row.new('Resource Usage')
    + row.withPanels([
      panels.timeSeries.bytes('Memory Usage', queries.goMemoryUsage, 'Memory usage of each running instance'),
      panels.timeSeries.allocations('Memory Allocations', queries.goAllocations, 'Details about memory allocations'),
      panels.timeSeries.base('CPU Usage', queries.cpuUsage, 'CPU usage of each running instance'),

      + timeSeries.standardOptions.withUnit('bytes'),

    bytesRate(title, targets, desc=''):
      self.base(title, targets, desc)
      + timeSeries.standardOptions.withUnit('Bps'),

    allocations(title, targets, desc=''):
      self.base(title, targets, desc)
      + timeSeries.standardOptions.withUnit('Bps')
      + timeSeries.standardOptions.withOverrides([
        fieldOverride.byQuery.new('B')

         "type": "timeseries"
      },
      {
         "datasource": {
            "type": "datasource",
            "uid": "-- Mixed --"
         },
         "description": "Details about memory allocations",
         "fieldConfig": {
            "defaults": {
               "custom": {
                  "fillOpacity": 10,
                  "gradientMode": "hue",
                  "showPoints": "never"

			// Allow some slack, but inuse >= N means at least 1 allocation per iteration.
			inuse := after - before
			if inuse >= N {
				t.Errorf("%s did not get GC'ed: %d allocations", what, inuse)

				Sleep(1 * Second)
				runtime.ReadMemStats(&stats)
				after := int64(stats.Mallocs - stats.Frees)
				inuse = after - before
				t.Errorf("after a sleep: %d allocations", inuse)
			}
		})
	}

		klog.V(5).InfoS("Clean up orphaned pod user namespace possible allocation", "podUID", podUID)
		m.releaseWithLock(podUID)
	}

	// Lets remove any existing allocation for a pod that is not "found".
	for podUID := range m.usedBy {
		if allFound.Has(string(podUID)) {
			continue
		}

		klog.V(5).InfoS("Clean up orphaned pod user namespace possible allocation", "podUID", podUID)
		m.releaseWithLock(podUID)
	}

// TODO: fields are not labels, and the validation rules for them do not apply.
func PodToSelectableFields(pod *example.Pod) fields.Set {
	// The purpose of allocation with a given number of elements is to reduce
	// amount of allocations needed to create the fields.Set. If you add any
	// field here or the number of object-meta related fields changes, this should
	// be adjusted.
	podSpecificFieldsSet := make(fields.Set, 5)

	deadline, _ := ctx.Deadline()

	identifier := fmt.Sprintf("key: %q, labels: %q, fields: %q", key, pred.Label, pred.Field)

	// Create a watcher here to reduce memory allocations under lock,
	// given that memory allocation may trigger GC and block the thread.
	// Also note that emptyFunc is a placeholder, until we will be able
	// to compute watcher.forget function (which has to happen under lock).

	data = data[alignment:]
	for i := range data {
		data[i] = byte(i)
	}
	in := make([]byte, 0, h.Size())

	// Warm up
	h.Reset()
	h.Write(data)
	h.Sum(in)
	// Avoid further allocations
	in = in[:0]

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		h.Reset()
		h.Write(data)
		h.Sum(in)
		in = in[:0]
	}

	} else {
		handler = c.handlers.subSingle[*subID]
	}
	if handler == nil {
		gridLogIf(ctx, c.queueMsg(m, muxConnectError{Error: "Invalid Handler for type"}))
		return
	}

	// TODO: This causes allocations, but escape analysis doesn't really show the cause.
	// If another faithful engineer wants to take a stab, feel free.
	go func(m message) {
		var start time.Time
		if m.DeadlineMS > 0 {
			start = time.Now()

	kl.removeOrphanedPodStatuses(allPods, mirrorPods)

	// Remove orphaned pod user namespace allocations (if any).
	klog.V(3).InfoS("Clean up orphaned pod user namespace allocations")
	if err = kl.usernsManager.CleanupOrphanedPodUsernsAllocations(allPods, runningRuntimePods); err != nil {
		klog.ErrorS(err, "Failed cleaning up orphaned pod user namespaces allocations")
	}

	// Remove orphaned volumes from pods that are known not to have any