Simple benchmark for Go channel performance on different data types

chanperf_test.go

package chanperf

import (
	"testing"
)

func BenchmarkInt(b *testing.B) {
	fin := make(chan bool)
	comm := make(chan int)
	go func() {
		for i := 0; i < b.N; i++ {
			comm <- i
		}
		fin <- true
	}()
	go func() {
		for i := 0; i < b.N; i++ {
			<-comm
		}
		fin <- true
	}()
	<-fin
	<-fin
}

func BenchmarkString(b *testing.B) {
	fin := make(chan bool)
	comm := make(chan string)
	go func() {
		for i := 0; i < b.N; i++ {
			comm <- "testing foobars until this string gets extremely long and ends up in a crash with undesired consequences nobody could ever escape unless they took careful measures"
		}
		fin <- true
	}()
	go func() {
		for i := 0; i < b.N; i++ {
			<-comm
		}
		fin <- true
	}()
	<-fin
	<-fin
}

type DataPart struct {
	name, value string
	count       int
}

type ComplexData struct {
	i, j, k int
	s, t    string
	part    DataPart
}

func BenchmarkComplex(b *testing.B) {
	fin := make(chan bool)
	comm := make(chan ComplexData)
	test := ComplexData{i: 123789, j: 456032, k: 987562, s: "testing foobards", t: "testing foobars until this string gets extremely long and ends up in a crash with undesired consequences nobody could ever escape unless they took careful measures", part: DataPart{name: "John", value: "A lot of", count: 1337}}
	go func() {
		for i := 0; i < b.N; i++ {
			comm <- test
		}
		fin <- true
	}()
	go func() {
		for i := 0; i < b.N; i++ {
			<-comm
		}
		fin <- true
	}()
	<-fin
	<-fin
}