Re: Re: [PATCH] x86: Accelerate copy_page with non-temporal in X86

From: Borislav Petkov
Date: Tue Apr 13 2021 - 10:53:38 EST


On Tue, Apr 13, 2021 at 08:54:55PM +0800, Kemeng Shi wrote:
> Yes. And NT stores should be better for copy_page especially copying a lot
> of pages as only partial memory of copied page will be access recently.

I thought "should be better" too last time when I measured rep; movs vs
NT stores but actual measurements showed no real difference.

--
Regards/Gruss,
Boris.

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