Signed-off-by: David Ahern <[email protected]>
---
tools/perf/Documentation/perf-record.txt | 4 ++++
tools/perf/builtin-record.c | 5 +++++
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/tools/perf/Documentation/perf-record.txt
b/tools/perf/Documentation/perf-record.txt
index 5a520f8..b56b5c7 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -116,6 +116,10 @@ OPTIONS
Sample timestamps. Use it with 'perf report -D' to see the timestamps,
for instance.
+--tod::
+ Collect data for time-of-day strings when printing events. This option
+ adds the realtime attribute to samples.
+
-n::
--no-samples::
Don't sample.
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 6febcc1..df15256 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -53,6 +53,7 @@ static bool nodelay
= false;
static bool raw_samples = false;
static bool sample_id_all_avail = true;
static bool system_wide = false;
+static bool want_tod = false;
static pid_t target_pid = -1;
static pid_t target_tid = -1;
static pid_t child_pid = -1;
@@ -214,6 +215,9 @@ static void config_attr(struct perf_evsel *evsel, struct
perf_evlist *evlist)
attr->sample_type |= PERF_SAMPLE_CPU;
}
+ if (want_tod)
+ attr->sample_type |= PERF_SAMPLE_REALTIME;
+
if (nodelay) {
attr->watermark = 0;
attr->wakeup_events = 1;
@@ -764,6 +768,7 @@ const struct option record_options[] = {
OPT_BOOLEAN('d', "data", &sample_address,
"Sample addresses"),
OPT_BOOLEAN('T', "timestamp", &sample_time, "Sample timestamps"),
+ OPT_BOOLEAN(0, "tod", &want_tod, "Collect data for Time-of-day
strings."),
OPT_BOOLEAN('n', "no-samples", &no_samples,
"don't sample"),
OPT_BOOLEAN('N', "no-buildid-cache", &no_buildid_cache,
--
1.7.4
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