linux-kernel - Re: [patch 05/26] Slab allocators: Cleanup zeroing allocations

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Message-ID: <Pine.LNX.4.64.0706191532170.7633@schroedinger.engr.sgi.com>
Date:	Tue, 19 Jun 2007 15:33:08 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Matt Mackall <mpm@...enic.com>
cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Pekka Enberg <penberg@...helsinki.fi>,
	suresh.b.siddha@...el.com
Subject: Re: [patch 05/26] Slab allocators: Cleanup zeroing allocations

On Tue, 19 Jun 2007, Matt Mackall wrote:

> I worry a bit about adding another branch checking __GFP_ZERO in such
> a hot path for SLAB/SLUB.

Its checking the gfpflags variable on the stack. In a recently touched 
cachline.


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