Re: [Lse-tech] Re: efficient copy_to_user and copy_from_user routines in

[Mala Anand]

Niels wrote..
>Indeed, I ordered a P4 for these tests while still at IBM but AMD boxes
are
>not available to Mala, I believe.  Before I got sacked, I even bought a P4
>to test this and other things at home but I lost interest in the matter so
>never actually got around to testing.

>When I did test back in February I created a few test programs and found
>that the code generated by GCC Version 3.x and the library that came with
>RedHat 6.2 gave almost as good results as the patches Mala then had
>available.  Maybe it is time to see if the compiler has improved enough to
>scrap the copy code in the kernel in favor of code as generated by the
>compiler.

I need to check this out.  I don't remember getting these results from you.
If you still have them, please mail me the results and the generated
code.

Regards,
    Mala

   Mala Anand
   E-mail:[e-mail]
   Linux Technology Center - Performance
   Phone:[phone]; Tie-line:678-8088