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perf stat: Use thread map index for shadow stat 

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.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220930202110.845199-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2022-09-30 13:21:07 -07:00 committed by Arnaldo Carvalho de Melo
parent dfca2d692d
commit 87ae87fd6c
3 changed files with 12 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
tools/perf/util/stat-display.c
View File

@ -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);
}

2
tools/perf/util/stat-shadow.c
View File

@ -33,7 +33,7 @@ struct saved_value {
struct evsel *evsel;
enum stat_type type;
int ctx;
int map_idx; /* cpu map index */
int map_idx; /* cpu or thread map index */
struct cgroup *cgrp;
struct runtime_stat *stat;
struct stats stats;

8
tools/perf/util/stat.c
View File

@ -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: