"Tom Marchant" <[email protected]> wrote in message news:<[email protected]>... > On Tue, 1 May 2012 22:06:55 +0200, Vernooij, CP - SPLXM wrote: > > >In our case, production batch varies from seconds to hours > > That was my case too. It was several years ago that I was in a > shop where I had primary responsibility for performance, but what > I found there is that: > > During the day, most of the production jobs were shorter duration, > with the longest running jobs being run at night > > There was very little non-production work at night > > During the day, CICS was the most critical and there was a lot of > development batch and TSO work > > Even at night, about as many jobs were of short duration as long > duration jobs. At night, there was little competition for resources. > > For my shop I set a goal for production of 50% complete in 30 minutes.
> I did that after some analysis of the production jobs that run over a > period of time and found that about half of the production jobs run in > under 30 minutes. By using a percentile goal like this, WLM gave priority > to production over non-production. This works because WLM manages > the service class, not individual jobs. For example, when WLM changes > the dispatching priority of a service class, every job in the service class > is set to the same DP. Are you sure, under what circumstances? I don't see this in my SC's (be it with Velocity). Kees. ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ******************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
