I recall that the UTS developers at Amdahl noticed something similar. I think that VM gives hot machines higher priority. If I recall correctly they made the VM aware version of UTS run hot just to improve response times.
-----Original Message----- From: Joe Poole [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 13, 2003 1:56 PM To: [EMAIL PROTECTED] Subject: Re: URGENT! really low performance. On Thursday 13 February 2003 16:09, Alex wrote: -the hmc indicates that the ifl is at 99% utilization. Our HMC on the z900 always shows 99% for the IFL, even if it's not doing anything substantial. Running a CPU hot all the time was an old performance enhancing trick I remember from the 4381 days. I can't recall why, though. The RTM numbers give a better reading.
