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SubjectRe: MMX performance....

On 6 Feb 1997, Robert Krawitz wrote:

> The Pentium memcpy() patch, BTW, has a lot of overhead of its own; it
> dumps and restores the FPU state (when it's in use it dumps the
> registers; when not, it dumps just the rest of the state). That's why
> it's configured to operate only when the amount of data to be copied
> is large. The overhead is well worth it, though, since memory
> bandwidth on write is used so much more efficiently.

Is the Pentium memcpy patch in 2.1.x yet? If not, why not? Such a low
level change should go into the development kernels as early as possible,

Actually it's about time I started using development kernels on my
personal box. I like to always run with the memcpy patch though. Is there
at least a 2.1.x patch for it?


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