diff options
author | Ingo Molnar <mingo@kernel.org> | 2012-06-20 13:41:42 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2012-06-20 13:41:53 +0200 |
commit | 32c46e579b68c7ac0cd19d0803898a841d99833d (patch) | |
tree | 64a15c3b6eca5b302ef5aff0e045f52035c33eb7 /tools | |
parent | 2992c542fcd40777ed253f57362c65711fb8acaf (diff) | |
parent | c0a58fb2bdf033df433cad9009c7dac4c6b872b0 (diff) |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf improvements from Arnaldo Carvalho de Melo:
* Replace event_name with perf_evsel__name, that handles the event
modifiers and doesn't use static variables.
* GTK browser improvements, from Namhyung Kim
* Fix possible NULL pointer deref in the TUI annotate browser, from
Samuel Liao
* Add sort by source file:line number, using addr2line.
* Allow printing histogram text snapshots at any point in top/report.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools')
39 files changed, 1118 insertions, 514 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 2d89f02719b5..495210a612c4 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -57,7 +57,7 @@ OPTIONS -s:: --sort=:: - Sort by key(s): pid, comm, dso, symbol, parent. + Sort by key(s): pid, comm, dso, symbol, parent, srcline. -p:: --parent=<regex>:: diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index 4a5680cb242e..5b80d84d6b4a 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -112,7 +112,7 @@ Default is to monitor all CPUS. -s:: --sort:: - Sort by key(s): pid, comm, dso, symbol, parent + Sort by key(s): pid, comm, dso, symbol, parent, srcline. -n:: --show-nr-samples:: diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 0eee64cfe9a0..d698c118a602 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -503,6 +503,7 @@ else LIB_OBJS += $(OUTPUT)ui/progress.o LIB_OBJS += $(OUTPUT)ui/util.o LIB_OBJS += $(OUTPUT)ui/tui/setup.o + LIB_OBJS += $(OUTPUT)ui/tui/util.o LIB_H += ui/browser.h LIB_H += ui/browsers/map.h LIB_H += ui/helpline.h @@ -522,13 +523,18 @@ else msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev); BASIC_CFLAGS += -DNO_GTK2_SUPPORT else + ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2)),y) + BASIC_CFLAGS += -DHAVE_GTK_INFO_BAR + endif BASIC_CFLAGS += $(shell pkg-config --cflags gtk+-2.0) EXTLIBS += $(shell pkg-config --libs gtk+-2.0) LIB_OBJS += $(OUTPUT)ui/gtk/browser.o LIB_OBJS += $(OUTPUT)ui/gtk/setup.o + LIB_OBJS += $(OUTPUT)ui/gtk/util.o # Make sure that it'd be included only once. ifneq ($(findstring -DNO_NEWT_SUPPORT,$(BASIC_CFLAGS)),) LIB_OBJS += $(OUTPUT)ui/setup.o + LIB_OBJS += $(OUTPUT)ui/util.o endif endif endif diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index acd78dc28341..0dd5a058f766 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -60,7 +60,7 @@ static int __cmd_evlist(const char *input_name, struct perf_attr_details *detail list_for_each_entry(pos, &session->evlist->entries, node) { bool first = true; - printf("%s", event_name(pos)); + printf("%s", perf_evsel__name(pos)); if (details->verbose || details->freq) { comma_printf(&first, " sample_freq=%" PRIu64, diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f95840d04e4c..f5a6452931e6 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -265,7 +265,7 @@ try_again: if (err == ENOENT) { ui__error("The %s event is not supported.\n", - event_name(pos)); + perf_evsel__name(pos)); exit(EXIT_FAILURE); } @@ -916,7 +916,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) usage_with_options(record_usage, record_options); list_for_each_entry(pos, &evsel_list->entries, node) { - if (perf_header__push_event(pos->attr.config, event_name(pos))) + if (perf_header__push_event(pos->attr.config, perf_evsel__name(pos))) goto out_free_fd; } diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 25249f76329d..40b0ffc3ad3b 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -69,7 +69,7 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool, if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) { - err = machine__resolve_callchain(machine, evsel, al->thread, + err = machine__resolve_callchain(machine, al->thread, sample->callchain, &parent); if (err) return err; @@ -140,7 +140,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel, struct hist_entry *he; if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) { - err = machine__resolve_callchain(machine, evsel, al->thread, + err = machine__resolve_callchain(machine, al->thread, sample->callchain, &parent); if (err) return err; @@ -230,7 +230,7 @@ static int process_read_event(struct perf_tool *tool, struct perf_report *rep = container_of(tool, struct perf_report, tool); if (rep->show_threads) { - const char *name = evsel ? event_name(evsel) : "unknown"; + 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, @@ -239,7 +239,7 @@ static int process_read_event(struct perf_tool *tool, } dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid, - evsel ? event_name(evsel) : "FAIL", + evsel ? perf_evsel__name(evsel) : "FAIL", event->read.value); return 0; @@ -314,7 +314,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, list_for_each_entry(pos, &evlist->entries, node) { struct hists *hists = &pos->hists; - const char *evname = event_name(pos); + const char *evname = perf_evsel__name(pos); hists__fprintf_nr_sample_events(hists, evname, stdout); hists__fprintf(hists, NULL, false, true, 0, 0, stdout); diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index b125e07eb399..9fe77b185338 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -1601,7 +1601,7 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool, if (thread == NULL) { pr_debug("problem processing %s event, skipping it.\n", - evsel->name); + perf_evsel__name(evsel)); return -1; } diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 8e395a538eb9..8fecd3b8130a 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -137,10 +137,11 @@ static const char *output_field2str(enum perf_output_field field) #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) -static int perf_event_attr__check_stype(struct perf_event_attr *attr, - u64 sample_type, const char *sample_msg, - enum perf_output_field field) +static int perf_evsel__check_stype(struct perf_evsel *evsel, + u64 sample_type, const char *sample_msg, + enum perf_output_field field) { + struct perf_event_attr *attr = &evsel->attr; int type = attr->type; const char *evname; @@ -148,7 +149,7 @@ static int perf_event_attr__check_stype(struct perf_event_attr *attr, return 0; if (output[type].user_set) { - evname = __event_name(attr->type, attr->config); + evname = perf_evsel__name(evsel); pr_err("Samples for '%s' event do not have %s attribute set. " "Cannot print '%s' field.\n", evname, sample_msg, output_field2str(field)); @@ -157,7 +158,7 @@ static int perf_event_attr__check_stype(struct perf_event_attr *attr, /* user did not ask for it explicitly so remove from the default list */ output[type].fields &= ~field; - evname = __event_name(attr->type, attr->config); + evname = perf_evsel__name(evsel); pr_debug("Samples for '%s' event do not have %s attribute set. " "Skipping '%s' field.\n", evname, sample_msg, output_field2str(field)); @@ -175,8 +176,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, return -EINVAL; if (PRINT_FIELD(IP)) { - if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP", - PERF_OUTPUT_IP)) + if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", + PERF_OUTPUT_IP)) return -EINVAL; if (!no_callchain && @@ -185,8 +186,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, } if (PRINT_FIELD(ADDR) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_ADDR, "ADDR", - PERF_OUTPUT_ADDR)) + perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", + PERF_OUTPUT_ADDR)) return -EINVAL; if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { @@ -208,18 +209,18 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, } if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID", - PERF_OUTPUT_TID|PERF_OUTPUT_PID)) + perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", + PERF_OUTPUT_TID|PERF_OUTPUT_PID)) return -EINVAL; if (PRINT_FIELD(TIME) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME", - PERF_OUTPUT_TIME)) + perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", + PERF_OUTPUT_TIME)) return -EINVAL; if (PRINT_FIELD(CPU) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU", - PERF_OUTPUT_CPU)) + perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", + PERF_OUTPUT_CPU)) return -EINVAL; return 0; @@ -258,9 +259,10 @@ static int perf_session__check_output_opt(struct perf_session *session) static void print_sample_start(struct perf_sample *sample, struct thread *thread, - struct perf_event_attr *attr) + struct perf_evsel *evsel) { int type; + struct perf_event_attr *attr = &evsel->attr; struct event_format *event; const char *evname = NULL; unsigned long secs; @@ -305,7 +307,7 @@ static void print_sample_start(struct perf_sample *sample, if (event) evname = event->name; } else - evname = __event_name(attr->type, attr->config); + evname = perf_evsel__name(evsel); printf("%s: ", evname ? evname : "[unknown]"); } @@ -387,7 +389,7 @@ static void print_sample_bts(union perf_event *event, printf(" "); else printf("\n"); - perf_event__print_ip(event, sample, machine, evsel, + perf_event__print_ip(event, sample, machine, PRINT_FIELD(SYM), PRINT_FIELD(DSO), PRINT_FIELD(SYMOFFSET)); } @@ -412,7 +414,7 @@ static void process_event(union perf_event *event __unused, if (output[attr->type].fields == 0) return; - print_sample_start(sample, thread, attr); + print_sample_start(sample, thread, evsel); if (is_bts_event(attr)) { print_sample_bts(event, sample, evsel, machine, thread); @@ -431,7 +433,7 @@ static void process_event(union perf_event *event __unused, printf(" "); else printf("\n"); - perf_event__print_ip(event, sample, machine, evsel, + perf_event__print_ip(event, sample, machine, PRINT_FIELD(SYM), PRINT_FIELD(DSO), PRINT_FIELD(SYMOFFSET)); } diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 07b5c7703dd1..861f0aec77ae 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -391,7 +391,7 @@ static int read_counter_aggr(struct perf_evsel *counter) if (verbose) { fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", - event_name(counter), count[0], count[1], count[2]); + perf_evsel__name(counter), count[0], count[1], count[2]); } /* @@ -496,7 +496,7 @@ static int run_perf_stat(int argc __used, const char **argv) errno == ENXIO) { if (verbose) ui__warning("%s event is not supported by the kernel.\n", - event_name(counter)); + perf_evsel__name(counter)); counter->supported = false; continue; } @@ -594,7 +594,7 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) csv_output ? 0 : -4, evsel_list->cpus->map[cpu], csv_sep); - fprintf(output, fmt, cpustr, msecs, csv_sep, event_name(evsel)); + fprintf(output, fmt, cpustr, msecs, csv_sep, perf_evsel__name(evsel)); if (evsel->cgrp) fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); @@ -792,7 +792,7 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) else cpu = 0; - fprintf(output, fmt, cpustr, avg, csv_sep, event_name(evsel)); + fprintf(output, fmt, cpustr, avg, csv_sep, perf_evsel__name(evsel)); if (evsel->cgrp) fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); @@ -908,7 +908,7 @@ static void print_counter_aggr(struct perf_evsel *counter) counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, csv_sep, csv_output ? 0 : -24, - event_name(counter)); + perf_evsel__name(counter)); if (counter->cgrp) fprintf(output, "%s%s", csv_sep, counter->cgrp->name); @@ -961,7 +961,7 @@ static void print_counter(struct perf_evsel *counter) counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, csv_sep, csv_output ? 0 : -24, - event_name(counter)); + perf_evsel__name(counter)); if (counter->cgrp) fprintf(output, "%s%s", diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 5a8727c08757..5ce30305462b 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -583,7 +583,7 @@ static int test__basic_mmap(void) if (nr_events[evsel->idx] != expected_nr_events[evsel->idx]) { pr_debug("expected %d %s events, got %d\n", expected_nr_events[evsel->idx], - event_name(evsel), nr_events[evsel->idx]); + perf_evsel__name(evsel), nr_events[evsel->idx]); goto out_munmap; } } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 6bb0277b7dfe..e3cab5f088f8 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -245,7 +245,7 @@ static void perf_top__show_details(struct perf_top *top) if (notes->src == NULL) goto out_unlock; - printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name); + 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->idx, @@ -408,7 +408,7 @@ static void perf_top__print_mapped_keys(struct perf_top *top) 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", event_name(top->sym_evsel)); + 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); @@ -503,13 +503,13 @@ static void perf_top__handle_keypress(struct perf_top *top, int c) fprintf(stderr, "\nAvailable events:"); list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) - fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(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 = list_entry(top->evlist->entries.next, struct perf_evsel, node); - fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel)); + fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); sleep(1); break; } @@ -774,7 +774,7 @@ static void perf_event__process_sample(struct perf_tool *tool, if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) { - err = machine__resolve_callchain(machine, evsel, al.thread, + err = machine__resolve_callchain(machine, al.thread, sample->callchain, &parent); if (err) return; @@ -960,7 +960,7 @@ try_again: if (err == ENOENT) { ui__error("The %s event is not supported.\n", - event_name(counter)); + perf_evsel__name(counter)); goto out_err; } else if (err == EMFILE) { ui__error("Too many events are opened.\n" diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak index d9084e03ce56..6c18785a6417 100644 --- a/tools/perf/config/feature-tests.mak +++ b/tools/perf/config/feature-tests.mak @@ -78,6 +78,19 @@ int main(int argc, char *argv[]) return 0; } endef + +define SOURCE_GTK2_INFOBAR +#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" +#include <gtk/gtk.h> +#pragma GCC diagnostic error \"-Wstrict-prototypes\" + +int main(void) +{ + gtk_info_bar_new(); + + return 0; +} +endef endif ifndef NO_LIBPERL diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 34b1c46eaf42..67a2703e666a 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, { struct disasm_line *pos, *n; struct annotation *notes; - const size_t size = symbol__size(sym); + size_t size; struct map_symbol ms = { .map = map, .sym = sym, @@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, if (sym == NULL) return -1; + size = symbol__size(sym); + if (map->dso->annotate_warned) return -1; diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 53f6697d014e..482f0517b61e 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -23,6 +23,7 @@ struct hist_browser { struct hists *hists; struct hist_entry *he_selection; struct map_symbol *selection; + int print_seq; bool has_symbols; }; @@ -800,6 +801,196 @@ do_offset: } } +static int hist_browser__fprintf_callchain_node_rb_tree(struct hist_browser *browser, + struct callchain_node *chain_node, + u64 total, int level, + FILE *fp) +{ + struct rb_node *node; + int offset = level * LEVEL_OFFSET_STEP; + u64 new_total, remaining; + int printed = 0; + + if (callchain_param.mode == CHAIN_GRAPH_REL) + new_total = chain_node->children_hit; + else + new_total = total; + + remaining = new_total; + node = rb_first(&chain_node->rb_root); + while (node) { + struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node); + struct rb_node *next = rb_next(node); + u64 cumul = callchain_cumul_hits(child); + struct callchain_list *chain; + char folded_sign = ' '; + int first = true; + int extra_offset = 0; + + remaining -= cumul; + + list_for_each_entry(chain, &child->val, list) { + char ipstr[BITS_PER_LONG / 4 + 1], *alloc_str; + const char *str; + bool was_first = first; + + if (first) + first = false; + else + extra_offset = LEVEL_OFFSET_STEP; + + folded_sign = callchain_list__folded(chain); + + alloc_str = NULL; + str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr)); + if (was_first) { + double percent = cumul * 100.0 / new_total; + + if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0) + str = "Not enough memory!"; + else + str = alloc_str; + } + + printed += fprintf(fp, "%*s%c %s\n", offset + extra_offset, " ", folded_sign, str); + free(alloc_str); + if (folded_sign == '+') + break; + } + + if (folded_sign == '-') { + const int new_level = level + (extra_offset ? 2 : 1); + printed += hist_browser__fprintf_callchain_node_rb_tree(browser, child, new_total, + new_level, fp); + } + + node = next; + } + + return printed; +} + +static int hist_browser__fprintf_callchain_node(struct hist_browser *browser, + struct callchain_node *node, + int level, FILE *fp) +{ + struct callchain_list *chain; + int offset = level * LEVEL_OFFSET_STEP; + char folded_sign = ' '; + int printed = 0; + + list_for_each_entry(chain, &node->val, list) { + char ipstr[BITS_PER_LONG / 4 + 1], *s; + + folded_sign = callchain_list__folded(chain); + s = callchain_list__sym_name(chain, ipstr, sizeof(ipstr)); + printed += fprintf(fp, "%*s%c %s\n", offset, " ", folded_sign, s); + } + + if (folded_sign == '-') + printed += hist_browser__fprintf_callchain_node_rb_tree(browser, node, + browser->hists->stats.total_period, + level + 1, fp); + return printed; +} + +static int hist_browser__fprintf_callchain(struct hist_browser *browser, + struct rb_root *chain, int level, FILE *fp) +{ + struct rb_node *nd; + int printed = 0; + + for (nd = rb_first(chain); nd; nd = rb_next(nd)) { + struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node); + + printed += hist_browser__fprintf_callchain_node(browser, node, level, fp); + } + + return printed; +} + +static int hist_browser__fprintf_entry(struct hist_browser *browser, + struct hist_entry *he, FILE *fp) +{ + char s[8192]; + double percent; + int printed = 0; + char folded_sign = ' '; + + if (symbol_conf.use_callchain) + folded_sign = hist_entry__folded(he); + + hist_entry__snprintf(he, s, sizeof(s), browser->hists); + percent = (he->period * 100.0) / browser->hists->stats.total_period; + + if (symbol_conf.use_callchain) + printed += fprintf(fp, "%c ", folded_sign); + + printed += fprintf(fp, " %5.2f%%", percent); + + if (symbol_conf.show_nr_samples) + printed += fprintf(fp, " %11u", he->nr_events); + + if (symbol_conf.show_total_period) + printed += fprintf(fp, " %12" PRIu64, he->period); + + printed += fprintf(fp, "%s\n", rtrim(s)); + + if (folded_sign == '-') + printed += hist_browser__fprintf_callchain(browser, &he->sorted_chain, 1, fp); + + return printed; +} + +static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp) +{ + struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries)); + int printed = 0; + + while (nd) { + struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); + + printed += hist_browser__fprintf_entry(browser, h, fp); + nd = hists__filter_entries(rb_next(nd)); + } + + return printed; +} + +static int hist_browser__dump(struct hist_browser *browser) +{ + char filename[64]; + FILE *fp; + + while (1) { + scnprintf(filename, sizeof(filename), "perf.hist.%d", browser->print_seq); + if (access(filename, F_OK)) + break; + /* + * XXX: Just an arbitrary lazy upper limit + */ + if (++browser->print_seq == 8192) { + ui_helpline__fpush("Too many perf.hist.N files, nothing written!"); + return -1; + } + } + + fp = fopen(filename, "w"); + if (fp == NULL) { + char bf[64]; + strerror_r(errno, bf, sizeof(bf)); + ui_helpline__fpush("Couldn't write to %s: %s", filename, bf); + return -1; + } + + ++browser->print_seq; + hist_browser__fprintf(browser, fp); + fclose(fp); + ui_helpline__fpush("%s written!", filename); + + return 0; +} + static struct hist_browser *hist_browser__new(struct hists *hists) { struct hist_browser *browser = zalloc(sizeof(*browser)); @@ -937,6 +1128,9 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, browser->selection->map->dso->annotate_warned) continue; goto do_annotate; + case 'P': + hist_browser__dump(browser); + continue; case 'd': goto zoom_dso; case 't': @@ -969,6 +1163,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, "E Expand all callchains\n" "d Zoom into current DSO\n" "t Zoom into current Thread\n" + "P Print histograms to perf.hist.N\n" "/ Filter symbol by name"); continue; case K_ENTER: @@ -1172,7 +1367,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser, struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node); bool current_entry = ui_browser__is_current_entry(browser, row); unsigned long nr_events = evsel->hists.stats.nr_events[PERF_RECORD_SAMPLE]; - const char *ev_name = event_name(evsel); + const char *ev_name = perf_evsel__name(evsel); char bf[256], unit; const char *warn = " "; size_t printed; @@ -1240,7 +1435,7 @@ browse_hists: */ if (timer) timer(arg); - ev_name = event_name(pos); + ev_name = perf_evsel__name(pos); key = perf_evsel__hists_browse(pos, nr_events, help, ev_name, true, timer, arg, delay_secs); @@ -1309,17 +1504,11 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist, ui_helpline__push("Press ESC to exit"); list_for_each_entry(pos, &evlist->entries, node) { - const char *ev_name = event_name(pos); + const char *ev_name = perf_evsel__name(pos); size_t line_len = strlen(ev_name) + 7; if (menu.b.width < line_len) menu.b.width = line_len; - /* - * Cache the evsel name, tracepoints have a _high_ cost per - * event_name() call. - */ - if (pos->name == NULL) - pos->name = strdup(ev_name); } return perf_evsel_menu__run(&menu, evlist->nr_entries, help, timer, |