CA Application Performance Management Agent (APM / Wily / Introscope)INTROSCOPE
Issue/Introduction
After installing the Java Agent, CPU Usage spikes up 50% on servers with 100+ CPUs.
Environment
Server with 100+ CPUs
Cause
The high CPU was related to enabling platform monitoring and its gathering of aggregated CPU utilizations - particularly if multiple agents are trying to access the information simultaneously.
Resolution
Set the following agent parameter in the agent profile: introscope.agent.disableAggregateCPUUtilization=true
If there are multiple agents on a server, all but one should be set to this to prevent CPU contention.