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SubjectRe: Fast Pentium memcpy stuff

I am using your memcpy.....

--Jauder

On Fri, 12 Apr 1996, Robert L Krawitz wrote:

> First off, would everyone who uses this please send me email? I'd
> like to set up a mailing list so I don't have to bother everyone on
> linux-kernel who's perfectly satisfied with slow memcpy performance.
>
> Secondly, I've started having problems with it (at least in the
> routine that copies from system to user space; the others seem fine).
> Specifically, make -j gets a lot of corruption (bogus source files) in
> some of the newer kernels that didn't happen even as recently as the
> low 1.3.8x's (I only got the usual sig11's that I also got without the
> fast copy). This is only an issue with the _tofs routine; if I
> disable that one and use the others (_fromfs, "regular" memcpy, and
> zero_chunk) everything's fine (although read performance from the
> filesystem drops a lot). I'd like someone else to do this to see if
> this problem is reproducible or happens only on my system.
>
> --
> Robert Krawitz <rlk@tiac.net> http://www.tiac.net/users/rlk/
>
> Member of the League for Programming Freedom -- mail lpf@uunet.uu.net
> Tall Clubs International -- tci-request@aptinc.com or 1-800-521-2512
>
>


.sig under construction



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