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    SubjectRe: [PATCH] VM fix for 2.4.0-test9 & OOM handler
    On Mon, 9 Oct 2000, Marco Colombo wrote:
    > On Fri, 6 Oct 2000, Rik van Riel wrote:
    >
    > [...]
    > > They are niced because the user thinks them a bit less
    > > important.
    >
    > Please don't, this assumption is quite wrong. I use nice just to
    > be 'nice' to other users. I can run my *important* CPU hog
    > simulation nice +10 in order to let other people get more CPU
    > when the need it.

    In that case the time the process has been running and the
    CPU time used will save the process if it's been running for
    a long time.

    Please read the /entire/ algorithm before making rash
    conclusions like this.

    If nice is used for important, long-running tasks, the fact
    that they are long-running will save them (and be honest,
    would you really care if a simulation would be killed after
    5 minutes? it's only inconvenient if it gets killed after
    a few hours...)

    > But if you put the logic "niced == not important" somewhere into
    > the kernel, nobody will use nice anymore. I'd rather give a
    > bonus to niced processes.

    This doesn't make ANY sense at all. The objective is to destroy
    the least amount of work, which means giving a bonus to processes
    which have used a lot of CPU time already ... regardless of nice
    value.

    > all. But my point here is that you do, and you take it as an hint for
    > process importance as percieved by the user that run it, and I believe
    > it's just wrong guessing).

    If you have a better algorithm, feel free to send patches.

    regards,

    Rik
    --
    "What you're running that piece of shit Gnome?!?!"
    -- Miguel de Icaza, UKUUG 2000

    http://www.conectiva.com/ http://www.surriel.com/

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