Re: Cpuplugd-setting CPU_MIN to 1

2009-05-08 Thread Rob van der Heij
On Fri, May 8, 2009 at 1:25 PM, Harder, Pieter wrote: > And now for the really stupid question: does enabling cpuplugd with CPU_MIN=1 > actually gain something? I have turned it on for one of my SAP dyadics and my > idle level seems to have gone up instead of down. I now see cpu spikes at the

Re: Cpuplugd-setting CPU_MIN to 1

2009-05-08 Thread Harder, Pieter
>With Linux on z/VM I do like the idea that reduced >number of CPUs may improve chances of the virtual machine drop from >queue nicely. But recent SAP releases have stuff that makes even the >virtual 1-way stay in-queue, so there it does not help anymore. And now for the really stupid question: do

Re: Cpuplugd-setting CPU_MIN to 1

2009-05-08 Thread Rob van der Heij
On Mon, May 4, 2009 at 5:21 PM, Ron Foster at Baldor-IS wrote: > I have been using the supplied example that had the minimum number of > CPUs set to 2. I don't think there is a real reason for having the minimum at 2. Earlier this week I raised the question "why would you ever set the minimum hi

Cpuplugd-setting CPU_MIN to 1

2009-05-04 Thread Ron Foster at Baldor-IS
Hello Listers, We are a SAP shop. For some time now, I have been using cpuplugd to control the number of CPUs that our batch servers have. This seems to work fine. I have been using the supplied example that had the minimum number of CPUs set to 2. Now I am looking at our production SAP dialo