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Date: Sat, 8 Nov 2008 10:28:21 -0800 (PST)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>, Mike Galbraith <efault@gmx.de>
Subject: Re: [git pull] scheduler updates
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On Sat, 8 Nov 2008, Ingo Molnar wrote:
>
> Ingo Molnar (2):
>       sched: improve sched_clock() performance
>       sched: optimize sched_clock() a bit

Btw, why do we do that _idiotic_ rdtsc_barrier() AT ALL?

No sane user can possibly want it. If you do 'rdtsc', there's nothing you 
can do about a few cycles difference due to OoO _anyway_. Adding barriers 
is entirely meaningless - it's not going to make the return value mean 
anything else.

Can we please just remove that idiocy? Or can somebody give a _sane_ 
argument for it?

		Linus