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Add the metric data for different extension points

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Signed-off-by: Dave Chen <dave.chen@arm.com>
This commit is contained in:
Dave Chen 2021-08-16 17:37:40 +08:00
parent 355bc3df22
commit 58ab18bc1e
4 changed files with 141 additions and 31 deletions
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15
staging/src/k8s.io/component-base/metrics/testutil/metrics.go
View File

@ -249,10 +249,10 @@ func (vec HistogramVec) Validate() error {
return nil
}
// GetHistogramVecFromGatherer collects a metric, that matches the input labelValue map,
// GetMetricFamilyFromGatherer collects a metric family, that matches the input metricName,
// from a gatherer implementing k8s.io/component-base/metrics.Gatherer interface.
// Used only for testing purposes where we need to gather metrics directly from a running binary (without metrics endpoint).
func GetHistogramVecFromGatherer(gatherer metrics.Gatherer, metricName string, lvMap map[string]string) (HistogramVec, error) {
func GetMetricFamilyFromGatherer(gatherer metrics.Gatherer, metricName string) (*dto.MetricFamily, error) {
var metricFamily *dto.MetricFamily
m, err := gatherer.Gather()
if err != nil {
@ -269,14 +269,15 @@ func GetHistogramVecFromGatherer(gatherer metrics.Gatherer, metricName string, l
return nil, fmt.Errorf("metric %q not found", metricName)
}
if metricFamily.GetMetric() == nil {
return nil, fmt.Errorf("metric %q is empty", metricName)
}
if len(metricFamily.GetMetric()) == 0 {
return nil, fmt.Errorf("metric %q is empty", metricName)
}
return metricFamily, nil
}
// GetHistogramVec collects a vector of Histogram from a metric family, that matches the input labelValue map.
func GetHistogramVec(metricFamily *dto.MetricFamily, lvMap map[string]string) HistogramVec {
vec := make(HistogramVec, 0)
for _, metric := range metricFamily.GetMetric() {
if LabelsMatch(metric, lvMap) {
@ -285,7 +286,7 @@ func GetHistogramVecFromGatherer(gatherer metrics.Gatherer, metricName string, l
}
}
}
return vec, nil
return vec
}
func uint64Ptr(u uint64) *uint64 {

85
staging/src/k8s.io/component-base/metrics/testutil/metrics_test.go
View File

@ -20,11 +20,14 @@ import (
"fmt"
"math"
"reflect"
"sync"
"testing"
"k8s.io/utils/pointer"
"github.com/google/go-cmp/cmp"
dto "github.com/prometheus/client_model/go"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
"k8s.io/utils/pointer"
)
func samples2Histogram(samples []float64, upperBounds []float64) Histogram {
@ -512,3 +515,81 @@ func TestHistogramVec_Validate(t *testing.T) {
})
}
}
func TestGetHistogramVecFromGatherer(t *testing.T) {
var registerMetrics sync.Once
tests := []struct {
name string
lvMap map[string]string
wantVec HistogramVec
}{
{
name: "filter with one label",
lvMap: map[string]string{"label1": "value1-0"},
wantVec: HistogramVec{
&Histogram{&dto.Histogram{
SampleCount: uint64Ptr(1),
SampleSum: pointer.Float64Ptr(1.5),
Bucket: []*dto.Bucket{
{CumulativeCount: uint64Ptr(0), UpperBound: pointer.Float64Ptr(0.5)},
{CumulativeCount: uint64Ptr(1), UpperBound: pointer.Float64Ptr(2.0)},
{CumulativeCount: uint64Ptr(1), UpperBound: pointer.Float64Ptr(5.0)},
},
}},
&Histogram{&dto.Histogram{
SampleCount: uint64Ptr(1),
SampleSum: pointer.Float64Ptr(2.5),
Bucket: []*dto.Bucket{
{CumulativeCount: uint64Ptr(0), UpperBound: pointer.Float64Ptr(0.5)},
{CumulativeCount: uint64Ptr(0), UpperBound: pointer.Float64Ptr(2.0)},
{CumulativeCount: uint64Ptr(1), UpperBound: pointer.Float64Ptr(5.0)},
},
}},
},
},
{
name: "filter with two labels",
lvMap: map[string]string{"label1": "value1-0", "label2": "value2-1"},
wantVec: HistogramVec{
&Histogram{&dto.Histogram{
SampleCount: uint64Ptr(1),
SampleSum: pointer.Float64Ptr(2.5),
Bucket: []*dto.Bucket{
{CumulativeCount: uint64Ptr(0), UpperBound: pointer.Float64Ptr(0.5)},
{CumulativeCount: uint64Ptr(0), UpperBound: pointer.Float64Ptr(2.0)},
{CumulativeCount: uint64Ptr(1), UpperBound: pointer.Float64Ptr(5.0)},
},
}},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
buckets := []float64{.5, 2, 5}
// HistogramVec has two labels defined.
labels := []string{"label1", "label2"}
HistogramOpts := &metrics.HistogramOpts{
Namespace: "namespace",
Name: "metric_test_name",
Subsystem: "subsystem",
Help: "histogram help message",
Buckets: buckets,
}
vec := metrics.NewHistogramVec(HistogramOpts, labels)
registerMetrics.Do(func() {
legacyregistry.MustRegister(vec)
})
// Observe two metrics with same value for label1 but different value of label2.
vec.WithLabelValues("value1-0", "value2-0").Observe(1.5)
vec.WithLabelValues("value1-0", "value2-1").Observe(2.5)
vec.WithLabelValues("value1-1", "value2-0").Observe(3.5)
vec.WithLabelValues("value1-1", "value2-1").Observe(4.5)
metricName := fmt.Sprintf("%s_%s_%s", HistogramOpts.Namespace, HistogramOpts.Subsystem, HistogramOpts.Name)
metricFamily, _ := GetMetricFamilyFromGatherer(legacyregistry.DefaultGatherer, metricName)
histogramVec := GetHistogramVec(metricFamily, tt.lvMap)
if diff := cmp.Diff(tt.wantVec, histogramVec); diff != "" {
t.Errorf("Got unexpected HistogramVec (-want +got):\n%s", diff)
}
})
}
}

27
test/integration/scheduler_perf/scheduler_perf_test.go
View File

@ -53,13 +53,14 @@ import (
)
const (
configFile = "config/performance-config.yaml"
createNodesOpcode = "createNodes"
createNamespacesOpcode = "createNamespaces"
createPodsOpcode = "createPods"
createPodSetsOpcode = "createPodSets"
churnOpcode = "churn"
barrierOpcode = "barrier"
configFile = "config/performance-config.yaml"
createNodesOpcode = "createNodes"
createNamespacesOpcode = "createNamespaces"
createPodsOpcode = "createPods"
createPodSetsOpcode = "createPodSets"
churnOpcode = "churn"
barrierOpcode = "barrier"
extensionPointsLabelName = "extension_point"
// Two modes supported in "churn" operator.
@ -71,11 +72,13 @@ const (
var (
defaultMetricsCollectorConfig = metricsCollectorConfig{
Metrics: []string{
"scheduler_scheduling_algorithm_predicate_evaluation_seconds",
"scheduler_scheduling_algorithm_priority_evaluation_seconds",
"scheduler_e2e_scheduling_duration_seconds",
"scheduler_pod_scheduling_duration_seconds",
Metrics: map[string]*labelValues{
"scheduler_framework_extension_point_duration_seconds": {
label: extensionPointsLabelName,
values: []string{"Filter", "Score"},
},
"scheduler_e2e_scheduling_duration_seconds": nil,
"scheduler_pod_scheduling_duration_seconds": nil,
},
}
)

45
test/integration/scheduler_perf/util.go
View File

@ -177,9 +177,15 @@ func dataItems2JSONFile(dataItems DataItems, namePrefix string) error {
return ioutil.WriteFile(destFile, b, 0644)
}
type labelValues struct {
label string
values []string
}
// metricsCollectorConfig is the config to be marshalled to YAML config file.
// NOTE: The mapping here means only one filter is supported, either value in the list of `values` is able to be collected.
type metricsCollectorConfig struct {
Metrics []string
Metrics map[string]*labelValues
}
// metricsCollector collects metrics from legacyregistry.DefaultGatherer.Gather() endpoint.
@ -202,22 +208,38 @@ func (*metricsCollector) run(ctx context.Context) {
func (pc *metricsCollector) collect() []DataItem {
var dataItems []DataItem
for _, metric := range pc.Metrics {
dataItem := collectHistogramVec(metric, pc.labels)
if dataItem != nil {
dataItems = append(dataItems, *dataItem)
for name, labelVals := range pc.Metrics {
metricFamily, err := testutil.GetMetricFamilyFromGatherer(legacyregistry.DefaultGatherer, name)
if err != nil {
klog.Error(err)
return dataItems
}
// no filter is specified, aggregate all the metrics within the same metricFamily.
if labelVals == nil {
vec := testutil.GetHistogramVec(metricFamily, nil)
dataItem := collectHistogramData(vec, pc.labels, nil, name)
if dataItem != nil {
dataItems = append(dataItems, *dataItem)
}
} else {
// fetch the metric from metricFamily which match each of the lvMap.
for _, value := range labelVals.values {
lvMap := map[string]string{labelVals.label: value}
vec := testutil.GetHistogramVec(metricFamily, lvMap)
dataItem := collectHistogramData(vec, pc.labels, lvMap, name)
if dataItem != nil {
dataItems = append(dataItems, *dataItem)
}
}
}
}
return dataItems
}
func collectHistogramVec(metric string, labels map[string]string) *DataItem {
vec, err := testutil.GetHistogramVecFromGatherer(legacyregistry.DefaultGatherer, metric, nil)
if err != nil {
klog.Error(err)
func collectHistogramData(vec testutil.HistogramVec, labels, lvMap map[string]string, metric string) *DataItem {
if len(vec) == 0 {
return nil
}
if err := vec.Validate(); err != nil {
klog.Error(err)
return nil
@ -236,6 +258,9 @@ func collectHistogramVec(metric string, labels map[string]string) *DataItem {
for k, v := range labels {
labelMap[k] = v
}
for k, v := range lvMap {
labelMap[k] = v
}
return &DataItem{
Labels: labelMap,
Data: map[string]float64{