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    SubjectRe: CONFIG_PREEMPT and server workloads
    At Thu, 18 Mar 2004 11:18:07 -0800,
    Andrew Morton wrote:
    >
    > Takashi Iwai <tiwai@suse.de> wrote:
    > >
    > > oh, sorry, maybe i forgot to tell you that it has been already there
    > > :)
    > >
    > > # echo 1 > /proc/asound/card0/pcm0p/xrun_debug
    > >
    > > this will show the stacktrace when a buffer overrun/underrun is
    > > detected in the irq handler. it's not perfect, though.
    >
    > heh, you just shrunk my todo list by 0.01%.
    >
    > Have you had any useful reports from this feature?

    not much yet. i should write this feature in documentation now :)

    also, the total buffer underrun/overrun problem doesn't happen *so*
    often (except for the heavy i/o load, etc).


    Takashi
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