Clue: If a related service provider (i.e. OT, PT) is the only one delivering specially designed instruction â it belongs in the top specially designed instruction box, not related service. Clue: Be specific about the service delivered like Specially Designed Instruction (SDI) above.
In Java, the default and maximum heap size are allocated based on this â ergonomics algorithm. Heap sizes. Initial heap size of 1/64 of physical memory up to 1Gbyte. Maximum heap size of 1/4 of physical memory up to 1Gbyte.
To make things more complex, Java memory is separated into two different regions. These regions are called Heap space and Permgen (for Permanent Generation): The size of those regions is set during the Java Virtual Machine (JVM) launch and can be customized by specifying JVM parameters -Xmx and -XX:MaxPermSize. If you do not explicitly set the sizes, platform-specific defaults will be used.