HPjmeter 4.3 User's Guide

Details
• For HP Java 1.5.0.12 and later or 6.0.01 or later, this visualizer distinguishes between major
and minor garbage collections such as full GC and scavenge.
Related Topics
• GC Duration Alert (page 128)
• Checking for Proper Heap Sizing (page 53)
• Reviewing the Percentage of Time Spent in Garbage Collection (page 51)
• Allocated Object Statistics by Class (page 145)
• Identifying Excessive Object Allocation (page 54)
• Basic Garbage Collection Concepts (page 103)
Percentage of Time Spent in Garbage Collection
The percentage is an estimated value of the time spent in garbage collection.
Guidelines
• The horizontal red line shows the current average percentage of time spent in garbage
collection.
• An almost steady value of 5 percent or less is considered low and acceptable.
• Sustained values larger than 10 percent suggest room for improvement.
Using Monitoring Displays 143