linux-kernel - Re: [PATCH v2 10/12] Maintain preemptability count even for !CONFIG

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Message-ID: <alpine.DEB.2.00.0911301021490.14098@router.home>
Date:	Mon, 30 Nov 2009 10:23:37 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	Gleb Natapov <gleb@...hat.com>, kvm@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, avi@...hat.com,
	mingo@...e.hu, tglx@...utronix.de, hpa@...or.com, riel@...hat.com
Subject: Re: [PATCH v2 10/12] Maintain preemptability count even for
 !CONFIG_PREEMPT kernels

Ok so there is some variance in tests as usual due to cacheline placement.
But it seems that overall we are looking at a 1-2% regression.

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