Garbage Collection is the most significant performance bottleneck for Java applications. Tuning GC correctly can potentially deliver significant performance gains. Health Center identifies where garbage collection is causing performance problems and suggests more appropriate command line options.
The Summary section provides an overview of object allocation and Garbage Collection.
Key observations and recommendations are highlighted in the Analysis and Recommendations section. (Identifying memory leaks, excessive amount of time expended in Garbage Collection, suggestions on resizing heap are examples).
Based on the visualization and recommendation provided in the Garbage Collection Subsystem of the Health Center, deeper analysis can be done through Garbage Collection and Memory Visualizer Tool (GCMV), a tool to profile Garbage collection activity which can also be installed in IBM Support Assistant.