < chain->nr; i++) {
504 if (callchain_param.order == ORDER_CALLEE)
507 ip = chain->ips[chain->nr - i - 1];
509 if (ip >= PERF_CONTEXT_MAX) {
511 case PERF_CONTEXT_HV:
512 cpumode = PERF_RECORD_MISC_HYPERVISOR;
514 case PERF_CONTEXT_KERNEL:
515 cpumode = PERF_RECORD_MISC_KERNEL;
517 case PERF_CONTEXT_USER:
518 cpumode = PERF_RECORD_MISC_USER;
521 pr_debug("invalid callchain context: "
522 "%"PRId64"\n", (s64) ip);
525 * It seems the callchain is corrupted.
535 if (thread__find_symbol(al.thread, cpumode, ip, &tal))
536 fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name);
538 fprintf(f, "..... %016" PRIx64 "\n", ip);
541 addr_location__put(&al);
548 typedef int (*tracepoint_handler)(struct timechart *tchart,
550 struct perf_sample *sample,
551 const char *backtrace);
553 static int process_sample_event(struct perf_tool *tool,
554 union perf_event *event,
555 struct perf_sample *sample,
557 struct machine *machine)
559 struct timechart *tchart = container_of(tool, struct timechart, tool);
561 if (evsel->core.attr.sample_type & PERF_SAMPLE_TIME) {
562 if (!tchart->first_time || tchart->first_time > sample->time)
563 tchart->first_time = sample->time;
564 if (tchart->last_time < sample->time)
565 tchart->last_time = sample->time;
568 if (evsel->handler != NULL) {
569 tracepoint_handler f = evsel->handler;
570 return f(tchart, evsel, sample,
571 cat_backtrace(event, sample, machine));
578 process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
580 struct perf_sample *sample,
581 const char *backtrace __maybe_unused)
583 u32 state = evsel__intval(evsel, sample, "state");
584 u32 cpu_id = evsel__intval(evsel, sample, "cpu_id");
586 if (state == (u32)PWR_EVENT_EXIT)
587 c_state_end(tchart, cpu_id, sample->time);
589 c_state_start(cpu_id, sample->time, state);
594 process_sample_cpu_frequency(struct timechart *tchart,
596 struct perf_sample *sample,
597 const char *backtrace __maybe_unused)
599 u32 state = evsel__intval(evsel, sample, "state");
600 u32 cpu_id = evsel__intval(evsel, sample, "cpu_id");
602 p_state_change(tchart, cpu_id, sample->time, state);
607 process_sample_sched_wakeup(struct timechart *tchart,
609 struct perf_sample *sample,
610 const char *backtrace)
612 u8 flags = evsel__intval(evsel, sample, "common_flags");
613 int waker = evsel__intval(evsel, sample, "common_pid");
614 int wakee = evsel__intval(evsel, sample, "pid");
616 sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
621 process_sample_sched_switch(struct timechart *tchart,
623 struct perf_sample *sample,
624 const char *backtrace)
626 int prev_pid = evsel__intval(evsel, sample, "prev_pid");
627 int next_pid = evsel__intval(evsel, sample, "next_pid");
628 u64 prev_state = evsel__intval(evsel, sample, "prev_state");
630 sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
631 prev_state, backtrace);
635 #ifdef SUPPORT_OLD_POWER_EVENTS
637 process_sample_power_start(struct timechart *tchart __maybe_unused,
639 struct perf_sample *sample,
640 const char *backtrace __maybe_unused)
642 u64 cpu_id = evsel__intval(evsel, sample, "cpu_id");
643 u64 value = evsel__intval(evsel, sample, "value");
645 c_state_start(cpu_id, sample->time, value);
650 process_sample_power_end(struct timechart *tchart,
651 struct evsel *evsel __maybe_unused,
652 struct perf_sample *sample,
653 const char *backtrace __maybe_unused)
655 c_state_end(tchart, sample->cpu, sample->time);
660 process_sample_power_frequency(struct timechart *tchart,
662 struct perf_sample *sample,
663 const char *backtrace __maybe_unused)
665 u64 cpu_id = evsel__intval(evsel, sample, "cpu_id");
666 u64 value = evsel__intval(evsel, sample, "value");
668 p_state_change(tchart, cpu_id, sample->time, value);
671 #endif /* SUPPORT_OLD_POWER_EVENTS */
674 * After the last sample we need to wrap up the current C/P state
675 * and close out each CPU for these.
677 static void end_sample_processing(struct timechart *tchart)
680 struct power_event *pwr;
682 for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
685 pwr = zalloc(sizeof(*pwr));
689 pwr->state = cpus_cstate_state[cpu];
690 pwr->start_time = cpus_cstate_start_times[cpu];
691 pwr->end_time = tchart->last_time;
694 pwr->next = tchart->power_events;
696 tchart->power_events = pwr;
700 pwr = zalloc(sizeof(*pwr));
704 pwr->state = cpus_pstate_state[cpu];
705 pwr->start_time = cpus_pstate_start_times[cpu];
706 pwr->end_time = tchart->last_time;
709 pwr->next = tchart->power_events;
711 if (!pwr->start_time)
712 pwr->start_time = tchart->first_time;
714 pwr->state = tchart->min_freq;
715 tchart->power_events = pwr;
719 static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
722 struct per_pid *p = find_create_pid(tchart, pid);
723 struct per_pidcomm *c = p->current;
724 struct io_sample *sample;
725 struct io_sample *prev;
728 c = zalloc(sizeof(*c));
736 prev = c->io_samples;
738 if (prev && prev->start_time && !prev->end_time) {
739 pr_warning("Skip invalid start event: "
740 "previous event already started!\n");
742 /* remove previous event that has been started,
743 * we are not sure we will ever get an end for it */
744 c->io_samples = prev->next;
749 sample = zalloc(sizeof(*sample));
752 sample->start_time = start;
755 sample->next = c->io_samples;
756 c->io_samples = sample;
758 if (c->start_time == 0 || c->start_time > start)
759 c->start_time = start;
764 static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
767 struct per_pid *p = find_create_pid(tchart, pid);
768 struct per_pidcomm *c = p->current;
769 struct io_sample *sample, *prev;
772 pr_warning("Invalid pidcomm!\n");
776 sample = c->io_samples;
778 if (!sample) /* skip partially captured events */
781 if (sample->end_time) {
782 pr_warning("Skip invalid end event: "
783 "previous event already ended!\n");
787 if (sample->type != type) {
788 pr_warning("Skip invalid end event: invalid event type!\n");
792 sample->end_time = end;
795 /* we want to be able to see small and fast transfers, so make them
796 * at least min_time long, but don't overlap them */
797 if (sample->end_time - sample->start_time < tchart->min_time)
798 sample->end_time = sample->start_time + tchart->min_time;
799 if (prev && sample->start_time < prev->end_time) {
800 if (prev->err) /* try to make errors more visible */
801 sample->start_time = prev->end_time;
803 prev->end_time = sample->start_time;
808 } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
809 type == IOTYPE_TX || type == IOTYPE_RX) {
811 if ((u64)ret > c->max_bytes)
814 c->total_bytes += ret;
815 p->total_bytes += ret;
819 /* merge two requests to make svg smaller and render-friendly */
821 prev->type == sample->type &&
822 prev->err == sample->err &&
823 prev->fd == sample->fd &&
824 prev->end_time + tchart->merge_dist >= sample->start_time) {
826 sample->bytes += prev->bytes;
827 sample->merges += prev->merges + 1;
829 sample->start_time = prev->start_time;
830 sample->next = prev->next;
833 if (!sample->err && sample->bytes > c->max_bytes)
834 c->max_bytes = sample->bytes;
843 process_enter_read(struct timechart *tchart,
845 struct perf_sample *sample)
847 long fd = evsel__intval(evsel, sample, "fd");
848 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
853 process_exit_read(struct timechart *tchart,
855 struct perf_sample *sample)
857 long ret = evsel__intval(evsel, sample, "ret");
858 return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
863 process_enter_write(struct timechart *tchart,
865 struct perf_sample *sample)
867 long fd = evsel__intval(evsel, sample, "fd");
868 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
873 process_exit_write(struct timechart *tchart,
875 struct perf_sample *sample)
877 long ret = evsel__intval(evsel, sample, "ret");
878 return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
883 process_enter_sync(struct timechart *tchart,
885 struct perf_sample *sample)
887 long fd = evsel__intval(evsel, sample, "fd");
888 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
893 process_exit_sync(struct timechart *tchart,
895 struct perf_sample *sample)
897 long ret = evsel__intval(evsel, sample, "ret");
898 return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
903 process_enter_tx(struct timechart *tchart,
905 struct perf_sample *sample)
907 long fd = evsel__intval(evsel, sample, "fd");
908 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
913 process_exit_tx(struct timechart *tchart,
915 struct perf_sample *sample)
917 long ret = evsel__intval(evsel, sample, "ret");
918 return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
923 process_enter_rx(struct timechart *tchart,
925 struct perf_sample *sample)
927 long fd = evsel__intval(evsel, sample, "fd");
928 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
933 process_exit_rx(struct timechart *tchart,
935 struct perf_sample *sample)
937 long ret = evsel__intval(evsel, sample, "ret");
938 return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
943 process_enter_poll(struct timechart *tchart,
945 struct perf_sample *sample)
947 long fd = evsel__intval(evsel, sample, "fd");
948 return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
953 process_exit_poll(struct timechart *tchart,
955 struct perf_sample *sample)
957 long ret = evsel__intval(evsel, sample, "ret");
958 return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
963 * Sort the pid datastructure
965 static void sort_pids(struct timechart *tchart)
967 struct per_pid *new_list, *p, *cursor, *prev;
968 /* sort by ppid first, then by pid, lowest to highest */
972 while (tchart->all_data) {
973 p = tchart->all_data;
974 tchart->all_data = p->next;
977 if (new_list == NULL) {
985 if (cursor->ppid > p->ppid ||
986 (cursor->ppid == p->ppid && cursor->pid > p->pid)) {
987 /* must insert before */
989 p->next = prev->next;
1002 cursor = cursor->next;
1007 tchart->all_data = new_list;
1011 static void draw_c_p_states(struct timechart *tchart)
1013 struct power_event *pwr;
1014 pwr = tchart->power_events;
1017 * two pass drawing so that the P state bars are on top of the C state blocks
1020 if (pwr->type == CSTATE)
1021 svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1025 pwr = tchart->power_events;
1027 if (pwr->type == PSTATE) {
1029 pwr->state = tchart->min_freq;
1030 svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
1036 static void draw_wakeups(struct timechart *tchart)
1038 struct wake_event *we;
1040 struct per_pidcomm *c;
1042 we = tchart->wake_events;
1044 int from = 0, to = 0;
1045 char *task_from = NULL, *task_to = NULL;
1047 /* locate the column of the waker and wakee */
1048 p = tchart->all_data;
1050 if (p->pid == we->waker || p->pid == we->wakee) {
1053 if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
1054 if (p->pid == we->waker && !from) {
1056 task_from = strdup(c->comm);
1058 if (p->pid == we->wakee && !to) {
1060 task_to = strdup(c->comm);
1067 if (p->pid == we->waker && !from) {
1069 task_from = strdup(c->comm);
1071 if (p->pid == we->wakee && !to) {
1073 task_to = strdup(c->comm);
1082 task_from = malloc(40);
1083 sprintf(task_from, "[%i]", we->waker);
1086 task_to = malloc(40);
1087 sprintf(task_to, "[%i]", we->wakee);
1090 if (we->waker == -1)
1091 svg_interrupt(we->time, to, we->backtrace);
1092 else if (from && to && abs(from - to) == 1)
1093 svg_wakeline(we->time, from, to, we->backtrace);
1095 svg_partial_wakeline(we->time, from, task_from, to,
1096 task_to, we->backtrace);
1104 static void draw_cpu_usage(struct timechart *tchart)
1107 struct per_pidcomm *c;
1108 struct cpu_sample *sample;
1109 p = tchart->all_data;
1113 sample = c->samples;
1115 if (sample->type == TYPE_RUNNING) {
1116 svg_process(sample->cpu,
1124 sample = sample->next;
1132 static void draw_io_bars(struct timechart *tchart)
1138 struct per_pidcomm *c;
1139 struct io_sample *sample;
1142 p = tchart->all_data;
1152 svg_box(Y, c->start_time, c->end_time, "process3");
1153 sample = c->io_samples;
1154 for (sample = c->io_samples; sample; sample = sample->next) {
1155 double h = (double)sample->bytes / c->max_bytes;
1157 if (tchart->skip_eagain &&
1158 sample->err == -EAGAIN)
1164 if (sample->type == IOTYPE_SYNC)
1169 sample->err ? "error" : "sync",
1173 else if (sample->type == IOTYPE_POLL)
1178 sample->err ? "error" : "poll",
1182 else if (sample->type == IOTYPE_READ)
1187 sample->err ? "error" : "disk",
1191 else if (sample->type == IOTYPE_WRITE)
1196 sample->err ? "error" : "disk",
1200 else if (sample->type == IOTYPE_RX)
1205 sample->err ? "error" : "net",
1209 else if (sample->type == IOTYPE_TX)
1214 sample->err ? "error" : "net",
1221 bytes = c->total_bytes;
1223 bytes = bytes / 1024;
1227 bytes = bytes / 1024;
1231 bytes = bytes / 1024;
1236 sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
1237 svg_text(Y, c->start_time, comm);
1247 static void draw_process_bars(struct timechart *tchart)
1250 struct per_pidcomm *c;
1251 struct cpu_sample *sample;
1254 Y = 2 * tchart->numcpus + 2;
1256 p = tchart->all_data;
1266 svg_box(Y, c->start_time, c->end_time, "process");
1267 sample = c->samples;
1269 if (sample->type == TYPE_RUNNING)
1270 svg_running(Y, sample->cpu,
1274 if (sample->type == TYPE_BLOCKED)
1275 svg_blocked(Y, sample->cpu,
1279 if (sample->type == TYPE_WAITING)
1280 svg_waiting(Y, sample->cpu,
1284 sample = sample->next;
1289 if (c->total_time > 5000000000) /* 5 seconds */
1290 sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / (double)NSEC_PER_SEC);
1292 sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC);
1294 svg_text(Y, c->start_time, comm);
1304 static void add_process_filter(const char *string)
1306 int pid = strtoull(string, NULL, 10);
1307 struct process_filter *filt = malloc(sizeof(*filt));
1312 filt->name = strdup(string);
1314 filt->next = process_filter;
1316 process_filter = filt;
1319 static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
1321 struct process_filter *filt;
1322 if (!process_filter)
1325 filt = process_filter;
1327 if (filt->pid && p->pid == filt->pid)
1329 if (strcmp(filt->name, c->comm) == 0)
1336 static int determine_display_tasks_filtered(struct timechart *tchart)
1339 struct per_pidcomm *c;
1342 p = tchart->all_data;
1345 if (p->start_time == 1)
1346 p->start_time = tchart->first_time;
1348 /* no exit marker, task kept running to the end */
1349 if (p->end_time == 0)
1350 p->end_time = tchart->last_time;
1357 if (c->start_time == 1)
1358 c->start_time = tchart->first_time;
1360 if (passes_filter(p, c)) {
1366 if (c->end_time == 0)
1367 c->end_time = tchart->last_time;
1376 static int determine_display_tasks(struct timechart *tchart, u64 threshold)
1379 struct per_pidcomm *c;
1382 p = tchart->all_data;
1385 if (p->start_time == 1)
1386 p->start_time = tchart->first_time;
1388 /* no exit marker, task kept running to the end */
1389 if (p->end_time == 0)
1390 p->end_time = tchart->last_time;
1391 if (p->total_time >= threshold)
1399 if (c->start_time == 1)
1400 c->start_time = tchart->first_time;
1402 if (c->total_time >= threshold) {
1407 if (c->end_time == 0)
1408 c->end_time = tchart->last_time;
1417 static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
1420 struct per_pidcomm *c;
1423 p = timechart->all_data;
1425 /* no exit marker, task kept running to the end */
1426 if (p->end_time == 0)
1427 p->end_time = timechart->last_time;
1434 if (c->total_bytes >= threshold) {
1439 if (c->end_time == 0)
1440 c->end_time = timechart->last_time;
1449 #define BYTES_THRESH (1 * 1024 * 1024)
1450 #define TIME_THRESH 10000000
1452 static void write_svg_file(struct timechart *tchart, const char *filename)
1456 int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
1458 if (tchart->power_only)
1459 tchart->proc_num = 0;
1461 /* We'd like to show at least proc_num tasks;
1462 * be less picky if we have fewer */
1465 count = determine_display_tasks_filtered(tchart);
1466 else if (tchart->io_events)
1467 count = determine_display_io_tasks(tchart, thresh);
1469 count = determine_display_tasks(tchart, thresh);
1471 } while (!process_filter && thresh && count < tchart->proc_num);
1473 if (!tchart->proc_num)
1476 if (tchart->io_events) {
1477 open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
1482 draw_io_bars(tchart);
1484 open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
1490 for (i = 0; i < tchart->numcpus; i++)
1491 svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
1493 draw_cpu_usage(tchart);
1494 if (tchart->proc_num)
1495 draw_process_bars(tchart);
1496 if (!tchart->tasks_only)
1497 draw_c_p_states(tchart);
1498 if (tchart->proc_num)
1499 draw_wakeups(tchart);
1505 static int process_header(struct perf_file_section *section __maybe_unused,
1506 struct perf_header *ph,
1508 int fd __maybe_unused,
1511 struct timechart *tchart = data;
1515 tchart->numcpus = ph->env.nr_cpus_avail;
1518 case HEADER_CPU_TOPOLOGY:
1519 if (!tchart->topology)
1522 if (svg_build_topology_map(&ph->env))
1523 fprintf(stderr, "problem building topology\n");
1533 static int __cmd_timechart(struct timechart *tchart, const char *output_name)
1535 const struct evsel_str_handler power_tracepoints[] = {
1536 { "power:cpu_idle", process_sample_cpu_idle },
1537 { "power:cpu_frequency", process_sample_cpu_frequency },
1538 { "sched:sched_wakeup", process_sample_sched_wakeup },
1539 { "sched:sched_switch", process_sample_sched_switch },
1540 #ifdef SUPPORT_OLD_POWER_EVENTS
1541 { "power:power_start", process_sample_power_start },
1542 { "power:power_end", process_sample_power_end },
1543 { "power:power_frequency", process_sample_power_frequency },
1546 { "syscalls:sys_enter_read", process_enter_read },
1547 { "syscalls:sys_enter_pread64", process_enter_read },
1548 { "syscalls:sys_enter_readv", process_enter_read },
1549 { "syscalls:sys_enter_preadv", process_enter_read },
1550 { "syscalls:sys_enter_write", process_enter_write },
1551 { "syscalls:sys_enter_pwrite64", process_enter_write },
1552 { "syscalls:sys_enter_writev", process_enter_write },
1553 { "syscalls:sys_enter_pwritev", process_enter_write },
1554 { "syscalls:sys_enter_sync", process_enter_sync },
1555 { "syscalls:sys_enter_sync_file_range", process_enter_sync },
1556 { "syscalls:sys_enter_fsync", process_enter_sync },
1557 { "syscalls:sys_enter_msync", process_enter_sync },
1558 { "syscalls:sys_enter_recvfrom", process_enter_rx },
1559 { "syscalls:sys_enter_recvmmsg", process_enter_rx },
1560 { "syscalls:sys_enter_recvmsg", process_enter_rx },
1561 { "syscalls:sys_enter_sendto", process_enter_tx },
1562 { "syscalls:sys_enter_sendmsg", process_enter_tx },
1563 { "syscalls:sys_enter_sendmmsg", process_enter_tx },
1564 { "syscalls:sys_enter_epoll_pwait", process_enter_poll },
1565 { "syscalls:sys_enter_epoll_wait", process_enter_poll },
1566 { "syscalls:sys_enter_poll", process_enter_poll },
1567 { "syscalls:sys_enter_ppoll", process_enter_poll },
1568 { "syscalls:sys_enter_pselect6", process_enter_poll },
1569 { "syscalls:sys_enter_select", process_enter_poll },
1571 { "syscalls:sys_exit_read", process_exit_read },
1572 { "syscalls:sys_exit_pread64", process_exit_read },
1573 { "syscalls:sys_exit_readv", process_exit_read },
1574 { "syscalls:sys_exit_preadv", process_exit_read },
1575 { "syscalls:sys_exit_write", process_exit_write },
1576 { "syscalls:sys_exit_pwrite64", process_exit_write },
1577 { "syscalls:sys_exit_writev", process_exit_write },
1578 { "syscalls:sys_exit_pwritev", process_exit_write },
1579 { "syscalls:sys_exit_sync", process_exit_sync },
1580 { "syscalls:sys_exit_sync_file_range", process_exit_sync },
1581 { "syscalls:sys_exit_fsync", process_exit_sync },
1582 { "syscalls:sys_exit_msync", process_exit_sync },
1583 { "syscalls:sys_exit_recvfrom", process_exit_rx },
1584 { "syscalls:sys_exit_recvmmsg", process_exit_rx },
1585 { "syscalls:sys_exit_recvmsg", process_exit_rx },
1586 { "syscalls:sys_exit_sendto", process_exit_tx },
1587 { "syscalls:sys_exit_sendmsg", process_exit_tx },
1588 { "syscalls:sys_exit_sendmmsg", process_exit_tx },
1589 { "syscalls:sys_exit_epoll_pwait", process_exit_poll },
1590 { "syscalls:sys_exit_epoll_wait", process_exit_poll },
1591 { "syscalls:sys_exit_poll", process_exit_poll },
1592 { "syscalls:sys_exit_ppoll", process_exit_poll },
1593 { "syscalls:sys_exit_pselect6", process_exit_poll },
1594 { "syscalls:sys_exit_select", process_exit_poll },
1596 struct perf_data data = {
1598 .mode = PERF_DATA_MODE_READ,
1599 .force = tchart->force,
1602 struct perf_session *session = perf_session__new(&data, &tchart->tool);
1605 if (IS_ERR(session))
1606 return PTR_ERR(session);
1608 symbol__init(&session->header.env);
1610 (void)perf_header__process_sections(&session->header,
1611 perf_data__fd(session->data),
1615 if (!perf_session__has_traces(session, "timechart record"))
1618 if (perf_session__set_tracepoints_handlers(session,
1619 power_tracepoints)) {
1620 pr_err("Initializing session tracepoint handlers failed\n");
1624 ret = perf_session__process_events(session);
1628 end_sample_processing(tchart);
1632 write_svg_file(tchart, output_name);
1634 pr_info("Written %2.1f seconds of trace to %s.\n",
1635 (tchart->last_time - tchart->first_time) / (double)NSEC_PER_SEC, output_name);
1637 perf_session__delete(session);
1641 static int timechart__io_record(int argc, const char **argv)
1643 unsigned int rec_argc, i;
1644 const char **rec_argv;
1646 char *filter = NULL;
1648 const char * const common_args[] = {
1649 "record", "-a", "-R", "-c", "1",
1651 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1653 const char * const disk_events[] = {
1654 "syscalls:sys_enter_read",
1655 "syscalls:sys_enter_pread64",
1656 "syscalls:sys_enter_readv",
1657 "syscalls:sys_enter_preadv",
1658 "syscalls:sys_enter_write",
1659 "syscalls:sys_enter_pwrite64",
1660 "syscalls:sys_enter_writev",
1661 "syscalls:sys_enter_pwritev",
1662 "syscalls:sys_enter_sync",
1663 "syscalls:sys_enter_sync_file_range",
1664 "syscalls:sys_enter_fsync",
1665 "syscalls:sys_enter_msync",
1667 "syscalls:sys_exit_read",
1668 "syscalls:sys_exit_pread64",
1669 "syscalls:sys_exit_readv",
1670 "syscalls:sys_exit_preadv",
1671 "syscalls:sys_exit_write",
1672 "syscalls:sys_exit_pwrite64",
1673 "syscalls:sys_exit_writev",
1674 "syscalls:sys_exit_pwritev",
1675 "syscalls:sys_exit_sync",
1676 "syscalls:sys_exit_sync_file_range",
1677 "syscalls:sys_exit_fsync",
1678 "syscalls:sys_exit_msync",
1680 unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
1682 const char * const net_events[] = {
1683 "syscalls:sys_enter_recvfrom",
1684 "syscalls:sys_enter_recvmmsg",
1685 "syscalls:sys_enter_recvmsg",
1686 "syscalls:sys_enter_sendto",
1687 "syscalls:sys_enter_sendmsg",
1688 "syscalls:sys_enter_sendmmsg",
1690 "syscalls:sys_exit_recvfrom",
1691 "syscalls:sys_exit_recvmmsg",
1692 "syscalls:sys_exit_recvmsg",
1693 "syscalls:sys_exit_sendto",
1694 "syscalls:sys_exit_sendmsg",
1695 "syscalls:sys_exit_sendmmsg",
1697 unsigned int net_events_nr = ARRAY_SIZE(net_events);
1699 const char * const poll_events[] = {
1700 "syscalls:sys_enter_epoll_pwait",
1701 "syscalls:sys_enter_epoll_wait",
1702 "syscalls:sys_enter_poll",
1703 "syscalls:sys_enter_ppoll",
1704 "syscalls:sys_enter_pselect6",
1705 "syscalls:sys_enter_select",
1707 "syscalls:sys_exit_epoll_pwait",
1708 "syscalls:sys_exit_epoll_wait",
1709 "syscalls:sys_exit_poll",
1710 "syscalls:sys_exit_ppoll",
1711 "syscalls:sys_exit_pselect6",
1712 "syscalls:sys_exit_select",
1714 unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
1716 rec_argc = common_args_nr +
1717 disk_events_nr * 4 +
1719 poll_events_nr * 4 +
1721 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1723 if (rec_argv == NULL)
1726 if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
1732 for (i = 0; i < common_args_nr; i++)
1733 *p++ = strdup(common_args[i]);
1735 for (i = 0; i < disk_events_nr; i++) {
1736 if (!is_valid_tracepoint(disk_events[i])) {
1742 *p++ = strdup(disk_events[i]);
1746 for (i = 0; i < net_events_nr; i++) {
1747 if (!is_valid_tracepoint(net_events[i])) {
1753 *p++ = strdup(net_events[i]);
1757 for (i = 0; i < poll_events_nr; i++) {
1758 if (!is_valid_tracepoint(poll_events[i])) {
1764 *p++ = strdup(poll_events[i]);
1769 for (i = 0; i < (unsigned int)argc; i++)
1772 return cmd_record(rec_argc, rec_argv);
1776 static int timechart__record(struct timechart *tchart, int argc, const char **argv)
1778 unsigned int rec_argc, i, j;
1779 const char **rec_argv;
1781 unsigned int record_elems;
1783 const char * const common_args[] = {
1784 "record", "-a", "-R", "-c", "1",
1786 unsigned int common_args_nr = ARRAY_SIZE(common_args);
1788 const char * const backtrace_args[] = {
1791 unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
1793 const char * const power_args[] = {
1794 "-e", "power:cpu_frequency",
1795 "-e", "power:cpu_idle",
1797 unsigned int power_args_nr = ARRAY_SIZE(power_args);
1799 const char * const old_power_args[] = {
1800 #ifdef SUPPORT_OLD_POWER_EVENTS
1801 "-e", "power:power_start",
1802 "-e", "power:power_end",
1803 "-e", "power:power_frequency",
1806 unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
1808 const char * const tasks_args[] = {
1809 "-e", "sched:sched_wakeup",
1810 "-e", "sched:sched_switch",
1812 unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
1814 #ifdef SUPPORT_OLD_POWER_EVENTS
1815 if (!is_valid_tracepoint("power:cpu_idle") &&
1816 is_valid_tracepoint("power:power_start")) {
1817 use_old_power_events = 1;
1820 old_power_args_nr = 0;
1824 if (tchart->power_only)
1827 if (tchart->tasks_only) {
1829 old_power_args_nr = 0;
1832 if (!tchart->with_backtrace)
1833 backtrace_args_no = 0;
1835 record_elems = common_args_nr + tasks_args_nr +
1836 power_args_nr + old_power_args_nr + backtrace_args_no;
1838 rec_argc = record_elems + argc;
1839 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1841 if (rec_argv == NULL)
1845 for (i = 0; i < common_args_nr; i++)
1846 *p++ = strdup(common_args[i]);
1848 for (i = 0; i < backtrace_args_no; i++)
1849 *p++ = strdup(backtrace_args[i]);
1851 for (i = 0; i < tasks_args_nr; i++)
1852 *p++ = strdup(tasks_args[i]);
1854 for (i = 0; i < power_args_nr; i++)
1855 *p++ = strdup(power_args[i]);
1857 for (i = 0; i < old_power_args_nr; i++)
1858 *p++ = strdup(old_power_args[i]);
1860 for (j = 0; j < (unsigned int)argc; j++)
1863 return cmd_record(rec_argc, rec_argv);
1867 parse_process(const struct option *opt __maybe_unused, const char *arg,
1868 int __maybe_unused unset)
1871 add_process_filter(arg);
1876 parse_highlight(const struct option *opt __maybe_unused, const char *arg,
1877 int __maybe_unused unset)
1879 unsigned long duration = strtoul(arg, NULL, 0);
1881 if (svg_highlight || svg_highlight_name)
1885 svg_highlight = duration;
1887 svg_highlight_name = strdup(arg);
1893 parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
1896 u64 *value = opt->value;
1898 if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
1901 *value *= NSEC_PER_MSEC;
1904 *value *= NSEC_PER_USEC;
1916 int cmd_timechart(int argc, const char **argv)
1918 struct timechart tchart = {
1920 .comm = process_comm_event,
1921 .fork = process_fork_event,
1922 .exit = process_exit_event,
1923 .sample = process_sample_event,
1924 .ordered_events = true,
1927 .min_time = NSEC_PER_MSEC,
1930 const char *output_name = "output.svg";
1931 const struct option timechart_common_options[] = {
1932 OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
1933 OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only, "output processes data only"),
1936 const struct option timechart_options[] = {
1937 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1938 OPT_STRING('o', "output", &output_name, "file", "output file name"),
1939 OPT_INTEGER('w', "width", &svg_page_width, "page width"),
1940 OPT_CALLBACK(0, "highlight", NULL, "duration or task name",
1941 "highlight tasks. Pass duration in ns or process name.",
1943 OPT_CALLBACK('p', "process", NULL, "process",
1944 "process selector. Pass a pid or process name.",
1946 OPT_CALLBACK(0, "symfs", NULL, "directory",
1947 "Look for files with symbols relative to this directory",
1948 symbol__config_symfs),
1949 OPT_INTEGER('n', "proc-num", &tchart.proc_num,
1950 "min. number of tasks to print"),
1951 OPT_BOOLEAN('t', "topology", &tchart.topology,
1952 "sort CPUs according to topology"),
1953 OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
1954 "skip EAGAIN errors"),
1955 OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
1956 "all IO faster than min-time will visually appear longer",
1958 OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
1959 "merge events that are merge-dist us apart",
1961 OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
1962 OPT_PARENT(timechart_common_options),
1964 const char * const timechart_subcommands[] = { "record", NULL };
1965 const char *timechart_usage[] = {
1966 "perf timechart [<options>] {record}",
1969 const struct option timechart_record_options[] = {
1970 OPT_BOOLEAN('I', "io-only", &tchart.io_only,
1971 "record only IO data"),
1972 OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
1973 OPT_PARENT(timechart_common_options),
1975 const char * const timechart_record_usage[] = {
1976 "perf timechart record [<options>]",
1979 argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
1980 timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
1982 if (tchart.power_only && tchart.tasks_only) {
1983 pr_err("-P and -T options cannot be used at the same time.\n");
1987 if (argc && strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
1988 argc = parse_options(argc, argv, timechart_record_options,
1989 timechart_record_usage,
1990 PARSE_OPT_STOP_AT_NON_OPTION);
1992 if (tchart.power_only && tchart.tasks_only) {
1993 pr_err("-P and -T options cannot be used at the same time.\n");
1998 return timechart__io_record(argc, argv);
2000 return timechart__record(&tchart, argc, argv);
2002 usage_with_options(timechart_usage, timechart_options);
2006 return __cmd_timechart(&tchart, output_name);