[PATCH 4/6] perf stat: Use thread map index for shadow stat

Namhyung Kim
2022-09-26T20:08:21Z

When AGGR_THREAD is active, it aggregates the values for each thread.
Previously it used cpu map index which is invalid for AGGR_THREAD so
it had to use separate runtime stats with index 0.

But it can just use the rt_stat with thread_map_index. Rename the
first_shadow_map_idx() and make it return the thread index.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/stat-display.c | 20 +++++++++-----------
tools/perf/util/stat.c | 8 ++------
2 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 234491f43c36..570e2c04d47d 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -442,7 +442,7 @@ static void print_metric_header(struct perf_stat_config *config,
fprintf(os->fh, "%*s ", config->metric_only_len, unit);
}

-static int first_shadow_cpu_map_idx(struct perf_stat_config *config,
+static int first_shadow_map_idx(struct perf_stat_config *config,
struct evsel *evsel, const struct aggr_cpu_id *id)
{
struct perf_cpu_map *cpus = evsel__cpus(evsel);
@@ -452,6 +452,9 @@ static int first_shadow_cpu_map_idx(struct perf_stat_config *config,
if (config->aggr_mode == AGGR_NONE)
return perf_cpu_map__idx(cpus, id->cpu);

+ if (config->aggr_mode == AGGR_THREAD)
+ return id->thread;
+
if (!config->aggr_get_id)
return 0;

@@ -646,7 +649,7 @@ static void printout(struct perf_stat_config *config, struct aggr_cpu_id id, int
}

perf_stat__print_shadow_stats(config, counter, uval,
- first_shadow_cpu_map_idx(config, counter, &id),
+ first_shadow_map_idx(config, counter, &id),
&out, &config->metric_events, st);
if (!config->csv_output && !config->metric_only && !config->json_output) {
print_noise(config, counter, noise);
@@ -676,7 +679,7 @@ static void aggr_update_shadow(struct perf_stat_config *config,
val += perf_counts(counter->counts, idx, 0)->val;
}
perf_stat__update_shadow_stats(counter, val,
- first_shadow_cpu_map_idx(config, counter, &id),
+ first_shadow_map_idx(config, counter, &id),
&rt_stat);
}
}
@@ -979,14 +982,9 @@ static void print_aggr_thread(struct perf_stat_config *config,
fprintf(output, "%s", prefix);

id = buf[thread].id;
- if (config->stats)
- printout(config, id, 0, buf[thread].counter, buf[thread].uval,
- prefix, buf[thread].run, buf[thread].ena, 1.0,
- &config->stats[id.thread]);
- else
- printout(config, id, 0, buf[thread].counter, buf[thread].uval,
- prefix, buf[thread].run, buf[thread].ena, 1.0,
- &rt_stat);
+ printout(config, id, 0, buf[thread].counter, buf[thread].uval,
+ prefix, buf[thread].run, buf[thread].ena, 1.0,
+ &rt_stat);
fputc('\n', output);
}

diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index e1d3152ce664..21137c9d5259 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -389,12 +389,8 @@ process_counter_values(struct perf_stat_config *config, struct evsel *evsel,
}

if (config->aggr_mode == AGGR_THREAD) {
- if (config->stats)
- perf_stat__update_shadow_stats(evsel,
- count->val, 0, &config->stats[thread]);
- else
- perf_stat__update_shadow_stats(evsel,
- count->val, 0, &rt_stat);
+ perf_stat__update_shadow_stats(evsel, count->val,
+ thread, &rt_stat);
}
break;
case AGGR_GLOBAL:
--
2.37.3.998.g577e59143f-goog