From fbe51fba82901fd15d3e0a068388fcd7d02dc047 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 20 Mar 2017 13:16:59 -0700 Subject: [PATCH] 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: Andi Kleen Acked-by: Jiri Olsa Link: http://lkml.kernel.org/r/20170320201711.14142-2-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 103 +++++++++++++++++++++++++++++--------- 1 file changed, 80 insertions(+), 23 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f53f449d864d..5c13a0f40adc 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -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); -- 2.20.1