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    SubjectRe: Intel P6 vs P7 system call performance
    On Mon, Dec 09, 2002 at 05:48:45PM +0000, Linus Torvalds wrote:

    > P4's really suck at system calls. A 2.8GHz P4 does a simple system call
    > a lot _slower_ than a 500MHz PIII.
    > The P4 has problems with some other things too, but the "int + iret"
    > instruction combination is absolutely the worst I've seen. A 1.2GHz
    > Athlon will be 5-10 times faster than the fastest P4 on system call
    > overhead.

    Time to look into an alternative like SYSCALL perhaps ?


    | Dave Jones.
    | SuSE Labs
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