lkml.org 
[lkml]   [2004]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [patch] voluntary-preempt-2.6.8.1-P4

    * Lee Revell <rlrevell@joe-job.com> wrote:

    > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P4
    >
    > I think I am seeing those weird ~1 ms latencies still (actually I am not
    > sure I saw before now):
    >
    > http://krustophenia.net/testresults.php?dataset=2.6.8.1-P4#/var/www/2.6.8.1-P4/kswapd_latency_trace.txt

    this is a 9 msec latency in fact. I know what's going on - it's the
    get_swap_page() locking - i looked at it once already but there's no
    immediate silver arrow. As we allocate more and more swap entries the
    longer the scan gets.

    Ingo
    -
    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 14:05    [W:0.023 / U:0.036 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site