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authorJiri Olsa <jolsa@kernel.org>2015-11-05 15:40:54 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-12-17 16:00:33 -0300
commit7b60a7e3a687481553d2b6ec7e6390a6e82f1849 (patch)
tree843c5313ed5291065166ce458ce76d2c0d62cb05 /tools/perf/builtin-stat.c
parente9d6db8e8df42a38f79f264ab58c104e1678b12c (diff)
downloadlinux-7b60a7e3a687481553d2b6ec7e6390a6e82f1849.tar.gz
perf stat record: Synthesize event update events
Synthesize other events stuff not carried within attr event - unit, scale, name. Reported-by: Kan Liang <kan.liang@intel.com> 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/1446734469-11352-11-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
-rw-r--r--tools/perf/builtin-stat.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 10f86a6d7b15..575e2535ea03 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -351,8 +351,19 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
workload_exec_errno = info->si_value.sival_int;
}
+static bool has_unit(struct perf_evsel *counter)
+{
+ return counter->unit && *counter->unit;
+}
+
+static bool has_scale(struct perf_evsel *counter)
+{
+ return counter->scale != 1;
+}
+
static int perf_stat_synthesize_config(bool is_pipe)
{
+ struct perf_evsel *counter;
int err;
if (is_pipe) {
@@ -364,6 +375,54 @@ static int perf_stat_synthesize_config(bool is_pipe)
}
}
+ /*
+ * Synthesize other events stuff not carried within
+ * attr event - unit, scale, name
+ */
+ evlist__for_each(evsel_list, counter) {
+ if (!counter->supported)
+ continue;
+
+ /*
+ * Synthesize unit and scale only if it's defined.
+ */
+ if (has_unit(counter)) {
+ err = perf_event__synthesize_event_update_unit(NULL, counter, process_synthesized_event);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel unit.\n");
+ return err;
+ }
+ }
+
+ if (has_scale(counter)) {
+ err = perf_event__synthesize_event_update_scale(NULL, counter, process_synthesized_event);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel scale.\n");
+ return err;
+ }
+ }
+
+ if (counter->own_cpus) {
+ err = perf_event__synthesize_event_update_cpus(NULL, counter, process_synthesized_event);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel scale.\n");
+ return err;
+ }
+ }
+
+ /*
+ * Name is needed only for pipe output,
+ * perf.data carries event names.
+ */
+ if (is_pipe) {
+ err = perf_event__synthesize_event_update_name(NULL, counter, process_synthesized_event);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel name.\n");
+ return err;
+ }
+ }
+ }
+
err = perf_event__synthesize_thread_map2(NULL, evsel_list->threads,
process_synthesized_event,
NULL);