[Interest] how to run 21 threads concurrently

[Jan Kundrát]

On 10/05/12 00:27, Sascha Cunz wrote:
> But, after all, the above code is a so called busy-loop. It will eat up 1 core
> almost completely (At least on most OS-configurations).

Are you sure that a call to QFuture::waitForFinished() consumes CPU? 
That would be highly suspicious. Yes, the call will block and wait until 
the QFuture succeeds, but that's different from what a busy loop is.

Using waitForFinished() on each future is easier and more 
straightforward than adding semaphores.

With kind regards,
Jan

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