Re: [CentOS] Upgrade 4.7 > 5.3 poorer 'performance'

Matty wrote:

On Thu, Jul 2, 2009 at 4:57 AM, Tom Browntom@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?

Please also give, the options how the JVM is started (I'm thinking of changed standard behavior).

• Ryan

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Regards, Patrick