From: Matt Mackall <mpm@selenic.com>
Subject: Re: [PATCH] Export symbol ksize()
Date: Sun, 15 Feb 2009 19:54:39 -0600
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Cc: Andrew Morton <akpm@linux-foundation.org>,
        Pekka Enberg <penberg@cs.helsinki.fi>,
        "Kirill A. Shutemov" <kirill@shutemov.name>,
        Christoph Lameter <cl@linux-foundation.org>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        linux-crypto@vger.kernel.org, Geert.Uytterhoeven@sonycom.com
To: Herbert Xu <herbert@gondor.apana.org.au>
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On Mon, 2009-02-16 at 09:52 +0800, Herbert Xu wrote:
> On Sun, Feb 15, 2009 at 07:28:46PM -0600, Matt Mackall wrote:
> >
> > Yeah. That sucks. We should probably stick in an skb-friendly slab size
> > and see what happens on network benchmarks.
> 
> I don't see how that's going to help since we don't want it to
> cross page boundaries either (having just wasted a day tracking
> down a virtual networking bug because of slab debugging and
> crossing page boundaries).

I'll bite.. what's wrong with page boundaries? Do we play per-SKB TLB
games in virtual network drivers?

-- 
http://selenic.com : development and support for Mercurial and Linux


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