// Find the bucket currently containing trackMass by computing
	// the cumulative sum.
	sum := 0.0
	for i, val := range d.hist[:] {
		newSum := sum + val
		if newSum > mass {
			// mass falls in bucket i.
			d.trackBucket = i
			d.trackSum = sum
			return
		}
		sum = newSum
	}
	d.trackBucket = len(d.hist)
	d.trackSum = sum
}

// approxInvCumulativeSum is like invCumulativeSum, but specifically

	resultCopyBinariesFailure     = "COPY_BINARIES_FAILURE"
	resultCreateKubeConfigFailure = "CREATE_KUBECONFIG_FAILURE"
	resultCreateCNIConfigFailure  = "CREATE_CNI_CONFIG_FAILURE"

	cniInstalls = monitoring.NewSum(
		"istio_cni_installs_total",
		"Total number of CNI plugins installed by the Istio CNI installer",
	)

	installReady = monitoring.NewGauge(
		"istio_cni_install_ready",

var RequestType = monitoring.CreateLabel("request_type")

const (
	TokenExchange = "token_exchange"
	CSR           = "csr"
)

var NumOutgoingRetries = monitoring.NewSum(
	"num_outgoing_retries",
	"Number of outgoing retry requests (e.g. to a token exchange server, CA, etc.)",

			if oldf.parents[p] != newf.parents[p] {
				continue Loop
			}
		}
		if len(oldf.parents) > len(newf.parents) {
			if oldf.parents[len(newf.parents)] == newf.name {
				conflicts = append(conflicts, i)
			}
		} else if len(oldf.parents) < len(newf.parents) {
			if newf.parents[len(oldf.parents)] == oldf.name {
				conflicts = append(conflicts, i)
			}
		} else {

// See the License for the specific language governing permissions and
// limitations under the License.

package model

import "istio.io/istio/pkg/monitoring"

var providerLookupClusterFailures = monitoring.NewSum(
	"provider_lookup_cluster_failures",
	"Number of times a cluster lookup failed",
)

func IncLookupClusterFailures(provider string) {
	providerLookupClusterFailures.With(typeTag.Value(provider)).Increment()

package crdclient

import (
	"istio.io/istio/pkg/monitoring"
)

var (
	typeTag  = monitoring.CreateLabel("type")
	eventTag = monitoring.CreateLabel("event")

	k8sEvents = monitoring.NewSum(
		"pilot_k8s_cfg_events",
		"Events from k8s config.",
	)
)

func incrementEvent(kind, event string) {
	k8sEvents.With(typeTag.Value(kind), eventTag.Value(event)).Increment()

	repairType = "repair"
	labelType  = "label"

	resultLabel   = monitoring.CreateLabel("result")
	resultSuccess = "success"
	resultSkip    = "skip"
	resultFail    = "fail"

	podsRepaired = monitoring.NewSum(
		"istio_cni_repair_pods_repaired_total",
		"Total number of pods repaired by repair controller",
	)

// limitations under the License.

package monitoring_test

import "istio.io/istio/pkg/monitoring"

var (
	protocol = monitoring.CreateLabel("protocol")

	requests = monitoring.NewSum(
		"requests_total",
		"Number of requests handled, by protocol",
	)
)

func ExampleNewSum() {
	// increment on every http request
	requests.With(protocol.Value("http")).Increment()

	"istio.io/istio/pkg/cluster"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/monitoring"
)

var (
	clusterLabel = monitoring.CreateLabel("cluster")

	errorMetric = monitoring.NewSum(
		"controller_sync_errors_total",
		"Total number of errorMetric syncing controllers.",
	)

	mu       sync.RWMutex
	handlers = map[cluster.ID]cache.WatchErrorHandler{}
)

	return ValAndOff(int64(val)<<32 + int64(uint32(off)))
}

func (x ValAndOff) canAdd32(off int32) bool {
	newoff := x.Off64() + int64(off)
	return newoff == int64(int32(newoff))
}
func (x ValAndOff) canAdd64(off int64) bool {
	newoff := x.Off64() + off
	return newoff == int64(int32(newoff))
}

func (x ValAndOff) addOffset32(off int32) ValAndOff {
	if !x.canAdd32(off) {