[lkml]   [1999]   [Dec]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch] fastcall-2.3.32-B6, SYSENTER/SYSEXIT support

    On Sun, 12 Dec 1999, Pavel Machek wrote:
    > >
    > > Who cares how fast you can do "getpid()"? NOBODY. It's meaningless.
    > Well, read from cached file is _not_ meaningless, still Ingo seen
    > improvements on that.

    Not really.

    You see improvements on the order of a percent or two IFF:
    - you do small reads
    - in a tight loop

    Ergo, that benchmark was really not worth it either.

    > I think you should concentrate on read(), write() and select()
    > syscalls. Those are the ones done often.

    I mostly agree, although gettimeofday() under X is actually _the_ most
    common one. But gettimeofday() is special anyway, simply because it
    doesn't actually need to do a kernel entry, so the three you mention are
    certainly "basic".


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:55    [W:0.020 / U:241.652 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site