[Version 5.0.1 and later]Java virtual machine storage tuning tips for z/OS

Specifying a sufficient JVM Heap Size is important to Java performance. The JVM has thresholds it uses to manage the JVM's storage. When the thresholds are reached, the garbage collector (GC) gets invoked to free up unused storage. GC can cause significant degradation of Java performance.

Use the administrative console to specify the Initial Heap Size and the Maximum Heap Size for the JVM.

To view this administrative console page, click Servers > Application Servers > server_name > Process Definition > Java Virtual Machine. Access the configuration tab to change these settings.




Searchable topic ID:   rprf_tunezjvmstorage
Last updated: Jun 21, 2007 9:56:50 PM CDT    WebSphere Application Server for z/OS, Version 5.0.2
http://publib.boulder.ibm.com/infocenter/wasinfo/index.jsp?topic=/com.ibm.websphere.zseries.doc/info/zseries/ae/rprf_tunezjvmstorage.html

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