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Groups > linux.kernel > #1163723

[PATCH 2/7] perf record: Amend option summaries

From Arnaldo Carvalho de Melo <acme@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 2/7] perf record: Amend option summaries
Date 2015-06-12 04:20 +0200
Message-ID <pAmJA-8n7-19@gated-at.bofh.it> (permalink)
References <pAmJz-8n7-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Peter Zijlstra <peterz@infradead.org>

Because there's too many options and I cannot read, I frequently get
confused between -c and -P, and try to do things like:

  perf record -P 50000 -- foo

Which does not work; try and make the option description slightly longer
and hopefully less confusing.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150610144850.GP19282@twins.programming.kicks-ass.net
[ Do those changes on the man page as well ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-record.txt | 10 +++++++---
 tools/perf/builtin-record.c              |  7 +++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 280533ebf9df..6fdf78625c51 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -152,12 +152,16 @@ OPTIONS
 
 -d::
 --data::
-	Sample addresses.
+	Record the sample addresses.
 
 -T::
 --timestamp::
-	Sample timestamps. Use it with 'perf report -D' to see the timestamps,
-	for instance.
+	Record the sample timestamps. Use it with 'perf report -D' to see the
+	timestamps, for instance.
+
+-P::
+--period::
+	Record the sample period.
 
 -n::
 --no-samples::
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index d3731cce7c1c..4d6cdeb94fe1 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1027,10 +1027,9 @@ struct option __record_options[] = {
 	OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"),
 	OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat,
 		    "per thread counts"),
-	OPT_BOOLEAN('d', "data", &record.opts.sample_address,
-		    "Sample addresses"),
-	OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Sample timestamps"),
-	OPT_BOOLEAN('P', "period", &record.opts.period, "Sample period"),
+	OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"),
+	OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Record the sample timestamps"),
+	OPT_BOOLEAN('P', "period", &record.opts.period, "Record the sample period"),
 	OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples,
 		    "don't sample"),
 	OPT_BOOLEAN('N', "no-buildid-cache", &record.no_buildid_cache,
-- 
2.1.0

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Thread

[GIT PULL 0/7] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 4/7] perf stat: Error out unsupported group leader immediately Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 5/7] perf tools: Fix build failure on 32-bit arch Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 3/7] perf evsel: Display 0x for hex values when printing the attribute Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 7/7] perf tools: Update MANIFEST per files removed from kernel Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 1/7] perf tools: Avoid possible race condition in copyfile() Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 2/7] perf record: Amend option summaries Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200
  [PATCH 6/7] trace: Beautify perf_event_open syscall Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-06-12 04:20 +0200

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