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Commit 7b60a7e3 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf stat record: Synthesize event update events 



Synthesize other events stuff not carried within attr event - unit,
scale, name.

Reported-by: default avatarKan Liang <kan.liang@intel.com>
Signed-off-by: default avatarJiri 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent e9d6db8e

tools/perf/builtin-stat.c

+59 −0
Original line number Diff line number Diff line
@@ -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);