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>
This commit is contained in:
Peter Zijlstra 2015-06-10 16:48:50 +02:00 committed by Arnaldo Carvalho de Melo
parent d7c72606d9
commit 5610032135
2 changed files with 10 additions and 7 deletions

View File

@ -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::

View File

@ -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,