Re: [PATCH RFC] x86:Improve memset with general 64bit instruction

[Andi Kleen]

ling.ma.program@xxxxxxxxx writes:

> From: Ling Ma <ling.ml@xxxxxxxxxxxxxxx>
>
> In this patch we manage to reduce miss branch prediction by 
> avoiding using branch instructions and force destination to be aligned
> with general 64bit instruction. 
> Below compared results shows we improve performance up to 1.8x
> (We modified test suit from Ondra, send after this patch)

You didn't specify the CPU?

I assume it's some Atom, as nothing else uses these open coded functions
anymore?

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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