VictoriaMetrics/lib/promscrape/discovery/kubernetes/pod_timing_test.go
Aliaksandr Valialkin f325410c26
lib/promscrape: optimize service discovery speed
- Return meta-labels for the discovered targets via promutils.Labels
  instead of map[string]string. This improves the speed of generating
  meta-labels for discovered targets by up to 5x.

- Remove memory allocations in hot paths during ScrapeWork generation.
  The ScrapeWork contains scrape settings for a single discovered target.
  This improves the service discovery speed by up to 2x.
2022-11-29 21:26:00 -08:00

35 lines
751 B
Go

package kubernetes
import (
"bytes"
"fmt"
"testing"
)
func BenchmarkPodGetTargetLabels(b *testing.B) {
r := bytes.NewBufferString(testPodsList)
objectsByKey, _, err := parsePodList(r)
if err != nil {
panic(fmt.Errorf("BUG: unexpected error: %s", err))
}
var o object
for _, srcObject := range objectsByKey {
o = srcObject
break
}
if o == nil {
panic(fmt.Errorf("BUG: expecting at least a single pod object"))
}
gw := newTestGroupWatcher()
b.ReportAllocs()
b.SetBytes(1)
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
labelss := o.getTargetLabels(gw)
if len(labelss) != 1 {
panic(fmt.Errorf("BUG: unexpected number of labelss returned: %d; want 1", len(labelss)))
}
putLabelssToPool(labelss)
}
})
}