lkml.org 
[lkml]   [2005]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] to fix xtime lock for in the RT kernel patch
    Ingo Molnar wrote:
    > * George Anzinger <george@mvista.com> wrote:
    >
    >
    >>What I am suggesting is spliting the mark code so that it would only
    >>grap the offset (current TSC in most systems) during interrupt
    >>processing. Applying this would be done later in the thread. Since
    >>it is not applying the offset, the xtime_lock would not need to be
    >>taken.
    >
    >
    > ok, you are right, and this would be fine with me. Wanna take a shot at
    > it? I've uploaded the -03 patch which is my most current tree. (with the
    > do_timer() moving done already.) I've reviewed the TSC offset codepath
    > again and i'm not sure where i got the 10 usecs from ... it's a pretty
    > cheap codepath that can be done in the direct interrupt just fine.
    >
    Tomorrow, uh, later today. Need some sleep now...
    --
    George Anzinger george@mvista.com
    High-res-timers: http://sourceforge.net/projects/high-res-timers/

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 14:09    [W:0.026 / U:180.092 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site