Re: Submissions for 2.4.19-pre [x86 Syscall Optimizations
Robert Love (rml@tech9.net)
25 Feb 2002 22:19:17 -0500
On Mon, 2002-02-25 at 21:32, Michael Cohen wrote:
>
> Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>
> > Credit for the originator and an explanation would be helpful
>
> See Subject ^^ Alexander Khripin. Looks to me like it improves latency
> quite a bit during syscalls. I'm unable to find the exact mail but I
> believe I was referred to this particular patch by someone on lkml.
Eh? The patch doesn't do anything but move movl ops around. I suspect
the intention may to eliminate datapath stalls, which may be a fine
micro-optimization, but I think we need some numbers first ...
Robert Love
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