linux-kernel - Re: [rfc][patch 1/3] slub: fix small HWCACHE

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Date:	Mon, 3 Mar 2008 13:16:44 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Nick Piggin <npiggin@...e.de>
cc:	netdev@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	yanmin_zhang@...ux.intel.com, David Miller <davem@...emloft.net>,
	Eric Dumazet <dada1@...mosbay.com>
Subject: Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment

On Mon, 3 Mar 2008, Nick Piggin wrote:

> > HWCACHE_ALIGN means that you want the object to be aligned at 
> > cacheline boundaries for optimization. Why does crossing cacheline 
> > boundaries matter in this case?
> 
> No, HWCACHE_ALIGN means that you want the object not to cross cacheline
> boundaries for at least cache_line_size() bytes. You invented new

Interesting new definition....


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