Re: [PATCH] sched: Distinguish sched_wakeup event when wake up a task which did schedule out or not.

[Steven Rostedt]

On Mon, 12 May 2014 17:09:50 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> > Point being, this is useful information, why not pass it to userspace?
> 
> Because it adds code to one of the hottest code paths in the kernel and
> so far nobody had a sane explanation of WTF they were doing.
> 

Is there a measurable difference with these extra tracepoints?

-- Steve

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