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From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: [PATCH v1 4/4] perf intel-pt, intel-bts: Suppress useless AUX records by default
Date: Tue, 14 Nov 2017 14:30:24 +0200	[thread overview]
Message-ID: <20171114123024.11517-5-alexander.shishkin@linux.intel.com> (raw)
In-Reply-To: <20171114123024.11517-1-alexander.shishkin@linux.intel.com>

This makes use of the shiny new attr::suppress_aux that suppresses the
AUX records that don't carry any 'interesting' information for the
decoders, that is PERF_RECORD_AUX[flag==OVERWRITE], which just stack up
in the DATA buffer for no good reason.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
---
 tools/perf/arch/x86/util/auxtrace.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c
index 6aa3f2a38321..5700e6099608 100644
--- a/tools/perf/arch/x86/util/auxtrace.c
+++ b/tools/perf/arch/x86/util/auxtrace.c
@@ -45,6 +45,8 @@ struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,
 			if (intel_bts_pmu &&
 			    evsel->attr.type == intel_bts_pmu->type)
 				found_bts = true;
+			if (found_pt || found_bts)
+				evsel->attr.suppress_aux = 1;
 		}
 	}
 
-- 
2.15.0

      parent reply	other threads:[~2017-11-14 12:48 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-14 12:30 [PATCH v1 0/4] perf: Allow suppressing useless AUX records Alexander Shishkin
2017-11-14 12:30 ` [PATCH v1 1/4] perf: Allow suppressing " Alexander Shishkin
2017-11-15 12:00   ` Peter Zijlstra
2018-01-15 15:00     ` [PATCH] " Alexander Shishkin
2018-03-29 11:54       ` Peter Zijlstra
2018-03-31  9:35         ` Ingo Molnar
2018-04-03 17:32           ` Will Deacon
2018-04-04 14:53             ` [PATCH v2] perf: Suppress AUX/OVERWRITE records Alexander Shishkin
2018-05-04 12:09               ` Alexander Shishkin
2018-05-04 15:35                 ` Arnaldo Carvalho de Melo
2018-05-04 15:36                   ` Arnaldo Carvalho de Melo
2018-09-25  9:27               ` [tip:perf/core] " tip-bot for Alexander Shishkin
2017-11-14 12:30 ` [PATCH v1 2/4] tools, perf_event.h: Synchronize Alexander Shishkin
2017-11-14 12:30 ` [PATCH v1 3/4] perf tools: Add 'suppress_aux' attribute bit definition and fallback Alexander Shishkin
2017-11-14 12:30 ` Alexander Shishkin [this message]

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