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    SubjectRe: [PATCH] O16.2int
    On Mon, Aug 18, 2003 at 11:21:04AM +1000, Con Kolivas wrote:
    > Quoting Tom Sightler <ttsig@tuxyturvy.com>:
    >
    > > Hi Con,
    >
    > Hi Tom
    >
    > > 1. -- Wine running Windows Media Player 6.4 works great when running in
    >
    > Yes a well known problem now (see other threads about wine). Wine doing
    > something very cpu intensive exhibits this due to a combination of wine
    > breakage brought out by my scheduler tweaks causing priority inversion.
    >
    > > 2. -- Adobe Acrobat 5.07 for Linux seems to have a very similar issue, a
    > > large complex document seems to starve out the whole system making the
    > > system feel locked up for several seconds.
    >
    > Actually I've profiled acroread and it seems to be more a memory issue than a
    > scheduler one per se. Something very inefficient about it's design and it
    > behaves much worse as a mozilla plugin than standalone. Give it lots of cpu
    > time and it just keeps doing more and more vm work.

    Acrobat has a switch so that it keeps a cache of rendered pages, and
    obviously it default to ON, so just reading a big PDF file page by
    page will trash all the system with lots useless data. BUT, for simple
    PDF usage in a non-multitasking single-user machine it's faster
    so there you have a possible reason for it's strange behaviour.


    > > 3. -- It seems I can trigger the same kind of starvation by simply doing
    > > large selects in a Konsole window. Selecting a large section of text
    >
    > > Konsole issue, however, if another application is using a reasonable
    > > amount of CPU, say a video playing in Wine using ~50% CPU, then it seems
    > > easy to make this happen. Once it happens it's very hard to recover,
    >
    > This is because of wine, not the Konsole which behaves fine, but tips the
    > combination of wine and something else over the edge.
    >
    > I'm working on it. Thanks very much for your report.
    >
    > Cheers,
    > Con
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    --
    winden/network

    1. Dado un programa, siempre tiene al menos un fallo.
    2. Dadas varias lineas de codigo, siempre se pueden acortar a menos lineas.
    3. Por induccion, todos los programas se pueden
    reducir a una linea que no funciona.
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