Re: Likelihood of rt_tasks

[Nick Piggin]

Ingo Molnar wrote:

> the unlikely() check in rt_task() was mainly done because there was a
> steady stream of microoptimizations that added unlikely() to rt_task().
> So now we do in everywhere and have removed the unlikely()/likely()
> branches from sched.c. It doesnt really matter in real-world terms, but
> it will make the common case code (non-RT) a tiny bit more compact. And
> i challenge anyone to be able to even measure the difference to an RT
> task.

Also, the scenario where it may possibly make a tiny positive
contribution (something *very* scheduler bound) would be using
non-RT tasks I'd say.
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