[PATCH v2 38/43] perf stat: Command line PMU metric filtering

Ian Rogers
2023-04-28T07:46:38Z

Wire up the --cputype value to limit which metrics are parsed.

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/builtin-stat.c | 20 ++++++++++++--------
tools/perf/util/metricgroup.c | 3 ++-
tools/perf/util/metricgroup.h | 1 +
3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index bb1a4ecd7558..f4e572f9de6b 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1783,6 +1783,7 @@ static int add_default_attributes(void)
};

struct perf_event_attr default_null_attrs[] = {};
+ const char *pmu = parse_events_option_args.pmu_filter ?: "all";

/* Set attrs if no event is selected and !null_run: */
if (stat_config.null_run)
@@ -1794,11 +1795,11 @@ static int add_default_attributes(void)
* will use this approach. To determine transaction support
* on an architecture test for such a metric name.
*/
- if (!metricgroup__has_metric("all", "transaction")) {
+ if (!metricgroup__has_metric(pmu, "transaction")) {
pr_err("Missing transaction metrics");
return -1;
}
- return metricgroup__parse_groups(evsel_list, "transaction",
+ return metricgroup__parse_groups(evsel_list, pmu, "transaction",
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
@@ -1823,7 +1824,7 @@ static int add_default_attributes(void)
smi_reset = true;
}

- if (!metricgroup__has_metric("all", "smi")) {
+ if (!metricgroup__has_metric(pmu, "smi")) {
pr_err("Missing smi metrics");
return -1;
}
@@ -1831,7 +1832,7 @@ static int add_default_attributes(void)
if (!force_metric_only)
stat_config.metric_only = true;

- return metricgroup__parse_groups(evsel_list, "smi",
+ return metricgroup__parse_groups(evsel_list, pmu, "smi",
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
@@ -1864,7 +1865,8 @@ static int add_default_attributes(void)
"Please print the result regularly, e.g. -I1000\n");
}
str[8] = stat_config.topdown_level + '0';
- if (metricgroup__parse_groups(evsel_list, str,
+ if (metricgroup__parse_groups(evsel_list,
+ pmu, str,
/*metric_no_group=*/false,
/*metric_no_merge=*/false,
/*metric_no_threshold=*/true,
@@ -1903,14 +1905,14 @@ static int add_default_attributes(void)
* caused by exposing latent bugs. This is fixed properly in:
* https://lore.kernel.org/lkml/bff481ba-e60a-763f-0aa0-3ee53302c480@linux.intel.com/
*/
- if (metricgroup__has_metric("all", "TopdownL1") && !perf_pmu__has_hybrid()) {
+ if (metricgroup__has_metric(pmu, "TopdownL1") && !perf_pmu__has_hybrid()) {
struct evlist *metric_evlist = evlist__new();
struct evsel *metric_evsel;

if (!metric_evlist)
return -1;

- if (metricgroup__parse_groups(metric_evlist, "TopdownL1",
+ if (metricgroup__parse_groups(metric_evlist, pmu, "TopdownL1",
/*metric_no_group=*/false,
/*metric_no_merge=*/false,
/*metric_no_threshold=*/true,
@@ -2434,7 +2436,9 @@ int cmd_stat(int argc, const char **argv)
* knowing the target is system-wide.
*/
if (metrics) {
- metricgroup__parse_groups(evsel_list, metrics,
+ const char *pmu = parse_events_option_args.pmu_filter ?: "all";
+
+ metricgroup__parse_groups(evsel_list, pmu, metrics,
stat_config.metric_no_group,
stat_config.metric_no_merge,
stat_config.metric_no_threshold,
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 17478eb33bdc..4245b23d8efe 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -1648,6 +1648,7 @@ static int parse_groups(struct evlist *perf_evlist,
}

int metricgroup__parse_groups(struct evlist *perf_evlist,
+ const char *pmu,
const char *str,
bool metric_no_group,
bool metric_no_merge,
@@ -1661,7 +1662,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
if (!table)
return -EINVAL;

- return parse_groups(perf_evlist, "all", str, metric_no_group, metric_no_merge,
+ return parse_groups(perf_evlist, pmu, str, metric_no_group, metric_no_merge,
metric_no_threshold, user_requested_cpu_list, system_wide,
/*fake_pmu=*/NULL, metric_events, table);
}
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 08e9b9e953ec..bf18274c15df 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -67,6 +67,7 @@ struct metric_event *metricgroup__lookup(struct rblist *metric_events,
struct evsel *evsel,
bool create);
int metricgroup__parse_groups(struct evlist *perf_evlist,
+ const char *pmu,
const char *str,
bool metric_no_group,
bool metric_no_merge,
--
2.40.1.495.gc816e09b53d-goog