diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/builtin-timechart.c | 2007 |
1 files changed, 2007 insertions, 0 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c new file mode 100644 index 000000000..4e380e7b5 --- /dev/null +++ b/tools/perf/builtin-timechart.c @@ -0,0 +1,2007 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * builtin-timechart.c - make an svg timechart of system activity + * + * (C) Copyright 2009 Intel Corporation + * + * Authors: + * Arjan van de Ven <arjan@linux.intel.com> + */ + +#include <errno.h> +#include <inttypes.h> + +#include "builtin.h" +#include "util/color.h" +#include <linux/list.h> +#include "util/evlist.h" // for struct evsel_str_handler +#include "util/evsel.h" +#include <linux/kernel.h> +#include <linux/rbtree.h> +#include <linux/time64.h> +#include <linux/zalloc.h> +#include "util/symbol.h" +#include "util/thread.h" +#include "util/callchain.h" + +#include "perf.h" +#include "util/header.h" +#include <subcmd/pager.h> +#include <subcmd/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" +#include <linux/err.h> + +#ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE +FILE *open_memstream(char **ptr, size_t *sizeloc); +#endif + +#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; + bool force; + /* IO related settings */ + bool io_only, + skip_eagain; + u64 io_events; + u64 min_time, + merge_dist; +}; + +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[]; +}; + +#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 (machine__resolve(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_put; + } + continue; + } + + tal.filtered = 0; + if (thread__find_symbol(al.thread, cpumode, ip, &tal)) + fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name); + else + fprintf(f, "..... %016" PRIx64 "\n", ip); + } +exit_put: + addr_location__put(&al); +exit: + fclose(f); + + return p; +} + +typedef int (*tracepoint_handler)(struct timechart *tchart, + struct 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 evsel *evsel, + struct machine *machine) +{ + struct timechart *tchart = container_of(tool, struct timechart, tool); + + if (evsel->core.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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace __maybe_unused) +{ + u32 state = evsel__intval(evsel, sample, "state"); + u32 cpu_id = 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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace __maybe_unused) +{ + u32 state = evsel__intval(evsel, sample, "state"); + u32 cpu_id = 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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace) +{ + u8 flags = evsel__intval(evsel, sample, "common_flags"); + int waker = evsel__intval(evsel, sample, "common_pid"); + int wakee = 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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace) +{ + int prev_pid = evsel__intval(evsel, sample, "prev_pid"); + int next_pid = evsel__intval(evsel, sample, "next_pid"); + u64 prev_state = 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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace __maybe_unused) +{ + u64 cpu_id = evsel__intval(evsel, sample, "cpu_id"); + u64 value = 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 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 evsel *evsel, + struct perf_sample *sample, + const char *backtrace __maybe_unused) +{ + u64 cpu_id = evsel__intval(evsel, sample, "cpu_id"); + u64 value = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 evsel *evsel, + struct perf_sample *sample) +{ + long fd = 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 evsel *evsel, + struct perf_sample *sample) +{ + long ret = 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 / (double)NSEC_PER_SEC); + else + sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC); + + 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)) + fprintf(stderr, "problem building topology\n"); + break; + + default: + break; + } + + return 0; +} + +static int __cmd_timechart(struct timechart *tchart, const char *output_name) +{ + const struct 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 data = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + .force = tchart->force, + }; + + struct perf_session *session = perf_session__new(&data, false, + &tchart->tool); + int ret = -EINVAL; + + if (IS_ERR(session)) + return PTR_ERR(session); + + symbol__init(&session->header.env); + + (void)perf_header__process_sections(&session->header, + perf_data__fd(session->data), + 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) / (double)NSEC_PER_SEC, 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) { + free(rec_argv); + 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); +} + + +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); +} + +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 *= NSEC_PER_MSEC; + break; + case 'u': + *value *= NSEC_PER_USEC; + break; + case 'n': + break; + default: + return -1; + } + } + + return 0; +} + +int cmd_timechart(int argc, const char **argv) +{ + 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 = NSEC_PER_MSEC, + .merge_dist = 1000, + }; + const char *output_name = "output.svg"; + const struct option timechart_common_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_END() + }; + 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_CALLBACK('p', "process", NULL, "process", + "process selector. Pass a pid or process name.", + parse_process), + OPT_CALLBACK(0, "symfs", NULL, "directory", + "Look for files with symbols relative to this directory", + symbol__config_symfs), + 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_PARENT(timechart_common_options), + }; + const char * const timechart_subcommands[] = { "record", NULL }; + const char *timechart_usage[] = { + "perf timechart [<options>] {record}", + NULL + }; + const struct option timechart_record_options[] = { + OPT_BOOLEAN('I', "io-only", &tchart.io_only, + "record only IO data"), + OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"), + OPT_PARENT(timechart_common_options), + }; + 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); +} |