Re: [PATCH] General purpose zeroed page slab

From: Matthew Wilcox <>
Date: 2004-10-15 05:47:47
On Thu, Oct 14, 2004 at 10:08:49PM +0300, Denis Vlasenko wrote:
> BTW, zeroing with non-temporal stores may be a huge win here.
> It is 300% faster on Athlon.

That assumes the page isn't going to be reused quickly.  The point of
slab is that the page does get reused quickly.  So you *want* the data
to be hot in cache.

"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Received on Thu Oct 14 15:59:56 2004

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