Approach to Performance Tuning

Performance issues in a application manifest as bottlenecks in one or more of the following 4 layers: Application: Application is not designed, developed or configured properly. Platform: The platform that the application runs under (e.g. App Servers, Databases etc.) is not setup and configure. System:...


JVM Profiling: Thread Dumps

Thread dumps are possilby the most useful tool in diagnosing concurrancy related issues. You can get a thread dump at any time by sending a break signal to the JVM. In Windows it's CTRL-Break and in Unix/Linux it's kill -3 <pid> The possible issues to...


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