[lkml]   [2004]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U4

    * Adam Heath <> wrote:

    > > i have released the -U4 PREEMPT_REALTIME patch:
    > >
    > >
    > >
    > > this is a fixes-only release, and it is still experimental code.
    > Few stack dumps now.

    these are normal, they are the PREEMPT_TIMING traces which get printed
    every time the kernel measures a new latency maximum. The stack dumps
    are done to make it easier to identify which place too that long of a
    delay and why. (if LATENCY_TRACE is enabled too then the last latency
    and its trace can also be found in /proc/latency_trace.)

    after bootup it makes sense to reset the maximum:

    echo 10 > /proc/sys/kernel/preempt_max_latency

    because during bootup there are a number of latencies that are one-time

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

     \ /
      Last update: 2005-03-22 14:07    [W:3.626 / U:0.240 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site