From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
James Clark <James.Clark@arm.com>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Al Grant <Al.Grant@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v1 0/3] perf arm-spe: Correct recording configurations
Date: Thu, 29 Apr 2021 23:00:57 +0800 [thread overview]
Message-ID: <20210429150100.282180-1-leo.yan@linaro.org> (raw)
This patch series is to correct Arm SPE recording configurations.
As found by James Clark, it's not reasonable for the current code for
sample flags CPU/TIME/TID which are hard coded. For TIME sample flag,
since it's always enabled, then Arm SPE has no chance for timeless
tracing; for CPU sample flag, it's not needed for per-thread mode;
for TID sample flag, it's redundant for AUX and dummy events.
This series corrects the sample flags setting, and it enables
timestamp for per-cpu mode tracing by default.
This patch set has been tested on Arm64 Hisilicon D06 platform.
Leo Yan (3):
perf arm-spe: Correct sample flags for SPE event
perf arm-spe: Correct sample flags for dummy event
perf arm-spe: Enable timestamp for per-cpu mode
tools/perf/arch/arm64/util/arm-spe.c | 66 +++++++++++++++++++++-------
1 file changed, 50 insertions(+), 16 deletions(-)
--
2.25.1
next reply other threads:[~2021-04-29 15:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 15:00 Leo Yan [this message]
2021-04-29 15:00 ` [PATCH v1 1/3] perf arm-spe: Correct sample flags for SPE event Leo Yan
2021-04-29 15:00 ` [PATCH v1 2/3] perf arm-spe: Correct sample flags for dummy event Leo Yan
2021-05-12 14:39 ` James Clark
2021-05-12 15:17 ` James Clark
2021-05-12 15:37 ` Leo Yan
2021-05-12 15:23 ` Leo Yan
2021-05-18 12:54 ` Arnaldo Carvalho de Melo
2021-05-18 14:18 ` Leo Yan
2021-04-29 15:01 ` [PATCH v1 3/3] perf arm-spe: Enable timestamp for per-cpu mode Leo Yan
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