From: James Clark <james.clark@arm.com>
To: coresight@lists.linaro.org, leo.yan@linaro.org
Cc: al.grant@arm.com, branislav.rankov@arm.com, denik@chromium.org,
suzuki.poulose@arm.com, anshuman.khandual@arm.com,
James Clark <james.clark@arm.com>,
Mike Leach <mike.leach@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/3] perf cs-etm: Handle valid-but-zero timestamps
Date: Thu, 13 May 2021 17:35:17 +0300 [thread overview]
Message-ID: <20210513143520.22694-1-james.clark@arm.com> (raw)
This patchset is an alternate solution to the original: "[RFC PATCH]
perf cs-etm: Handle valid-but-zero timestamps". It uses the existing
Z option to --itrace instead of modifying the behaviour of the
cs_etm__etmq_get_timestamp() function.
Using timeless mode is equivalent to ignoring 0 timestamps, as
suggested by Mike and Leo.
It applies on top of "[PATCH v3 0/2] perf cs-etm: Set time on
synthesised samples to preserve ordering"
James Clark (3):
perf cs-etm: Move synth_opts initialisation
perf cs-etm: Start reading 'Z' --itrace option
perf cs-etm: Prevent and warn on underflows during timestamp
calculation.
.../perf/util/cs-etm-decoder/cs-etm-decoder.c | 45 ++++++++++++++-----
tools/perf/util/cs-etm.c | 20 +++++----
2 files changed, 46 insertions(+), 19 deletions(-)
--
2.28.0
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next reply other threads:[~2021-05-13 14:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-13 14:35 James Clark [this message]
2021-05-13 14:35 ` [PATCH v2 1/3] perf cs-etm: Move synth_opts initialisation James Clark
2021-05-13 14:35 ` [PATCH v2 2/3] perf cs-etm: Start reading 'Z' --itrace option James Clark
2021-05-13 14:35 ` [PATCH v2 3/3] perf cs-etm: Prevent and warn on underflows during timestamp calculation James Clark
2021-05-16 8:52 ` Leo Yan
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