From fcf65bf149afa91b875ffde4455967cb63ee0be9 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 7 Aug 2012 09:58:03 -0300 Subject: perf evsel: Cache associated event_format We already lookup the associated event_format when reading the perf.data header, so that we can cache the tracepoint name in evsel->name, so do it a little further and save the event_format itself, so that we can avoid relookups in tools that need to access it. Change the tools to take the most obvious advantage, when they were using pevent_find_event directly. More work is needed for further removing the need of a pointer to pevent, such as when asking for event field values ("common_pid" and the other common fields and per event_format fields). This is something that was planned but only got actually done when Andrey Wagin needed to do this lookup at perf_tool->sample() time, when we don't have access to pevent (session->pevent) to use with pevent_find_event(). Cc: Andrey Wagin Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Signed-off-by: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/n/tip-txkvew2ckko0b594ae8fbnyk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-lock.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) (limited to 'tools/perf/builtin-lock.c') diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index b3c428548868..142b3033e4be 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -1,6 +1,7 @@ #include "builtin.h" #include "perf.h" +#include "util/evsel.h" #include "util/util.h" #include "util/cache.h" #include "util/symbol.h" @@ -718,14 +719,10 @@ process_lock_release_event(void *data, trace_handler->release_event(&release_event, event, cpu, timestamp, thread); } -static void -process_raw_event(void *data, int cpu, u64 timestamp, struct thread *thread) +static void process_raw_event(struct perf_evsel *evsel, void *data, int cpu, + u64 timestamp, struct thread *thread) { - struct event_format *event; - int type; - - type = trace_parse_common_type(session->pevent, data); - event = pevent_find_event(session->pevent, type); + struct event_format *event = evsel->tp_format; if (!strcmp(event->name, "lock_acquire")) process_lock_acquire_event(data, event, cpu, timestamp, thread); @@ -849,7 +846,7 @@ static void dump_info(void) static int process_sample_event(struct perf_tool *tool __used, union perf_event *event, struct perf_sample *sample, - struct perf_evsel *evsel __used, + struct perf_evsel *evsel, struct machine *machine) { struct thread *thread = machine__findnew_thread(machine, sample->tid); @@ -860,7 +857,7 @@ static int process_sample_event(struct perf_tool *tool __used, return -1; } - process_raw_event(sample->raw_data, sample->cpu, sample->time, thread); + process_raw_event(evsel, sample->raw_data, sample->cpu, sample->time, thread); return 0; } -- cgit v1.2.3