stats.go

type Stats struct {
	prev runtime.MemStats
}

func (p *Stats) stats() {
	ms := runtime.MemStats{}
	runtime.ReadMemStats(&ms)
	mallocCount := ms.Mallocs - p.prev.Mallocs
	fmt.Println("malloc change is", mallocCount)
	p.prev = ms
}

func (p *Stats) Loop(ctx context.Context) {
	runtime.ReadMemStats(&p.prev)
	for {
		select {
		case <-time.After(time.Millisecond * 100):
			p.stats()
		case <-ctx.Done():
			return
		}
	}
}