Architecture › Memory Requirements

Memory Requirements

The move to a 64-bit Java Runtime brings with it the following memory setting recommendations for the CA Clarity PPM application service:

• Heap Space: 2048 megabytes (-Xmx2048m)
• Permanent Generation (Sun JVMs only): 192 megabytes (-XX:MaxPermSize=192m)

The memory settings are checked each time an application service is deployed. If the settings are below the recommended values, they are adjusted automatically. You can override the automatic adjustment by adding the following property to the JVM parameters for a given service: -DforceMemorySettings.

Each environment has unique resource requirements, so the default settings might not be correct in every case. Refer to the Administration Guide for more information on this topic.

Upgrade Action: None. The memory settings are adjusted automatically if they are below the recommended values.