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  2. MIDRANGE-L
  3. August 2001

Re: Timeslices

turning off the dynamic scheduler, makes everything much more even.
Now there is no difference. All jobs proceed at the same rate.

----- Original Message -----
From: Alexei Pytel <pytel@us.ibm.com>
To: <midrange-l@midrange.com>
Sent: Wednesday, August 29, 2001 10:25 PM
Subject: Re: Timeslices


>
> It might happen because of dynamic priority scheduler.
> Before going into lengthy explanations of my theory which might be wrong -
> could you set system value QDYNPTYSCD to 0 (off) and repeat you run.
> If effect you see will disappear, I might be able to explain it.
>
>     Alexei Pytel
>                     "Leif Svalgaard"
>
> I have noticed that (interactive) jobs with a small timeslice
> are more "reactive" than jobs with a large timeslice.
> This seems to indicate that the OS/400 is not "truly"
> preemptive. Is this observation correct, or am I missing
> something, or should I even know?

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