perf record: Amend option summaries

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>

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 280533ebf9df43b933e517750c29c141dd3feddc..6fdf78625c51cdcd08048dec45adad287a3e452e 100644 (file)
--- 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 d3731cce7c1cc5d498977f31427895487ed723b9..4d6cdeb94fe1e34876391098fb5302a1ae76bf33 100644 (file)
--- 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,