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-rw-r--r--src/testing/benchmark_test.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/testing/benchmark_test.go b/src/testing/benchmark_test.go
index 3b1dc8275b..7e456f9a40 100644
--- a/src/testing/benchmark_test.go
+++ b/src/testing/benchmark_test.go
@@ -176,5 +176,8 @@ func ExampleB_ReportMetric() {
// This metric is per-operation, so divide by b.N and
// report it as a "/op" unit.
b.ReportMetric(float64(compares)/float64(b.N), "compares/op")
+ // This metric is per-time, so divide by b.Elapsed and
+ // report it as a "/ns" unit.
+ b.ReportMetric(float64(compares)/float64(b.Elapsed().Nanoseconds()), "compares/ns")
})
}