VictoriaMetrics/lib/promscrape/config_timing_test.go
Aliaksandr Valialkin be6da5053f
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 21:26:23 -08:00

43 lines
1.1 KiB
Go

package promscrape
import (
"fmt"
"testing"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
)
func BenchmarkGetScrapeWork(b *testing.B) {
swc := &scrapeWorkConfig{
jobName: "job-1",
scheme: "http",
metricsPath: "/metrics",
scrapeIntervalString: "30s",
scrapeTimeoutString: "10s",
}
target := "host1.com:1234"
extraLabels := promutils.NewLabelsFromMap(map[string]string{
"env": "prod",
"datacenter": "dc-foo",
})
metaLabels := promutils.NewLabelsFromMap(map[string]string{
"__meta_foo": "bar",
"__meta_kubernetes_namespace": "default",
"__address__": "foobar.com",
"__meta_sfdfdf_dsfds_fdfdfds_fdfdfd": "true",
})
b.ReportAllocs()
b.SetBytes(1)
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
sw, err := swc.getScrapeWork(target, extraLabels, metaLabels)
if err != nil {
panic(fmt.Errorf("BUG: getScrapeWork returned non-nil error: %w", err))
}
if sw == nil {
panic(fmt.Errorf("BUG: getScrapeWork returned nil ScrapeWork"))
}
}
})
}