CPU Utilization issue with Websphere 3.5.6

[Ravi Kakarla]

Hello,
Ours is a J2EE application running in Websphere 3.5.6 (In Unix). Of late, we have been facing a strange issue with our application - Whenever the application is started Very Very higher CPU Utlilization rates are observed (As high as 80%). The same code was working fine earlier. Any one knows what environmental changes could cause such issues!!
Upon running the OptimizeIT, we found that following call is taking the most(as much as 80%) of the CPU time -
com.ibm.servlet.engine.oselistener.outofproc.NativeServerQueueImp.getSeviceMessageId()
Please let me know if any of youhave faced this issue earlier!
Thanks
Ravi K Kakarla

[Vinod Bijlani]

when a server restarts up the adminserver consumes a lot of CPU its the same with all WAS 3.X although 80 is high but i have myself seen 55-60% of CPU time being used by adminserver...but after the server is started up does it continue to use a lot of CPU?? if thts the case then there is a problem