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    SubjectRe: CONFIG_PREEMPT and server workloads
    On Wed, Mar 24, 2004 at 02:57:20PM +0100, Takashi Iwai wrote:
    > At Sat, 20 Mar 2004 16:03:11 +0100,
    > Andrea Arcangeli wrote:
    > >
    > > On Sat, Mar 20, 2004 at 06:51:11AM -0800, William Lee Irwin III wrote:
    > > > I may have missed one of his posts where he gave the results from the
    > > > RT test suite. I found a list of functions with some kind of numbers,
    > > > though I didn't see a description of what those numbers were and was
    > > > looking for something more detailed (e.g. the output of the RT
    > > > instrumentation things he had with and without preempt). This is all
    > > > mostly curiosity and sort of hoping this gets carried out vaguely
    > > > scientifically anyway, so I'm not really arguing one way or the other.
    > >
    > > agreed. what I've seen so far is a great number of graphs, they were
    > > scientific enough for my needs and covering real life different
    > > workloads, but I'm not sure what Takashi published exactly, you may want
    > > to discuss it with him.
    >
    > sorry, there is no exact descrption (yet) in public, except for the
    > pdf of slides i presented ago:
    >
    > http://www.alsa-project.org/~iwai/audio-latency.pdf

    this is what I meant. To be fair I've also seen lots of raw input data,
    but you represented all the interesting points in the presentation.

    > it uses its own kernel module to generate irqs from RTC and to trace
    > stacks.
    >
    > i'll show the results of the recent kernels tomorrow...

    cool ;)
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