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-rw-r--r--tools/perf/tests/parse-metric.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index ce7be37f0d88..6dc1db1626ad 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -70,6 +70,10 @@ static struct pmu_event pme_test[] = {
.metric_name = "M3",
},
{
+ .metric_expr = "64 * l1d.replacement / 1000000000 / duration_time",
+ .metric_name = "L1D_Cache_Fill_BW",
+},
+{
.name = NULL,
}
};
@@ -107,6 +111,8 @@ static void load_runtime_stat(struct runtime_stat *st, struct evlist *evlist,
evlist__for_each_entry(evlist, evsel) {
count = find_value(evsel->name, vals);
perf_stat__update_shadow_stats(evsel, count, 0, st);
+ if (!strcmp(evsel->name, "duration_time"))
+ update_stats(&walltime_nsecs_stats, count);
}
}
@@ -321,6 +327,23 @@ static int test_recursion_fail(void)
return 0;
}
+static int test_memory_bandwidth(void)
+{
+ double ratio;
+ struct value vals[] = {
+ { .event = "l1d.replacement", .val = 4000000 },
+ { .event = "duration_time", .val = 200000000 },
+ { .event = NULL, },
+ };
+
+ TEST_ASSERT_VAL("failed to compute metric",
+ compute_metric("L1D_Cache_Fill_BW", vals, &ratio) == 0);
+ TEST_ASSERT_VAL("L1D_Cache_Fill_BW, wrong ratio",
+ 1.28 == ratio);
+
+ return 0;
+}
+
static int test_metric_group(void)
{
double ratio1, ratio2;
@@ -353,5 +376,6 @@ int test__parse_metric(struct test *test __maybe_unused, int subtest __maybe_unu
TEST_ASSERT_VAL("DCache_L2 failed", test_dcache_l2() == 0);
TEST_ASSERT_VAL("recursion fail failed", test_recursion_fail() == 0);
TEST_ASSERT_VAL("test metric group", test_metric_group() == 0);
+ TEST_ASSERT_VAL("Memory bandwidth", test_memory_bandwidth() == 0);
return 0;
}