cregit-Linux how code gets into the kernel

Release 4.7 tools/perf/builtin-report.c

Directory: tools/perf
/*
 * builtin-report.c
 *
 * Builtin report command: Analyze the perf.data input file,
 * look up and read DSOs and symbol information and display
 * a histogram of results, along various sorting keys.
 */
#include "builtin.h"

#include "util/util.h"
#include "util/cache.h"

#include "util/annotate.h"
#include "util/color.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include "util/symbol.h"
#include "util/callchain.h"
#include "util/strlist.h"
#include "util/values.h"

#include "perf.h"
#include "util/debug.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/header.h"
#include "util/session.h"
#include "util/tool.h"

#include <subcmd/parse-options.h>
#include <subcmd/exec-cmd.h>
#include "util/parse-events.h"

#include "util/thread.h"
#include "util/sort.h"
#include "util/hist.h"
#include "util/data.h"
#include "arch/common.h"

#include "util/auxtrace.h"

#include <dlfcn.h>
#include <linux/bitmap.h>
#include <linux/stringify.h>


struct report {
	
struct perf_tool	tool;
	
struct perf_session	*session;
	


bool			use_tui, use_gtk, use_stdio;
	
bool			show_full_info;
	
bool			show_threads;
	
bool			inverted_callchain;
	
bool			mem_mode;
	
bool			header;
	
bool			header_only;
	
bool			nonany_branch_mode;
	
int			max_stack;
	
struct perf_read_values	show_threads_values;
	
const char		*pretty_printing_style;
	
const char		*cpu_list;
	
const char		*symbol_filter_str;
	
float			min_percent;
	
u64			nr_entries;
	
u64			queue_size;
	
int			socket_filter;
	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};


static int report__config(const char *var, const char *value, void *cb) { struct report *rep = cb; if (!strcmp(var, "report.group")) { symbol_conf.event_group = perf_config_bool(var, value); return 0; } if (!strcmp(var, "report.percent-limit")) { double pcnt = strtof(value, NULL); rep->min_percent = pcnt; callchain_param.min_percent = pcnt; return 0; } if (!strcmp(var, "report.children")) { symbol_conf.cumulate_callchain = perf_config_bool(var, value); return 0; } if (!strcmp(var, "report.queue-size")) { rep->queue_size = perf_config_u64(var, value); return 0; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim8659.31%450.00%
jiri olsajiri olsa3322.76%112.50%
stephane eranianstephane eranian2416.55%112.50%
arnaldo carvalho de meloarnaldo carvalho de melo10.69%112.50%
wang nanwang nan10.69%112.50%
Total145100.00%8100.00%


static int hist_iter__report_callback(struct hist_entry_iter *iter, struct addr_location *al, bool single, void *arg) { int err = 0; struct report *rep = arg; struct hist_entry *he = iter->he; struct perf_evsel *evsel = iter->evsel; struct mem_info *mi; struct branch_info *bi; if (!ui__has_annotation()) return 0; hist__account_cycles(iter->sample->branch_stack, al, iter->sample, rep->nonany_branch_mode); if (sort__mode == SORT_MODE__BRANCH) { bi = he->branch_info; err = addr_map_symbol__inc_samples(&bi->from, evsel->idx); if (err) goto out; err = addr_map_symbol__inc_samples(&bi->to, evsel->idx); } else if (rep->mem_mode) { mi = he->mem_info; err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx); if (err) goto out; err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); } else if (symbol_conf.cumulate_callchain) { if (single) err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); } else { err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); } out: return err; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim22392.15%150.00%
andi kleenandi kleen197.85%150.00%
Total242100.00%2100.00%


static int process_sample_event(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine) { struct report *rep = container_of(tool, struct report, tool); struct addr_location al; struct hist_entry_iter iter = { .evsel = evsel, .sample = sample, .hide_unresolved = symbol_conf.hide_unresolved, .add_entry_cb = hist_iter__report_callback, }; int ret = 0; if (machine__resolve(machine, &al, sample) < 0) { pr_debug("problem processing %d event, skipping it.\n", event->header.type); return -1; } if (symbol_conf.hide_unresolved && al.sym == NULL) goto out_put; if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) goto out_put; if (sort__mode == SORT_MODE__BRANCH) { /* * A non-synthesized event might not have a branch stack if * branch stacks have been synthesized (using itrace options). */ if (!sample->branch_stack) goto out_put; iter.ops = &hist_iter_branch; } else if (rep->mem_mode) { iter.ops = &hist_iter_mem; } else if (symbol_conf.cumulate_callchain) { iter.ops = &hist_iter_cumulative; } else { iter.ops = &hist_iter_normal; } if (al.map != NULL) al.map->dso->hit = 1; ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep); if (ret < 0) pr_debug("problem adding hist entry, skipping event\n"); out_put: addr_location__put(&al); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo11642.18%2152.50%
namhyung kimnamhyung kim8631.27%820.00%
ingo molnaringo molnar217.64%37.50%
adrian hunteradrian hunter196.91%12.50%
anton blanchardanton blanchard145.09%12.50%
stephane eranianstephane eranian103.64%25.00%
roberto agostino vitilloroberto agostino vitillo62.18%12.50%
eric b munsoneric b munson10.36%12.50%
hirofumi ogawahirofumi ogawa10.36%12.50%
peter zijlstrapeter zijlstra10.36%12.50%
Total275100.00%40100.00%


static int process_read_event(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample __maybe_unused, struct perf_evsel *evsel, struct machine *machine __maybe_unused) { struct report *rep = container_of(tool, struct report, tool); if (rep->show_threads) { const char *name = evsel ? perf_evsel__name(evsel) : "unknown"; perf_read_values_add_value(&rep->show_threads_values, event->read.pid, event->read.tid, event->read.id, name, event->read.value); } dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid, evsel ? perf_evsel__name(evsel) : "FAIL", event->read.value); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo4934.75%1263.16%
brice goglinbrice goglin4834.04%15.26%
peter zijlstrapeter zijlstra3826.95%210.53%
ingo molnaringo molnar32.13%210.53%
irina tirdeairina tirdea21.42%15.26%
frederic weisbeckerfrederic weisbecker10.71%15.26%
Total141100.00%19100.00%

/* For pipe mode, sample_type is not currently set */
static int report__setup_sample_type(struct report *rep) { struct perf_session *session = rep->session; u64 sample_type = perf_evlist__combined_sample_type(session->evlist); bool is_pipe = perf_data_file__is_pipe(session->file); if (session->itrace_synth_opts->callchain || (!is_pipe && perf_header__has_feat(&session->header, HEADER_AUXTRACE) && !session->itrace_synth_opts->set)) sample_type |= PERF_SAMPLE_CALLCHAIN; if (session->itrace_synth_opts->last_branch) sample_type |= PERF_SAMPLE_BRANCH_STACK; if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { if (perf_hpp_list.parent) { ui__error("Selected --sort parent, but no " "callchain data. Did you call " "'perf record' without -g?\n"); return -EINVAL; } if (symbol_conf.use_callchain) { ui__error("Selected -g or --branch-history but no " "callchain data. Did\n" "you call 'perf record' without -g?\n"); return -1; } } else if (!callchain_param.enabled && callchain_param.mode != CHAIN_NONE && !symbol_conf.use_callchain) { symbol_conf.use_callchain = true; if (callchain_register_param(&callchain_param) < 0) { ui__error("Can't register callchain params.\n"); return -EINVAL; } } if (symbol_conf.cumulate_callchain) { /* Silently ignore if callchain is missing */ if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) { symbol_conf.cumulate_callchain = false; perf_hpp__cancel_cumulate(); } } if (sort__mode == SORT_MODE__BRANCH) { if (!is_pipe && !(sample_type & PERF_SAMPLE_BRANCH_STACK)) { ui__error("Selected -b but no branch data. " "Did you call perf record without -b?\n"); return -1; } } if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { if ((sample_type & PERF_SAMPLE_REGS_USER) && (sample_type & PERF_SAMPLE_STACK_USER)) callchain_param.record_mode = CALLCHAIN_DWARF; else if (sample_type & PERF_SAMPLE_BRANCH_STACK) callchain_param.record_mode = CALLCHAIN_LBR; else callchain_param.record_mode = CALLCHAIN_FP; } /* ??? handle more cases than just ANY? */ if (!(perf_evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY)) rep->nonany_branch_mode = true; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim7723.84%412.12%
frederic weisbeckerfrederic weisbecker4814.86%26.06%
adrian hunteradrian hunter4714.55%39.09%
arnaldo carvalho de meloarnaldo carvalho de melo4513.93%1030.30%
andi kleenandi kleen237.12%26.06%
roberto agostino vitilloroberto agostino vitillo237.12%13.03%
ingo molnaringo molnar195.88%26.06%
jiri olsajiri olsa144.33%26.06%
kan liangkan liang134.02%13.03%
peter zijlstrapeter zijlstra92.79%412.12%
david aherndavid ahern41.24%13.03%
stephane eranianstephane eranian10.31%13.03%
Total323100.00%33100.00%


static void sig_handler(int sig __maybe_unused) { session_done = 1; }

Contributors

PersonTokensPropCommitsCommitProp
tom zanussitom zanussi1178.57%133.33%
arnaldo carvalho de meloarnaldo carvalho de melo214.29%133.33%
irina tirdeairina tirdea17.14%133.33%
Total14100.00%3100.00%


static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep, const char *evname, FILE *fp) { size_t ret; char unit; unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; u64 nr_events = hists->stats.total_period; struct perf_evsel *evsel = hists_to_evsel(hists); char buf[512]; size_t size = sizeof(buf); int socked_id = hists->socket_filter; if (symbol_conf.filter_relative) { nr_samples = hists->stats.nr_non_filtered_samples; nr_events = hists->stats.total_non_filtered_period; } if (perf_evsel__is_group_event(evsel)) { struct perf_evsel *pos; perf_evsel__group_desc(evsel, buf, size); evname = buf; for_each_group_member(pos, evsel) { const struct hists *pos_hists = evsel__hists(pos); if (symbol_conf.filter_relative) { nr_samples += pos_hists->stats.nr_non_filtered_samples; nr_events += pos_hists->stats.total_non_filtered_period; } else { nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; nr_events += pos_hists->stats.total_period; } } } nr_samples = convert_unit(nr_samples, &unit); ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit); if (evname != NULL) ret += fprintf(fp, " of event '%s'", evname); if (symbol_conf.show_ref_callgraph && strstr(evname, "call-graph=no")) { ret += fprintf(fp, ", show reference callgraph"); } if (rep->mem_mode) { ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events); ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order); } else ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); if (socked_id > -1) ret += fprintf(fp, "\n# Processor Socket: %d", socked_id); return ret + fprintf(fp, "\n#\n"); }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim12436.58%321.43%
arnaldo carvalho de meloarnaldo carvalho de melo10330.38%428.57%
kan liangkan liang4914.45%321.43%
stephane eranianstephane eranian3510.32%17.14%
ashay raneashay rane236.78%17.14%
yunlong songyunlong song30.88%17.14%
jiri olsajiri olsa20.59%17.14%
Total339100.00%14100.00%


static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, struct report *rep, const char *help) { struct perf_evsel *pos; fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", evlist->stats.total_lost_samples); evlist__for_each(evlist, pos) { struct hists *hists = evsel__hists(pos); const char *evname = perf_evsel__name(pos); if (symbol_conf.event_group && !perf_evsel__is_group_leader(pos)) continue; hists__fprintf_nr_sample_events(hists, rep, evname, stdout); hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout); fprintf(stdout, "\n\n"); } if (sort_order == NULL && parent_pattern == default_parent_pattern) fprintf(stdout, "#\n# (%s)\n#\n", help); if (rep->show_threads) { bool style = !strcmp(rep->pretty_printing_style, "raw"); perf_read_values_display(stdout, &rep->show_threads_values, style); perf_read_values_destroy(&rep->show_threads_values); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo14781.67%1168.75%
namhyung kimnamhyung kim1810.00%318.75%
kan liangkan liang126.67%16.25%
he kuanghe kuang31.67%16.25%
Total180100.00%16100.00%


static void report__warn_kptr_restrict(const struct report *rep) { struct map *kernel_map = machine__kernel_map(&rep->session->machines.host); struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; if (kernel_map == NULL || (kernel_map->dso->hit && (kernel_kmap->ref_reloc_sym == NULL || kernel_kmap->ref_reloc_sym->addr == 0))) { const char *desc = "As no suitable kallsyms nor vmlinux was found, kernel samples\n" "can't be resolved."; if (kernel_map) { const struct dso *kdso = kernel_map->dso; if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { desc = "If some relocation was applied (e.g. " "kexec) symbols may be misresolved."; } } ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" "Samples in kernel modules can't be resolved as well.\n\n", desc); } }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo12596.90%266.67%
wang nanwang nan43.10%133.33%
Total129100.00%3100.00%


static int report__gtk_browse_hists(struct report *rep, const char *help) { int (*hist_browser)(struct perf_evlist *evlist, const char *help, struct hist_browser_timer *timer, float min_pcnt); hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists"); if (hist_browser == NULL) { ui__error("GTK browser not found!\n"); return -1; } return hist_browser(rep->session->evlist, help, NULL, rep->min_percent); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo85100.00%1100.00%
Total85100.00%1100.00%


static int report__browse_hists(struct report *rep) { int ret; struct perf_session *session = rep->session; struct perf_evlist *evlist = session->evlist; const char *help = perf_tip(system_path(TIPDIR)); if (help == NULL) { /* fallback for people who don't install perf ;-) */ help = perf_tip(DOCDIR); if (help == NULL) help = "Cannot load tips.txt file, please install perf!"; } switch (use_browser) { case 1: ret = perf_evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent, &session->header.env); /* * Usually "ret" is the last pressed key, and we only * care if the key notifies us to switch data file. */ if (ret != K_SWITCH_INPUT_DATA) ret = 0; break; case 2: ret = report__gtk_browse_hists(rep, help); break; default: ret = perf_evlist__tty_browse_hists(evlist, rep, help); break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo11076.92%133.33%
namhyung kimnamhyung kim3323.08%266.67%
Total143100.00%3100.00%


static int report__collapse_hists(struct report *rep) { struct ui_progress prog; struct perf_evsel *pos; int ret = 0; ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); evlist__for_each(rep->session->evlist, pos) { struct hists *hists = evsel__hists(pos); if (pos->idx == 0) hists->symbol_filter_str = rep->symbol_filter_str; hists->socket_filter = rep->socket_filter; ret = hists__collapse_resort(hists, &prog); if (ret < 0) break; /* Non-group events are considered as leader */ if (symbol_conf.event_group && !perf_evsel__is_group_leader(pos)) { struct hists *leader_hists = evsel__hists(pos->leader); hists__match(leader_hists, hists); hists__link(leader_hists, hists); } } ui_progress__finish(); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo11479.72%350.00%
namhyung kimnamhyung kim2114.69%233.33%
kan liangkan liang85.59%116.67%
Total143100.00%6100.00%


static void report__output_resort(struct report *rep) { struct ui_progress prog; struct perf_evsel *pos; ui_progress__init(&prog, rep->nr_entries, "Sorting events for output..."); evlist__for_each(rep->session->evlist, pos) perf_evsel__output_resort(pos, &prog); ui_progress__finish(); }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim4897.96%150.00%
jiri olsajiri olsa12.04%150.00%
Total49100.00%2100.00%


static int __cmd_report(struct report *rep) { int ret; struct perf_session *session = rep->session; struct perf_evsel *pos; struct perf_data_file *file = session->file; signal(SIGINT, sig_handler); if (rep->cpu_list) { ret = perf_session__cpu_bitmap(session, rep->cpu_list, rep->cpu_bitmap); if (ret) { ui__error("failed to set cpu bitmap\n"); return ret; } } if (rep->show_threads) perf_read_values_init(&rep->show_threads_values); ret = report__setup_sample_type(rep); if (ret) { /* report__setup_sample_type() already showed error message */ return ret; } ret = perf_session__process_events(session); if (ret) { ui__error("failed to process sample\n"); return ret; } report__warn_kptr_restrict(rep); evlist__for_each(session->evlist, pos) rep->nr_entries += evsel__hists(pos)->nr_entries; if (use_browser == 0) { if (verbose > 3) perf_session__fprintf(session, stdout); if (verbose > 2) perf_session__fprintf_dsos(session, stdout); if (dump_trace) { perf_session__fprintf_nr_events(session, stdout); perf_evlist__fprintf_nr_events(session->evlist, stdout); return 0; } } ret = report__collapse_hists(rep); if (ret) { ui__error("failed to process hist entry\n"); return ret; } if (session_done()) return 0; /* * recalculate number of entries after collapsing since it * might be changed during the collapse phase. */ rep->nr_entries = 0; evlist__for_each(session->evlist, pos) rep->nr_entries += evsel__hists(pos)->nr_entries; if (rep->nr_entries == 0) { ui__error("The %s file has no samples!\n", file->path); return 0; } report__output_resort(rep); return report__browse_hists(rep); }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim9632.00%1122.00%
arnaldo carvalho de meloarnaldo carvalho de melo9030.00%2142.00%
jiri olsajiri olsa3612.00%36.00%
ingo molnaringo molnar237.67%510.00%
anton blanchardanton blanchard217.00%12.00%
frederic weisbeckerfrederic weisbecker93.00%12.00%
tom zanussitom zanussi72.33%12.00%
eric b munsoneric b munson62.00%12.00%
peter zijlstrapeter zijlstra41.33%24.00%
stephane eranianstephane eranian41.33%12.00%
yanmin zhangyanmin zhang20.67%12.00%
brice goglinbrice goglin10.33%12.00%
david aherndavid ahern10.33%12.00%
Total300100.00%50100.00%


static int report_parse_callchain_opt(const struct option *opt, const char *arg, int unset) { struct callchain_param *callchain = opt->value; callchain->enabled = !unset; /* * --no-call-graph */ if (unset) { symbol_conf.use_callchain = false; callchain->mode = CHAIN_NONE; return 0; } return parse_callchain_report_opt(arg); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo3859.38%457.14%
frederic weisbeckerfrederic weisbecker2437.50%228.57%
don zickusdon zickus23.12%114.29%
Total64100.00%7100.00%


int report_parse_ignore_callees_opt(const struct option *opt __maybe_unused, const char *arg, int unset __maybe_unused) { if (arg) { int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED); if (err) { char buf[BUFSIZ]; regerror(err, &ignore_callees_regex, buf, sizeof(buf)); pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf); return -1; } have_ignore_callees = 1; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
greg pricegreg price87100.00%1100.00%
Total87100.00%1100.00%


static int parse_branch_mode(const struct option *opt __maybe_unused, const char *str __maybe_unused, int unset) { int *branch_mode = opt->value; *branch_mode = !unset; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
stephane eranianstephane eranian2769.23%133.33%
namhyung kimnamhyung kim1025.64%133.33%
irina tirdeairina tirdea25.13%133.33%
Total39100.00%3100.00%


static int parse_percent_limit(const struct option *opt, const char *str, int unset __maybe_unused) { struct report *rep = opt->value; double pcnt = strtof(str, NULL); rep->min_percent = pcnt; callchain_param.min_percent = pcnt; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim5498.18%266.67%
arnaldo carvalho de meloarnaldo carvalho de melo11.82%133.33%
Total55100.00%3100.00%

#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" CALLCHAIN_REPORT_HELP "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) { struct perf_session *session; struct itrace_synth_opts itrace_synth_opts = { .set = 0, }; struct stat st; bool has_br_stack = false; int branch_mode = -1; bool branch_call_mode = false; char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; const char * const report_usage[] = { "perf report [<options>]", NULL }; struct report report = { .tool = { .sample = process_sample_event, .mmap = perf_event__process_mmap, .mmap2 = perf_event__process_mmap2, .comm = perf_event__process_comm, .exit = perf_event__process_exit, .fork = perf_event__process_fork, .lost = perf_event__process_lost, .read = process_read_event, .attr = perf_event__process_attr, .tracing_data = perf_event__process_tracing_data, .build_id = perf_event__process_build_id, .id_index = perf_event__process_id_index, .auxtrace_info = perf_event__process_auxtrace_info, .auxtrace = perf_event__process_auxtrace, .ordered_events = true, .ordering_requires_timestamps = true, }, .max_stack = PERF_MAX_STACK_DEPTH, .pretty_printing_style = "normal", .socket_filter = -1, }; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", "input file name"), OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"), OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, "file", "vmlinux pathname"), OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", "kallsyms pathname"), OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, "load module symbols - WARNING: use only with -k and LIVE kernel"), OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, "Show a column with the number of samples"), OPT_BOOLEAN('T', "threads", &report.show_threads, "Show per-thread event counters"), OPT_STRING(0, "pretty", &report.pretty_printing_style, "key", "pretty printing style key: normal raw"), OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"), OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"), OPT_BOOLEAN(0, "stdio", &report.use_stdio, "Use the stdio interface"), OPT_BOOLEAN(0, "header", &report.header, "Show data header."), OPT_BOOLEAN(0, "header-only", &report.header_only, "Show only data header."), OPT_STRING('s', "sort", &sort_order, "key[,key2...]", "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." " Please refer the man page for the complete list."), OPT_STRING('F', "fields", &field_order, "key[,keys...]", "output field(s): overhead, period, sample plus all of sort keys"), OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization, "Show sample percentage for different cpu modes"), OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN), OPT_STRING('p', "parent", &parent_pattern, "regex", "regex filter to identify parent, see: '--sort parent'"), OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, "Only display entries with parent-match"), OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param, "print_type,threshold[,print_limit],order,sort_key[,branch],value", report_callchain_help, &report_parse_callchain_opt, callchain_default_opt), OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, "Accumulate callchains of children and show total overhead as well"), OPT_INTEGER(0, "max-stack", &report.max_stack, "Set the maximum stack depth when parsing the callchain, " "anything beyond the specified depth will be ignored. " "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), OPT_BOOLEAN('G', "inverted", &report.inverted_callchain, "alias for inverted call graph"), OPT_CALLBACK(0, "ignore-callees", NULL, "regex", "ignore callees of these functions in call graphs", report_parse_ignore_callees_opt), OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", "only consider symbols in these dsos"), OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", "only consider symbols in these comms"), OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", "only consider symbols in these pids"), OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", "only consider symbols in these tids"), OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", "only consider these symbols"), OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter", "only show symbols that (partially) match with this filter"), OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, "width[,width...]", "don't try to adjust column width, use these fixed values"), OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", "separator for columns, no spaces will be added between " "columns '.' is reserved."), OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved, "Only display entries resolved to a symbol"), OPT_CALLBACK(0, "symfs", NULL, "directory", "Look for files with symbols relative to this directory", symbol__config_symfs), OPT_STRING('C', "cpu", &report.cpu_list, "cpu", "list of cpus to profile"), OPT_BOOLEAN('I', "show-info", &report.show_full_info, "Display extended information about perf.data file"), OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, "Interleave source code with assembly code (default)"), OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, "Display raw encoding of assembly instructions (default)"), OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, "Show a column with the sum of periods"), OPT_BOOLEAN(0, "group", &symbol_conf.event_group, "Show event group information together"), OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "", "use branch records for per branch histogram filling", parse_branch_mode), OPT_BOOLEAN(0, "branch-history", &branch_call_mode, "add last branch records to call history"), OPT_STRING(0, "objdump", &objdump_path, "path", "objdump binary to use for disassembly and annotations"), OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, "Disable symbol demangling"), OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, "Enable kernel symbol demangling"), OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), OPT_CALLBACK(0, "percent-limit", &report, "percent", "Don't show entries under that percent", parse_percent_limit), OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", "how to display percentage of filtered entries", parse_filter_percentage), OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", "Instruction Tracing options", itrace_parse_synth_opts), OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, "Show full source file name path for source lines"), OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph, "Show callgraph from reference event"), OPT_INTEGER(0, "socket-filter", &report.socket_filter, "only show processor socket that match with this filter"), OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, "Show raw trace event output (do not use print fmt or plugins)"), OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, "Show entries in a hierarchy"), OPT_END() }; struct perf_data_file file = { .mode = PERF_DATA_MODE_READ, }; int ret = hists__init(); if (ret < 0) return ret; perf_config(report__config, &report); argc = parse_options(argc, argv, options, report_usage, 0); if (argc) { /* * Special case: if there's an argument left then assume that * it's a symbol filter: */ if (argc > 1) usage_with_options(report_usage, options); report.symbol_filter_str = argv[0]; } if (symbol_conf.vmlinux_name && access(symbol_conf.vmlinux_name, R_OK)) { pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name); return -EINVAL; } if (symbol_conf.kallsyms_name && access(symbol_conf.kallsyms_name, R_OK)) { pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name); return -EINVAL; } if (report.use_stdio) use_browser = 0; else if (report.use_tui) use_browser = 1; else if (report.use_gtk) use_browser = 2; if (report.inverted_callchain) callchain_param.order = ORDER_CALLER; if (symbol_conf.cumulate_callchain && !callchain_param.order_set) callchain_param.order = ORDER_CALLER; if (itrace_synth_opts.callchain && (int)itrace_synth_opts.callchain_sz > report.max_stack) report.max_stack = itrace_synth_opts.callchain_sz; if (!input_name || !strlen(input_name)) { if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) input_name = "-"; else input_name = "perf.data"; } file.path = input_name; file.force = symbol_conf.force; repeat: session = perf_session__new(&file, false, &report.tool); if (session == NULL) return -1; if (report.queue_size) { ordered_events__set_alloc_size(&session->ordered_events, report.queue_size); } session->itrace_synth_opts = &itrace_synth_opts; report.session = session; has_br_stack = perf_header__has_feat(&session->header, HEADER_BRANCH_STACK); if (itrace_synth_opts.last_branch) has_br_stack = true; /* * Branch mode is a tristate: * -1 means default, so decide based on the file having branch data. * 0/1 means the user chose a mode. */ if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) && !branch_call_mode) { sort__mode = SORT_MODE__BRANCH; symbol_conf.cumulate_callchain = false; } if (branch_call_mode) { callchain_param.key = CCKEY_ADDRESS; callchain_param.branch_callstack = 1; symbol_conf.use_callchain = true; callchain_register_param(&callchain_param); if (sort_order == NULL) sort_order = "srcline,symbol,dso"; } if (report.mem_mode) { if (sort__mode == SORT_MODE__BRANCH) { pr_err("branch and mem mode incompatible\n"); goto error; } sort__mode = SORT_MODE__MEMORY; symbol_conf.cumulate_callchain = false; } if (symbol_conf.report_hierarchy) { /* disable incompatible options */ symbol_conf.event_group = false; symbol_conf.cumulate_callchain = false; if (field_order) { pr_err("Error: --hierarchy and --fields options cannot be used together\n"); parse_options_usage(report_usage, options, "F", 1); parse_options_usage(NULL, options, "hierarchy", 0); goto error; } perf_hpp_list.need_collapse = true; } /* Force tty output for header output and per-thread stat. */ if (report.header || report.header_only || report.show_threads) use_browser = 0; if (strcmp(input_name, "-") != 0) setup_browser(true); else use_browser = 0; if (setup_sorting(session->evlist) < 0) { if (sort_order) parse_options_usage(report_usage, options, "s", 1); if (field_order) parse_options_usage(sort_order ? NULL : report_usage, options, "F", 1); goto error; } if (report.header || report.header_only) { perf_session__fprintf_info(session, stdout, report.show_full_info); if (report.header_only) { ret = 0; goto error; } } else if (use_browser == 0) { fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n", stdout); } /* * Only in the TUI browser we are doing integrated annotation, * so don't allocate extra space that won't be used in the stdio * implementation. */ if (ui__has_annotation()) { symbol_conf.priv_size = sizeof(struct annotation); machines__set_symbol_filter(&session->machines, symbol__annotate_init); /* * For searching by name on the "Browse map details". * providing it only in verbose mode not to bloat too * much struct symbol. */ if (verbose) { /* * XXX: Need to provide a less kludgy way to ask for * more space per symbol, the u32 is for the index on * the ui browser. * See symbol__browser_index. */ symbol_conf.priv_size += sizeof(u32); symbol_conf.sort_by_name = true; } } if (symbol__init(&session->header.env) < 0) goto error; sort__setup_elide(stdout); ret = __cmd_report(&report); if (ret == K_SWITCH_INPUT_DATA) { perf_session__delete(session); goto repeat; } else ret = 0; error: perf_session__delete(session); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo40322.16%3124.22%
namhyung kimnamhyung kim35819.68%3225.00%
jiri olsajiri olsa1649.02%64.69%
stephane eranianstephane eranian1347.37%43.12%
adrian hunteradrian hunter945.17%43.12%
ingo molnaringo molnar915.00%86.25%
andi kleenandi kleen894.89%43.12%
david aherndavid ahern613.35%43.12%
li zhangli zhang603.30%10.78%
robert richterrobert richter442.42%10.78%
peter zijlstrapeter zijlstra402.20%43.12%
kan liangkan liang341.87%21.56%
brice goglinbrice goglin261.43%21.56%
pekka j enbergpekka j enberg251.37%10.78%
feng tangfeng tang231.26%10.78%
waiman longwaiman long231.26%10.78%
sam liaosam liao221.21%10.78%
greg pricegreg price150.82%10.78%
anton blanchardanton blanchard150.82%21.56%
maciek borzeckimaciek borzecki140.77%10.78%
avi kivityavi kivity140.77%10.78%
yanmin zhangyanmin zhang120.66%10.78%
frederic weisbeckerfrederic weisbecker120.66%32.34%
mike galbraithmike galbraith110.60%10.78%
roberto agostino vitilloroberto agostino vitillo90.49%10.78%
taeung songtaeung song90.49%21.56%
naohiro aotanaohiro aota60.33%10.78%
he kuanghe kuang50.27%21.56%
tom zanussitom zanussi20.11%10.78%
wang nanwang nan10.05%10.78%
ian munsieian munsie10.05%10.78%
don zickusdon zickus10.05%10.78%
irina tirdeairina tirdea10.05%10.78%
Total1819100.00%128100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo148631.21%7931.35%
namhyung kimnamhyung kim126826.63%5622.22%
jiri olsajiri olsa2625.50%124.76%
stephane eranianstephane eranian2415.06%41.59%
ingo molnaringo molnar1693.55%187.14%
adrian hunteradrian hunter1633.42%83.17%
andi kleenandi kleen1342.81%62.38%
kan liangkan liang1192.50%51.98%
frederic weisbeckerfrederic weisbecker1032.16%93.57%
greg pricegreg price1022.14%10.40%
peter zijlstrapeter zijlstra962.02%124.76%
brice goglinbrice goglin881.85%20.79%
david aherndavid ahern671.41%62.38%
anton blanchardanton blanchard651.37%20.79%
li zhangli zhang601.26%10.40%
robert richterrobert richter440.92%10.40%
roberto agostino vitilloroberto agostino vitillo380.80%10.40%
pekka j enbergpekka j enberg270.57%10.40%
waiman longwaiman long260.55%10.40%
ashay raneashay rane230.48%10.40%
feng tangfeng tang230.48%10.40%
sam liaosam liao220.46%10.40%
tom zanussitom zanussi200.42%10.40%
yanmin zhangyanmin zhang140.29%10.40%
maciek borzeckimaciek borzecki140.29%10.40%
avi kivityavi kivity140.29%10.40%
mike galbraithmike galbraith110.23%10.40%
taeung songtaeung song90.19%20.79%
irina tirdeairina tirdea90.19%20.79%
he kuanghe kuang80.17%31.19%
eric b munsoneric b munson70.15%10.40%
wang nanwang nan60.13%31.19%
naohiro aotanaohiro aota60.13%10.40%
john kacurjohn kacur60.13%20.79%
don zickusdon zickus30.06%10.40%
ian munsieian munsie30.06%10.40%
yunlong songyunlong song30.06%10.40%
josh poimboeufjosh poimboeuf10.02%10.40%
hirofumi ogawahirofumi ogawa10.02%10.40%
Total4761100.00%252100.00%
Directory: tools/perf
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}