Date:
June 23, 2009 - 2:00pm
Abstract: Memory management in the Sun Java Virtual Machine (JVM) can be hard to understand. Garbage Collection (GC), the process of cleaning-up memory after use, can have dramatic and fatal effects on application performance. Garbage Collection stop-the-World events are the primary limiting factor in sizing the JVM for large institutions. With over 50,000 active users in courses as large as 1200 students, and having over 7000 active courses, the University of Toronto encountered some very unusual problems when sizing the JVM heap on Sun T2000 hardware with 32GB of 64-bit memory.
