High CPU Usage on servers with many cores

Document ID : KB000077229
Last Modified Date : 17/04/2018
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Issue:
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.