× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



Michael,

When we upgraded from a 6xx to the 720 two yrs ago we went from a system that 
was constant 90+% cpu used to 15% used. The common expression heard around the 
office ... "wow".

But even on the older systems, my experience at tuning was that the system was 
going to do what it thought was best and the best the humans could do was to 
limit the nbr of batch jobs that were running at one time.

Steve


---------- Original Message ----------------------------------
From: Michael Oakes <Michael.Oakes@eb.uk.com>
Reply-To: midrange-l@midrange.com
Date: Thu, 30 Aug 2001 01:30:27 +0100

>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?
>>
>>
>>
>>_______________________________________________
>>This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
>>To post a message email: MIDRANGE-L@midrange.com
>>To subscribe, unsubscribe, or change list options,
>>visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
>>or email: MIDRANGE-L-request@midrange.com
>>
>>
>_______________________________________________
>This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
>To post a message email: MIDRANGE-L@midrange.com
>To subscribe, unsubscribe, or change list options,
>visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
>or email: MIDRANGE-L-request@midrange.com
>******************************************************************
>
>This email and any files transmitted with it are confidential
>and intended solely for the use of the individual or entity
>to whom they are addressed. If you have received this email in
>error please notify the system manager at:
>
>                   mailto:postmaster@eb.uk.com
>
>The recipient acknowledges that transmissions made via the Internet
>can be corrupted and therefore EB Plc and any of its subsidiaries
>do not give any warranty as to the quality or accuracy of any
>information contained in the message or assume any liability for
>it or for its transmission, reception or storage.
>
>This footnote also confirms that this email message has been swept
>by Anti-Virus software for the presence of computer viruses.
>
>http://www.eb.uk.com
>http://www.game.uk.com
>
>******************************************************************
>_______________________________________________
>This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
>To post a message email: MIDRANGE-L@midrange.com
>To subscribe, unsubscribe, or change list options,
>visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
>or email: MIDRANGE-L-request@midrange.com
>
>


As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.