On Thu, Jul 2, 2009 at 4:57 AM, Tom Brown<tom at ng23.net> wrote: > Hi > > During a test upgrade of a number of hosts in a pool i have found that > exactly the same JVM based app runs more efficiently on the 4.7 systems > than it does on the 5.3 on identical hardware. > > Specifically the apps seems to exhibit about 10% more 'load' on the > CPU's for the same workload - before i start digging deep has anyone > seen anything similar ? Which JDK version, and how are you measuring load? - Ryan -- http://prefetch.net