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perf evsel: Precalculate the sample size

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So that we don't have to store it in the perf_session instance, because
in the future perf_session instances may have multiple evlists, each
with different sample_type/sizes.

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>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ptod86fxkpgq3h62m9refkv4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2012-08-01 18:53:11 -03:00
parent 0ecf4f0c02
commit bde09467b5
6 changed files with 24 additions and 25 deletions
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14
tools/perf/util/session.c
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@@ -16,6 +16,19 @@
#include "cpumap.h"
#include "event-parse.h"
int perf_session__parse_sample(struct perf_session *session,
const union perf_event *event,
struct perf_sample *sample)
{
struct perf_evsel *first;
first = list_entry(session->evlist->entries.next, struct perf_evsel, node);
return perf_event__parse_sample(event, session->sample_type,
first->sample_size,
session->sample_id_all, sample,
session->header.needs_swap);
}
static int perf_session__open(struct perf_session *self, bool force)
{
struct stat input_stat;
@@ -83,7 +96,6 @@ out_close:
void perf_session__update_sample_type(struct perf_session *self)
{
self->sample_type = perf_evlist__sample_type(self->evlist);
self->sample_size = __perf_evsel__sample_size(self->sample_type);
self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist);
self->host_machine.id_hdr_size = self->id_hdr_size;