Java Performance

• Intertech - Complete Java Performance Tuning Training - Part 1 

http://www.youtube.com/watch?v=YB2xvYCY4B8

• Learn about JVM internals - what does the JVM do? 

http://www.youtube.com/watch?v=UwB0OSmkOtQ&feature=results_main&playnext=1&list=PLB18801A9A208A463

• JVM Tuning & Troubleshooting - Türkçe - Gökhan Fazli Çelik - part 1 of 3 

http://www.youtube.com/watch?v=yUJRMwiEK0E

• From Java code to Java heap

the memory overhead of putting an int value into an Integer object, the cost of object delegation, and the memory efficiency of the different collection types

http://www.ibm.com/developerworks/java/library/j-codetoheap/