From c410a33887c17cac95ed8b0d860cdfb5c087a7d8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 15 Dec 2009 20:04:41 -0200 Subject: [PATCH] perf symbols: Move symbol filtering to event__preprocess_sample() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit So that --dsos, --comm, --symbols can bem used in more tools, like in perf diff: $ perf record -f find / > /dev/null $ perf record -f find / > /dev/null $ perf diff --dsos /lib64/libc-2.10.1.so | head -5 1 +22392124 /lib64/libc-2.10.1.so _IO_vfprintf_internal 2 +6410655 /lib64/libc-2.10.1.so __GI_memmove 3 +1 +9192692 /lib64/libc-2.10.1.so _int_malloc 4 -1 -15158605 /lib64/libc-2.10.1.so _int_free 5 +45669 /lib64/libc-2.10.1.so _IO_new_file_xsputn $ Signed-off-by: Arnaldo Carvalho de Melo Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1260914682-29652-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-annotate.c | 2 +- tools/perf/builtin-diff.c | 19 ++++++-- tools/perf/builtin-report.c | 86 +++++++---------------------------- tools/perf/builtin-top.c | 2 +- tools/perf/util/event.c | 42 +++++++++++++++++ tools/perf/util/symbol.c | 5 ++ tools/perf/util/symbol.h | 4 +- 7 files changed, 84 insertions(+), 76 deletions(-) diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 645d58058431..593ff25006de 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -141,7 +141,7 @@ static int process_sample_event(event_t *event, struct perf_session *session) return -1; } - if (perf_session__add_hist_entry(session, &al, 1)) { + if (!al.filtered && perf_session__add_hist_entry(session, &al, 1)) { fprintf(stderr, "problem incrementing symbol count, " "skipping event\n"); return -1; diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 4fde60655341..ff91e9c291bb 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -50,6 +50,9 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi return -1; } + if (al.filtered) + return 0; + event__parse_sample(event, session->sample_type, &data); if (al.sym && perf_session__add_hist_entry(session, &al, data.period)) { @@ -182,10 +185,14 @@ blank: memset(displacement, ' ', sizeof(displacement)); printed = fprintf(fp, "%4lu %5.5s ", pos, displacement); if (show_percent) { - double old_percent = (old_count * 100) / pair_session->events_stats.total, - new_percent = (self->count * 100) / session->events_stats.total; - double diff = old_percent - new_percent; + double old_percent = 0, new_percent = 0, diff; + + if (pair_session->events_stats.total > 0) + old_percent = (old_count * 100) / pair_session->events_stats.total; + if (session->events_stats.total > 0) + new_percent = (self->count * 100) / session->events_stats.total; + diff = old_percent - new_percent; if (verbose) printed += fprintf(fp, " %3.2f%% %3.2f%%", old_percent, new_percent); @@ -260,6 +267,12 @@ static const struct option options[] = { "Don't shorten the pathnames taking into account the cwd"), OPT_BOOLEAN('P', "full-paths", &event_ops.full_paths, "Don't shorten the pathnames taking into account the cwd"), + 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('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", + "only consider these symbols"), OPT_END() }; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 03afac3b56ef..9c595340326a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -316,14 +316,14 @@ static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self, if (total_samples) ret = percent_color_fprintf(fp, - field_sep ? "%.2f" : " %6.2f%%", + symbol_conf.field_sep ? "%.2f" : " %6.2f%%", (self->count * 100.0) / total_samples); else - ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count); + ret = fprintf(fp, symbol_conf.field_sep ? "%lld" : "%12lld ", self->count); if (show_nr_samples) { - if (field_sep) - fprintf(fp, "%c%lld", *field_sep, self->count); + if (symbol_conf.field_sep) + fprintf(fp, "%c%lld", *symbol_conf.field_sep, self->count); else fprintf(fp, "%11lld", self->count); } @@ -332,7 +332,7 @@ static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self, if (se->elide) continue; - fprintf(fp, "%s", field_sep ?: " "); + fprintf(fp, "%s", symbol_conf.field_sep ?: " "); ret += se->print(fp, self, se->width ? *se->width : 0); } @@ -355,28 +355,11 @@ static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self, return ret; } -/* - * - */ - -static void dso__calc_col_width(struct dso *self) -{ - if (!symbol_conf.col_width_list_str && !field_sep && - (!symbol_conf.dso_list || - strlist__has_entry(symbol_conf.dso_list, self->name))) { - unsigned int slen = strlen(self->name); - if (slen > dsos__col_width) - dsos__col_width = slen; - } - - self->slen_calculated = 1; -} - static void thread__comm_adjust(struct thread *self) { char *comm = self->comm; - if (!symbol_conf.col_width_list_str && !field_sep && + if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep && (!symbol_conf.comm_list || strlist__has_entry(symbol_conf.comm_list, comm))) { unsigned int slen = strlen(comm); @@ -452,16 +435,16 @@ static size_t perf_session__fprintf_hist_entries(struct perf_session *self, fprintf(fp, "# Overhead"); if (show_nr_samples) { - if (field_sep) - fprintf(fp, "%cSamples", *field_sep); + if (symbol_conf.field_sep) + fprintf(fp, "%cSamples", *symbol_conf.field_sep); else fputs(" Samples ", fp); } list_for_each_entry(se, &hist_entry__sort_list, list) { if (se->elide) continue; - if (field_sep) { - fprintf(fp, "%c%s", *field_sep, se->header); + if (symbol_conf.field_sep) { + fprintf(fp, "%c%s", *symbol_conf.field_sep, se->header); continue; } width = strlen(se->header); @@ -480,7 +463,7 @@ static size_t perf_session__fprintf_hist_entries(struct perf_session *self, } fprintf(fp, "\n"); - if (field_sep) + if (symbol_conf.field_sep) goto print_entries; fprintf(fp, "# ........"); @@ -542,13 +525,8 @@ static int validate_chain(struct ip_callchain *chain, event_t *event) static int process_sample_event(event_t *event, struct perf_session *session) { - struct sample_data data; - int cpumode; + struct sample_data data = { .period = 1, }; struct addr_location al; - struct thread *thread; - - memset(&data, 0, sizeof(data)); - data.period = 1; event__parse_sample(event, session->sample_type, &data); @@ -576,39 +554,13 @@ static int process_sample_event(event_t *event, struct perf_session *session) } } - thread = perf_session__findnew(session, data.pid); - if (thread == NULL) { - pr_debug("problem processing %d event, skipping it.\n", + if (event__preprocess_sample(event, session, &al, NULL) < 0) { + fprintf(stderr, "problem processing %d event, skipping it.\n", event->header.type); return -1; } - dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); - - if (symbol_conf.comm_list && - !strlist__has_entry(symbol_conf.comm_list, thread->comm)) - return 0; - - cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; - - thread__find_addr_location(thread, session, cpumode, - MAP__FUNCTION, data.ip, &al, NULL); - /* - * We have to do this here as we may have a dso with no symbol hit that - * has a name longer than the ones with symbols sampled. - */ - if (al.map && !sort_dso.elide && !al.map->dso->slen_calculated) - dso__calc_col_width(al.map->dso); - - if (symbol_conf.dso_list && - (!al.map || !al.map->dso || - !(strlist__has_entry(symbol_conf.dso_list, al.map->dso->short_name) || - (al.map->dso->short_name != al.map->dso->long_name && - strlist__has_entry(symbol_conf.dso_list, al.map->dso->long_name))))) - return 0; - - if (symbol_conf.sym_list && al.sym && - !strlist__has_entry(symbol_conf.sym_list, al.sym->name)) + if (al.filtered) return 0; if (perf_session__add_hist_entry(session, &al, data.callchain, data.period)) { @@ -834,7 +786,7 @@ static const struct option options[] = { 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('t', "field-separator", &field_sep, "separator", + OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", "separator for columns, no spaces will be added between " "columns '.' is reserved."), OPT_END() @@ -877,11 +829,5 @@ int cmd_report(int argc, const char **argv, const char *prefix __used) sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); - if (field_sep && *field_sep == '.') { - fputs("'.' is the only non valid --field-separator argument\n", - stderr); - exit(129); - } - return __cmd_report(); } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index cd89b6d036b7..ddc584b64871 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -948,7 +948,7 @@ static void event__process_sample(const event_t *self, } if (event__preprocess_sample(self, session, &al, symbol_filter) < 0 || - al.sym == NULL) + al.sym == NULL || al.filtered) return; syme = symbol__priv(al.sym); diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 375fb6dca1cf..bf491fda1f47 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -2,7 +2,9 @@ #include "event.h" #include "debug.h" #include "session.h" +#include "sort.h" #include "string.h" +#include "strlist.h" #include "thread.h" static pid_t event__synthesize_comm(pid_t pid, int full, @@ -299,6 +301,19 @@ try_again: } } +static void dso__calc_col_width(struct dso *self) +{ + if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep && + (!symbol_conf.dso_list || + strlist__has_entry(symbol_conf.dso_list, self->name))) { + unsigned int slen = strlen(self->name); + if (slen > dsos__col_width) + dsos__col_width = slen; + } + + self->slen_calculated = 1; +} + int event__preprocess_sample(const event_t *self, struct perf_session *session, struct addr_location *al, symbol_filter_t filter) { @@ -308,6 +323,10 @@ int event__preprocess_sample(const event_t *self, struct perf_session *session, if (thread == NULL) return -1; + if (symbol_conf.comm_list && + !strlist__has_entry(symbol_conf.comm_list, thread->comm)) + goto out_filtered; + dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); thread__find_addr_location(thread, session, cpumode, MAP__FUNCTION, @@ -315,6 +334,29 @@ int event__preprocess_sample(const event_t *self, struct perf_session *session, dump_printf(" ...... dso: %s\n", al->map ? al->map->dso->long_name : al->level == 'H' ? "[hypervisor]" : ""); + /* + * We have to do this here as we may have a dso with no symbol hit that + * has a name longer than the ones with symbols sampled. + */ + if (al->map && !sort_dso.elide && !al->map->dso->slen_calculated) + dso__calc_col_width(al->map->dso); + + if (symbol_conf.dso_list && + (!al->map || !al->map->dso || + !(strlist__has_entry(symbol_conf.dso_list, al->map->dso->short_name) || + (al->map->dso->short_name != al->map->dso->long_name && + strlist__has_entry(symbol_conf.dso_list, al->map->dso->long_name))))) + goto out_filtered; + + if (symbol_conf.sym_list && al->sym && + !strlist__has_entry(symbol_conf.sym_list, al->sym->name)) + goto out_filtered; + + al->filtered = false; + return 0; + +out_filtered: + al->filtered = true; return 0; } diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 164286ace7df..7707897b59f1 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1764,6 +1764,11 @@ int symbol__init(void) if (symbol_conf.try_vmlinux_path && vmlinux_path__init() < 0) return -1; + if (symbol_conf.field_sep && *symbol_conf.field_sep == '.') { + pr_err("'.' is the only non valid --field-separator argument\n"); + return -1; + } + if (setup_list(&symbol_conf.dso_list, symbol_conf.dso_list_str, "dso") < 0) return -1; diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index d61f35074997..60151521f41d 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -56,7 +56,8 @@ struct symbol_conf { bool try_vmlinux_path, use_modules, sort_by_name; - const char *vmlinux_name; + const char *vmlinux_name, + *field_sep; char *dso_list_str, *comm_list_str, *sym_list_str, @@ -79,6 +80,7 @@ struct addr_location { struct symbol *sym; u64 addr; char level; + bool filtered; }; struct dso { -- 2.20.1