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perf evsel: Introduce perf_evsel__is_group_event() helper

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The perf_evsel__is_group_event function is for checking whether given
evsel needs event group view support or not.  Please note that it's
different to the existing perf_evsel__is_group_leader() which checks
only the given evsel is a leader or a standalone (i.e. non-group) event
regardless of event group feature.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2013-03-05 14:53:26 +09:00
committed by Arnaldo Carvalho de Melo
parent b1dd443296
commit 759ff497e0
6 changed files with 34 additions and 19 deletions
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7
tools/perf/ui/hist.c
View File

@@ -16,6 +16,7 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
{
int ret;
struct hists *hists = he->hists;
struct perf_evsel *evsel = hists_to_evsel(hists);
if (fmt_percent) {
double percent = 0.0;
@@ -28,15 +29,11 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
} else
ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
if (symbol_conf.event_group) {
if (perf_evsel__is_group_event(evsel)) {
int prev_idx, idx_delta;
struct perf_evsel *evsel = hists_to_evsel(hists);
struct hist_entry *pair;
int nr_members = evsel->nr_members;
if (nr_members <= 1)
return ret;
prev_idx = perf_evsel__group_idx(evsel);
list_for_each_entry(pair, &he->pairs.head, pairs.node) {