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Date: Thu, 11 Jul 2019 11:19:22 -0700
From: Andi Kleen <andi@...stfloor.org>
To: acme@...nel.org
Cc: jolsa@...nel.org, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 3/3] perf script: Improve man page description of metrics
From: Andi Kleen <ak@...ux.intel.com>
Clarify that a metric is based on events, not referring
to itself. Also some improvements with the sentences.
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
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
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