This topic applies only on the z/OS operating system.

Java virtual machine storage tuning tips for the z/OS platform

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. . Then, under Server Infrastructure, click Process Definition > Control > Java Virtual Machine. Access the configuration tab to change these settings.




Related tasks
Tuning the application serving environment
Tuning storage
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Last updated: Aug 29, 2010 9:31:45 PM CDT
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