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authorJiri Olsa <jolsa@kernel.org>2016-08-01 21:02:35 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-08-02 22:33:29 +0300
commitb6f35ed774aeaf441e66cfa243fd1dff1321d69e (patch)
treea8cd6420e9bc852b23ebdc1303bc45b328c19164
parent52c5cc363f2c5f50e88d2d340c039cc72797d69a (diff)
downloadlinux-b6f35ed774aeaf441e66cfa243fd1dff1321d69e.tar.xz
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: Jiri 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: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/Documentation/perf-record.txt3
-rw-r--r--tools/perf/builtin-record.c1
-rw-r--r--tools/perf/perf.h1
-rw-r--r--tools/perf/util/evsel.c2
4 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 69966abf65d1..379a2bed07c0 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -192,6 +192,9 @@ OPTIONS
--period::
Record the sample period.
+--sample-cpu::
+ Record the sample cpu.
+
-n::
--no-samples::
Don't sample.
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8f2c16d9275f..6355902fbfc8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -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"),
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index a7e0f1497244..cb0f1356ff81 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -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;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 4c2b31dc4e4d..d9b80ef881cd 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -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)