VictoriaMetrics/lib/tenantmetrics/counter_map_timing_test.go

package tenantmetrics

import (
	"runtime"
	"sync"
	"testing"

	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
)

func BenchmarkCounterMapGrowth(b *testing.B) {
	f := func(b *testing.B, numTenants uint32, nProcs int) {
		b.Helper()

		for range b.N {
			cm := NewCounterMap("foobar")
			var wg sync.WaitGroup
			for range nProcs {
				wg.Go(func() {
					for i := range numTenants {
						cm.Get(&auth.Token{AccountID: i, ProjectID: i}).Inc()
					}
				})
			}
			wg.Wait()
		}
	}

	b.Run("n=100,nProcs=GOMAXPROCS", func(b *testing.B) {
		f(b, 100, runtime.GOMAXPROCS(0))
	})

	b.Run("n=100,nProcs=2", func(b *testing.B) {
		f(b, 100, 2)
	})

	b.Run("n=1000,nProcs=2", func(b *testing.B) {
		f(b, 1000, 2)
	})

	b.Run("n=10000,nProcs=2", func(b *testing.B) {
		f(b, 10000, 2)
	})
}