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SubjectRe: [PATCH] x86/asm/entry/64: pack interrupt dispatch table tighter
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On Fri, Apr 3, 2015 at 11:35 AM, H. Peter Anvin <hpa@zytor.com> wrote:
>
> For the record, I actually measured the impact of the jump-to-jump when
> I wrote it. It has a small, *but measurable*, positive impact.

What did you compare against, and how did you measure that? I don't
see how it could *possibly* be faster than just a simple aligned "push
+ jmp".

Linus


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