topic/benchmark_test.go at main · ostcar/topic · GitHub

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package topic_test

import (
	"context"
	"strconv"
	"testing"

	"github.com/ostcar/topic"
)

func benchmarkPublishWithXReceivers(count int, b *testing.B) {
	ctx := b.Context()

	top := topic.New[string]()
	for range count {
		// Starts a receiver that listens to the topic until shutdown is called.
		go func() {
			var id uint64
			var values []string
			for {
				id, values, _ = top.ReceiveSince(ctx, id)
				if len(values) == 0 {
					return
				}
			}
		}()
	}

	b.ResetTimer()

	for b.Loop() {
		top.Publish("value")
	}
}

func BenchmarkPublishWithXReceivers1(b *testing.B)     { benchmarkPublishWithXReceivers(1, b) }
func BenchmarkPublishWithXReceivers10(b *testing.B)    { benchmarkPublishWithXReceivers(10, b) }
func BenchmarkPublishWithXReceivers100(b *testing.B)   { benchmarkPublishWithXReceivers(100, b) }
func BenchmarkPublishWithXReceivers1000(b *testing.B)  { benchmarkPublishWithXReceivers(1_000, b) }
func BenchmarkPublishWithXReceivers10000(b *testing.B) { benchmarkPublishWithXReceivers(10_000, b) }

func benchmarkRetrieveBigTopic(count int, b *testing.B) {
	top := topic.New[string]()
	for i := range count {
		top.Publish("value" + strconv.Itoa(i))
	}
	b.ResetTimer()

	for b.Loop() {
		top.ReceiveSince(b.Context(), 0)
	}
}

func BenchmarkRetrieveBigTopic1(b *testing.B)      { benchmarkRetrieveBigTopic(1, b) }
func BenchmarkRetrieveBigTopic10(b *testing.B)     { benchmarkRetrieveBigTopic(10, b) }
func BenchmarkRetrieveBigTopic100(b *testing.B)    { benchmarkRetrieveBigTopic(100, b) }
func BenchmarkRetrieveBigTopic1000(b *testing.B)   { benchmarkRetrieveBigTopic(1_000, b) }
func BenchmarkRetrieveBigTopic10000(b *testing.B)  { benchmarkRetrieveBigTopic(10_000, b) }
func BenchmarkRetrieveBigTopic100000(b *testing.B) { benchmarkRetrieveBigTopic(100_000, b) }

func benchmarkRetrieveLastBigTopic(count int, b *testing.B) {
	top := topic.New[string]()
	for i := range count {
		top.Publish("value" + strconv.Itoa(i))
	}
	id := top.LastID()
	ctx := context.Background()

	b.ResetTimer()

	for b.Loop() {
		top.ReceiveSince(ctx, id-1)
	}
}

func BenchmarkRetrieveLastBigTopic1(b *testing.B)      { benchmarkRetrieveLastBigTopic(1, b) }
func BenchmarkRetrieveLastBigTopic10(b *testing.B)     { benchmarkRetrieveLastBigTopic(10, b) }
func BenchmarkRetrieveLastBigTopic100(b *testing.B)    { benchmarkRetrieveLastBigTopic(100, b) }
func BenchmarkRetrieveLastBigTopic1000(b *testing.B)   { benchmarkRetrieveLastBigTopic(1_000, b) }
func BenchmarkRetrieveLastBigTopic10000(b *testing.B)  { benchmarkRetrieveLastBigTopic(10_000, b) }
func BenchmarkRetrieveLastBigTopic100000(b *testing.B) { benchmarkRetrieveLastBigTopic(100_000, b) }