What does Xms represent in SailPoint IdentityIQ?

Xms in SailPoint IdentityIQ represents the minimum heap size allocated to the Java Virtual Machine (JVM). When the application starts, the JVM sets aside this amount of memory to ensure that sufficient resources are available to handle its operations right from the beginning. Setting a minimum heap size helps prevent the application from constantly resizing the heap during execution, which can improve performance and reduce garbage collection overhead.

This parameter is crucial for applications that require a certain amount of memory to function optimally, particularly in environments with high demand or large data processing needs, such as SailPoint IdentityIQ, which deals with identity management and governance tasks.

The setting does not refer to the maximum heap size, perm size, or default heap size. The maximum heap size specifies the upper limit of memory the JVM can use, the perm size refers specifically to the memory allocated for class metadata, and default heap size is not a specified JVM parameter but more of a behavior based on system configurations.