parallel

[anonymous via Digitalmars-d-learn]

On 05.11.2015 21:43, Handyman wrote:
> foreach (i; 0..50)
>     Thread.sleep(20.msecs);
>
> But then my program still says: '2 secs'.   Please enlighten me.

Let's look at the line that does the `parallel` call:

     foreach (dish; parallel(dishes, 1)) dish.prepare();

This means that `dishes` is processed in parallel. Multiple threads are 
started to execute `prepare()` on multiple elements of `dishes` at the 
same time.

Each of those `dish.prepare()` calls is done on only one thread, though. 
There is not attempt to split the `prepare` action up and run parts of 
it in parallel.