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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-08-07 09:58:03 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-08-07 23:43:37 -0300
commitfcf65bf149afa91b875ffde4455967cb63ee0be9 (patch)
tree9b6137e60d4142b1aa00f9e20860bdd8374035d3 /tools/perf/builtin-script.c
parent8b6ee4c5d48d93527dcf6e36c51cbb7703d7fffb (diff)
downloadop-kernel-dev-fcf65bf149afa91b875ffde4455967cb63ee0be9.zip
op-kernel-dev-fcf65bf149afa91b875ffde4455967cb63ee0be9.tar.gz
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 <avagin@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lkml.kernel.org/n/tip-txkvew2ckko0b594ae8fbnyk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
-rw-r--r--tools/perf/builtin-script.c29
1 files changed, 6 insertions, 23 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 1e60ab7..8dba470 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -262,14 +262,11 @@ static int perf_session__check_output_opt(struct perf_session *session)
return 0;
}
-static void print_sample_start(struct pevent *pevent,
- struct perf_sample *sample,
+static void print_sample_start(struct perf_sample *sample,
struct thread *thread,
struct perf_evsel *evsel)
{
- int type;
struct perf_event_attr *attr = &evsel->attr;
- struct event_format *event;
const char *evname = NULL;
unsigned long secs;
unsigned long usecs;
@@ -307,20 +304,7 @@ static void print_sample_start(struct pevent *pevent,
}
if (PRINT_FIELD(EVNAME)) {
- if (attr->type == PERF_TYPE_TRACEPOINT) {
- /*
- * XXX Do we really need this here?
- * perf_evlist__set_tracepoint_names should have done
- * this already
- */
- type = trace_parse_common_type(pevent,
- sample->raw_data);
- event = pevent_find_event(pevent, type);
- if (event)
- evname = event->name;
- } else
- evname = perf_evsel__name(evsel);
-
+ evname = perf_evsel__name(evsel);
printf("%s: ", evname ? evname : "[unknown]");
}
}
@@ -416,7 +400,7 @@ static void print_sample_bts(union perf_event *event,
}
static void process_event(union perf_event *event __unused,
- struct pevent *pevent,
+ struct pevent *pevent __unused,
struct perf_sample *sample,
struct perf_evsel *evsel,
struct machine *machine,
@@ -427,7 +411,7 @@ static void process_event(union perf_event *event __unused,
if (output[attr->type].fields == 0)
return;
- print_sample_start(pevent, sample, thread, evsel);
+ print_sample_start(sample, thread, evsel);
if (is_bts_event(attr)) {
print_sample_bts(event, sample, evsel, machine, thread);
@@ -435,9 +419,8 @@ static void process_event(union perf_event *event __unused,
}
if (PRINT_FIELD(TRACE))
- print_trace_event(pevent, sample->cpu, sample->raw_data,
- sample->raw_size);
-
+ event_format__print(evsel->tp_format, sample->cpu,
+ sample->raw_data, sample->raw_size);
if (PRINT_FIELD(ADDR))
print_sample_addr(event, sample, machine, thread, attr);
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