A simple goroutine pool

Rational

Goroutine is cheap, but not free. Especially when the goroutine trigger runtime.morestack, the cost become high.

This package is mainly aimed to handle that. Put back the stack-growed goroutine to a pool, and reuse that goroutine can eliminate the runtime.morestack cost.

See a blog post (Chinese) https://www.zenlife.tk/goroutine-pool.md

Usage

Just replace your go f() call with gp.Go(f):

import "github.com/tiancaiamao/gp"

var gP = gp.New(N, time.Duration)

gp.Go(func() {
	// ...
})