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    SubjectRe: Linux 2.6.0-test6


    Pedro Larroy wrote:

    >On Thu, Oct 02, 2003 at 01:05:36PM +1000, Nick Piggin wrote:
    >
    >>
    >>Pedro Larroy wrote:
    >>
    >>>Why not run xmms with SCHED_RR or SCHED_FIFO?
    >>>
    >>>
    >>>
    >>Well because playing an mp3 really is a pitiful task for modern CPUs,
    >>and the standard scheduler should handle this fine. Also a music skip
    >>isn't terribly important.
    >>
    >>Realtime applications are difficult to make robust and they can easily
    >>hang the system.
    >>
    >>
    >
    >I think there are better aproaches for deciding when a task should be
    >interactive than the current one based in how much does the task sleep.
    >
    >I'm afraid this selection criteria leads to a scheduler that isn't
    >predictable for situations that aren't the ones for which is tuned to work.
    >Of course I may be wrong, but to me, seems that saying explicitly
    >which tasks are interactive sounds better.
    >

    Have a look at my scheduler if you like. It won't estimate interactivity
    but it works quite well if you nice -10 your X server. Ie. explicitly
    state which process should be favoured.
    http://www.kerneltrap.org/~npiggin/v15a/

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