JVM options – HotSpot VM Standard Options

This is part #1 of a series of articles that will provide you a consolidated view of the Sun Java HotSpot VM arguments from the online Oracle documentation. It will also serve as a foundation & baseline for future Blog posts, case studies on Java HotSpot VM performance tuning and the upcoming JDK 1.7 so I suggest you bookmark this post URL for future useful references.
 

Server-Class Machine Detection (HotSpot JDK 1.5+)

Find below the Java HotSpot behaviour when using Server-Class Machine Detection mode (neither -server nor -client is specified). It is important to note that –server mode should normally be used when using a minimum of 2 processors and minimum of 2 GB of physical memory.

Platform		Default VM
Architecture	OS	client VM	if server-class, server VM; otherwise, client VM	server VM
SPARC 32-bit	Solaris		X
i586	Solaris		X
	Linux		X
	Microsoft Windows	X
SPARC 64-bit	Solaris	—		X
AMD64	Linux	—		X
	Microsoft Windows	—		X

Legend:   X = default VM      — = client VM not provided for this platform

Java HotSpot VM argument matrix – standard options

* Standard options guaranteed to be supported by all VM implementations

Oracle Java HotSpot

http://www.oracle.com/technetwork/articles/java/vmoptions-jsp-140102.html

Posted in: Java Heap,JVM