IBM Tivoli Composite Application Manager for Application Diagnostics, Version 7.1.0.1

Out of Memory errors occur when using L3 and hotspot JVM

The problem: If out of memory errors occur while you are using L3 and hotspot JVM, do the following instructions.

The cause: The default NewSize and MaxNewSize might be too small for some Applications if the Application is allocating large numbers of short living objects.

The solution: Some recommended tuning for an application that allocates many short living objects is as the following content:

-XX:+DisableExplicitGC -XX:NewSize=128m -XX:MaxNewSize=256m -Xconcurrentio

NewSize and MaxNewSize must be changed based on the Maximum and Minimum heap settings of the JVM.


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