[11/13] perf tools: Add test_generic_metric function
diff mbox series

Message ID 20200602214741.1218986-12-jolsa@kernel.org
State New
Headers show
Series
  • perf tests: Add metrics tests
Related show

Commit Message

Jiri Olsa June 2, 2020, 9:47 p.m. UTC
Adding test_generic_metric that prepares and runs given metric
over the data from struct runtime_stat object.

Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/stat-shadow.c | 14 ++++++++++++++
 tools/perf/util/stat.h        |  3 +++
 2 files changed, 17 insertions(+)

Patch
diff mbox series

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 27be7ce2fff4..8fdef47005e6 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -842,6 +842,20 @@  static void generic_metric(struct perf_stat_config *config,
 	expr__ctx_clear(&pctx);
 }
 
+double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st)
+{
+	struct expr_parse_ctx pctx;
+	double ratio;
+
+	if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0)
+		return 0.;
+
+	if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))
+		return 0.;
+
+	return ratio;
+}
+
 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 				   struct evsel *evsel,
 				   double avg, int cpu,
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index f75ae679eb28..6911c7249199 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -230,4 +230,7 @@  perf_evlist__print_counters(struct evlist *evlist,
 			    struct target *_target,
 			    struct timespec *ts,
 			    int argc, const char **argv);
+
+struct metric_expr;
+double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st);
 #endif