b.ReportMetric(float64(latencies[len(latencies)*90/100]), "p90-ns")
			b.ReportMetric(float64(latencies[len(latencies)*99/100]), "p99-ns")
		}
		return func(b *testing.B) {
			b.Run("idle", runOne)

			b.Run("loaded", func(b *testing.B) {
				stop := applyGCLoad(b)
				runOne(b)
				// Make sure to stop the timer before we wait! The load created above

}

type metricSet struct {
	latencies        *metrics.HistogramVec
	latenciesSummary *metrics.SummaryVec
}

// MustRegister registers all the prometheus metrics in the metricSet.
func (m *metricSet) mustRegister() {
	legacyregistry.MustRegister(m.latencies)
	if m.latenciesSummary != nil {
		legacyregistry.MustRegister(m.latenciesSummary)
	}
}

	b.ReportMetric(0, "ns/op")
	b.ReportMetric(0, "B/op")
	b.ReportMetric(0, "allocs/op")

	// Sort latencies then report percentiles.
	slices.Sort(latencies)
	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) {

			Dest: otherRegion,
		}: 100 * time.Millisecond,
	}

	networkLatencyCases := []struct {
		enable    bool
		latencies map[mesh.RouteKey]time.Duration
	}{
		{
			enable:    false,
			latencies: make(map[mesh.RouteKey]time.Duration),
		},
		{
			enable:    true,
			latencies: networkLatencies,
		},
	}

	weightCases := []struct {
		enableWeighting       bool

	b.ReportMetric(0, "allocs/op")

	// Sort latencies then report percentiles.
	sort.Slice(latencies, func(i, j int) bool {
		return latencies[i] < latencies[j]
	})
	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")
}

var readMetricsSink [1024]interface{}

		in a runnable state before actually running. Bucket counts
		increase monotonically.

	/sched/pauses/stopping/gc:seconds
		Distribution of individual GC-related stop-the-world stopping
		latencies. This is the time it takes from deciding to stop the
		world until all Ps are stopped. This is a subset of the total
		GC-related stop-the-world time (/sched/pauses/total/gc:seconds).

		Kind:        KindFloat64Histogram,
		Cumulative:  true,
	},
	{
		Name:        "/sched/pauses/stopping/gc:seconds",

			elapsed:            time.Duration(10) * time.Second,
			metrics: []string{
				"apiserver_storage_transformation_duration_seconds",
			},
			want: `
			# HELP apiserver_storage_transformation_duration_seconds [ALPHA] Latencies in seconds of value transformation operations.
			# TYPE apiserver_storage_transformation_duration_seconds histogram

			Help: "Etcd request latency in seconds for each operation and object type.",
			// Etcd request latency in seconds for each operation and object type.
			// This metric is used for verifying etcd api call latencies SLO
			// keep consistent with apiserver metric 'requestLatencies' in
			// staging/src/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
			Buckets: []float64{0.005, 0.025, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.25, 1.5, 2, 3,

							"grpc_type": true,
							"grpc_code": true,
						})
						return mf, nil
					},
				},
			},

			// etcd 3.0 metric format for grpc request latencies,
			// rewritten to the etcd 3.1+ format.
			"etcd_grpc_unary_requests_duration_seconds": {
				rewriters: []rewriteFunc{
					func(mf *dto.MetricFamily) (*dto.MetricFamily, error) {
						mf = deepCopyMetricFamily(mf)