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2006 lines
46 KiB
2006 lines
46 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* builtin-timechart.c - make an svg timechart of system activity |
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* |
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* (C) Copyright 2009 Intel Corporation |
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* |
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* Authors: |
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* Arjan van de Ven <[email protected]> |
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*/ |
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|
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#include <errno.h> |
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#include <inttypes.h> |
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|
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#include "builtin.h" |
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#include "util/color.h" |
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#include <linux/list.h> |
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#include "util/evlist.h" // for struct evsel_str_handler |
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#include "util/evsel.h" |
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#include <linux/kernel.h> |
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#include <linux/rbtree.h> |
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#include <linux/time64.h> |
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#include <linux/zalloc.h> |
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#include "util/symbol.h" |
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#include "util/thread.h" |
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#include "util/callchain.h" |
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#include "perf.h" |
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#include "util/header.h" |
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#include <subcmd/pager.h> |
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#include <subcmd/parse-options.h> |
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#include "util/parse-events.h" |
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#include "util/event.h" |
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#include "util/session.h" |
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#include "util/svghelper.h" |
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#include "util/tool.h" |
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#include "util/data.h" |
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#include "util/debug.h" |
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#include <linux/err.h> |
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#ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE |
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FILE *open_memstream(char **ptr, size_t *sizeloc); |
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#endif |
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#define SUPPORT_OLD_POWER_EVENTS 1 |
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#define PWR_EVENT_EXIT -1 |
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struct per_pid; |
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struct power_event; |
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struct wake_event; |
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struct timechart { |
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struct perf_tool tool; |
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struct per_pid *all_data; |
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struct power_event *power_events; |
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struct wake_event *wake_events; |
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int proc_num; |
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unsigned int numcpus; |
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u64 min_freq, /* Lowest CPU frequency seen */ |
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max_freq, /* Highest CPU frequency seen */ |
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turbo_frequency, |
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first_time, last_time; |
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bool power_only, |
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tasks_only, |
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with_backtrace, |
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topology; |
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bool force; |
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/* IO related settings */ |
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bool io_only, |
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skip_eagain; |
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u64 io_events; |
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u64 min_time, |
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merge_dist; |
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}; |
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struct per_pidcomm; |
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struct cpu_sample; |
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struct io_sample; |
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/* |
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* Datastructure layout: |
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* We keep an list of "pid"s, matching the kernels notion of a task struct. |
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* Each "pid" entry, has a list of "comm"s. |
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* this is because we want to track different programs different, while |
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* exec will reuse the original pid (by design). |
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* Each comm has a list of samples that will be used to draw |
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* final graph. |
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*/ |
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struct per_pid { |
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struct per_pid *next; |
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int pid; |
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int ppid; |
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u64 start_time; |
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u64 end_time; |
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u64 total_time; |
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u64 total_bytes; |
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int display; |
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struct per_pidcomm *all; |
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struct per_pidcomm *current; |
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}; |
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struct per_pidcomm { |
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struct per_pidcomm *next; |
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u64 start_time; |
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u64 end_time; |
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u64 total_time; |
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u64 max_bytes; |
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u64 total_bytes; |
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int Y; |
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int display; |
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long state; |
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u64 state_since; |
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char *comm; |
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struct cpu_sample *samples; |
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struct io_sample *io_samples; |
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}; |
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struct sample_wrapper { |
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struct sample_wrapper *next; |
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u64 timestamp; |
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unsigned char data[]; |
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}; |
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#define TYPE_NONE 0 |
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#define TYPE_RUNNING 1 |
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#define TYPE_WAITING 2 |
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#define TYPE_BLOCKED 3 |
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struct cpu_sample { |
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struct cpu_sample *next; |
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u64 start_time; |
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u64 end_time; |
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int type; |
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int cpu; |
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const char *backtrace; |
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}; |
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enum { |
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IOTYPE_READ, |
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IOTYPE_WRITE, |
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IOTYPE_SYNC, |
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IOTYPE_TX, |
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IOTYPE_RX, |
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IOTYPE_POLL, |
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}; |
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struct io_sample { |
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struct io_sample *next; |
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u64 start_time; |
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u64 end_time; |
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u64 bytes; |
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int type; |
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int fd; |
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int err; |
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int merges; |
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}; |
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#define CSTATE 1 |
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#define PSTATE 2 |
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struct power_event { |
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struct power_event *next; |
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int type; |
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int state; |
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u64 start_time; |
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u64 end_time; |
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int cpu; |
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}; |
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struct wake_event { |
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struct wake_event *next; |
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int waker; |
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int wakee; |
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u64 time; |
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const char *backtrace; |
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}; |
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struct process_filter { |
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char *name; |
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int pid; |
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struct process_filter *next; |
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}; |
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static struct process_filter *process_filter; |
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static struct per_pid *find_create_pid(struct timechart *tchart, int pid) |
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{ |
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struct per_pid *cursor = tchart->all_data; |
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while (cursor) { |
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if (cursor->pid == pid) |
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return cursor; |
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cursor = cursor->next; |
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} |
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cursor = zalloc(sizeof(*cursor)); |
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assert(cursor != NULL); |
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cursor->pid = pid; |
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cursor->next = tchart->all_data; |
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tchart->all_data = cursor; |
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return cursor; |
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} |
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static void pid_set_comm(struct timechart *tchart, int pid, char *comm) |
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{ |
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struct per_pid *p; |
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struct per_pidcomm *c; |
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p = find_create_pid(tchart, pid); |
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c = p->all; |
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while (c) { |
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if (c->comm && strcmp(c->comm, comm) == 0) { |
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p->current = c; |
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return; |
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} |
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if (!c->comm) { |
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c->comm = strdup(comm); |
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p->current = c; |
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return; |
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} |
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c = c->next; |
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} |
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c = zalloc(sizeof(*c)); |
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assert(c != NULL); |
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c->comm = strdup(comm); |
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p->current = c; |
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c->next = p->all; |
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p->all = c; |
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} |
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static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp) |
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{ |
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struct per_pid *p, *pp; |
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p = find_create_pid(tchart, pid); |
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pp = find_create_pid(tchart, ppid); |
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p->ppid = ppid; |
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if (pp->current && pp->current->comm && !p->current) |
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pid_set_comm(tchart, pid, pp->current->comm); |
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p->start_time = timestamp; |
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if (p->current && !p->current->start_time) { |
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p->current->start_time = timestamp; |
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p->current->state_since = timestamp; |
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} |
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} |
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static void pid_exit(struct timechart *tchart, int pid, u64 timestamp) |
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{ |
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struct per_pid *p; |
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p = find_create_pid(tchart, pid); |
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p->end_time = timestamp; |
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if (p->current) |
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p->current->end_time = timestamp; |
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} |
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static void pid_put_sample(struct timechart *tchart, int pid, int type, |
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unsigned int cpu, u64 start, u64 end, |
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const char *backtrace) |
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{ |
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struct per_pid *p; |
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struct per_pidcomm *c; |
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struct cpu_sample *sample; |
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p = find_create_pid(tchart, pid); |
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c = p->current; |
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if (!c) { |
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c = zalloc(sizeof(*c)); |
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assert(c != NULL); |
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p->current = c; |
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c->next = p->all; |
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p->all = c; |
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} |
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sample = zalloc(sizeof(*sample)); |
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assert(sample != NULL); |
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sample->start_time = start; |
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sample->end_time = end; |
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sample->type = type; |
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sample->next = c->samples; |
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sample->cpu = cpu; |
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sample->backtrace = backtrace; |
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c->samples = sample; |
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if (sample->type == TYPE_RUNNING && end > start && start > 0) { |
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c->total_time += (end-start); |
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p->total_time += (end-start); |
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} |
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if (c->start_time == 0 || c->start_time > start) |
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c->start_time = start; |
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if (p->start_time == 0 || p->start_time > start) |
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p->start_time = start; |
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} |
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#define MAX_CPUS 4096 |
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static u64 cpus_cstate_start_times[MAX_CPUS]; |
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static int cpus_cstate_state[MAX_CPUS]; |
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static u64 cpus_pstate_start_times[MAX_CPUS]; |
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static u64 cpus_pstate_state[MAX_CPUS]; |
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static int process_comm_event(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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struct timechart *tchart = container_of(tool, struct timechart, tool); |
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pid_set_comm(tchart, event->comm.tid, event->comm.comm); |
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return 0; |
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} |
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static int process_fork_event(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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struct timechart *tchart = container_of(tool, struct timechart, tool); |
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pid_fork(tchart, event->fork.pid, event->fork.ppid, event->fork.time); |
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return 0; |
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} |
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static int process_exit_event(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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struct timechart *tchart = container_of(tool, struct timechart, tool); |
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pid_exit(tchart, event->fork.pid, event->fork.time); |
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return 0; |
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} |
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#ifdef SUPPORT_OLD_POWER_EVENTS |
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static int use_old_power_events; |
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#endif |
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static void c_state_start(int cpu, u64 timestamp, int state) |
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{ |
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cpus_cstate_start_times[cpu] = timestamp; |
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cpus_cstate_state[cpu] = state; |
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} |
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static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp) |
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{ |
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struct power_event *pwr = zalloc(sizeof(*pwr)); |
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if (!pwr) |
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return; |
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pwr->state = cpus_cstate_state[cpu]; |
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pwr->start_time = cpus_cstate_start_times[cpu]; |
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pwr->end_time = timestamp; |
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pwr->cpu = cpu; |
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pwr->type = CSTATE; |
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pwr->next = tchart->power_events; |
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tchart->power_events = pwr; |
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} |
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static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq) |
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{ |
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struct power_event *pwr; |
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if (new_freq > 8000000) /* detect invalid data */ |
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return; |
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pwr = zalloc(sizeof(*pwr)); |
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if (!pwr) |
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return; |
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pwr->state = cpus_pstate_state[cpu]; |
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pwr->start_time = cpus_pstate_start_times[cpu]; |
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pwr->end_time = timestamp; |
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pwr->cpu = cpu; |
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pwr->type = PSTATE; |
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pwr->next = tchart->power_events; |
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if (!pwr->start_time) |
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pwr->start_time = tchart->first_time; |
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tchart->power_events = pwr; |
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cpus_pstate_state[cpu] = new_freq; |
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cpus_pstate_start_times[cpu] = timestamp; |
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if ((u64)new_freq > tchart->max_freq) |
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tchart->max_freq = new_freq; |
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if (new_freq < tchart->min_freq || tchart->min_freq == 0) |
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tchart->min_freq = new_freq; |
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if (new_freq == tchart->max_freq - 1000) |
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tchart->turbo_frequency = tchart->max_freq; |
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} |
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static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp, |
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int waker, int wakee, u8 flags, const char *backtrace) |
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{ |
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struct per_pid *p; |
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struct wake_event *we = zalloc(sizeof(*we)); |
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if (!we) |
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return; |
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we->time = timestamp; |
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we->waker = waker; |
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we->backtrace = backtrace; |
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if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ)) |
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we->waker = -1; |
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we->wakee = wakee; |
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we->next = tchart->wake_events; |
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tchart->wake_events = we; |
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p = find_create_pid(tchart, we->wakee); |
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if (p && p->current && p->current->state == TYPE_NONE) { |
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p->current->state_since = timestamp; |
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p->current->state = TYPE_WAITING; |
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} |
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if (p && p->current && p->current->state == TYPE_BLOCKED) { |
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pid_put_sample(tchart, p->pid, p->current->state, cpu, |
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p->current->state_since, timestamp, NULL); |
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p->current->state_since = timestamp; |
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p->current->state = TYPE_WAITING; |
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} |
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} |
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static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp, |
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int prev_pid, int next_pid, u64 prev_state, |
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const char *backtrace) |
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{ |
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struct per_pid *p = NULL, *prev_p; |
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prev_p = find_create_pid(tchart, prev_pid); |
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p = find_create_pid(tchart, next_pid); |
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if (prev_p->current && prev_p->current->state != TYPE_NONE) |
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pid_put_sample(tchart, prev_pid, TYPE_RUNNING, cpu, |
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prev_p->current->state_since, timestamp, |
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backtrace); |
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if (p && p->current) { |
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if (p->current->state != TYPE_NONE) |
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pid_put_sample(tchart, next_pid, p->current->state, cpu, |
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p->current->state_since, timestamp, |
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backtrace); |
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p->current->state_since = timestamp; |
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p->current->state = TYPE_RUNNING; |
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} |
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if (prev_p->current) { |
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prev_p->current->state = TYPE_NONE; |
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prev_p->current->state_since = timestamp; |
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if (prev_state & 2) |
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prev_p->current->state = TYPE_BLOCKED; |
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if (prev_state == 0) |
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prev_p->current->state = TYPE_WAITING; |
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} |
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} |
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static const char *cat_backtrace(union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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struct addr_location al; |
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unsigned int i; |
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char *p = NULL; |
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size_t p_len; |
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u8 cpumode = PERF_RECORD_MISC_USER; |
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struct addr_location tal; |
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struct ip_callchain *chain = sample->callchain; |
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FILE *f = open_memstream(&p, &p_len); |
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if (!f) { |
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perror("open_memstream error"); |
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return NULL; |
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} |
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if (!chain) |
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goto exit; |
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if (machine__resolve(machine, &al, sample) < 0) { |
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fprintf(stderr, "problem processing %d event, skipping it.\n", |
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event->header.type); |
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goto exit; |
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} |
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for (i = 0; i < chain->nr; i++) { |
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u64 ip; |
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if (callchain_param.order == ORDER_CALLEE) |
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ip = chain->ips[i]; |
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else |
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ip = chain->ips[chain->nr - i - 1]; |
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if (ip >= PERF_CONTEXT_MAX) { |
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switch (ip) { |
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case PERF_CONTEXT_HV: |
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cpumode = PERF_RECORD_MISC_HYPERVISOR; |
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break; |
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case PERF_CONTEXT_KERNEL: |
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cpumode = PERF_RECORD_MISC_KERNEL; |
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break; |
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case PERF_CONTEXT_USER: |
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cpumode = PERF_RECORD_MISC_USER; |
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break; |
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default: |
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pr_debug("invalid callchain context: " |
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"%"PRId64"\n", (s64) ip); |
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/* |
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* It seems the callchain is corrupted. |
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* Discard all. |
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*/ |
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zfree(&p); |
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goto exit_put; |
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} |
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continue; |
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} |
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tal.filtered = 0; |
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if (thread__find_symbol(al.thread, cpumode, ip, &tal)) |
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fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name); |
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else |
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fprintf(f, "..... %016" PRIx64 "\n", ip); |
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} |
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exit_put: |
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addr_location__put(&al); |
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exit: |
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fclose(f); |
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return p; |
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} |
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typedef int (*tracepoint_handler)(struct timechart *tchart, |
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struct evsel *evsel, |
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struct perf_sample *sample, |
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const char *backtrace); |
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static int process_sample_event(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct evsel *evsel, |
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struct machine *machine) |
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{ |
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struct timechart *tchart = container_of(tool, struct timechart, tool); |
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if (evsel->core.attr.sample_type & PERF_SAMPLE_TIME) { |
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if (!tchart->first_time || tchart->first_time > sample->time) |
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tchart->first_time = sample->time; |
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if (tchart->last_time < sample->time) |
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tchart->last_time = sample->time; |
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} |
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if (evsel->handler != NULL) { |
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tracepoint_handler f = evsel->handler; |
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return f(tchart, evsel, sample, |
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cat_backtrace(event, sample, machine)); |
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} |
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return 0; |
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} |
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static int |
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process_sample_cpu_idle(struct timechart *tchart __maybe_unused, |
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struct evsel *evsel, |
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struct perf_sample *sample, |
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const char *backtrace __maybe_unused) |
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{ |
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u32 state = evsel__intval(evsel, sample, "state"); |
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u32 cpu_id = evsel__intval(evsel, sample, "cpu_id"); |
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if (state == (u32)PWR_EVENT_EXIT) |
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c_state_end(tchart, cpu_id, sample->time); |
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else |
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c_state_start(cpu_id, sample->time, state); |
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return 0; |
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} |
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static int |
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process_sample_cpu_frequency(struct timechart *tchart, |
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struct evsel *evsel, |
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struct perf_sample *sample, |
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const char *backtrace __maybe_unused) |
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{ |
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u32 state = evsel__intval(evsel, sample, "state"); |
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u32 cpu_id = evsel__intval(evsel, sample, "cpu_id"); |
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p_state_change(tchart, cpu_id, sample->time, state); |
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return 0; |
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} |
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static int |
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process_sample_sched_wakeup(struct timechart *tchart, |
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struct evsel *evsel, |
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struct perf_sample *sample, |
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const char *backtrace) |
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{ |
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u8 flags = evsel__intval(evsel, sample, "common_flags"); |
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int waker = evsel__intval(evsel, sample, "common_pid"); |
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int wakee = evsel__intval(evsel, sample, "pid"); |
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sched_wakeup(tchart, sample->cpu, sample->time, waker, wakee, flags, backtrace); |
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return 0; |
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} |
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static int |
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process_sample_sched_switch(struct timechart *tchart, |
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struct evsel *evsel, |
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struct perf_sample *sample, |
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const char *backtrace) |
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{ |
|
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, &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); |
|
}
|
|
|