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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>, Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	linux-perf-users@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Leo Yan <leo.yan@linaro.org>,
	Zhengjun Xing <zhengjun.xing@linux.intel.com>
Subject: [PATCH 2/6] perf stat: Don't call perf_stat_evsel_id_init() repeatedly
Date: Mon, 26 Sep 2022 13:07:53 -0700	[thread overview]
Message-ID: <20220926200757.1161448-3-namhyung@kernel.org> (raw)
In-Reply-To: <20220926200757.1161448-1-namhyung@kernel.org>

The evsel__reset_stat_priv() is called more than once if user gave -r
option for multiple run.  But it doesn't need to re-initialize the id.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/stat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 6bcd3dc32a71..e1d3152ce664 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -135,7 +135,6 @@ static void evsel__reset_stat_priv(struct evsel *evsel)
 	struct perf_stat_evsel *ps = evsel->stats;
 
 	init_stats(&ps->res_stats);
-	perf_stat_evsel_id_init(evsel);
 }
 
 static int evsel__alloc_stat_priv(struct evsel *evsel)
@@ -143,6 +142,7 @@ static int evsel__alloc_stat_priv(struct evsel *evsel)
 	evsel->stats = zalloc(sizeof(struct perf_stat_evsel));
 	if (evsel->stats == NULL)
 		return -ENOMEM;
+	perf_stat_evsel_id_init(evsel);
 	evsel__reset_stat_priv(evsel);
 	return 0;
 }
-- 
2.37.3.998.g577e59143f-goog


  parent reply	other threads:[~2022-09-26 20:08 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26 20:07 [PATCHSET 0/6] perf stat: Small random cleanups (v1) Namhyung Kim
2022-09-26 20:07 ` [PATCH 1/6] perf stat: Convert perf_stat_evsel.res_stats array Namhyung Kim
2022-09-28 10:33   ` James Clark
2022-09-26 20:07 ` Namhyung Kim [this message]
2022-09-28 10:41   ` [PATCH 2/6] perf stat: Don't call perf_stat_evsel_id_init() repeatedly James Clark
2022-09-26 20:07 ` [PATCH 3/6] perf stat: Rename saved_value->cpu_map_idx Namhyung Kim
2022-09-28 10:50   ` James Clark
2022-09-28 23:56     ` Namhyung Kim
2022-09-29  1:58       ` Ian Rogers
2022-09-26 20:07 ` [PATCH 4/6] perf stat: Use thread map index for shadow stat Namhyung Kim
2022-09-28 14:49   ` James Clark
2022-09-29  2:10   ` Ian Rogers
2022-09-29  4:55     ` Namhyung Kim
2022-09-26 20:07 ` [PATCH 5/6] perf stat: Kill unused per-thread runtime stats Namhyung Kim
2022-09-28 14:51   ` James Clark
2022-09-26 20:07 ` [PATCH 6/6] perf stat: Don't compare runtime stat for shadow stats Namhyung Kim
2022-09-28 14:52   ` James Clark

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