Golang, Performance, Programming.
Each task should be larger: let’s create a task per column. func createColWorkers(width, height int) image.Image { m := image.NewGray(image.Rect(0, 0, width, height)) c := make(chan int) var w sync.WaitGroup for n := 0; n < numWorkers; n++ { w.Add(1) go func() { for i := range c { for j := 0; j <