b.ReportMetric(float64(latencies[len(latencies)*50/100]), "p50-ns")
	b.ReportMetric(float64(latencies[len(latencies)*90/100]), "p90-ns")
	b.ReportMetric(float64(latencies[len(latencies)*99/100]), "p99-ns")
}

func TestUserForcedGC(t *testing.T) {
	// Test that runtime.GC() triggers a GC even if GOGC=off.
	defer debug.SetGCPercent(debug.SetGCPercent(-1))

	var ms1, ms2 runtime.MemStats
	runtime.ReadMemStats(&ms1)
	runtime.GC()