buf.Reset()
				templ.Execute(&buf, "World")
			}
		})
	})
}

func TestReportMetric(t *testing.T) {
	res := testing.Benchmark(func(b *testing.B) {
		b.ReportMetric(12345, "ns/op")
		b.ReportMetric(0.2, "frobs/op")
	})
	// Test built-in overriding.
	if res.NsPerOp() != 12345 {
		t.Errorf("NsPerOp: expected %v, actual %v", 12345, res.NsPerOp())
	}
	// Test stringing.

	slices.Sort(pauses)
	var total uint64
	for _, ns := range pauses {
		total += ns
	}
	// ns/op for this benchmark is average STW time.
	b.ReportMetric(float64(total)/float64(b.N), "ns/op")
	b.ReportMetric(float64(pauses[len(pauses)*95/100]), "p95-ns/STW")
	b.ReportMetric(float64(pauses[len(pauses)*50/100]), "p50-ns/STW")
}

func BenchmarkPoolExpensiveNew(b *testing.B) {