From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: [PATCH 3/3] perf script: Improve man page description of metrics Date: Thu, 11 Jul 2019 11:19:22 -0700 Message-ID: <20190711181922.18765-3-andi@firstfloor.org> References: <20190711181922.18765-1-andi@firstfloor.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190711181922.18765-1-andi@firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org To: acme@kernel.org Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Andi Kleen List-Id: linux-perf-users.vger.kernel.org From: Andi Kleen Clarify that a metric is based on events, not referring to itself. Also some improvements with the sentences. Signed-off-by: Andi Kleen --- tools/perf/Documentation/perf-script.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 042b9e5dcc32..caaab28f8400 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -228,11 +228,11 @@ OPTIONS With the metric option perf script can compute metrics for sampling periods, similar to perf stat. This requires - specifying a group with multiple metrics with the :S option + specifying a group with multiple events defining metrics with the :S option for perf record. perf will sample on the first event, and - compute metrics for all the events in the group. Please note + print computed metrics for all the events in the group. Please note that the metric computed is averaged over the whole sampling - period, not just for the sample point. + period (since the last sample), not just for the sample point. For sample events it's possible to display misc field with -F +misc option, following letters are displayed for each bit: -- 2.20.1