perf report: Add dump_read function
Adding dump_read function to gather all the dump output of read
function. Adding output of enabled and running times and id if enabled
(3 new lines with '...' prefix below).
$ perf record -s ...
$ perf report -D
958358311769 0x91f8 [0x40]: PERF_RECORD_READ: 3339 3339 cycles:u 0
... time enabled : 958358313731
... time running : 958358313731
... id : 80
Committer note:
Do not use 'read' as a variable name as it breaks the build on older
systems, such as RHEL6:
CC /tmp/build/perf/util/session.o
cc1: warnings being treated as errors
util/session.c: In function 'dump_read':
util/session.c:1132: error: declaration of 'read' shadows a global declaration
/usr/include/bits/unistd.h:35: error: shadowed declaration is here
mv: cannot stat `/tmp/build/perf/util/.session.o.tmp': No such file or directory
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170824162737.7813-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index dc453f8..ac86369 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1127,6 +1127,30 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
sample_read__printf(sample, evsel->attr.read_format);
}
+static void dump_read(struct perf_evsel *evsel, union perf_event *event)
+{
+ struct read_event *read_event = &event->read;
+ u64 read_format;
+
+ if (!dump_trace)
+ return;
+
+ printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
+ evsel ? perf_evsel__name(evsel) : "FAIL",
+ event->read.value);
+
+ read_format = evsel->attr.read_format;
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+ printf("... time enabled : %" PRIu64 "\n", read_event->time_enabled);
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+ printf("... time running : %" PRIu64 "\n", read_event->time_running);
+
+ if (read_format & PERF_FORMAT_ID)
+ printf("... id : %" PRIu64 "\n", read_event->id);
+}
+
static struct machine *machines__find_for_cpumode(struct machines *machines,
union perf_event *event,
struct perf_sample *sample)
@@ -1271,6 +1295,7 @@ static int machines__deliver_event(struct machines *machines,
evlist->stats.total_lost_samples += event->lost_samples.lost;
return tool->lost_samples(tool, event, sample, machine);
case PERF_RECORD_READ:
+ dump_read(evsel, event);
return tool->read(tool, event, sample, evsel, machine);
case PERF_RECORD_THROTTLE:
return tool->throttle(tool, event, sample, machine);