>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: 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 cpuplugd UPDATE interval that aren't there with cpuplugd disabled. Obviously running cpuplugd costs something and falls into the chapter of disabling unneeded services. This only makes sense when the processing saved in CP amounts to more than the cost of running cpuplugd. Best regards, Pieter Harder [email protected] tel +31-73-6837133 / +31-6-47272537 Brabant Water N.V. Postbus 1068 5200 BC 's-Hertogenbosch http://www.brabantwater.nl Handelsregister: 16005077 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
