Messages in this thread | | | Date | Mon, 12 May 2014 17:28:18 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] sched: Distinguish sched_wakeup event when wake up a task which did schedule out or not. |
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On Mon, May 12, 2014 at 11:17:48AM -0400, Steven Rostedt wrote: > On Mon, 12 May 2014 17:09:50 +0200 > Peter Zijlstra <peterz@infradead.org> 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?
Dunno, nobody tried and reported. I suppose its sitting there along with the coherent changelog. [unhandled content-type:application/pgp-signature] | |