"v8 vs process startup benchmark"

gist title

benchmark results

$ go build main.go
$ go test -bench .
goos: darwin
goarch: amd64
pkg: tmp/v8go/spawnv8bench
cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
BenchmarkNewIsolate-12    	     574	   2011384 ns/op
BenchmarkSpawn-12         	     241	   4901969 ns/op

main.go

package main

func main() {
}

main_test.go

package main_test

import (
	"testing"
	"os/exec"
	"rogchap.com/v8go"
)

func BenchmarkNewIsolate(b *testing.B) {
	for bIdx := 0; bIdx < b.N; bIdx++ {
		iso, err := v8go.NewIsolate()
		if err != nil { panic(err) }

		iso.Dispose()
	}
}

func BenchmarkSpawn(b *testing.B) {
	for i := 0; i < b.N; i++ {
		cmd := exec.Command("./main")
		err := cmd.Run()
		if err != nil {
			panic(err)
		}
	}
}