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    SubjectRe: Intel P6 vs P7 system call performance
    On Sat, Dec 28, 2002 at 10:37:06PM +0200, Ville Herva wrote:

    > Now that Linus has killed the dragon and everybody seems happy with the
    > shiny new SYSENTER code, let just add one more stupid question to this
    > thread: has anyone made benchmarks on SYSCALL/SYSENTER/INT80 on Athlon? Is
    > SYSCALL worth doing separately for Athlon (and perhaps Hammer/32-bit mode)?

    Yes, the output of the programm Linus posted is on a Duron 750 with
    2.5.53 like this:

    igor3:~# ./a.out
    187.894946 cycles (call 0xffffe000)
    299.155075 cycles (int 80)

    (cycles per getpid() call)


    Christian Leber

    --
    "Omnis enim res, quae dando non deficit, dum habetur et non datur,
    nondum habetur, quomodo habenda est." (Aurelius Augustinus)
    Translation: <http://gnuhh.org/work/fsf-europe/augustinus.html>
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