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perf stat: Add new field in stat_config to enable hardware aware grouping

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Hardware counter and event information could be used to help creating event
groups that better utilize hardware counters and improve multiplexing.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Weilin Wang <weilin.wang@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Samantha Alt <samantha.alt@intel.com>
Link: https://lore.kernel.org/r/20240412210756.309828-2-weilin.wang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Weilin Wang 2024-04-12 14:07:41 -07:00 committed by Arnaldo Carvalho de Melo
parent 10b6ee3b59
commit 03f2357017
4 changed files with 10 additions and 0 deletions
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5
tools/perf/builtin-stat.c
View File

@ -2085,6 +2085,7 @@ static int add_default_attributes(void)
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping,
&stat_config.metric_events);
}
@ -2118,6 +2119,7 @@ static int add_default_attributes(void)
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping,
&stat_config.metric_events);
}
@ -2152,6 +2154,7 @@ static int add_default_attributes(void)
/*metric_no_threshold=*/true,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping,
&stat_config.metric_events) < 0)
return -1;
}
@ -2193,6 +2196,7 @@ static int add_default_attributes(void)
/*metric_no_threshold=*/true,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping,
&stat_config.metric_events) < 0)
return -1;
@ -2727,6 +2731,7 @@ int cmd_stat(int argc, const char **argv)
stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
stat_config.hardware_aware_grouping,
&stat_config.metric_events);
zfree(&metrics);

3
tools/perf/util/metricgroup.c
View File

@ -1690,12 +1690,15 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
bool metric_no_threshold,
const char *user_requested_cpu_list,
bool system_wide,
bool hardware_aware_grouping,
struct rblist *metric_events)
{
const struct pmu_metrics_table *table = pmu_metrics_table__find();
if (!table)
return -EINVAL;
if (hardware_aware_grouping)
pr_debug("Use hardware aware grouping instead of traditional metric grouping method\n");
return parse_groups(perf_evlist, pmu, str, metric_no_group, metric_no_merge,
metric_no_threshold, user_requested_cpu_list, system_wide,

1
tools/perf/util/metricgroup.h
View File

@ -77,6 +77,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
bool metric_no_threshold,
const char *user_requested_cpu_list,
bool system_wide,
bool hardware_aware_grouping,
struct rblist *metric_events);
int metricgroup__parse_groups_test(struct evlist *evlist,
const struct pmu_metrics_table *table,

1
tools/perf/util/stat.h
View File

@ -87,6 +87,7 @@ struct perf_stat_config {
bool metric_no_group;
bool metric_no_merge;
bool metric_no_threshold;
bool hardware_aware_grouping;
bool stop_read_counter;
bool iostat_run;
char *user_requested_cpu_list;