Re: [PATCH] General purpose zeroed page slab

Matthew Wilcox
2004-10-14T19:47:47Z

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