Oracle - Java Performance Tuning
Oracle's JDK is used for the Windows and Red Hat Linux platform. For performance tuning refer to Oracle documentation.
Java Tuning Java Tuning White Paper
Java SE 6 Performance White Paper
Java SE 6 HotSpotâ„¢ Virtual Machine Garbage Collection Tuning
Java SE 8 HotSpotâ„¢ Virtual Machine Garbage Collection Tuning