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From: Jin Yao <yao.jin@linux.intel.com>
To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
	mingo@redhat.com, alexander.shishkin@linux.intel.com
Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com,
	kan.liang@intel.com, yao.jin@intel.com,
	Jin Yao <yao.jin@linux.intel.com>
Subject: [PATCH v5 2/5] perf counts: Reset prev_raw_counts counts
Date: Thu, 14 May 2020 13:36:35 +0800	[thread overview]
Message-ID: <20200514053638.3736-3-yao.jin@linux.intel.com> (raw)
In-Reply-To: <20200514053638.3736-1-yao.jin@linux.intel.com>

When we want to reset the evsel->prev_raw_counts, zeroing the aggr
is not enough, we need to reset the perf_counts too.

The perf_counts__reset zeros the perf_counts, and it should zero
the aggr too. This patch changes perf_counts__reset to non-static,
and calls it in evsel__reset_prev_raw_counts to reset the
prev_raw_counts.

 v4:
 ---
 Zeroing the aggr in perf_counts__reset and use it to reset
 prev_raw_counts.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
 tools/perf/util/counts.c | 4 +++-
 tools/perf/util/counts.h | 1 +
 tools/perf/util/stat.c   | 7 ++-----
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
index 615c9f3e95cb..582f3aeaf5e4 100644
--- a/tools/perf/util/counts.c
+++ b/tools/perf/util/counts.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdlib.h>
+#include <string.h>
 #include "evsel.h"
 #include "counts.h"
 #include <linux/zalloc.h>
@@ -42,10 +43,11 @@ void perf_counts__delete(struct perf_counts *counts)
 	}
 }
 
-static void perf_counts__reset(struct perf_counts *counts)
+void perf_counts__reset(struct perf_counts *counts)
 {
 	xyarray__reset(counts->loaded);
 	xyarray__reset(counts->values);
+	memset(&counts->aggr, 0, sizeof(struct perf_counts_values));
 }
 
 void evsel__reset_counts(struct evsel *evsel)
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
index 8f556c6d98fa..7ff36bf6d644 100644
--- a/tools/perf/util/counts.h
+++ b/tools/perf/util/counts.h
@@ -37,6 +37,7 @@ perf_counts__set_loaded(struct perf_counts *counts, int cpu, int thread, bool lo
 
 struct perf_counts *perf_counts__new(int ncpus, int nthreads);
 void perf_counts__delete(struct perf_counts *counts);
+void perf_counts__reset(struct perf_counts *counts);
 
 void evsel__reset_counts(struct evsel *evsel);
 int evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads);
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index f4a44df9b221..e397815f0dfb 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -163,11 +163,8 @@ static void evsel__free_prev_raw_counts(struct evsel *evsel)
 
 static void evsel__reset_prev_raw_counts(struct evsel *evsel)
 {
-	if (evsel->prev_raw_counts) {
-		evsel->prev_raw_counts->aggr.val = 0;
-		evsel->prev_raw_counts->aggr.ena = 0;
-		evsel->prev_raw_counts->aggr.run = 0;
-       }
+	if (evsel->prev_raw_counts)
+		perf_counts__reset(evsel->prev_raw_counts);
 }
 
 static int evsel__alloc_stats(struct evsel *evsel, bool alloc_raw)
-- 
2.17.1


  parent reply	other threads:[~2020-05-14  5:38 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-14  5:36 [PATCH v5 0/5] perf stat: Support overall statistics for interval mode Jin Yao
2020-05-14  5:36 ` [PATCH v5 1/5] perf stat: Fix wrong per-thread runtime stat " Jin Yao
2020-05-14  5:36 ` Jin Yao [this message]
2020-05-14  5:36 ` [PATCH v5 3/5] perf stat: Copy counts from prev_raw_counts to evsel->counts Jin Yao
2020-05-14  5:36 ` [PATCH v5 4/5] perf stat: Save aggr value to first member of prev_raw_counts Jin Yao
2020-05-18 12:48   ` Jiri Olsa
2020-05-18 14:44     ` Jin, Yao
2020-05-14  5:36 ` [PATCH v5 5/5] perf stat: Report summary for interval mode Jin Yao
2020-05-18 12:47   ` Jiri Olsa
2020-05-19  2:51     ` Jin, Yao
2020-05-14  9:53 ` [PATCH v5 0/5] perf stat: Support overall statistics " kajoljain
2020-05-14 13:44   ` Jin, Yao

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