cregit-Linux how code gets into the kernel

Release 4.10 tools/perf/builtin-top.c

Directory: tools/perf
/*
 * builtin-top.c
 *
 * Builtin top command: Display a continuously updated profile of
 * any workload, CPU or specific PID.
 *
 * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
 *               2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
 *
 * Improvements and fixes by:
 *
 *   Arjan van de Ven <arjan@linux.intel.com>
 *   Yanmin Zhang <yanmin.zhang@intel.com>
 *   Wu Fengguang <fengguang.wu@intel.com>
 *   Mike Galbraith <efault@gmx.de>
 *   Paul Mackerras <paulus@samba.org>
 *
 * Released under the GPL v2. (and only v2, not any later version)
 */
#include "builtin.h"

#include "perf.h"

#include "util/annotate.h"
#include "util/config.h"
#include "util/color.h"
#include "util/drv_configs.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/machine.h"
#include "util/session.h"
#include "util/symbol.h"
#include "util/thread.h"
#include "util/thread_map.h"
#include "util/top.h"
#include "util/util.h"
#include <linux/rbtree.h>
#include <subcmd/parse-options.h>
#include "util/parse-events.h"
#include "util/cpumap.h"
#include "util/xyarray.h"
#include "util/sort.h"
#include "util/intlist.h"
#include "util/parse-branch-options.h"
#include "arch/common.h"

#include "util/debug.h"

#include <assert.h>
#include <elf.h>
#include <fcntl.h>

#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#include <inttypes.h>

#include <errno.h>
#include <time.h>
#include <sched.h>

#include <sys/syscall.h>
#include <sys/ioctl.h>
#include <poll.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <sys/uio.h>
#include <sys/utsname.h>
#include <sys/mman.h>

#include <linux/stringify.h>
#include <linux/time64.h>
#include <linux/types.h>


static volatile int done;


#define HEADER_LINE_NR  5


static void perf_top__update_print_entries(struct perf_top *top) { top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo1773.91%480.00%
namhyung kimnamhyung kim626.09%120.00%
Total23100.00%5100.00%


static void perf_top__sig_winch(int sig __maybe_unused, siginfo_t *info __maybe_unused, void *arg) { struct perf_top *top = arg; get_term_dimensions(&top->winsize); perf_top__update_print_entries(top); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo3794.87%375.00%
irina tirdeairina tirdea25.13%125.00%
Total39100.00%4100.00%


static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) { struct symbol *sym; struct annotation *notes; struct map *map; int err = -1; if (!he || !he->ms.sym) return -1; sym = he->ms.sym; map = he->ms.map; /* * We can't annotate with just /proc/kallsyms */ if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && !dso__is_kcore(map->dso)) { pr_err("Can't annotate %s: No vmlinux file was found in the " "path\n", sym->name); sleep(1); return -1; } notes = symbol__annotation(sym); if (notes->src != NULL) { pthread_mutex_lock(&notes->lock); goto out_assign; } pthread_mutex_lock(&notes->lock); if (symbol__alloc_hist(sym) < 0) { pthread_mutex_unlock(&notes->lock); pr_err("Not enough memory for annotating '%s' symbol!\n", sym->name); sleep(1); return err; } err = symbol__disassemble(sym, map, NULL, 0); if (err == 0) { out_assign: top->sym_filter_entry = he; } else { char msg[BUFSIZ]; symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); pr_err("Couldn't annotate %s: %s\n", sym->name, msg); } pthread_mutex_unlock(&notes->lock); return err; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo19375.10%1470.00%
mike galbraithmike galbraith4617.90%15.00%
adrian hunteradrian hunter83.11%15.00%
ingo molnaringo molnar83.11%210.00%
jiri olsajiri olsa10.39%15.00%
kirill smelkovkirill smelkov10.39%15.00%
Total257100.00%20100.00%


static void __zero_source_counters(struct hist_entry *he) { struct symbol *sym = he->ms.sym; symbol__annotate_zero_histograms(sym); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo1555.56%266.67%
mike galbraithmike galbraith1244.44%133.33%
Total27100.00%3100.00%


static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) { struct utsname uts; int err = uname(&uts); ui__warning("Out of bounds address found:\n\n" "Addr: %" PRIx64 "\n" "DSO: %s %c\n" "Map: %" PRIx64 "-%" PRIx64 "\n" "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" "Arch: %s\n" "Kernel: %s\n" "Tools: %s\n\n" "Not all samples will be on the annotation output.\n\n" "Please report to linux-kernel@vger.kernel.org\n", ip, map->dso->long_name, dso__symtab_origin(map->dso), map->start, map->end, sym->start, sym->end, sym->binding == STB_GLOBAL ? 'g' : sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, err ? "[unknown]" : uts.machine, err ? "[unknown]" : uts.release, perf_version_string); if (use_browser <= 0) sleep(5); map->erange_warned = true; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo144100.00%1100.00%
Total144100.00%1100.00%


static void perf_top__record_precise_ip(struct perf_top *top, struct hist_entry *he, int counter, u64 ip) { struct annotation *notes; struct symbol *sym = he->ms.sym; int err = 0; if (sym == NULL || (use_browser == 0 && (top->sym_filter_entry == NULL || top->sym_filter_entry->ms.sym != sym))) return; notes = symbol__annotation(sym); if (pthread_mutex_trylock(&notes->lock)) return; err = hist_entry__inc_addr_samples(he, counter, ip); pthread_mutex_unlock(&notes->lock); if (unlikely(err)) { /* * This function is now called with he->hists->lock held. * Release it before going to sleep. */ pthread_mutex_unlock(&he->hists->lock); if (err == -ERANGE && !he->ms.map->erange_warned) ui__warn_map_erange(he->ms.map, sym, ip); else if (err == -ENOMEM) { pr_err("Not enough memory for annotating '%s' symbol!\n", sym->name); sleep(1); } pthread_mutex_lock(&he->hists->lock); } }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo12262.89%1168.75%
namhyung kimnamhyung kim4221.65%425.00%
mike galbraithmike galbraith3015.46%16.25%
Total194100.00%16100.00%


static void perf_top__show_details(struct perf_top *top) { struct hist_entry *he = top->sym_filter_entry; struct annotation *notes; struct symbol *symbol; int more; if (!he) return; symbol = he->ms.sym; notes = symbol__annotation(symbol); pthread_mutex_lock(&notes->lock); if (notes->src == NULL) goto out_unlock; printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 0, top->sym_pcnt_filter, top->print_entries, 4); if (top->evlist->enabled) { if (top->zero) symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); else symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); } if (more != 0) printf("%d lines not displayed, maybe increase display entries [e]\n", more); out_unlock: pthread_mutex_unlock(&notes->lock); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo12365.08%1090.91%
mike galbraithmike galbraith6634.92%19.09%
Total189100.00%11100.00%


static void perf_top__print_sym_table(struct perf_top *top) { char bf[160]; int printed = 0; const int win_width = top->winsize.ws_col - 1; struct perf_evsel *evsel = top->sym_evsel; struct hists *hists = evsel__hists(evsel); puts(CONSOLE_CLEAR); perf_top__header_snprintf(top, bf, sizeof(bf)); printf("%s\n", bf); perf_top__reset_sample_counters(top); printf("%-*.*s\n", win_width, win_width, graph_dotted_line); if (hists->stats.nr_lost_warned != hists->stats.nr_events[PERF_RECORD_LOST]) { hists->stats.nr_lost_warned = hists->stats.nr_events[PERF_RECORD_LOST]; color_fprintf(stdout, PERF_COLOR_RED, "WARNING: LOST %d chunks, Check IO/CPU overload", hists->stats.nr_lost_warned); ++printed; } if (top->sym_filter_entry) { perf_top__show_details(top); return; } if (top->evlist->enabled) { if (top->zero) { hists__delete_entries(hists); } else { hists__decay_entries(hists, top->hide_user_symbols, top->hide_kernel_symbols); } } hists__collapse_resort(hists, NULL); perf_evsel__output_resort(evsel, NULL); hists__output_recalc_col_len(hists, top->print_entries - printed); putchar('\n'); hists__fprintf(hists, false, top->print_entries - printed, win_width, top->min_percent, stdout, symbol_conf.use_callchain); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo17970.75%1260.00%
namhyung kimnamhyung kim3513.83%525.00%
mike galbraithmike galbraith239.09%15.00%
jiri olsajiri olsa166.32%210.00%
Total253100.00%20100.00%


static void prompt_integer(int *target, const char *msg) { char *buf = malloc(0), *p; size_t dummy = 0; int tmp; fprintf(stdout, "\n%s: ", msg); if (getline(&buf, &dummy, stdin) < 0) return; p = strchr(buf, '\n'); if (p) *p = 0; p = buf; while(*p) { if (!isdigit(*p)) goto out_free; p++; } tmp = strtoul(buf, NULL, 10); *target = tmp; out_free: free(buf); }

Contributors

PersonTokensPropCommitsCommitProp
mike galbraithmike galbraith127100.00%1100.00%
Total127100.00%1100.00%


static void prompt_percent(int *target, const char *msg) { int tmp = 0; prompt_integer(&tmp, msg); if (tmp >= 0 && tmp <= 100) *target = tmp; }

Contributors

PersonTokensPropCommitsCommitProp
mike galbraithmike galbraith4195.35%150.00%
arnaldo carvalho de meloarnaldo carvalho de melo24.65%150.00%
Total43100.00%2100.00%


static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) { char *buf = malloc(0), *p; struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; struct hists *hists = evsel__hists(top->sym_evsel); struct rb_node *next; size_t dummy = 0; /* zero counters of active symbol */ if (syme) { __zero_source_counters(syme); top->sym_filter_entry = NULL; } fprintf(stdout, "\n%s: ", msg); if (getline(&buf, &dummy, stdin) < 0) goto out_free; p = strchr(buf, '\n'); if (p) *p = 0; next = rb_first(&hists->entries); while (next) { n = rb_entry(next, struct hist_entry, rb_node); if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { found = n; break; } next = rb_next(&n->rb_node); } if (!found) { fprintf(stderr, "Sorry, %s is not active.\n", buf); sleep(1); } else perf_top__parse_source(top, found); out_free: free(buf); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo11951.07%555.56%
mike galbraithmike galbraith11047.21%111.11%
ingo molnaringo molnar31.29%222.22%
kirill smelkovkirill smelkov10.43%111.11%
Total233100.00%9100.00%


static void perf_top__print_mapped_keys(struct perf_top *top) { char *name = NULL; if (top->sym_filter_entry) { struct symbol *sym = top->sym_filter_entry->ms.sym; name = sym->name; } fprintf(stdout, "\nMapped keys:\n"); fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); if (top->evlist->nr_entries > 1) fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); fprintf(stdout, "\t[S] stop annotation.\n"); fprintf(stdout, "\t[K] hide kernel_symbols symbols. \t(%s)\n", top->hide_kernel_symbols ? "yes" : "no"); fprintf(stdout, "\t[U] hide user symbols. \t(%s)\n", top->hide_user_symbols ? "yes" : "no"); fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); fprintf(stdout, "\t[qQ] quit.\n"); }

Contributors

PersonTokensPropCommitsCommitProp
mike galbraithmike galbraith10555.26%318.75%
arnaldo carvalho de meloarnaldo carvalho de melo6735.26%1062.50%
ingo molnaringo molnar178.95%212.50%
kirill smelkovkirill smelkov10.53%16.25%
Total190100.00%16100.00%


static int perf_top__key_mapped(struct perf_top *top, int c) { switch (c) { case 'd': case 'e': case 'f': case 'z': case 'q': case 'Q': case 'K': case 'U': case 'F': case 's': case 'S': return 1; case 'E': return top->evlist->nr_entries > 1 ? 1 : 0; default: break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
mike galbraithmike galbraith4153.25%228.57%
arnaldo carvalho de meloarnaldo carvalho de melo2532.47%342.86%
kirill smelkovkirill smelkov911.69%114.29%
ingo molnaringo molnar22.60%114.29%
Total77100.00%7100.00%


static bool perf_top__handle_keypress(struct perf_top *top, int c) { bool ret = true; if (!perf_top__key_mapped(top, c)) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; struct termios save; perf_top__print_mapped_keys(top); fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); fflush(stdout); set_term_quiet_input(&save); poll(&stdin_poll, 1, -1); c = getc(stdin); tcsetattr(0, TCSAFLUSH, &save); if (!perf_top__key_mapped(top, c)) return ret; } switch (c) { case 'd': prompt_integer(&top->delay_secs, "Enter display delay"); if (top->delay_secs < 1) top->delay_secs = 1; break; case 'e': prompt_integer(&top->print_entries, "Enter display entries (lines)"); if (top->print_entries == 0) { struct sigaction act = { .sa_sigaction = perf_top__sig_winch, .sa_flags = SA_SIGINFO, }; perf_top__sig_winch(SIGWINCH, NULL, top); sigaction(SIGWINCH, &act, NULL); } else { signal(SIGWINCH, SIG_DFL); } break; case 'E': if (top->evlist->nr_entries > 1) { /* Select 0 as the default event: */ int counter = 0; fprintf(stderr, "\nAvailable events:"); evlist__for_each_entry(top->evlist, top->sym_evsel) fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); prompt_integer(&counter, "Enter details event counter"); if (counter >= top->evlist->nr_entries) { top->sym_evsel = perf_evlist__first(top->evlist); fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); sleep(1); break; } evlist__for_each_entry(top->evlist, top->sym_evsel) if (top->sym_evsel->idx == counter) break; } else top->sym_evsel = perf_evlist__first(top->evlist); break; case 'f': prompt_integer(&top->count_filter, "Enter display event count filter"); break; case 'F': prompt_percent(&top->sym_pcnt_filter, "Enter details display event filter (percent)"); break; case 'K': top->hide_kernel_symbols = !top->hide_kernel_symbols; break; case 'q': case 'Q': printf("exiting.\n"); if (top->dump_symtab) perf_session__fprintf_dsos(top->session, stderr); ret = false; break; case 's': perf_top__prompt_symbol(top, "Enter details symbol"); break; case 'S': if (!top->sym_filter_entry) break; else { struct hist_entry *syme = top->sym_filter_entry; top->sym_filter_entry = NULL; __zero_source_counters(syme); } break; case 'U': top->hide_user_symbols = !top->hide_user_symbols; break; case 'z': top->zero = !top->zero; break; default: break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo24148.01%1864.29%
mike galbraithmike galbraith19338.45%27.14%
ingo molnaringo molnar509.96%310.71%
tim blechmanntim blechmann101.99%13.57%
akihiro nagaiakihiro nagai30.60%13.57%
stephane eranianstephane eranian20.40%13.57%
yanmin zhangyanmin zhang20.40%13.57%
jiri olsajiri olsa10.20%13.57%
Total502100.00%28100.00%


static void perf_top__sort_new_samples(void *arg) { struct perf_top *t = arg; struct perf_evsel *evsel = t->sym_evsel; struct hists *hists; perf_top__reset_sample_counters(t); if (t->evlist->selected != NULL) t->sym_evsel = t->evlist->selected; hists = evsel__hists(evsel); if (t->evlist->enabled) { if (t->zero) { hists__delete_entries(hists); } else { hists__decay_entries(hists, t->hide_user_symbols, t->hide_kernel_symbols); } } hists__collapse_resort(hists, NULL); perf_evsel__output_resort(evsel, NULL); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo7262.07%440.00%
namhyung kimnamhyung kim2824.14%220.00%
jiri olsajiri olsa1210.34%110.00%
ingo molnaringo molnar32.59%220.00%
frederic weisbeckerfrederic weisbecker10.86%110.00%
Total116100.00%10100.00%


static void *display_thread_tui(void *arg) { struct perf_evsel *pos; struct perf_top *top = arg; const char *help = "For a higher level overview, try: perf top --sort comm,dso"; struct hist_browser_timer hbt = { .timer = perf_top__sort_new_samples, .arg = top, .refresh = top->delay_secs, }; perf_top__sort_new_samples(top); /* * Initialize the uid_filter_str, in the future the TUI will allow * Zooming in/out UIDs. For now juse use whatever the user passed * via --uid. */ evlist__for_each_entry(top->evlist, pos) { struct hists *hists = evsel__hists(pos); hists->uid_filter_str = top->record_opts.target.uid_str; } perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, &top->session->header.env); done = 1; return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo8166.94%1066.67%
namhyung kimnamhyung kim4033.06%533.33%
Total121100.00%15100.00%


static void display_sig(int sig __maybe_unused) { done = 1; }

Contributors

PersonTokensPropCommitsCommitProp
jiri olsajiri olsa14100.00%1100.00%
Total14100.00%1100.00%


static void display_setup_sig(void) { signal(SIGSEGV, sighandler_dump_stack); signal(SIGFPE, sighandler_dump_stack); signal(SIGINT, display_sig); signal(SIGQUIT, display_sig); signal(SIGTERM, display_sig); }

Contributors

PersonTokensPropCommitsCommitProp
jiri olsajiri olsa4195.35%150.00%
arnaldo carvalho de meloarnaldo carvalho de melo24.65%150.00%
Total43100.00%2100.00%


static void *display_thread(void *arg) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; struct termios save; struct perf_top *top = arg; int delay_msecs, c; display_setup_sig(); pthread__unblock_sigwinch(); repeat: delay_msecs = top->delay_secs * MSEC_PER_SEC; set_term_quiet_input(&save); /* trash return*/ getc(stdin); while (!done) { perf_top__print_sym_table(top); /* * Either timeout expired or we got an EINTR due to SIGWINCH, * refresh screen in both cases. */ switch (poll(&stdin_poll, 1, delay_msecs)) { case 0: continue; case -1: if (errno == EINTR) continue; /* Fall trhu */ default: c = getc(stdin); tcsetattr(0, TCSAFLUSH, &save); if (perf_top__handle_keypress(top, c)) goto repeat; done = 1; } } tcsetattr(0, TCSAFLUSH, &save); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo5332.92%545.45%
ingo molnaringo molnar3823.60%218.18%
mike galbraithmike galbraith3622.36%19.09%
frederic weisbeckerfrederic weisbecker1911.80%19.09%
jiri olsajiri olsa159.32%218.18%
Total161100.00%11100.00%


static int hist_iter__top_callback(struct hist_entry_iter *iter, struct addr_location *al, bool single, void *arg) { struct perf_top *top = arg; struct hist_entry *he = iter->he; struct perf_evsel *evsel = iter->evsel; if (perf_hpp_list.sym && single) perf_top__record_precise_ip(top, he, evsel->idx, al->addr); hist__account_cycles(iter->sample->branch_stack, al, iter->sample, !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim7171.00%250.00%
andi kleenandi kleen2626.00%125.00%
jiri olsajiri olsa33.00%125.00%
Total100100.00%4100.00%


static void perf_event__process_sample(struct perf_tool *tool, const union perf_event *event, struct perf_evsel *evsel, struct perf_sample *sample, struct machine *machine) { struct perf_top *top = container_of(tool, struct perf_top, tool); struct addr_location al; int err; if (!machine && perf_guest) { static struct intlist *seen; if (!seen) seen = intlist__new(NULL); if (!intlist__has_entry(seen, sample->pid)) { pr_err("Can't find guest [%d]'s kernel information\n", sample->pid); intlist__add(seen, sample->pid); } return; } if (!machine) { pr_err("%u unprocessable samples recorded.\r", top->session->evlist->stats.nr_unprocessable_samples++); return; } if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) top->exact_samples++; if (machine__resolve(machine, &al, sample) < 0) return; if (!machine->kptr_restrict_warned && symbol_conf.kptr_restrict && al.cpumode == PERF_RECORD_MISC_KERNEL) { ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict.\n\n" "Kernel%s samples will not be resolved.\n", al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? " modules" : ""); if (use_browser <= 0) sleep(5); machine->kptr_restrict_warned = true; } if (al.sym == NULL) { const char *msg = "Kernel samples will not be resolved.\n"; /* * As we do lazy loading of symtabs we only will know if the * specified vmlinux file is invalid when we actually have a * hit in kernel space and then try to load it. So if we get * here and there are _no_ symbols in the DSO backing the * kernel map, bail out. * * We may never get here, for instance, if we use -K/ * --hide-kernel-symbols, even if the user specifies an * invalid --vmlinux ;-) */ if (!machine->kptr_restrict_warned && !top->vmlinux_warned && al.map == machine->vmlinux_maps[MAP__FUNCTION] && RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { if (symbol_conf.vmlinux_name) { char serr[256]; dso__strerror_load(al.map->dso, serr, sizeof(serr)); ui__warning("The %s file can't be used: %s\n%s", symbol_conf.vmlinux_name, serr, msg); } else { ui__warning("A vmlinux file was not found.\n%s", msg); } if (use_browser <= 0) sleep(5); top->vmlinux_warned = true; } } if (al.sym == NULL || !al.sym->idle) { struct hists *hists = evsel__hists(evsel); struct hist_entry_iter iter = { .evsel = evsel, .sample = sample, .add_entry_cb = hist_iter__top_callback, }; if (symbol_conf.cumulate_callchain) iter.ops = &hist_iter_cumulative; else iter.ops = &hist_iter_normal; pthread_mutex_lock(&hists->lock); err = hist_entry_iter__add(&iter, &al, top->max_stack, top); if (err < 0) pr_err("Problem incrementing symbol period, skipping event\n"); pthread_mutex_unlock(&hists->lock); } addr_location__put(&al); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo31465.15%3774.00%
namhyung kimnamhyung kim5711.83%24.00%
david aherndavid ahern367.47%12.00%
joerg roedeljoerg roedel214.36%12.00%
yanmin zhangyanmin zhang173.53%12.00%
ingo molnaringo molnar153.11%24.00%
peter zijlstrapeter zijlstra122.49%24.00%
wang nanwang nan40.83%12.00%
adrian hunteradrian hunter30.62%12.00%
mike galbraithmike galbraith20.41%12.00%
kirill smelkovkirill smelkov10.21%12.00%
Total482100.00%50100.00%


static void perf_top__mmap_read_idx(struct perf_top *top, int idx) { struct perf_sample sample; struct perf_evsel *evsel; struct perf_session *session = top->session; union perf_event *event; struct machine *machine; int ret; while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { ret = perf_evlist__parse_sample(top->evlist, event, &sample); if (ret) { pr_err("Can't parse sample, err = %d\n", ret); goto next_event; } evsel = perf_evlist__id2evsel(session->evlist, sample.id); assert(evsel != NULL); if (event->header.type == PERF_RECORD_SAMPLE) ++top->samples; switch (sample.cpumode) { case PERF_RECORD_MISC_USER: ++top->us_samples; if (top->hide_user_symbols) goto next_event; machine = &session->machines.host; break; case PERF_RECORD_MISC_KERNEL: ++top->kernel_samples; if (top->hide_kernel_symbols) goto next_event; machine = &session->machines.host; break; case PERF_RECORD_MISC_GUEST_KERNEL: ++top->guest_kernel_samples; machine = perf_session__find_machine(session, sample.pid); break; case PERF_RECORD_MISC_GUEST_USER: ++top->guest_us_samples; /* * TODO: we don't process guest user from host side * except simple counting. */ goto next_event; default: if (event->header.type == PERF_RECORD_SAMPLE) goto next_event; machine = &session->machines.host; break; } if (event->header.type == PERF_RECORD_SAMPLE) { perf_event__process_sample(&top->tool, event, evsel, &sample, machine); } else if (event->header.type < PERF_RECORD_MAX) { hists__inc_nr_events(evsel__hists(evsel), event->header.type); machine__process_event(machine, event, &sample); } else ++session->evlist->stats.nr_unknown_events; next_event: perf_evlist__mmap_consume(top->evlist, idx); } }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo23269.46%2068.97%
ingo molnaringo molnar329.58%310.34%
zhouyi zhouzhouyi zhou236.89%13.45%
namhyung kimnamhyung kim236.89%13.45%
frederic weisbeckerfrederic weisbecker216.29%26.90%
peter zijlstrapeter zijlstra20.60%13.45%
adrian hunteradrian hunter10.30%13.45%
Total334100.00%29100.00%


static void perf_top__mmap_read(struct perf_top *top) { int i; for (i = 0; i < top->evlist->nr_mmaps; i++) perf_top__mmap_read_idx(top, i); }

Contributors

PersonTokensPropCommitsCommitProp
frederic weisbeckerfrederic weisbecker2463.16%114.29%
arnaldo carvalho de meloarnaldo carvalho de melo1436.84%685.71%
Total38100.00%7100.00%


static int perf_top__start_counters(struct perf_top *top) { char msg[512]; struct perf_evsel *counter; struct perf_evlist *evlist = top->evlist; struct record_opts *opts = &top->record_opts; perf_evlist__config(evlist, opts, &callchain_param); evlist__for_each_entry(evlist, counter) { try_again: if (perf_evsel__open(counter, top->evlist->cpus, top->evlist->threads) < 0) { if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { if (verbose) ui__warning("%s\n", msg); goto try_again; } perf_evsel__open_strerror(counter, &opts->target, errno, msg, sizeof(msg)); ui__error("%s\n", msg); goto out_err; } } if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { ui__error("Failed to mmap with %d (%s)\n", errno, str_error_r(errno, msg, sizeof(msg))); goto out_err; } return 0; out_err: return -1; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo14575.13%2064.52%
ingo molnaringo molnar2915.03%516.13%
david aherndavid ahern84.15%39.68%
masami hiramatsumasami hiramatsu73.63%13.23%
namhyung kimnamhyung kim21.04%13.23%
jiri olsajiri olsa21.04%13.23%
Total193100.00%31100.00%


static int callchain_param__setup_sample_type(struct callchain_param *callchain) { if (!perf_hpp_list.sym) { if (callchain->enabled) { ui__error("Selected -g but \"sym\" not present in --sort/-s."); return -EINVAL; } } else if (callchain->mode != CHAIN_NONE) { if (callchain_register_param(callchain) < 0) { ui__error("Can't register callchain params.\n"); return -EINVAL; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo6692.96%360.00%
jiri olsajiri olsa34.23%120.00%
namhyung kimnamhyung kim22.82%120.00%
Total71100.00%5100.00%


static int __cmd_top(struct perf_top *top) { char msg[512]; struct perf_evsel *pos; struct perf_evsel_config_term *err_term; struct perf_evlist *evlist = top->evlist; struct record_opts *opts = &top->record_opts; pthread_t thread; int ret; top->session = perf_session__new(NULL, false, NULL); if (top->session == NULL) return -1; if (!objdump_path) { ret = perf_env__lookup_objdump(&top->session->header.env); if (ret) goto out_delete; } ret = callchain_param__setup_sample_type(&callchain_param); if (ret) goto out_delete; if (perf_session__register_idle_thread(top->session) < 0) goto out_delete; machine__synthesize_threads(&top->session->machines.host, &opts->target, top->evlist->threads, false, opts->proc_map_timeout); if (perf_hpp_list.socket) { ret = perf_env__read_cpu_topology_map(&perf_env); if (ret < 0) goto out_err_cpu_topo; } ret = perf_top__start_counters(top); if (ret) goto out_delete; ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); if (ret) { error("failed to set config \"%s\" on event %s with %d (%s)\n", err_term->val.drv_cfg, perf_evsel__name(pos), errno, str_error_r(errno, msg, sizeof(msg))); goto out_delete; } top->session->evlist = top->evlist; perf_session__set_id_hdr_size(top->session); /* * When perf is starting the traced process, all the events (apart from * group members) have enable_on_exec=1 set, so don't spoil it by * prematurely enabling them. * * XXX 'top' still doesn't start workloads like record, trace, but should, * so leave the check here. */ if (!target__none(&opts->target)) perf_evlist__enable(top->evlist); /* Wait for a minimal set of events before starting the snapshot */ perf_evlist__poll(top->evlist, 100); perf_top__mmap_read(top); ret = -1; if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : display_thread), top)) { ui__error("Could not create display thread.\n"); goto out_delete; } if (top->realtime_prio) { struct sched_param param; param.sched_priority = top->realtime_prio; if (sched_setscheduler(0, SCHED_FIFO, &param)) { ui__error("Could not set realtime priority.\n"); goto out_join; } } while (!done) { u64 hits = top->samples; perf_top__mmap_read(top); if (hits == top->samples) ret = perf_evlist__poll(top->evlist, 100); } ret = 0; out_join: pthread_join(thread, NULL); out_delete: perf_session__delete(top->session); top->session = NULL; return ret; out_err_cpu_topo: { char errbuf[BUFSIZ]; const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); ui__error("Could not read the CPU topology map: %s\n", err); goto out_delete; } }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo19239.10%2558.14%
ingo molnaringo molnar9018.33%49.30%
mathieu j. poiriermathieu j. poirier7715.68%12.33%
kan liangkan liang6312.83%24.65%
sukadev bhattiprolusukadev bhattiprolu275.50%12.33%
namhyung kimnamhyung kim142.85%24.65%
jiri olsajiri olsa142.85%36.98%
frederic weisbeckerfrederic weisbecker71.43%12.33%
ian munsieian munsie20.41%12.33%
masami hiramatsumasami hiramatsu20.41%12.33%
tom zanussitom zanussi20.41%12.33%
taeung songtaeung song10.20%12.33%
Total491100.00%43100.00%


static int callchain_opt(const struct option *opt, const char *arg, int unset) { symbol_conf.use_callchain = true; return record_callchain_opt(opt, arg, unset); }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo2055.56%150.00%
jiri olsajiri olsa1644.44%150.00%
Total36100.00%2100.00%


static int parse_callchain_opt(const struct option *opt, const char *arg, int unset) { struct callchain_param *callchain = opt->value; callchain->enabled = !unset; callchain->record_mode = CALLCHAIN_FP; /* * --no-call-graph */ if (unset) { symbol_conf.use_callchain = false; callchain->record_mode = CALLCHAIN_NONE; return 0; } return parse_callchain_top_opt(arg); }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim3347.14%120.00%
jiri olsajiri olsa1927.14%120.00%
arnaldo carvalho de meloarnaldo carvalho de melo1825.71%360.00%
Total70100.00%5100.00%


static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) { if (!strcmp(var, "top.call-graph")) var = "call-graph.record-mode"; /* fall-through */ if (!strcmp(var, "top.children")) { symbol_conf.cumulate_callchain = perf_config_bool(var, value); return 0; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jiri olsajiri olsa3249.23%125.00%
namhyung kimnamhyung kim3147.69%250.00%
wang nanwang nan23.08%125.00%
Total65100.00%4100.00%


static int parse_percent_limit(const struct option *opt, const char *arg, int unset __maybe_unused) { struct perf_top *top = opt->value; top->min_percent = strtof(arg, NULL); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
namhyung kimnamhyung kim44100.00%1100.00%
Total44100.00%1100.00%

const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP "\n\t\t\t\tDefault: fp,graph,0.5,caller,function";
int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) { char errbuf[BUFSIZ]; struct perf_top top = { .count_filter = 5, .delay_secs = 2, .record_opts = { .mmap_pages = UINT_MAX, .user_freq = UINT_MAX, .user_interval = ULLONG_MAX, .freq = 4000, /* 4 KHz */ .target = { .uses_mmap = true, }, .proc_map_timeout = 500, }, .max_stack = sysctl_perf_event_max_stack, .sym_pcnt_filter = 5, }; struct record_opts *opts = &top.record_opts; struct target *target = &opts->target; const struct option options[] = { OPT_CALLBACK('e', "event", &top.evlist, "event", "event selector. use 'perf list' to list available events", parse_events_option), OPT_U64('c', "count", &opts->user_interval, "event period to sample"), OPT_STRING('p', "pid", &target->pid, "pid", "profile events on existing process id"), OPT_STRING('t', "tid", &target->tid, "tid", "profile events on existing thread id"), OPT_BOOLEAN('a', "all-cpus", &target->system_wide, "system-wide collection from all CPUs"), OPT_STRING('C', "cpu", &target->cpu_list, "cpu", "list of cpus to monitor"), OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, "file", "vmlinux pathname"), OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, "don't load vmlinux even if found"), OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, "hide kernel symbols"), OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", "number of mmap data pages", perf_evlist__parse_mmap_pages), OPT_INTEGER('r', "realtime", &top.realtime_prio, "collect data with this RT SCHED_FIFO priority"), OPT_INTEGER('d', "delay", &top.delay_secs, "number of seconds to delay between refreshes"), OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, "dump the symbol table used for profiling"), OPT_INTEGER('f', "count-filter", &top.count_filter, "only display functions with more events than this"), OPT_BOOLEAN(0, "group", &opts->group, "put the counters into a counter group"), OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, "child tasks do not inherit counters"), OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", "symbol to annotate"), OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), OPT_INTEGER('E', "entries", &top.print_entries, "display this many functions"), OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, "hide user symbols"), OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), 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(0, "fields", &field_order, "key[,keys...]", "output field(s): overhead, period, sample plus all of sort keys"), OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, "Show a column with the number of samples"), OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, NULL, "enables call-graph recording and display", &callchain_opt), OPT_CALLBACK(0, "call-graph", &callchain_param, "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", top_callchain_help, &parse_callchain_opt), OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, "Accumulate callchains of children and show total overhead as well"), OPT_INTEGER(0, "max-stack", &top.max_stack, "Set the maximum stack depth when parsing the callchain. " "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), OPT_CALLBACK(0, "ignore-callees", NULL, "regex", "ignore callees of these functions in call graphs", report_parse_ignore_callees_opt), OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, "Show a column with the sum of periods"), OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", "only consider symbols in these dsos"), OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", "only consider symbols in these comms"), OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", "only consider these symbols"), 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_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, "Enable kernel symbol demangling"), OPT_STRING(0, "objdump", &objdump_path, "path", "objdump binary to use for disassembly and annotations"), OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), OPT_CALLBACK(0, "percent-limit", &top, "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_STRING('w', "column-widths", &symbol_conf.col_width_list_str, "width[,width...]", "don't try to adjust column width, use these fixed values"), OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, "per thread proc mmap processing timeout in ms"), OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, "branch any", "sample any taken branches", parse_branch_stack), OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, "branch filter mask", "branch stack filter modes", parse_branch_stack), 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() }; const char * const top_usage[] = { "perf top [<options>]", NULL }; int status = hists__init(); if (status < 0) return status; top.evlist = perf_evlist__new(); if (top.evlist == NULL) return -ENOMEM; perf_config(perf_top_config, &top); argc = parse_options(argc, argv, options, top_usage, 0); if (argc) usage_with_options(top_usage, options); if (!top.evlist->nr_entries && perf_evlist__add_default(top.evlist) < 0) { pr_err("Not enough memory for event selector list\n"); goto out_delete_evlist; } 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(top_usage, options, "fields", 0); parse_options_usage(NULL, options, "hierarchy", 0); goto out_delete_evlist; } } sort__mode = SORT_MODE__TOP; /* display thread wants entries to be collapsed in a different tree */ perf_hpp_list.need_collapse = 1; if (top.use_stdio) use_browser = 0; else if (top.use_tui) use_browser = 1; setup_browser(false); if (setup_sorting(top.evlist) < 0) { if (sort_order) parse_options_usage(top_usage, options, "s", 1); if (field_order) parse_options_usage(sort_order ? NULL : top_usage, options, "fields", 0); goto out_delete_evlist; } status = target__validate(target); if (status) { target__strerror(target, status, errbuf, BUFSIZ); ui__warning("%s\n", errbuf); } status = target__parse_uid(target); if (status) { int saved_errno = errno; target__strerror(target, status, errbuf, BUFSIZ); ui__error("%s\n", errbuf); status = -saved_errno; goto out_delete_evlist; } if (target__none(target)) target->system_wide = true; if (perf_evlist__create_maps(top.evlist, target) < 0) { ui__error("Couldn't create thread/CPU maps: %s\n", errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); goto out_delete_evlist; } symbol_conf.nr_events = top.evlist->nr_entries; if (top.delay_secs < 1) top.delay_secs = 1; if (record_opts__config(opts)) { status = -EINVAL; goto out_delete_evlist; } top.sym_evsel = perf_evlist__first(top.evlist); if (!callchain_param.enabled) { symbol_conf.cumulate_callchain = false; perf_hpp__cancel_cumulate(); } if (symbol_conf.cumulate_callchain && !callchain_param.order_set) callchain_param.order = ORDER_CALLER; status = symbol__annotation_init(); if (status < 0) goto out_delete_evlist; symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); if (symbol__init(NULL) < 0) return -1; sort__setup_elide(stdout); get_term_dimensions(&top.winsize); if (top.print_entries == 0) { struct sigaction act = { .sa_sigaction = perf_top__sig_winch, .sa_flags = SA_SIGINFO, }; perf_top__update_print_entries(&top); sigaction(SIGWINCH, &act, NULL); } status = __cmd_top(&top); out_delete_evlist: perf_evlist__delete(top.evlist); return status; }

Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo65544.96%3437.36%
namhyung kimnamhyung kim35924.64%2527.47%
ingo molnaringo molnar21814.96%66.59%
andi kleenandi kleen362.47%11.10%
jiri olsajiri olsa352.40%66.59%
mike galbraithmike galbraith271.85%55.49%
waiman longwaiman long221.51%11.10%
kan liangkan liang191.30%11.10%
greg pricegreg price151.03%11.10%
willy tarreauwilly tarreau140.96%11.10%
avi kivityavi kivity140.96%11.10%
sukadev bhattiprolusukadev bhattiprolu140.96%11.10%
yanmin zhangyanmin zhang110.75%11.10%
david aherndavid ahern80.55%22.20%
stephane eranianstephane eranian60.41%11.10%
ian munsieian munsie10.07%11.10%
kirill smelkovkirill smelkov10.07%11.10%
thomas gleixnerthomas gleixner10.07%11.10%
anton blanchardanton blanchard10.07%11.10%
Total1457100.00%91100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
arnaldo carvalho de meloarnaldo carvalho de melo320750.98%12448.63%
mike galbraithmike galbraith86513.75%72.75%
namhyung kimnamhyung kim80012.72%4116.08%
ingo molnaringo molnar5628.93%145.49%
jiri olsajiri olsa2243.56%176.67%
kan liangkan liang821.30%20.78%
mathieu j. poiriermathieu j. poirier801.27%10.39%
frederic weisbeckerfrederic weisbecker751.19%51.96%
andi kleenandi kleen651.03%10.39%
david aherndavid ahern550.87%62.35%
sukadev bhattiprolusukadev bhattiprolu440.70%10.39%
yanmin zhangyanmin zhang300.48%20.78%
zhouyi zhouzhouyi zhou230.37%10.39%
waiman longwaiman long220.35%10.39%
joerg roedeljoerg roedel210.33%10.39%
peter zijlstrapeter zijlstra160.25%41.57%
greg pricegreg price150.24%10.39%
avi kivityavi kivity140.22%10.39%
willy tarreauwilly tarreau140.22%10.39%
kirill smelkovkirill smelkov140.22%41.57%
adrian hunteradrian hunter120.19%20.78%
tim blechmanntim blechmann100.16%10.39%
masami hiramatsumasami hiramatsu90.14%20.78%
stephane eranianstephane eranian80.13%20.78%
wang nanwang nan60.10%20.78%
paul mackerraspaul mackerras30.05%10.39%
akihiro nagaiakihiro nagai30.05%10.39%
ian munsieian munsie30.05%20.78%
irina tirdeairina tirdea20.03%10.39%
taeung songtaeung song20.03%20.78%
tom zanussitom zanussi20.03%10.39%
anton blanchardanton blanchard10.02%10.39%
thomas gleixnerthomas gleixner10.02%10.39%
josh poimboeufjosh poimboeuf10.02%10.39%
Total6291100.00%255100.00%
Directory: tools/perf
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