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    SubjectRe: 2.4.10-pre11: alsaplayer skiping during kernel build (-pre10 did not)
    On Tue, Sep 18, 2001 at 05:25:00PM +0200, Andrea Arcangeli wrote:
    > On Tue, Sep 18, 2001 at 05:14:16PM +0200, jogi@planetzork.ping.de wrote:
    > > Hello Andrea,
    > >
    > > I gave your new vm a try and I have to report a problem. System is an
    > > Athlon 1200 with 256MB memory. Workload:
    > >
    > > 1. top refreshing every second reniced to -10
    > > 2. alsaplayer -n -q -r *.wav
    > > 3. make -j4 bzImage modules
    > >
    > > The problem is that with 2.4.10-pre11 alsaplayer is skiping very much.
    > > Almost every ten seconds and then the break seems to be relatevily long
    > > (like >1s). With 2.4.10-pre10 I noticed alsaplayer skiping once or twice
    >
    > the skips shouldn't really be realated to vm changes, if something to
    > the schedrt fix. but the real issue is that you should avoid to run top
    > at -10 (or you meant +10?). Running top at -10 isn't a good idea, it is
    > allowing it to get more cpu than the other tasks for no good reason.

    Ok, I just wanted to see the current load all the time :-) Btw. I don't
    think that just one top running should cause alsaplayer (which runs
    with real-time properties:

    -r, --realtime
    Enable realtime scheduling. To use this as a nor­
    mal user, alsaplayer must be SUID root.

    As I wrote in a seperate mail alsaplayer skips during other activities
    also, like starting mutt, mozilla, whatever ... And these are not
    started reniced.

    Since I am not using md there are not that much changes left between
    -pre10 and -pre11. Or do you think that it is caused by the console
    locking changes?


    Regards,

    Jogi


    --

    Well, yeah ... I suppose there's no point in getting greedy, is there?

    << Calvin & Hobbes >>
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