One of the new white papers on the Sun web site is on the Java HotSpotTM Virtual Machine (VM). The Java HotSpot VM maximizes deployment of enterprise applications and is a core component of JavaTM 2 Platform, Standard Edition (J2SETM) software. The Java HotSpot VM provides advanced optimization, garbage collection, and thread synchronization capabilities. It has separate compilers for client and server environments so that applications can be optimized according to their target deployment environments. Client applications start up faster and require a smaller memory footprint, and server applications can achieve better sustained performance over the long run.

The white paper covers topics of the Java HotSpot VM architecture and compliers. The architecture discussion details memory model and ultra-fast thread synchronization. HotSpot detection and dynamic de-optimization are discussed. Also covered is what is new in this release, the runtime, garbage collection, and Java HotSpot Server VM optimizations.

http://www.sun.com/software/whitepapers.html [...read more...]

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