--- /dev/null
+/*
+ * builtin-timechart.c - make an svg timechart of system activity
+ *
+ * (C) Copyright 2009 Intel Corporation
+ *
+ * Authors:
+ * Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <traceevent/event-parse.h>
+
+#include "builtin.h"
+
+#include "util/util.h"
+
+#include "util/color.h"
+#include <linux/list.h>
+#include "util/cache.h"
+#include "util/evlist.h"
+#include "util/evsel.h"
+#include <linux/rbtree.h>
+#include "util/symbol.h"
+#include "util/callchain.h"
+#include "util/strlist.h"
+
+#include "perf.h"
+#include "util/header.h"
+#include "util/parse-options.h"
+#include "util/parse-events.h"
+#include "util/event.h"
+#include "util/session.h"
+#include "util/svghelper.h"
+#include "util/tool.h"
+#include "util/data.h"
+#include "util/debug.h"
+
+#define SUPPORT_OLD_POWER_EVENTS 1
+#define PWR_EVENT_EXIT -1
+
+struct per_pid;
+struct power_event;
+struct wake_event;
+
+struct timechart {
+ struct perf_tool tool;
+ struct per_pid *all_data;
+ struct power_event *power_events;
+ struct wake_event *wake_events;
+ int proc_num;
+ unsigned int numcpus;
+ u64 min_freq, /* Lowest CPU frequency seen */
+ max_freq, /* Highest CPU frequency seen */
+ turbo_frequency,
+ first_time, last_time;
+ bool power_only,
+ tasks_only,
+ with_backtrace,
+ topology;
+ /* IO related settings */
+ u64 io_events;
+ bool io_only,
+ skip_eagain;
+ u64 min_time,
+ merge_dist;
+ bool force;
+};
+
+struct per_pidcomm;
+struct cpu_sample;
+struct io_sample;
+
+/*
+ * Datastructure layout:
+ * We keep an list of "pid"s, matching the kernels notion of a task struct.
+ * Each "pid" entry, has a list of "comm"s.
+ * this is because we want to track different programs different, while
+ * exec will reuse the original pid (by design).
+ * Each comm has a list of samples that will be used to draw
+ * final graph.
+ */
+
+struct per_pid {
+ struct per_pid *next;
+
+ int pid;
+ int ppid;
+
+ u64 start_time;
+ u64 end_time;
+ u64 total_time;
+ u64 total_bytes;
+ int display;
+
+ struct per_pidcomm *all;
+ struct per_pidcomm *current;
+};
+
+
+struct per_pidcomm {
+ struct per_pidcomm *next;
+
+ u64 start_time;
+ u64 end_time;
+ u64 total_time;
+ u64 max_bytes;
+ u64 total_bytes;
+
+ int Y;
+ int display;
+
+ long state;
+ u64 state_since;
+
+ char *comm;
+
+ struct cpu_sample *samples;
+ struct io_sample *io_samples;
+};
+
+struct sample_wrapper {
+ struct sample_wrapper *next;
+
+ u64 timestamp;
+ unsigned char data[0];
+};
+
+#define TYPE_NONE 0
+#define TYPE_RUNNING 1
+#define TYPE_WAITING 2
+#define TYPE_BLOCKED 3
+
+struct cpu_sample {
+ struct cpu_sample *next;
+
+ u64 start_time;
+ u64 end_time;
+ int type;
+ int cpu;
+ const char *backtrace;
+};
+
+enum {
+ IOTYPE_READ,
+ IOTYPE_WRITE,
+ IOTYPE_SYNC,
+ IOTYPE_TX,
+ IOTYPE_RX,
+ IOTYPE_POLL,
+};
+
+struct io_sample {
+ struct io_sample *next;
+
+ u64 start_time;
+ u64 end_time;
+ u64 bytes;
+ int type;
+ int fd;
+ int err;
+ int merges;
+};
+
+#define CSTATE 1
+#define PSTATE 2
+
+struct power_event {
+ struct power_event *next;
+ int type;
+ int state;
+ u64 start_time;
+ u64 end_time;
+ int cpu;
+};
+
+struct wake_event {
+ struct wake_event *next;
+ int waker;
+ int wakee;
+ u64 time;
+ const char *backtrace;
+};
+
+struct process_filter {
+ char *name;
+ int pid;
+ struct process_filter *next;
+};
+
+static struct process_filter *process_filter;
+
+
+static struct per_pid *find_create_pid(struct timechart *tchart, int pid)
+{
+ struct per_pid *cursor = tchart->all_data;
+
+ while (cursor) {
+ if (cursor->pid == pid)
+ return cursor;
+ cursor = cursor->next;
+ }
+ cursor = zalloc(sizeof(*cursor));
+ assert(cursor != NULL);
+ cursor->pid = pid;
+ cursor->next = tchart->all_data;
+ tchart->all_data = cursor;
+ return cursor;
+}
+
+static void pid_set_comm(struct timechart *tchart, int pid, char *comm)
+{
+ struct per_pid *p;
+ struct per_pidcomm *c;
+ p = find_create_pid(tchart, pid);
+ c = p->all;
+ while (c) {
+ if (c->comm && strcmp(c->comm, comm) == 0) {
+ p->current = c;
+ return;
+ }
+ if (!c->comm) {
+ c->comm = strdup(comm);
+ p->current = c;
+ return;
+ }
+ c = c->next;
+ }
+ c = zalloc(sizeof(*c));
+ assert(c != NULL);
+ c->comm = strdup(comm);
+ p->current = c;
+ c->next = p->all;
+ p->all = c;
+}
+
+static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
+{
+ struct per_pid *p, *pp;
+ p = find_create_pid(tchart, pid);
+ pp = find_create_pid(tchart, ppid);
+ p->ppid = ppid;
+ if (pp->current && pp->current->comm && !p->current)
+ pid_set_comm(tchart, pid, pp->current->comm);
+
+ p->start_time = timestamp;
+ if (p->current && !p->current->start_time) {
+ p->current->start_time = timestamp;
+ p->current->state_since = timestamp;
+ }
+}
+
+static void pid_exit(struct timechart *tchart, int pid, u64 timestamp)
+{
+ struct per_pid *p;
+ p = find_create_pid(tchart, pid);
+ p->end_time = timestamp;
+ if (p->current)
+ p->current->end_time = timestamp;
+}
+
+static void pid_put_sample(struct timechart *tchart, int pid, int type,
+ unsigned int cpu, u64 start, u64 end,
+ const char *backtrace)
+{
+ struct per_pid *p;
+ struct per_pidcomm *c;
+ struct cpu_sample *sample;
+
+ p = find_create_pid(tchart, pid);
+ c = p->current;
+ if (!c) {
+ c = zalloc(sizeof(*c));
+ assert(c != NULL);
+ p->current = c;
+ c->next = p->all;
+ p->all = c;
+ }
+
+ sample = zalloc(sizeof(*sample));
+ assert(sample != NULL);
+ sample->start_time = start;
+ sample->end_time = end;
+ sample->type = type;
+ sample->next = c->samples;
+ sample->cpu = cpu;
+ sample->backtrace = backtrace;
+ c->samples = sample;
+
+ if (sample->type == TYPE_RUNNING && end > start && start > 0) {
+ c->total_time += (end-start);
+ p->total_time += (end-start);
+ }
+
+ if (c->start_time == 0 || c->start_time > start)
+ c->start_time = start;
+ if (p->start_time == 0 || p->start_time > start)
+ p->start_time = start;
+}
+
+#define MAX_CPUS 4096
+
+static u64 cpus_cstate_start_times[MAX_CPUS];
+static int cpus_cstate_state[MAX_CPUS];
+static u64 cpus_pstate_start_times[MAX_CPUS];
+static u64 cpus_pstate_state[MAX_CPUS];
+
+static int process_comm_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct timechart *tchart = container_of(tool, struct timechart, tool);
+ pid_set_comm(tchart, event->comm.tid, event->comm.comm);
+ return 0;
+}
+
+static int process_fork_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct timechart *tchart = container_of(tool, struct timechart, tool);
+ pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time);
+ return 0;
+}
+
+static int process_exit_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct timechart *tchart = container_of(tool, struct timechart, tool);
+ pid_exit(tchart, event->fork.pid, event->fork.time);
+ return 0;
+}
+
+#ifdef SUPPORT_OLD_POWER_EVENTS
+static int use_old_power_events;
+#endif
+
+static void c_state_start(int cpu, u64 timestamp, int state)
+{
+ cpus_cstate_start_times[cpu] = timestamp;
+ cpus_cstate_state[cpu] = state;
+}
+
+static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
+{
+ struct power_event *pwr = zalloc(sizeof(*pwr));
+
+ if (!pwr)
+ return;
+
+ pwr->state = cpus_cstate_state[cpu];
+ pwr->start_time = cpus_cstate_start_times[cpu];
+ pwr->end_time = timestamp;
+ pwr->cpu = cpu;
+ pwr->type = CSTATE;
+ pwr->next = tchart->power_events;
+
+ tchart->power_events = pwr;
+}
+
+static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
+{
+ struct power_event *pwr;
+
+ if (new_freq > 8000000) /* detect invalid data */
+ return;
+
+ pwr = zalloc(sizeof(*pwr));
+ if (!pwr)
+ return;
+
+ pwr->state = cpus_pstate_state[cpu];
+ pwr->start_time = cpus_pstate_start_times[cpu];
+ pwr->end_time = timestamp;
+ pwr->cpu = cpu;
+ pwr->type = PSTATE;
+ pwr->next = tchart->power_events;
+
+ if (!pwr->start_time)
+ pwr->start_time = tchart->first_time;
+
+ tchart->power_events = pwr;
+
+ cpus_pstate_state[cpu] = new_freq;
+ cpus_pstate_start_times[cpu] = timestamp;
+
+ if ((u64)new_freq > tchart->max_freq)
+ tchart->max_freq = new_freq;
+
+ if (new_freq < tchart->min_freq || tchart->min_freq == 0)
+ tchart->min_freq = new_freq;
+
+ if (new_freq == tchart->max_freq - 1000)
+ tchart->turbo_frequency = tchart->max_freq;
+}
+
+static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp,
+ int waker, int wakee, u8 flags, const char *backtrace)
+{
+ struct per_pid *p;
+ struct wake_event *we = zalloc(sizeof(*we));
+
+ if (!we)
+ return;
+
+ we->time = timestamp;
+ we->waker = waker;
+ we->backtrace = backtrace;
+
+ if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ))
+ we->waker = -1;
+
+ we->wakee = wakee;
+ we->next = tchart->wake_events;
+ tchart->wake_events = we;
+ p = find_create_pid(tchart, we->wakee);
+
+ if (p && p->current && p->current->state == TYPE_NONE) {
+ p->current->state_since = timestamp;
+ p->current->state = TYPE_WAITING;
+ }
+ if (p && p->current && p->current->state == TYPE_BLOCKED) {
+ pid_put_sample(tchart, p->pid, p->current->state, cpu,
+ p->current->state_since, timestamp, NULL);
+ p->current->state_since = timestamp;
+ p->current->state = TYPE_WAITING;
+ }
+}
+
+static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp,
+ int prev_pid, int next_pid, u64 prev_state,
+ const char *backtrace)
+{
+ struct per_pid *p = NULL, *prev_p;
+
+ prev_p = find_create_pid(tchart, prev_pid);
+
+ p = find_create_pid(tchart, next_pid);
+
+ if (prev_p->current && prev_p->current->state != TYPE_NONE)
+ pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu,
+ prev_p->current->state_since, timestamp,
+ backtrace);
+ if (p && p->current) {
+ if (p->current->state != TYPE_NONE)
+ pid_put_sample(tchart, next_pid, p->current->state, cpu,
+ p->current->state_since, timestamp,
+ backtrace);
+
+ p->current->state_since = timestamp;
+ p->current->state = TYPE_RUNNING;
+ }
+
+ if (prev_p->current) {
+ prev_p->current->state = TYPE_NONE;
+ prev_p->current->state_since = timestamp;
+ if (prev_state & 2)
+ prev_p->current->state = TYPE_BLOCKED;
+ if (prev_state == 0)
+ prev_p->current->state = TYPE_WAITING;
+ }
+}
+
+static const char *cat_backtrace(union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct addr_location al;
+ unsigned int i;
+ char *p = NULL;
+ size_t p_len;
+ u8 cpumode = PERF_RECORD_MISC_USER;
+ struct addr_location tal;
+ struct ip_callchain *chain = sample->callchain;
+ FILE *f = open_memstream(&p, &p_len);
+
+ if (!f) {
+ perror("open_memstream error");
+ return NULL;
+ }
+
+ if (!chain)
+ goto exit;
+
+ if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
+ fprintf(stderr, "problem processing %d event, skipping it.\n",
+ event->header.type);
+ goto exit;
+ }
+
+ for (i = 0; i < chain->nr; i++) {
+ u64 ip;
+
+ if (callchain_param.order == ORDER_CALLEE)
+ ip = chain->ips[i];
+ else
+ ip = chain->ips[chain->nr - i - 1];
+
+ if (ip >= PERF_CONTEXT_MAX) {
+ switch (ip) {
+ case PERF_CONTEXT_HV:
+ cpumode = PERF_RECORD_MISC_HYPERVISOR;
+ break;
+ case PERF_CONTEXT_KERNEL:
+ cpumode = PERF_RECORD_MISC_KERNEL;
+ break;
+ case PERF_CONTEXT_USER:
+ cpumode = PERF_RECORD_MISC_USER;
+ break;
+ default:
+ pr_debug("invalid callchain context: "
+ "%"PRId64"\n", (s64) ip);
+
+ /*
+ * It seems the callchain is corrupted.
+ * Discard all.
+ */
+ zfree(&p);
+ goto exit;
+ }
+ continue;
+ }
+
+ tal.filtered = 0;
+ thread__find_addr_location(al.thread, cpumode,
+ MAP__FUNCTION, ip, &tal);
+
+ if (tal.sym)
+ fprintf(f, "..... %016" PRIx64 " %s\n", ip,
+ tal.sym->name);
+ else
+ fprintf(f, "..... %016" PRIx64 "\n", ip);
+ }
+
+exit:
+ fclose(f);
+
+ return p;
+}
+
+typedef int (*tracepoint_handler)(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample,
+ const char *backtrace);
+
+static int process_sample_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct machine *machine)
+{
+ struct timechart *tchart = container_of(tool, struct timechart, tool);
+
+ if (evsel->attr.sample_type & PERF_SAMPLE_TIME) {
+ if (!tchart->first_time || tchart->first_time > sample->time)
+ tchart->first_time = sample->time;
+ if (tchart->last_time < sample->time)
+ tchart->last_time = sample->time;
+ }
+
+ if (evsel->handler != NULL) {
+ tracepoint_handler f = evsel->handler;
+ return f(tchart, evsel, sample,
+ cat_backtrace(event, sample, machine));
+ }
+
+ 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;
+ }
+}
+
+static int pid_begin_io_sample(struct timechart *tchart, int pid, int type,
+ u64 start, int fd)
+{
+ struct per_pid *p = find_create_pid(tchart, pid);
+ struct per_pidcomm *c = p->current;
+ struct io_sample *sample;
+ struct io_sample *prev;
+
+ if (!c) {
+ c = zalloc(sizeof(*c));
+ if (!c)
+ return -ENOMEM;
+ p->current = c;
+ c->next = p->all;
+ p->all = c;
+ }
+
+ prev = c->io_samples;
+
+ if (prev && prev->start_time && !prev->end_time) {
+ pr_warning("Skip invalid start event: "
+ "previous event already started!\n");
+
+ /* remove previous event that has been started,
+ * we are not sure we will ever get an end for it */
+ c->io_samples = prev->next;
+ free(prev);
+ return 0;
+ }
+
+ sample = zalloc(sizeof(*sample));
+ if (!sample)
+ return -ENOMEM;
+ sample->start_time = start;
+ sample->type = type;
+ sample->fd = fd;
+ sample->next = c->io_samples;
+ c->io_samples = sample;
+
+ if (c->start_time == 0 || c->start_time > start)
+ c->start_time = start;
+
+ return 0;
+}
+
+static int pid_end_io_sample(struct timechart *tchart, int pid, int type,
+ u64 end, long ret)
+{
+ struct per_pid *p = find_create_pid(tchart, pid);
+ struct per_pidcomm *c = p->current;
+ struct io_sample *sample, *prev;
+
+ if (!c) {
+ pr_warning("Invalid pidcomm!\n");
+ return -1;
+ }
+
+ sample = c->io_samples;
+
+ if (!sample) /* skip partially captured events */
+ return 0;
+
+ if (sample->end_time) {
+ pr_warning("Skip invalid end event: "
+ "previous event already ended!\n");
+ return 0;
+ }
+
+ if (sample->type != type) {
+ pr_warning("Skip invalid end event: invalid event type!\n");
+ return 0;
+ }
+
+ sample->end_time = end;
+ prev = sample->next;
+
+ /* we want to be able to see small and fast transfers, so make them
+ * at least min_time long, but don't overlap them */
+ if (sample->end_time - sample->start_time < tchart->min_time)
+ sample->end_time = sample->start_time + tchart->min_time;
+ if (prev && sample->start_time < prev->end_time) {
+ if (prev->err) /* try to make errors more visible */
+ sample->start_time = prev->end_time;
+ else
+ prev->end_time = sample->start_time;
+ }
+
+ if (ret < 0) {
+ sample->err = ret;
+ } else if (type == IOTYPE_READ || type == IOTYPE_WRITE ||
+ type == IOTYPE_TX || type == IOTYPE_RX) {
+
+ if ((u64)ret > c->max_bytes)
+ c->max_bytes = ret;
+
+ c->total_bytes += ret;
+ p->total_bytes += ret;
+ sample->bytes = ret;
+ }
+
+ /* merge two requests to make svg smaller and render-friendly */
+ if (prev &&
+ prev->type == sample->type &&
+ prev->err == sample->err &&
+ prev->fd == sample->fd &&
+ prev->end_time + tchart->merge_dist >= sample->start_time) {
+
+ sample->bytes += prev->bytes;
+ sample->merges += prev->merges + 1;
+
+ sample->start_time = prev->start_time;
+ sample->next = prev->next;
+ free(prev);
+
+ if (!sample->err && sample->bytes > c->max_bytes)
+ c->max_bytes = sample->bytes;
+ }
+
+ tchart->io_events++;
+
+ return 0;
+}
+
+static int
+process_enter_read(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ,
+ sample->time, fd);
+}
+
+static int
+process_exit_read(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ,
+ sample->time, ret);
+}
+
+static int
+process_enter_write(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE,
+ sample->time, fd);
+}
+
+static int
+process_exit_write(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE,
+ sample->time, ret);
+}
+
+static int
+process_enter_sync(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC,
+ sample->time, fd);
+}
+
+static int
+process_exit_sync(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC,
+ sample->time, ret);
+}
+
+static int
+process_enter_tx(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX,
+ sample->time, fd);
+}
+
+static int
+process_exit_tx(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX,
+ sample->time, ret);
+}
+
+static int
+process_enter_rx(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX,
+ sample->time, fd);
+}
+
+static int
+process_exit_rx(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX,
+ sample->time, ret);
+}
+
+static int
+process_enter_poll(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long fd = perf_evsel__intval(evsel, sample, "fd");
+ return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL,
+ sample->time, fd);
+}
+
+static int
+process_exit_poll(struct timechart *tchart,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample)
+{
+ long ret = perf_evsel__intval(evsel, sample, "ret");
+ return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL,
+ sample->time, ret);
+}
+
+/*
+ * 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,
+ p->pid,
+ c->comm,
+ sample->backtrace);
+ }
+
+ sample = sample->next;
+ }
+ c = c->next;
+ }
+ p = p->next;
+ }
+}
+
+static void draw_io_bars(struct timechart *tchart)
+{
+ const char *suf;
+ double bytes;
+ char comm[256];
+ struct per_pid *p;
+ struct per_pidcomm *c;
+ struct io_sample *sample;
+ int Y = 1;
+
+ 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, "process3");
+ sample = c->io_samples;
+ for (sample = c->io_samples; sample; sample = sample->next) {
+ double h = (double)sample->bytes / c->max_bytes;
+
+ if (tchart->skip_eagain &&
+ sample->err == -EAGAIN)
+ continue;
+
+ if (sample->err)
+ h = 1;
+
+ if (sample->type == IOTYPE_SYNC)
+ svg_fbox(Y,
+ sample->start_time,
+ sample->end_time,
+ 1,
+ sample->err ? "error" : "sync",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ else if (sample->type == IOTYPE_POLL)
+ svg_fbox(Y,
+ sample->start_time,
+ sample->end_time,
+ 1,
+ sample->err ? "error" : "poll",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ else if (sample->type == IOTYPE_READ)
+ svg_ubox(Y,
+ sample->start_time,
+ sample->end_time,
+ h,
+ sample->err ? "error" : "disk",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ else if (sample->type == IOTYPE_WRITE)
+ svg_lbox(Y,
+ sample->start_time,
+ sample->end_time,
+ h,
+ sample->err ? "error" : "disk",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ else if (sample->type == IOTYPE_RX)
+ svg_ubox(Y,
+ sample->start_time,
+ sample->end_time,
+ h,
+ sample->err ? "error" : "net",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ else if (sample->type == IOTYPE_TX)
+ svg_lbox(Y,
+ sample->start_time,
+ sample->end_time,
+ h,
+ sample->err ? "error" : "net",
+ sample->fd,
+ sample->err,
+ sample->merges);
+ }
+
+ suf = "";
+ bytes = c->total_bytes;
+ if (bytes > 1024) {
+ bytes = bytes / 1024;
+ suf = "K";
+ }
+ if (bytes > 1024) {
+ bytes = bytes / 1024;
+ suf = "M";
+ }
+ if (bytes > 1024) {
+ bytes = bytes / 1024;
+ suf = "G";
+ }
+
+
+ sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf);
+ svg_text(Y, c->start_time, comm);
+
+ c->Y = Y;
+ Y++;
+ 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;
+
+ 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;
+}
+
+static int determine_display_io_tasks(struct timechart *timechart, u64 threshold)
+{
+ struct per_pid *p;
+ struct per_pidcomm *c;
+ int count = 0;
+
+ p = timechart->all_data;
+ while (p) {
+ /* no exit marker, task kept running to the end */
+ if (p->end_time == 0)
+ p->end_time = timechart->last_time;
+
+ c = p->all;
+
+ while (c) {
+ c->display = 0;
+
+ if (c->total_bytes >= threshold) {
+ c->display = 1;
+ count++;
+ }
+
+ if (c->end_time == 0)
+ c->end_time = timechart->last_time;
+
+ c = c->next;
+ }
+ p = p->next;
+ }
+ return count;
+}
+
+#define BYTES_THRESH (1 * 1024 * 1024)
+#define TIME_THRESH 10000000
+
+static void write_svg_file(struct timechart *tchart, const char *filename)
+{
+ u64 i;
+ int count;
+ int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH;
+
+ 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 {
+ if (process_filter)
+ count = determine_display_tasks_filtered(tchart);
+ else if (tchart->io_events)
+ count = determine_display_io_tasks(tchart, thresh);
+ else
+ count = determine_display_tasks(tchart, thresh);
+ thresh /= 10;
+ } while (!process_filter && thresh && count < tchart->proc_num);
+
+ if (!tchart->proc_num)
+ count = 0;
+
+ if (tchart->io_events) {
+ open_svg(filename, 0, count, tchart->first_time, tchart->last_time);
+
+ svg_time_grid(0.5);
+ svg_io_legenda();
+
+ draw_io_bars(tchart);
+ } else {
+ open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
+
+ svg_time_grid(0);
+
+ 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 process_header(struct perf_file_section *section __maybe_unused,
+ struct perf_header *ph,
+ int feat,
+ int fd __maybe_unused,
+ void *data)
+{
+ struct timechart *tchart = data;
+
+ switch (feat) {
+ case HEADER_NRCPUS:
+ tchart->numcpus = ph->env.nr_cpus_avail;
+ break;
+
+ case HEADER_CPU_TOPOLOGY:
+ if (!tchart->topology)
+ break;
+
+ if (svg_build_topology_map(ph->env.sibling_cores,
+ ph->env.nr_sibling_cores,
+ ph->env.sibling_threads,
+ ph->env.nr_sibling_threads))
+ fprintf(stderr, "problem building topology\n");
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+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
+
+ { "syscalls:sys_enter_read", process_enter_read },
+ { "syscalls:sys_enter_pread64", process_enter_read },
+ { "syscalls:sys_enter_readv", process_enter_read },
+ { "syscalls:sys_enter_preadv", process_enter_read },
+ { "syscalls:sys_enter_write", process_enter_write },
+ { "syscalls:sys_enter_pwrite64", process_enter_write },
+ { "syscalls:sys_enter_writev", process_enter_write },
+ { "syscalls:sys_enter_pwritev", process_enter_write },
+ { "syscalls:sys_enter_sync", process_enter_sync },
+ { "syscalls:sys_enter_sync_file_range", process_enter_sync },
+ { "syscalls:sys_enter_fsync", process_enter_sync },
+ { "syscalls:sys_enter_msync", process_enter_sync },
+ { "syscalls:sys_enter_recvfrom", process_enter_rx },
+ { "syscalls:sys_enter_recvmmsg", process_enter_rx },
+ { "syscalls:sys_enter_recvmsg", process_enter_rx },
+ { "syscalls:sys_enter_sendto", process_enter_tx },
+ { "syscalls:sys_enter_sendmsg", process_enter_tx },
+ { "syscalls:sys_enter_sendmmsg", process_enter_tx },
+ { "syscalls:sys_enter_epoll_pwait", process_enter_poll },
+ { "syscalls:sys_enter_epoll_wait", process_enter_poll },
+ { "syscalls:sys_enter_poll", process_enter_poll },
+ { "syscalls:sys_enter_ppoll", process_enter_poll },
+ { "syscalls:sys_enter_pselect6", process_enter_poll },
+ { "syscalls:sys_enter_select", process_enter_poll },
+
+ { "syscalls:sys_exit_read", process_exit_read },
+ { "syscalls:sys_exit_pread64", process_exit_read },
+ { "syscalls:sys_exit_readv", process_exit_read },
+ { "syscalls:sys_exit_preadv", process_exit_read },
+ { "syscalls:sys_exit_write", process_exit_write },
+ { "syscalls:sys_exit_pwrite64", process_exit_write },
+ { "syscalls:sys_exit_writev", process_exit_write },
+ { "syscalls:sys_exit_pwritev", process_exit_write },
+ { "syscalls:sys_exit_sync", process_exit_sync },
+ { "syscalls:sys_exit_sync_file_range", process_exit_sync },
+ { "syscalls:sys_exit_fsync", process_exit_sync },
+ { "syscalls:sys_exit_msync", process_exit_sync },
+ { "syscalls:sys_exit_recvfrom", process_exit_rx },
+ { "syscalls:sys_exit_recvmmsg", process_exit_rx },
+ { "syscalls:sys_exit_recvmsg", process_exit_rx },
+ { "syscalls:sys_exit_sendto", process_exit_tx },
+ { "syscalls:sys_exit_sendmsg", process_exit_tx },
+ { "syscalls:sys_exit_sendmmsg", process_exit_tx },
+ { "syscalls:sys_exit_epoll_pwait", process_exit_poll },
+ { "syscalls:sys_exit_epoll_wait", process_exit_poll },
+ { "syscalls:sys_exit_poll", process_exit_poll },
+ { "syscalls:sys_exit_ppoll", process_exit_poll },
+ { "syscalls:sys_exit_pselect6", process_exit_poll },
+ { "syscalls:sys_exit_select", process_exit_poll },
+ };
+ struct perf_data_file file = {
+ .path = input_name,
+ .mode = PERF_DATA_MODE_READ,
+ .force = tchart->force,
+ };
+
+ struct perf_session *session = perf_session__new(&file, false,
+ &tchart->tool);
+ int ret = -EINVAL;
+
+ if (session == NULL)
+ return -1;
+
+ symbol__init(&session->header.env);
+
+ (void)perf_header__process_sections(&session->header,
+ perf_data_file__fd(session->file),
+ tchart,
+ process_header);
+
+ 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);
+ 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__io_record(int argc, const char **argv)
+{
+ unsigned int rec_argc, i;
+ const char **rec_argv;
+ const char **p;
+ char *filter = NULL;
+
+ const char * const common_args[] = {
+ "record", "-a", "-R", "-c", "1",
+ };
+ unsigned int common_args_nr = ARRAY_SIZE(common_args);
+
+ const char * const disk_events[] = {
+ "syscalls:sys_enter_read",
+ "syscalls:sys_enter_pread64",
+ "syscalls:sys_enter_readv",
+ "syscalls:sys_enter_preadv",
+ "syscalls:sys_enter_write",
+ "syscalls:sys_enter_pwrite64",
+ "syscalls:sys_enter_writev",
+ "syscalls:sys_enter_pwritev",
+ "syscalls:sys_enter_sync",
+ "syscalls:sys_enter_sync_file_range",
+ "syscalls:sys_enter_fsync",
+ "syscalls:sys_enter_msync",
+
+ "syscalls:sys_exit_read",
+ "syscalls:sys_exit_pread64",
+ "syscalls:sys_exit_readv",
+ "syscalls:sys_exit_preadv",
+ "syscalls:sys_exit_write",
+ "syscalls:sys_exit_pwrite64",
+ "syscalls:sys_exit_writev",
+ "syscalls:sys_exit_pwritev",
+ "syscalls:sys_exit_sync",
+ "syscalls:sys_exit_sync_file_range",
+ "syscalls:sys_exit_fsync",
+ "syscalls:sys_exit_msync",
+ };
+ unsigned int disk_events_nr = ARRAY_SIZE(disk_events);
+
+ const char * const net_events[] = {
+ "syscalls:sys_enter_recvfrom",
+ "syscalls:sys_enter_recvmmsg",
+ "syscalls:sys_enter_recvmsg",
+ "syscalls:sys_enter_sendto",
+ "syscalls:sys_enter_sendmsg",
+ "syscalls:sys_enter_sendmmsg",
+
+ "syscalls:sys_exit_recvfrom",
+ "syscalls:sys_exit_recvmmsg",
+ "syscalls:sys_exit_recvmsg",
+ "syscalls:sys_exit_sendto",
+ "syscalls:sys_exit_sendmsg",
+ "syscalls:sys_exit_sendmmsg",
+ };
+ unsigned int net_events_nr = ARRAY_SIZE(net_events);
+
+ const char * const poll_events[] = {
+ "syscalls:sys_enter_epoll_pwait",
+ "syscalls:sys_enter_epoll_wait",
+ "syscalls:sys_enter_poll",
+ "syscalls:sys_enter_ppoll",
+ "syscalls:sys_enter_pselect6",
+ "syscalls:sys_enter_select",
+
+ "syscalls:sys_exit_epoll_pwait",
+ "syscalls:sys_exit_epoll_wait",
+ "syscalls:sys_exit_poll",
+ "syscalls:sys_exit_ppoll",
+ "syscalls:sys_exit_pselect6",
+ "syscalls:sys_exit_select",
+ };
+ unsigned int poll_events_nr = ARRAY_SIZE(poll_events);
+
+ rec_argc = common_args_nr +
+ disk_events_nr * 4 +
+ net_events_nr * 4 +
+ poll_events_nr * 4 +
+ argc;
+ rec_argv = calloc(rec_argc + 1, sizeof(char *));
+
+ if (rec_argv == NULL)
+ return -ENOMEM;
+
+ if (asprintf(&filter, "common_pid != %d", getpid()) < 0)
+ return -ENOMEM;
+
+ p = rec_argv;
+ for (i = 0; i < common_args_nr; i++)
+ *p++ = strdup(common_args[i]);
+
+ for (i = 0; i < disk_events_nr; i++) {
+ if (!is_valid_tracepoint(disk_events[i])) {
+ rec_argc -= 4;
+ continue;
+ }
+
+ *p++ = "-e";
+ *p++ = strdup(disk_events[i]);
+ *p++ = "--filter";
+ *p++ = filter;
+ }
+ for (i = 0; i < net_events_nr; i++) {
+ if (!is_valid_tracepoint(net_events[i])) {
+ rec_argc -= 4;
+ continue;
+ }
+
+ *p++ = "-e";
+ *p++ = strdup(net_events[i]);
+ *p++ = "--filter";
+ *p++ = filter;
+ }
+ for (i = 0; i < poll_events_nr; i++) {
+ if (!is_valid_tracepoint(poll_events[i])) {
+ rec_argc -= 4;
+ continue;
+ }
+
+ *p++ = "-e";
+ *p++ = strdup(poll_events[i]);
+ *p++ = "--filter";
+ *p++ = filter;
+ }
+
+ for (i = 0; i < (unsigned int)argc; i++)
+ *p++ = argv[i];
+
+ return cmd_record(rec_argc, rec_argv, NULL);
+}
+
+
+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 = 0; 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;
+}
+
+static int
+parse_highlight(const struct option *opt __maybe_unused, const char *arg,
+ int __maybe_unused unset)
+{
+ unsigned long duration = strtoul(arg, NULL, 0);
+
+ if (svg_highlight || svg_highlight_name)
+ return -1;
+
+ if (duration)
+ svg_highlight = duration;
+ else
+ svg_highlight_name = strdup(arg);
+
+ return 0;
+}
+
+static int
+parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
+{
+ char unit = 'n';
+ u64 *value = opt->value;
+
+ if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
+ switch (unit) {
+ case 'm':
+ *value *= 1000000;
+ break;
+ case 'u':
+ *value *= 1000;
+ break;
+ case 'n':
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ 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_events = true,
+ },
+ .proc_num = 15,
+ .min_time = 1000000,
+ .merge_dist = 1000,
+ };
+ 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_CALLBACK(0, "highlight", NULL, "duration or task name",
+ "highlight tasks. Pass duration in ns or process name.",
+ parse_highlight),
+ 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_BOOLEAN('t', "topology", &tchart.topology,
+ "sort CPUs according to topology"),
+ OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain,
+ "skip EAGAIN errors"),
+ OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time",
+ "all IO faster than min-time will visually appear longer",
+ parse_time),
+ OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time",
+ "merge events that are merge-dist us apart",
+ parse_time),
+ OPT_BOOLEAN('f', "force", &tchart.force, "don't complain, do it"),
+ OPT_END()
+ };
+ const char * const timechart_subcommands[] = { "record", NULL };
+ const char *timechart_usage[] = {
+ "perf timechart [<options>] {record}",
+ NULL
+ };
+
+ const struct option timechart_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('I', "io-only", &tchart.io_only,
+ "record only IO data"),
+ OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"),
+ OPT_END()
+ };
+ const char * const timechart_record_usage[] = {
+ "perf timechart record [<options>]",
+ NULL
+ };
+ argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
+ 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;
+ }
+
+ if (argc && !strncmp(argv[0], "rec", 3)) {
+ argc = parse_options(argc, argv, timechart_record_options,
+ timechart_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;
+ }
+
+ if (tchart.io_only)
+ return timechart__io_record(argc, argv);
+ else
+ return timechart__record(&tchart, argc, argv);
+ } else if (argc)
+ usage_with_options(timechart_usage, timechart_options);
+
+ setup_pager();
+
+ return __cmd_timechart(&tchart, output_name);
+}
Code Review / kvmfornfv.git / blobdiff