[PATCH 14/14] perf tests: Add parse metric test for frontend metric

Jiri Olsa
2020-05-24T22:43:16Z

Adding new metri test for frontend metric. It's stolen
from x86 pmu events.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/tests/parse-metric.c | 46 +++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)

diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 3005d27c5c48..38f20850bba3 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -15,6 +15,11 @@ static struct pmu_event pme_test[] = {
.metric_expr = "inst_retired.any / cpu_clk_unhalted.thread",
.metric_name = "IPC",
},
+{
+ .metric_expr = "idq_uops_not_delivered.core / (4 * (( ( cpu_clk_unhalted.thread / 2 ) * "
+ "( 1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk ) )))",
+ .metric_name = "Frontend_Bound_SMT",
+},
};

static struct pmu_events_map map = {
@@ -110,8 +115,49 @@ static int test_ipc(void)
return 0;
}

+static int test_frontend(void)
+{
+ double ratio;
+ struct rblist metric_events = { 0 };
+ struct evlist *evlist;
+ struct evsel *evsel;
+ struct value vals[] = {
+ { .event = "idq_uops_not_delivered.core", .val = 300 },
+ { .event = "cpu_clk_unhalted.thread", .val = 200 },
+ { .event = "cpu_clk_unhalted.one_thread_active", .val = 400 },
+ { .event = "cpu_clk_unhalted.ref_xclk", .val = 600 },
+ { 0 },
+ };
+ struct runtime_stat st;
+ int err;
+
+ evlist = evlist__new();
+ if (!evlist)
+ return -1;
+
+ err = metricgroup__parse_groups_test(evlist, &map,
+ "Frontend_Bound_SMT",
+ false, false,
+ &metric_events);
+
+ TEST_ASSERT_VAL("failed to parse metrics", err == 0);
+
+ runtime_stat__init(&st);
+ load_runtime_stat(&st, evlist, vals);
+
+ evsel = evlist__first(evlist);
+ ratio = compute_single(&metric_events, evsel, &st);
+
+ TEST_ASSERT_VAL("Frontend_Bound_SMT failed, wrong ratio", ratio == 0.45);
+
+ runtime_stat__exit(&st);
+ evlist__delete(evlist);
+ return 0;
+}
+
int test__parse_metric(struct test *test __maybe_unused, int subtest __maybe_unused)
{
TEST_ASSERT_VAL("IPC failed", test_ipc() == 0);
+ TEST_ASSERT_VAL("frontend failed", test_frontend() == 0);
return 0;
}
--
2.25.4