Hello, nice thread - but the heading isn't quite right. These processes play by WLM rules: pop up all by the same time,use little cpu and go to sleep again. RMF will show bursts of activity and "long" periods with low activity. I've seen this with batch jobs having common i/o patterns and low cpu activity. An overall low cpu activity with spikes of cpu activity and permanently queued processes due to much smaller number of cpus then processes. If such a cycle has established itself (due to various clocks e.g. lpar, schedulers etc.) it's hard to break. These cycles lived for hours. With batch jobs this can be handled by using irregular patterns for scheduling with timer driven applications this is difficult but I would suggest to try other values for the timer. It's a problem of a self-organizing system.
I think there is some work requiered to ge an idea on how to break such cycles. Kind regards, Horst Schivelbein T-Systems Enterprise Services GmbH Computing Services & Solutions(CSS) Horst Schivelbein OSCO-BP Fasanenweg 9,D- 70711 Leinfelden-Echterdingen +49 711972- 44663 (Phone) +49 711972- 95965 (Fax) +49 171 76 15791 (Mobile) E-mail: [EMAIL PROTECTED] Internet: <http://www.t-systems.com/> mailbox: [EMAIL PROTECTED] T-Systems Enterprise Services GmbH Aufsichtsrat: René Obermann (Vorsitzender) Executive Committee: Helmut Binder, Albert Henn, Olaf Heyden*, Katrin Horstmann, Ulrich Kemp, Wilfried Peters*, Dr. Herbert Schaaff*, Zvezdana Seeger* Handelsregister: Amtsgericht Frankfurt am Main HRB 55933 Sitz der Gesellschaft: Frankfurt am Main WEEE-Reg.-Nr. DE87523644 *Geschäftsführer gem. § 35 GmbHG Notice: This transmittal and/or attachments may be privileged or confidential. If you are not the intended recipient, you are hereby notified that you have received this transmittal in error; any review, dissemination, or copying is strictly prohibited. If you received this transmittal in error, please notify us immediately by reply and immediately delete this message and all its attachments. Thank you. T-Systems - Business flexibility ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
