Commit fbe51fba authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo
Browse files

perf stat: Factor out callback for collecting event values 



To be used in next patch to support automatic summing of alias events.

v2: Move check for bad results to next patch
v3: Remove trivial addition.
v4: Use perf_evsel__cpus instead of evsel->cpus

Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-2-andi@firstfloor.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ed7b339f

tools/perf/builtin-stat.c

+80 −23
Original line number Diff line number Diff line
@@ -1182,11 +1182,46 @@ static void aggr_update_shadow(void) 
	}

}



static void collect_data(struct perf_evsel *counter,

			    void (*cb)(struct perf_evsel *counter, void *data,

				       bool first),

			    void *data)

{

	cb(counter, data, true);

}



struct aggr_data {

	u64 ena, run, val;

	int id;

	int nr;

	int cpu;

};



static void aggr_cb(struct perf_evsel *counter, void *data, bool first)

{

	struct aggr_data *ad = data;

	int cpu, s2;



	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {

		struct perf_counts_values *counts;



		s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);

		if (s2 != ad->id)

			continue;

		if (first)

			ad->nr++;

		counts = perf_counts(counter->counts, cpu, 0);

		ad->val += counts->val;

		ad->ena += counts->ena;

		ad->run += counts->run;

	}

}



static void print_aggr(char *prefix)

{

	FILE *output = stat_config.output;

	struct perf_evsel *counter;

	int cpu, s, s2, id, nr;

	int s, id, nr;

	double uval;

	u64 ena, run, val;

	bool first;
@@ -1201,23 +1236,20 @@ static void print_aggr(char *prefix) 
	 * Without each counter has its own line.

	 */

	for (s = 0; s < aggr_map->nr; s++) {

		struct aggr_data ad;

		if (prefix && metric_only)

			fprintf(output, "%s", prefix);



		id = aggr_map->map[s];

		ad.id = id = aggr_map->map[s];

		first = true;

		evlist__for_each_entry(evsel_list, counter) {

			val = ena = run = 0;

			nr = 0;

			for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {

				s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);

				if (s2 != id)

					continue;

				val += perf_counts(counter->counts, cpu, 0)->val;

				ena += perf_counts(counter->counts, cpu, 0)->ena;

				run += perf_counts(counter->counts, cpu, 0)->run;

				nr++;

			}

			ad.val = ad.ena = ad.run = 0;

			ad.nr = 0;

			collect_data(counter, aggr_cb, &ad);

			nr = ad.nr;

			ena = ad.ena;

			run = ad.run;

			val = ad.val;

			if (first && metric_only) {

				first = false;

				aggr_printout(counter, id, nr);
@@ -1261,6 +1293,21 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix) 
	}

}



struct caggr_data {

	double avg, avg_enabled, avg_running;

};



static void counter_aggr_cb(struct perf_evsel *counter, void *data,

			    bool first __maybe_unused)

{

	struct caggr_data *cd = data;

	struct perf_stat_evsel *ps = counter->priv;



	cd->avg += avg_stats(&ps->res_stats[0]);

	cd->avg_enabled += avg_stats(&ps->res_stats[1]);

	cd->avg_running += avg_stats(&ps->res_stats[2]);

}



/*

 * Print out the results of a single counter:

 * aggregated counts in system-wide mode
@@ -1268,23 +1315,30 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix) 
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)

{

	FILE *output = stat_config.output;

	struct perf_stat_evsel *ps = counter->priv;

	double avg = avg_stats(&ps->res_stats[0]);

	double uval;

	double avg_enabled, avg_running;

	struct caggr_data cd = { .avg = 0.0 };



	avg_enabled = avg_stats(&ps->res_stats[1]);

	avg_running = avg_stats(&ps->res_stats[2]);

	collect_data(counter, counter_aggr_cb, &cd);



	if (prefix && !metric_only)

		fprintf(output, "%s", prefix);



	uval = avg * counter->scale;

	printout(-1, 0, counter, uval, prefix, avg_running, avg_enabled, avg);

	uval = cd.avg * counter->scale;

	printout(-1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled, cd.avg);

	if (!metric_only)

		fprintf(output, "\n");

}



static void counter_cb(struct perf_evsel *counter, void *data,

		       bool first __maybe_unused)

{

	struct aggr_data *ad = data;



	ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;

	ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;

	ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;

}



/*

 * Print out the results of a single counter:

 * does not use aggregated count in system-wide
@@ -1297,9 +1351,12 @@ static void print_counter(struct perf_evsel *counter, char *prefix) 
	int cpu;



	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {

		val = perf_counts(counter->counts, cpu, 0)->val;

		ena = perf_counts(counter->counts, cpu, 0)->ena;

		run = perf_counts(counter->counts, cpu, 0)->run;

		struct aggr_data ad = { .cpu = cpu };



		collect_data(counter, counter_cb, &ad);

		val = ad.val;

		ena = ad.ena;

		run = ad.run;



		if (prefix)

			fprintf(output, "%s", prefix);

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