mirror of https://gitee.com/openkylin/linux.git
1288 lines
29 KiB
C
1288 lines
29 KiB
C
/*
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* builtin-timechart.c - make an svg timechart of system activity
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*
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* (C) Copyright 2009 Intel Corporation
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*
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* Authors:
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* Arjan van de Ven <arjan@linux.intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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#include <traceevent/event-parse.h>
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#include "builtin.h"
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#include "util/util.h"
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#include "util/color.h"
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#include <linux/list.h>
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#include "util/cache.h"
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#include "util/evlist.h"
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#include "util/evsel.h"
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#include <linux/rbtree.h>
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#include "util/symbol.h"
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#include "util/callchain.h"
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#include "util/strlist.h"
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#include "perf.h"
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#include "util/header.h"
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#include "util/parse-options.h"
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#include "util/parse-events.h"
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#include "util/event.h"
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#include "util/session.h"
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#include "util/svghelper.h"
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#include "util/tool.h"
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#include "util/data.h"
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#define SUPPORT_OLD_POWER_EVENTS 1
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#define PWR_EVENT_EXIT -1
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struct per_pid;
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struct power_event;
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struct wake_event;
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struct timechart {
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struct perf_tool tool;
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struct per_pid *all_data;
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struct power_event *power_events;
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struct wake_event *wake_events;
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int proc_num;
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unsigned int numcpus;
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u64 min_freq, /* Lowest CPU frequency seen */
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max_freq, /* Highest CPU frequency seen */
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turbo_frequency,
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first_time, last_time;
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bool power_only,
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tasks_only,
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with_backtrace;
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};
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struct per_pidcomm;
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struct cpu_sample;
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/*
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* Datastructure layout:
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* We keep an list of "pid"s, matching the kernels notion of a task struct.
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* Each "pid" entry, has a list of "comm"s.
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* this is because we want to track different programs different, while
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* exec will reuse the original pid (by design).
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* Each comm has a list of samples that will be used to draw
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* final graph.
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*/
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struct per_pid {
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struct per_pid *next;
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int pid;
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int ppid;
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u64 start_time;
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u64 end_time;
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u64 total_time;
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int display;
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struct per_pidcomm *all;
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struct per_pidcomm *current;
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};
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struct per_pidcomm {
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struct per_pidcomm *next;
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u64 start_time;
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u64 end_time;
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u64 total_time;
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int Y;
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int display;
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long state;
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u64 state_since;
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char *comm;
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struct cpu_sample *samples;
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};
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struct sample_wrapper {
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struct sample_wrapper *next;
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u64 timestamp;
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unsigned char data[0];
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};
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#define TYPE_NONE 0
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#define TYPE_RUNNING 1
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#define TYPE_WAITING 2
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#define TYPE_BLOCKED 3
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struct cpu_sample {
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struct cpu_sample *next;
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u64 start_time;
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u64 end_time;
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int type;
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int cpu;
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const char *backtrace;
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};
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#define CSTATE 1
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#define PSTATE 2
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struct power_event {
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struct power_event *next;
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int type;
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int state;
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u64 start_time;
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u64 end_time;
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int cpu;
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};
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struct wake_event {
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struct wake_event *next;
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int waker;
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int wakee;
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u64 time;
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const char *backtrace;
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};
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struct process_filter {
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char *name;
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int pid;
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struct process_filter *next;
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};
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static struct process_filter *process_filter;
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static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
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{
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struct per_pid *cursor = tchart->all_data;
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while (cursor) {
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if (cursor->pid == pid)
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return cursor;
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cursor = cursor->next;
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}
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cursor = zalloc(sizeof(*cursor));
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assert(cursor != NULL);
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cursor->pid = pid;
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cursor->next = tchart->all_data;
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tchart->all_data = cursor;
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return cursor;
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}
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static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
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{
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struct per_pid *p;
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struct per_pidcomm *c;
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p = find_create_pid(tchart, pid);
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c = p->all;
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while (c) {
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if (c->comm && strcmp(c->comm, comm) == 0) {
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p->current = c;
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return;
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}
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if (!c->comm) {
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c->comm = strdup(comm);
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p->current = c;
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return;
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}
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c = c->next;
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}
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c = zalloc(sizeof(*c));
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assert(c != NULL);
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c->comm = strdup(comm);
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p->current = c;
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c->next = p->all;
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p->all = c;
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}
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static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
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{
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struct per_pid *p, *pp;
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p = find_create_pid(tchart, pid);
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pp = find_create_pid(tchart, ppid);
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p->ppid = ppid;
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if (pp->current && pp->current->comm && !p->current)
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pid_set_comm(tchart, pid, pp->current->comm);
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p->start_time = timestamp;
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if (p->current) {
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p->current->start_time = timestamp;
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p->current->state_since = timestamp;
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}
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}
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static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
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{
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struct per_pid *p;
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p = find_create_pid(tchart, pid);
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p->end_time = timestamp;
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if (p->current)
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p->current->end_time = timestamp;
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}
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static void pid_put_sample(struct timechart *tchart, int pid, int type,
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unsigned int cpu, u64 start, u64 end,
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const char *backtrace)
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{
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struct per_pid *p;
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struct per_pidcomm *c;
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struct cpu_sample *sample;
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p = find_create_pid(tchart, pid);
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c = p->current;
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if (!c) {
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c = zalloc(sizeof(*c));
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assert(c != NULL);
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p->current = c;
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c->next = p->all;
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p->all = c;
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}
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sample = zalloc(sizeof(*sample));
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assert(sample != NULL);
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sample->start_time = start;
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sample->end_time = end;
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sample->type = type;
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sample->next = c->samples;
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sample->cpu = cpu;
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sample->backtrace = backtrace;
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c->samples = sample;
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if (sample->type == TYPE_RUNNING && end > start && start > 0) {
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c->total_time += (end-start);
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p->total_time += (end-start);
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}
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if (c->start_time == 0 || c->start_time > start)
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c->start_time = start;
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if (p->start_time == 0 || p->start_time > start)
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p->start_time = start;
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}
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#define MAX_CPUS 4096
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static u64 cpus_cstate_start_times[MAX_CPUS];
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static int cpus_cstate_state[MAX_CPUS];
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static u64 cpus_pstate_start_times[MAX_CPUS];
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static u64 cpus_pstate_state[MAX_CPUS];
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static int process_comm_event(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct timechart *tchart = container_of(tool, struct timechart, tool);
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pid_set_comm(tchart, event->comm.tid, event->comm.comm);
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return 0;
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}
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static int process_fork_event(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct timechart *tchart = container_of(tool, struct timechart, tool);
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pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
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return 0;
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}
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static int process_exit_event(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct timechart *tchart = container_of(tool, struct timechart, tool);
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pid_exit(tchart, event->fork.pid, event->fork.time);
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return 0;
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}
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#ifdef SUPPORT_OLD_POWER_EVENTS
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static int use_old_power_events;
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#endif
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static void c_state_start(int cpu, u64 timestamp, int state)
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{
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cpus_cstate_start_times[cpu] = timestamp;
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cpus_cstate_state[cpu] = state;
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}
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static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
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{
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struct power_event *pwr = zalloc(sizeof(*pwr));
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if (!pwr)
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return;
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pwr->state = cpus_cstate_state[cpu];
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pwr->start_time = cpus_cstate_start_times[cpu];
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pwr->end_time = timestamp;
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pwr->cpu = cpu;
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pwr->type = CSTATE;
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pwr->next = tchart->power_events;
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tchart->power_events = pwr;
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}
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static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
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{
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struct power_event *pwr;
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if (new_freq > 8000000) /* detect invalid data */
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return;
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pwr = zalloc(sizeof(*pwr));
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if (!pwr)
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return;
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pwr->state = cpus_pstate_state[cpu];
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pwr->start_time = cpus_pstate_start_times[cpu];
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pwr->end_time = timestamp;
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pwr->cpu = cpu;
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pwr->type = PSTATE;
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pwr->next = tchart->power_events;
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if (!pwr->start_time)
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pwr->start_time = tchart->first_time;
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tchart->power_events = pwr;
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cpus_pstate_state[cpu] = new_freq;
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cpus_pstate_start_times[cpu] = timestamp;
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if ((u64)new_freq > tchart->max_freq)
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tchart->max_freq = new_freq;
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if (new_freq < tchart->min_freq || tchart->min_freq == 0)
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tchart->min_freq = new_freq;
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if (new_freq == tchart->max_freq - 1000)
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tchart->turbo_frequency = tchart->max_freq;
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}
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static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
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int waker, int wakee, u8 flags, const char *backtrace)
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{
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struct per_pid *p;
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struct wake_event *we = zalloc(sizeof(*we));
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if (!we)
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return;
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we->time = timestamp;
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we->waker = waker;
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we->backtrace = backtrace;
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if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
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we->waker = -1;
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we->wakee = wakee;
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we->next = tchart->wake_events;
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tchart->wake_events = we;
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p = find_create_pid(tchart, we->wakee);
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if (p && p->current && p->current->state == TYPE_NONE) {
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p->current->state_since = timestamp;
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p->current->state = TYPE_WAITING;
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}
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if (p && p->current && p->current->state == TYPE_BLOCKED) {
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pid_put_sample(tchart, p->pid, p->current->state, cpu,
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p->current->state_since, timestamp, NULL);
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p->current->state_since = timestamp;
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p->current->state = TYPE_WAITING;
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}
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}
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static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
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int prev_pid, int next_pid, u64 prev_state,
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const char *backtrace)
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{
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struct per_pid *p = NULL, *prev_p;
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prev_p = find_create_pid(tchart, prev_pid);
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p = find_create_pid(tchart, next_pid);
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if (prev_p->current && prev_p->current->state != TYPE_NONE)
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pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
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prev_p->current->state_since, timestamp,
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backtrace);
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if (p && p->current) {
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if (p->current->state != TYPE_NONE)
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pid_put_sample(tchart, next_pid, p->current->state, cpu,
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p->current->state_since, timestamp,
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backtrace);
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p->current->state_since = timestamp;
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p->current->state = TYPE_RUNNING;
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}
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if (prev_p->current) {
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prev_p->current->state = TYPE_NONE;
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prev_p->current->state_since = timestamp;
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if (prev_state & 2)
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prev_p->current->state = TYPE_BLOCKED;
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if (prev_state == 0)
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prev_p->current->state = TYPE_WAITING;
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}
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}
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static const char *cat_backtrace(union perf_event *event,
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struct perf_sample *sample,
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struct machine *machine)
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{
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struct addr_location al;
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unsigned int i;
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char *p = NULL;
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size_t p_len;
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u8 cpumode = PERF_RECORD_MISC_USER;
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struct addr_location tal;
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struct ip_callchain *chain = sample->callchain;
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FILE *f = open_memstream(&p, &p_len);
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if (!f) {
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perror("open_memstream error");
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return NULL;
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}
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if (!chain)
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goto exit;
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if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
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fprintf(stderr, "problem processing %d event, skipping it.\n",
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event->header.type);
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goto exit;
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}
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for (i = 0; i < chain->nr; i++) {
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u64 ip;
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if (callchain_param.order == ORDER_CALLEE)
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ip = chain->ips[i];
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else
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ip = chain->ips[chain->nr - i - 1];
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if (ip >= PERF_CONTEXT_MAX) {
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switch (ip) {
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case PERF_CONTEXT_HV:
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cpumode = PERF_RECORD_MISC_HYPERVISOR;
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break;
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case PERF_CONTEXT_KERNEL:
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cpumode = PERF_RECORD_MISC_KERNEL;
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break;
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case PERF_CONTEXT_USER:
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cpumode = PERF_RECORD_MISC_USER;
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break;
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default:
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pr_debug("invalid callchain context: "
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"%"PRId64"\n", (s64) ip);
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|
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/*
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* It seems the callchain is corrupted.
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* Discard all.
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*/
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free(p);
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p = NULL;
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goto exit;
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}
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continue;
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}
|
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|
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tal.filtered = false;
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thread__find_addr_location(al.thread, machine, cpumode,
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MAP__FUNCTION, ip, &tal);
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if (tal.sym)
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fprintf(f, "..... %016" PRIx64 " %s\n", ip,
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tal.sym->name);
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else
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fprintf(f, "..... %016" PRIx64 "\n", ip);
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}
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exit:
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fclose(f);
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|
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return p;
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}
|
|
|
|
typedef int (*tracepoint_handler)(struct timechart *tchart,
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struct perf_evsel *evsel,
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struct perf_sample *sample,
|
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const char *backtrace);
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|
|
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static int process_sample_event(struct perf_tool *tool,
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union perf_event *event,
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struct perf_sample *sample,
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struct perf_evsel *evsel,
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struct machine *machine)
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|
{
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struct timechart *tchart = container_of(tool, struct timechart, tool);
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|
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if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
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if (!tchart->first_time || tchart->first_time > sample->time)
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tchart->first_time = sample->time;
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if (tchart->last_time < sample->time)
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tchart->last_time = sample->time;
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}
|
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|
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if (sample->cpu > tchart->numcpus)
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tchart->numcpus = sample->cpu;
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|
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if (evsel->handler != NULL) {
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tracepoint_handler f = evsel->handler;
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return f(tchart, evsel, sample, cat_backtrace(event, sample, machine));
|
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}
|
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|
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return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace __maybe_unused)
|
|
{
|
|
u32 state = perf_evsel__intval(evsel, sample, "state");
|
|
u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
|
|
|
|
if (state == (u32)PWR_EVENT_EXIT)
|
|
c_state_end(tchart, cpu_id, sample->time);
|
|
else
|
|
c_state_start(cpu_id, sample->time, state);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_cpu_frequency(struct timechart *tchart,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace __maybe_unused)
|
|
{
|
|
u32 state = perf_evsel__intval(evsel, sample, "state");
|
|
u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
|
|
|
|
p_state_change(tchart, cpu_id, sample->time, state);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_sched_wakeup(struct timechart *tchart,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace)
|
|
{
|
|
u8 flags = perf_evsel__intval(evsel, sample, "common_flags");
|
|
int waker = perf_evsel__intval(evsel, sample, "common_pid");
|
|
int wakee = perf_evsel__intval(evsel, sample, "pid");
|
|
|
|
sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_sched_switch(struct timechart *tchart,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace)
|
|
{
|
|
int prev_pid = perf_evsel__intval(evsel, sample, "prev_pid");
|
|
int next_pid = perf_evsel__intval(evsel, sample, "next_pid");
|
|
u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state");
|
|
|
|
sched_switch(tchart, sample->cpu, sample->time, prev_pid, next_pid,
|
|
prev_state, backtrace);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef SUPPORT_OLD_POWER_EVENTS
|
|
static int
|
|
process_sample_power_start(struct timechart *tchart __maybe_unused,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace __maybe_unused)
|
|
{
|
|
u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
|
|
u64 value = perf_evsel__intval(evsel, sample, "value");
|
|
|
|
c_state_start(cpu_id, sample->time, value);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_power_end(struct timechart *tchart,
|
|
struct perf_evsel *evsel __maybe_unused,
|
|
struct perf_sample *sample,
|
|
const char *backtrace __maybe_unused)
|
|
{
|
|
c_state_end(tchart, sample->cpu, sample->time);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
process_sample_power_frequency(struct timechart *tchart,
|
|
struct perf_evsel *evsel,
|
|
struct perf_sample *sample,
|
|
const char *backtrace __maybe_unused)
|
|
{
|
|
u64 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
|
|
u64 value = perf_evsel__intval(evsel, sample, "value");
|
|
|
|
p_state_change(tchart, cpu_id, sample->time, value);
|
|
return 0;
|
|
}
|
|
#endif /* SUPPORT_OLD_POWER_EVENTS */
|
|
|
|
/*
|
|
* After the last sample we need to wrap up the current C/P state
|
|
* and close out each CPU for these.
|
|
*/
|
|
static void end_sample_processing(struct timechart *tchart)
|
|
{
|
|
u64 cpu;
|
|
struct power_event *pwr;
|
|
|
|
for (cpu = 0; cpu <= tchart->numcpus; cpu++) {
|
|
/* C state */
|
|
#if 0
|
|
pwr = zalloc(sizeof(*pwr));
|
|
if (!pwr)
|
|
return;
|
|
|
|
pwr->state = cpus_cstate_state[cpu];
|
|
pwr->start_time = cpus_cstate_start_times[cpu];
|
|
pwr->end_time = tchart->last_time;
|
|
pwr->cpu = cpu;
|
|
pwr->type = CSTATE;
|
|
pwr->next = tchart->power_events;
|
|
|
|
tchart->power_events = pwr;
|
|
#endif
|
|
/* P state */
|
|
|
|
pwr = zalloc(sizeof(*pwr));
|
|
if (!pwr)
|
|
return;
|
|
|
|
pwr->state = cpus_pstate_state[cpu];
|
|
pwr->start_time = cpus_pstate_start_times[cpu];
|
|
pwr->end_time = tchart->last_time;
|
|
pwr->cpu = cpu;
|
|
pwr->type = PSTATE;
|
|
pwr->next = tchart->power_events;
|
|
|
|
if (!pwr->start_time)
|
|
pwr->start_time = tchart->first_time;
|
|
if (!pwr->state)
|
|
pwr->state = tchart->min_freq;
|
|
tchart->power_events = pwr;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Sort the pid datastructure
|
|
*/
|
|
static void sort_pids(struct timechart *tchart)
|
|
{
|
|
struct per_pid *new_list, *p, *cursor, *prev;
|
|
/* sort by ppid first, then by pid, lowest to highest */
|
|
|
|
new_list = NULL;
|
|
|
|
while (tchart->all_data) {
|
|
p = tchart->all_data;
|
|
tchart->all_data = p->next;
|
|
p->next = NULL;
|
|
|
|
if (new_list == NULL) {
|
|
new_list = p;
|
|
p->next = NULL;
|
|
continue;
|
|
}
|
|
prev = NULL;
|
|
cursor = new_list;
|
|
while (cursor) {
|
|
if (cursor->ppid > p->ppid ||
|
|
(cursor->ppid == p->ppid && cursor->pid > p->pid)) {
|
|
/* must insert before */
|
|
if (prev) {
|
|
p->next = prev->next;
|
|
prev->next = p;
|
|
cursor = NULL;
|
|
continue;
|
|
} else {
|
|
p->next = new_list;
|
|
new_list = p;
|
|
cursor = NULL;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
prev = cursor;
|
|
cursor = cursor->next;
|
|
if (!cursor)
|
|
prev->next = p;
|
|
}
|
|
}
|
|
tchart->all_data = new_list;
|
|
}
|
|
|
|
|
|
static void draw_c_p_states(struct timechart *tchart)
|
|
{
|
|
struct power_event *pwr;
|
|
pwr = tchart->power_events;
|
|
|
|
/*
|
|
* two pass drawing so that the P state bars are on top of the C state blocks
|
|
*/
|
|
while (pwr) {
|
|
if (pwr->type == CSTATE)
|
|
svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
|
|
pwr = pwr->next;
|
|
}
|
|
|
|
pwr = tchart->power_events;
|
|
while (pwr) {
|
|
if (pwr->type == PSTATE) {
|
|
if (!pwr->state)
|
|
pwr->state = tchart->min_freq;
|
|
svg_pstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
|
|
}
|
|
pwr = pwr->next;
|
|
}
|
|
}
|
|
|
|
static void draw_wakeups(struct timechart *tchart)
|
|
{
|
|
struct wake_event *we;
|
|
struct per_pid *p;
|
|
struct per_pidcomm *c;
|
|
|
|
we = tchart->wake_events;
|
|
while (we) {
|
|
int from = 0, to = 0;
|
|
char *task_from = NULL, *task_to = NULL;
|
|
|
|
/* locate the column of the waker and wakee */
|
|
p = tchart->all_data;
|
|
while (p) {
|
|
if (p->pid == we->waker || p->pid == we->wakee) {
|
|
c = p->all;
|
|
while (c) {
|
|
if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
|
|
if (p->pid == we->waker && !from) {
|
|
from = c->Y;
|
|
task_from = strdup(c->comm);
|
|
}
|
|
if (p->pid == we->wakee && !to) {
|
|
to = c->Y;
|
|
task_to = strdup(c->comm);
|
|
}
|
|
}
|
|
c = c->next;
|
|
}
|
|
c = p->all;
|
|
while (c) {
|
|
if (p->pid == we->waker && !from) {
|
|
from = c->Y;
|
|
task_from = strdup(c->comm);
|
|
}
|
|
if (p->pid == we->wakee && !to) {
|
|
to = c->Y;
|
|
task_to = strdup(c->comm);
|
|
}
|
|
c = c->next;
|
|
}
|
|
}
|
|
p = p->next;
|
|
}
|
|
|
|
if (!task_from) {
|
|
task_from = malloc(40);
|
|
sprintf(task_from, "[%i]", we->waker);
|
|
}
|
|
if (!task_to) {
|
|
task_to = malloc(40);
|
|
sprintf(task_to, "[%i]", we->wakee);
|
|
}
|
|
|
|
if (we->waker == -1)
|
|
svg_interrupt(we->time, to, we->backtrace);
|
|
else if (from && to && abs(from - to) == 1)
|
|
svg_wakeline(we->time, from, to, we->backtrace);
|
|
else
|
|
svg_partial_wakeline(we->time, from, task_from, to,
|
|
task_to, we->backtrace);
|
|
we = we->next;
|
|
|
|
free(task_from);
|
|
free(task_to);
|
|
}
|
|
}
|
|
|
|
static void draw_cpu_usage(struct timechart *tchart)
|
|
{
|
|
struct per_pid *p;
|
|
struct per_pidcomm *c;
|
|
struct cpu_sample *sample;
|
|
p = tchart->all_data;
|
|
while (p) {
|
|
c = p->all;
|
|
while (c) {
|
|
sample = c->samples;
|
|
while (sample) {
|
|
if (sample->type == TYPE_RUNNING)
|
|
svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm);
|
|
|
|
sample = sample->next;
|
|
}
|
|
c = c->next;
|
|
}
|
|
p = p->next;
|
|
}
|
|
}
|
|
|
|
static void draw_process_bars(struct timechart *tchart)
|
|
{
|
|
struct per_pid *p;
|
|
struct per_pidcomm *c;
|
|
struct cpu_sample *sample;
|
|
int Y = 0;
|
|
|
|
Y = 2 * tchart->numcpus + 2;
|
|
|
|
p = tchart->all_data;
|
|
while (p) {
|
|
c = p->all;
|
|
while (c) {
|
|
if (!c->display) {
|
|
c->Y = 0;
|
|
c = c->next;
|
|
continue;
|
|
}
|
|
|
|
svg_box(Y, c->start_time, c->end_time, "process");
|
|
sample = c->samples;
|
|
while (sample) {
|
|
if (sample->type == TYPE_RUNNING)
|
|
svg_running(Y, sample->cpu,
|
|
sample->start_time,
|
|
sample->end_time,
|
|
sample->backtrace);
|
|
if (sample->type == TYPE_BLOCKED)
|
|
svg_blocked(Y, sample->cpu,
|
|
sample->start_time,
|
|
sample->end_time,
|
|
sample->backtrace);
|
|
if (sample->type == TYPE_WAITING)
|
|
svg_waiting(Y, sample->cpu,
|
|
sample->start_time,
|
|
sample->end_time,
|
|
sample->backtrace);
|
|
sample = sample->next;
|
|
}
|
|
|
|
if (c->comm) {
|
|
char comm[256];
|
|
if (c->total_time > 5000000000) /* 5 seconds */
|
|
sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0);
|
|
else
|
|
sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0);
|
|
|
|
svg_text(Y, c->start_time, comm);
|
|
}
|
|
c->Y = Y;
|
|
Y++;
|
|
c = c->next;
|
|
}
|
|
p = p->next;
|
|
}
|
|
}
|
|
|
|
static void add_process_filter(const char *string)
|
|
{
|
|
int pid = strtoull(string, NULL, 10);
|
|
struct process_filter *filt = malloc(sizeof(*filt));
|
|
|
|
if (!filt)
|
|
return;
|
|
|
|
filt->name = strdup(string);
|
|
filt->pid = pid;
|
|
filt->next = process_filter;
|
|
|
|
process_filter = filt;
|
|
}
|
|
|
|
static int passes_filter(struct per_pid *p, struct per_pidcomm *c)
|
|
{
|
|
struct process_filter *filt;
|
|
if (!process_filter)
|
|
return 1;
|
|
|
|
filt = process_filter;
|
|
while (filt) {
|
|
if (filt->pid && p->pid == filt->pid)
|
|
return 1;
|
|
if (strcmp(filt->name, c->comm) == 0)
|
|
return 1;
|
|
filt = filt->next;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int determine_display_tasks_filtered(struct timechart *tchart)
|
|
{
|
|
struct per_pid *p;
|
|
struct per_pidcomm *c;
|
|
int count = 0;
|
|
|
|
p = tchart->all_data;
|
|
while (p) {
|
|
p->display = 0;
|
|
if (p->start_time == 1)
|
|
p->start_time = tchart->first_time;
|
|
|
|
/* no exit marker, task kept running to the end */
|
|
if (p->end_time == 0)
|
|
p->end_time = tchart->last_time;
|
|
|
|
c = p->all;
|
|
|
|
while (c) {
|
|
c->display = 0;
|
|
|
|
if (c->start_time == 1)
|
|
c->start_time = tchart->first_time;
|
|
|
|
if (passes_filter(p, c)) {
|
|
c->display = 1;
|
|
p->display = 1;
|
|
count++;
|
|
}
|
|
|
|
if (c->end_time == 0)
|
|
c->end_time = tchart->last_time;
|
|
|
|
c = c->next;
|
|
}
|
|
p = p->next;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static int determine_display_tasks(struct timechart *tchart, u64 threshold)
|
|
{
|
|
struct per_pid *p;
|
|
struct per_pidcomm *c;
|
|
int count = 0;
|
|
|
|
if (process_filter)
|
|
return determine_display_tasks_filtered(tchart);
|
|
|
|
p = tchart->all_data;
|
|
while (p) {
|
|
p->display = 0;
|
|
if (p->start_time == 1)
|
|
p->start_time = tchart->first_time;
|
|
|
|
/* no exit marker, task kept running to the end */
|
|
if (p->end_time == 0)
|
|
p->end_time = tchart->last_time;
|
|
if (p->total_time >= threshold)
|
|
p->display = 1;
|
|
|
|
c = p->all;
|
|
|
|
while (c) {
|
|
c->display = 0;
|
|
|
|
if (c->start_time == 1)
|
|
c->start_time = tchart->first_time;
|
|
|
|
if (c->total_time >= threshold) {
|
|
c->display = 1;
|
|
count++;
|
|
}
|
|
|
|
if (c->end_time == 0)
|
|
c->end_time = tchart->last_time;
|
|
|
|
c = c->next;
|
|
}
|
|
p = p->next;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
|
|
#define TIME_THRESH 10000000
|
|
|
|
static void write_svg_file(struct timechart *tchart, const char *filename)
|
|
{
|
|
u64 i;
|
|
int count;
|
|
int thresh = TIME_THRESH;
|
|
|
|
tchart->numcpus++;
|
|
|
|
if (tchart->power_only)
|
|
tchart->proc_num = 0;
|
|
|
|
/* We'd like to show at least proc_num tasks;
|
|
* be less picky if we have fewer */
|
|
do {
|
|
count = determine_display_tasks(tchart, thresh);
|
|
thresh /= 10;
|
|
} while (!process_filter && thresh && count < tchart->proc_num);
|
|
|
|
open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
|
|
|
|
svg_time_grid();
|
|
svg_legenda();
|
|
|
|
for (i = 0; i < tchart->numcpus; i++)
|
|
svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency);
|
|
|
|
draw_cpu_usage(tchart);
|
|
if (tchart->proc_num)
|
|
draw_process_bars(tchart);
|
|
if (!tchart->tasks_only)
|
|
draw_c_p_states(tchart);
|
|
if (tchart->proc_num)
|
|
draw_wakeups(tchart);
|
|
|
|
svg_close();
|
|
}
|
|
|
|
static int __cmd_timechart(struct timechart *tchart, const char *output_name)
|
|
{
|
|
const struct perf_evsel_str_handler power_tracepoints[] = {
|
|
{ "power:cpu_idle", process_sample_cpu_idle },
|
|
{ "power:cpu_frequency", process_sample_cpu_frequency },
|
|
{ "sched:sched_wakeup", process_sample_sched_wakeup },
|
|
{ "sched:sched_switch", process_sample_sched_switch },
|
|
#ifdef SUPPORT_OLD_POWER_EVENTS
|
|
{ "power:power_start", process_sample_power_start },
|
|
{ "power:power_end", process_sample_power_end },
|
|
{ "power:power_frequency", process_sample_power_frequency },
|
|
#endif
|
|
};
|
|
struct perf_data_file file = {
|
|
.path = input_name,
|
|
.mode = PERF_DATA_MODE_READ,
|
|
};
|
|
|
|
struct perf_session *session = perf_session__new(&file, false,
|
|
&tchart->tool);
|
|
int ret = -EINVAL;
|
|
|
|
if (session == NULL)
|
|
return -ENOMEM;
|
|
|
|
if (!perf_session__has_traces(session, "timechart record"))
|
|
goto out_delete;
|
|
|
|
if (perf_session__set_tracepoints_handlers(session,
|
|
power_tracepoints)) {
|
|
pr_err("Initializing session tracepoint handlers failed\n");
|
|
goto out_delete;
|
|
}
|
|
|
|
ret = perf_session__process_events(session, &tchart->tool);
|
|
if (ret)
|
|
goto out_delete;
|
|
|
|
end_sample_processing(tchart);
|
|
|
|
sort_pids(tchart);
|
|
|
|
write_svg_file(tchart, output_name);
|
|
|
|
pr_info("Written %2.1f seconds of trace to %s.\n",
|
|
(tchart->last_time - tchart->first_time) / 1000000000.0, output_name);
|
|
out_delete:
|
|
perf_session__delete(session);
|
|
return ret;
|
|
}
|
|
|
|
static int timechart__record(struct timechart *tchart, int argc, const char **argv)
|
|
{
|
|
unsigned int rec_argc, i, j;
|
|
const char **rec_argv;
|
|
const char **p;
|
|
unsigned int record_elems;
|
|
|
|
const char * const common_args[] = {
|
|
"record", "-a", "-R", "-c", "1",
|
|
};
|
|
unsigned int common_args_nr = ARRAY_SIZE(common_args);
|
|
|
|
const char * const backtrace_args[] = {
|
|
"-g",
|
|
};
|
|
unsigned int backtrace_args_no = ARRAY_SIZE(backtrace_args);
|
|
|
|
const char * const power_args[] = {
|
|
"-e", "power:cpu_frequency",
|
|
"-e", "power:cpu_idle",
|
|
};
|
|
unsigned int power_args_nr = ARRAY_SIZE(power_args);
|
|
|
|
const char * const old_power_args[] = {
|
|
#ifdef SUPPORT_OLD_POWER_EVENTS
|
|
"-e", "power:power_start",
|
|
"-e", "power:power_end",
|
|
"-e", "power:power_frequency",
|
|
#endif
|
|
};
|
|
unsigned int old_power_args_nr = ARRAY_SIZE(old_power_args);
|
|
|
|
const char * const tasks_args[] = {
|
|
"-e", "sched:sched_wakeup",
|
|
"-e", "sched:sched_switch",
|
|
};
|
|
unsigned int tasks_args_nr = ARRAY_SIZE(tasks_args);
|
|
|
|
#ifdef SUPPORT_OLD_POWER_EVENTS
|
|
if (!is_valid_tracepoint("power:cpu_idle") &&
|
|
is_valid_tracepoint("power:power_start")) {
|
|
use_old_power_events = 1;
|
|
power_args_nr = 0;
|
|
} else {
|
|
old_power_args_nr = 0;
|
|
}
|
|
#endif
|
|
|
|
if (tchart->power_only)
|
|
tasks_args_nr = 0;
|
|
|
|
if (tchart->tasks_only) {
|
|
power_args_nr = 0;
|
|
old_power_args_nr = 0;
|
|
}
|
|
|
|
if (!tchart->with_backtrace)
|
|
backtrace_args_no = 0;
|
|
|
|
record_elems = common_args_nr + tasks_args_nr +
|
|
power_args_nr + old_power_args_nr + backtrace_args_no;
|
|
|
|
rec_argc = record_elems + argc;
|
|
rec_argv = calloc(rec_argc + 1, sizeof(char *));
|
|
|
|
if (rec_argv == NULL)
|
|
return -ENOMEM;
|
|
|
|
p = rec_argv;
|
|
for (i = 0; i < common_args_nr; i++)
|
|
*p++ = strdup(common_args[i]);
|
|
|
|
for (i = 0; i < backtrace_args_no; i++)
|
|
*p++ = strdup(backtrace_args[i]);
|
|
|
|
for (i = 0; i < tasks_args_nr; i++)
|
|
*p++ = strdup(tasks_args[i]);
|
|
|
|
for (i = 0; i < power_args_nr; i++)
|
|
*p++ = strdup(power_args[i]);
|
|
|
|
for (i = 0; i < old_power_args_nr; i++)
|
|
*p++ = strdup(old_power_args[i]);
|
|
|
|
for (j = 1; j < (unsigned int)argc; j++)
|
|
*p++ = argv[j];
|
|
|
|
return cmd_record(rec_argc, rec_argv, NULL);
|
|
}
|
|
|
|
static int
|
|
parse_process(const struct option *opt __maybe_unused, const char *arg,
|
|
int __maybe_unused unset)
|
|
{
|
|
if (arg)
|
|
add_process_filter(arg);
|
|
return 0;
|
|
}
|
|
|
|
int cmd_timechart(int argc, const char **argv,
|
|
const char *prefix __maybe_unused)
|
|
{
|
|
struct timechart tchart = {
|
|
.tool = {
|
|
.comm = process_comm_event,
|
|
.fork = process_fork_event,
|
|
.exit = process_exit_event,
|
|
.sample = process_sample_event,
|
|
.ordered_samples = true,
|
|
},
|
|
.proc_num = 15,
|
|
};
|
|
const char *output_name = "output.svg";
|
|
const struct option timechart_options[] = {
|
|
OPT_STRING('i', "input", &input_name, "file", "input file name"),
|
|
OPT_STRING('o', "output", &output_name, "file", "output file name"),
|
|
OPT_INTEGER('w', "width", &svg_page_width, "page width"),
|
|
OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
|
|
OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
|
|
"output processes data only"),
|
|
OPT_CALLBACK('p', "process", NULL, "process",
|
|
"process selector. Pass a pid or process name.",
|
|
parse_process),
|
|
OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
|
|
"Look for files with symbols relative to this directory"),
|
|
OPT_INTEGER('n', "proc-num", &tchart.proc_num,
|
|
"min. number of tasks to print"),
|
|
OPT_END()
|
|
};
|
|
const char * const timechart_usage[] = {
|
|
"perf timechart [<options>] {record}",
|
|
NULL
|
|
};
|
|
|
|
const struct option record_options[] = {
|
|
OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"),
|
|
OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only,
|
|
"output processes data only"),
|
|
OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
|
|
OPT_END()
|
|
};
|
|
const char * const record_usage[] = {
|
|
"perf timechart record [<options>]",
|
|
NULL
|
|
};
|
|
argc = parse_options(argc, argv, timechart_options, timechart_usage,
|
|
PARSE_OPT_STOP_AT_NON_OPTION);
|
|
|
|
if (tchart.power_only && tchart.tasks_only) {
|
|
pr_err("-P and -T options cannot be used at the same time.\n");
|
|
return -1;
|
|
}
|
|
|
|
symbol__init();
|
|
|
|
if (argc && !strncmp(argv[0], "rec", 3)) {
|
|
argc = parse_options(argc, argv, record_options, record_usage,
|
|
PARSE_OPT_STOP_AT_NON_OPTION);
|
|
|
|
if (tchart.power_only && tchart.tasks_only) {
|
|
pr_err("-P and -T options cannot be used at the same time.\n");
|
|
return -1;
|
|
}
|
|
|
|
return timechart__record(&tchart, argc, argv);
|
|
} else if (argc)
|
|
usage_with_options(timechart_usage, timechart_options);
|
|
|
|
setup_pager();
|
|
|
|
return __cmd_timechart(&tchart, output_name);
|
|
}
|