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From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Andi Kleen <ak@linux.intel.com>,
	linux-kernel@vger.kernel.org,
	Adrian Hunter <adrian.hunter@intel.com>
Subject: [PATCH 14/16] perf tools: Rearrange perf_evsel__config_leader_sampling()
Date: Wed,  1 Apr 2020 13:16:11 +0300	[thread overview]
Message-ID: <20200401101613.6201-15-adrian.hunter@intel.com> (raw)
In-Reply-To: <20200401101613.6201-1-adrian.hunter@intel.com>

In preparation for adding support for leader sampling with AUX area events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 tools/perf/util/record.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index ce383fc1bbbc..924c58b3fc36 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -172,24 +172,24 @@ static void perf_evsel__config_leader_sampling(struct evsel *evsel)
 	struct perf_event_attr *attr = &evsel->core.attr;
 	struct evsel *leader = evsel->leader;
 
+	if (leader == evsel || !leader->sample_read)
+		return;
+
 	/*
 	 * Disable sampling for all group members other
 	 * than leader in case leader 'leads' the sampling.
 	 */
-	if (leader != evsel && leader->sample_read) {
-		attr->freq           = 0;
-		attr->sample_freq    = 0;
-		attr->sample_period  = 0;
-		attr->write_backward = 0;
+	attr->freq           = 0;
+	attr->sample_freq    = 0;
+	attr->sample_period  = 0;
+	attr->write_backward = 0;
 
-		/*
-		 * We don't get sample for slave events, we make them
-		 * when delivering group leader sample. Set the slave
-		 * event to follow the master sample_type to ease up
-		 * report.
-		 */
-		attr->sample_type = leader->core.attr.sample_type;
-	}
+	/*
+	 * We don't get a sample for slave events, we make them when delivering
+	 * the group leader sample. Set the slave event to follow the master
+	 * sample_type to ease up reporting.
+	 */
+	attr->sample_type = leader->core.attr.sample_type;
 }
 
 void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,
-- 
2.17.1


  parent reply	other threads:[~2020-04-01 10:18 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-01 10:15 [PATCH 00/16] perf intel-pt: Sampling improvements Adrian Hunter
2020-04-01 10:15 ` [PATCH 01/16] perf auxtrace: Add ->evsel_is_auxtrace() callback Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:15 ` [PATCH 02/16] perf intel-pt: Implement " Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 03/16] perf intel-bts: " Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 04/16] perf arm-spe: " Adrian Hunter
2020-04-02  3:03   ` Leo Yan
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 05/16] perf cs-etm: " Adrian Hunter
2020-04-01 17:11   ` Mathieu Poirier
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 06/16] perf s390-cpumsf: " Adrian Hunter
2020-04-01 14:10   ` Thomas Richter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 07/16] perf auxtrace: For reporting purposes, un-group AUX area event Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 08/16] perf auxtrace: Add an option to synthesize callchains for regular events Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 09/16] perf thread-stack: Add thread_stack__sample_late() Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 10/16] perf tools: Add support for synthesized sample type Adrian Hunter
2020-04-16 14:54   ` Arnaldo Carvalho de Melo
2020-04-16 14:57     ` Arnaldo Carvalho de Melo
2020-04-16 15:01       ` Arnaldo Carvalho de Melo
2020-04-22 12:17   ` [tip: perf/core] perf evsel: Be consistent when looking which evsel PERF_SAMPLE_ bits are set tip-bot2 for Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] perf evsel: Add support for synthesized sample type tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 11/16] perf intel-pt: Add support for synthesizing callchains for regular events Adrian Hunter
2020-04-16 15:14   ` Arnaldo Carvalho de Melo
2020-04-17 13:50     ` Adrian Hunter
2020-04-17 21:37       ` Arnaldo Carvalho de Melo
2020-04-20  3:04         ` Andi Kleen
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 12/16] perf tools: Move and globalize perf_evsel__find_pmu() and perf_evsel__is_aux_event() Adrian Hunter
2020-04-18 11:50   ` Arnaldo Carvalho de Melo
2020-04-18 12:04     ` Arnaldo Carvalho de Melo
2020-04-22 12:17   ` [tip: perf/core] perf evsel: " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 13/16] perf tools: Move leader-sampling configuration Adrian Hunter
2020-04-16 15:29   ` Arnaldo Carvalho de Melo
2020-04-22 12:17   ` [tip: perf/core] perf evlist: " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` Adrian Hunter [this message]
2020-04-22 12:17   ` [tip: perf/core] perf evsel: Rearrange perf_evsel__config_leader_sampling() tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 15/16] perf tools: Allow multiple read formats Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] perf evlist: " tip-bot2 for Adrian Hunter
2020-04-01 10:16 ` [PATCH 16/16] perf tools: Add support for leader-sampling with AUX area events Adrian Hunter
2020-04-22 12:17   ` [tip: perf/core] " tip-bot2 for Adrian Hunter

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