Colin, can you say what the workload is? z/TPF guests, VPARS, Linux, CMS? ________________________________
From: The IBM z/VM Operating System on behalf of Colin Allinson Sent: Wed 10/6/2010 7:27 AM To: [email protected] Subject: Re: Strange performance problem Barton Robinson <[email protected]> wrote: > Colin, a really good performance monitor that kept full history data > would have been of great assistance. Barton, As you know, we do have a good performance monitor. It is just that, unfortunately for you, it is not the one that you provide. Don't flame me for that one - it was a commercial rather than technical decision and I had no input into that. The fact remains that I can search the performance monitor we do have for information - if I have some clue what I am looking for. The system is peaking high supervisor state activity on processor 0 (we can also see this on the SAD display) for significant periods of time. I have exhausted all the likely causes that I know and I am now looking for new ideas on what to look for. Colin Allinson VM Systems Support Amadeus Data Processing GmbH IMPORTANT - CONFIDENTIALITY NOTICE - This e-mail is intended only for the use of the individual or entity shown above as addressees. It may contain information which is privileged, confidential or otherwise protected from disclosure under applicable laws. If the reader of this transmission is not the intended recipient, you are hereby notified that any dissemination, printing, distribution, copying, disclosure or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this transmission in error, please immediately notify us by reply e-mail or using the address below and delete the message and any attachments from your system. Amadeus Data Processing GmbH Geschäftsführer: Eberhard Haag Sitz der Gesellschaft: Erding HR München 48 199 Berghamer Strasse 6 85435 Erding Germany
