Messages in this thread Patch in this message | | | From | David Ahern <> | Subject | [PATCH 3/5] perf record: add time-of-day option | Date | Sun, 20 Mar 2011 12:54:35 -0600 |
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Signed-off-by: David Ahern <daahern@cisco.com> --- 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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