>The monitor is looking at things even on an idle system, so in a sandbox that >is just sitting idle most of the time, the monitor takes more CPU than JES2 itself does.
It's called the 'low utilisation effect'. A lot of z/OS (and friends) are polling for work to do. Take a look when/if you're over 90 (or 95)%, and if JES2MON is still eating a lot, then you have a problem. High task CPU at low processor is rarely a problem. - Too busy driving to stop for gas! ---------------------------------------------------------------------- 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