RE: Timeslices

[Michael Oakes <Michael.Oakes@xxxxxxxxx>]

It also depends on the amount of work the system is doing. If it is heavily
utilised the timeslice and run priority count very much. I would consider
myself lucky that I had the same run times for jobs!

-----Original Message-----
From: srichter [mailto:srichter@mail.autocoder.com]
Sent: 30 August 2001 01:24
To: midrange-l@midrange.com
Subject: Re: Timeslices


Hey Leif,

I dont think timeslice matters any more.

I work on a very fast 720 that uses the default qinter timeslice of 2000.
2000 milliseconds back in the s38 days meant something.  Now, you can
probably run many batch jobs with 2 seconds of cpu time.

I am thinking of saying that activity level matters more than timeslice,
that it might be too low and jobs that want to run have to wait to get into
the activity level. But jobs run so much faster now, that they leave enter
and leave the activity level so fast that the actual activity level never
gets very high and jobs are never waiting to get into it.

Steve Richter


---------- Original Message ----------------------------------
From: "Leif Svalgaard" <leif@leif.org>
Reply-To: midrange-l@midrange.com
Date: Wed, 29 Aug 2001 17:28:23 -0500

>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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