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| author | David Ahern <dsahern@gmail.com> | 2013-09-04 12:37:43 -0600 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-10-09 11:10:49 -0300 |
| commit | 4bb09192d38ef08f0619667527cabb26354fff89 (patch) | |
| tree | 5f2048a7b56619080f353c12af7ef80508f5375c /tools/perf/builtin-trace.c | |
| parent | c045bf02e47664af67f8970a6a67065ff51acf62 (diff) | |
| download | talos-op-linux-4bb09192d38ef08f0619667527cabb26354fff89.tar.gz talos-op-linux-4bb09192d38ef08f0619667527cabb26354fff89.zip | |
perf trace: Add option to show full timestamp
Current timestamp shown for output is time relative to firt sample. This
patch adds an option to show the absolute perf_clock timestamp which is
useful when comparing output across commands (e.g., perf-trace to
perf-script).
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1378319865-55695-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 7ce036ee863b..bc21140ac782 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -624,6 +624,7 @@ struct trace { struct perf_record_opts opts; struct machine host; u64 base_time; + bool full_time; FILE *output; unsigned long nr_events; struct strlist *ev_qualifier; @@ -1066,7 +1067,7 @@ static int trace__process_sample(struct perf_tool *tool, if (skip_sample(trace, sample)) return 0; - if (trace->base_time == 0) + if (!trace->full_time && trace->base_time == 0) trace->base_time = sample->time; if (handler) @@ -1195,7 +1196,7 @@ again: continue; } - if (trace->base_time == 0) + if (!trace->full_time && trace->base_time == 0) trace->base_time = sample.time; if (type != PERF_RECORD_SAMPLE) { @@ -1433,6 +1434,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) trace__set_duration), OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), OPT_INCR('v', "verbose", &verbose, "be more verbose"), + OPT_BOOLEAN('T', "time", &trace.full_time, + "Show full timestamp, not time relative to first start"), OPT_END() }; int err; |
