5. Java Application Profiling

Chapter 2, “Operating System Performance Monitoring,” made a clear distinction between the activities of performance monitoring, performance profiling, and performance tuning. Before jumping into the details of what is involved in performance profiling a Java application, it is worthy to revisit the performance profiling definition. Performance profiling is an activity of collecting performance data from an operating or running application that may be intrusive on application performance responsiveness or throughput. Performance profiling tends to be a reactive type of activity, or an activity in response to a stakeholder reporting a performance issue, and usually has a narrower focus than performance monitoring. ...

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