Re: [PATCH 0/2 v4] sched: Rewrite per entity runnable load average tracking

[Mike Galbraith]

On Mon, 2014-07-28 at 03:34 +0800, Yuyang Du wrote: 
> Thanks a lot, Mike.
> 
> Ben asked for this test, but actually I don't know how to get pipe-test, still
> not even after google it.

You could write it trivially, it's just pipe ping-pong.  I can send you
a copy of the one I use if you like.  Ingo wrote it way back in the dark
ages, I use it to watch out for fastpath lard accumulation.
> So the result is flat compared to before or a pass?

Yeah, my little box said it was a deep cgroup price noop, but a modest
win for root.  I love minus signs, they work great, though sometimes in
highly mysterious ways :)

-Mike

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