HPjmeter 4.3 User's Guide

Details

Here are two possible ways to make improvements:

• Tune the heap parameters for better performance. For HP HotSpot VM, run your application

with the -Xverbosegc option and view the results in HPjmeter.

• If the heap has been already tuned, you can decrease the application pressure on the heap,

that is, decrease the rate of object allocations, by trying these alternatives:

◦ Reusing objects

◦ Changing memory-inefficient algorithms

Object allocation statistics can help identify areas for improvement.

Figure 41 Monitoring Metric: Percentage of Time Spent in Garbage Collection