Commit b6f35ed7 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf record: Add --sample-cpu option 



Adding --sample-cpu option to be able to explicitly enable CPU sample
type. Currently it's only enable implicitly in case the target is cpu
related.

It will be useful for following c2c record tool.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1470074555-24889-8-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 52c5cc36

tools/perf/Documentation/perf-record.txt

+3 −0
Original line number Diff line number Diff line
@@ -192,6 +192,9 @@ OPTIONS 
--period::

	Record the sample period.



--sample-cpu::

	Record the sample cpu.



-n::

--no-samples::

	Don't sample.

tools/perf/builtin-record.c

+1 −0
Original line number Diff line number Diff line
@@ -1434,6 +1434,7 @@ struct option __record_options[] = { 
	OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat,

		    "per thread counts"),

	OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"),

	OPT_BOOLEAN(0, "sample-cpu", &record.opts.sample_cpu, "Record the sample cpu"),

	OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time,

			&record.opts.sample_time_set,

			"Record the sample timestamps"),

tools/perf/perf.h

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ struct record_opts { 
	bool	     sample_weight;

	bool	     sample_time;

	bool	     sample_time_set;

	bool	     sample_cpu;

	bool	     period;

	bool	     running_time;

	bool	     full_auxtrace;

tools/perf/util/evsel.c

+1 −1
Original line number Diff line number Diff line
@@ -882,7 +882,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts, 
		perf_evsel__set_sample_bit(evsel, REGS_INTR);

	}



	if (target__has_cpu(&opts->target))

	if (target__has_cpu(&opts->target) || opts->sample_cpu)

		perf_evsel__set_sample_bit(evsel, CPU);



	if (opts->period)

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