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I'm looking for a Java Profiler for use in a very high demand production environment, either commercial or free, that meets all of the following requirements:
Essentially I need something that can sit dormant in production when everything is fine without anyone knowing or caring that it is there, but then be able to connect to it hassle (and performance degradation) free to pinpoint the hard to find problems like hotspots and synchronization issues.
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You can do it in production low overhead. To overcome some of the practical issues around doing it, you should profile all the time, and it makes life a lot easier. By profiling all the time, it not only solves your practical issues from before, but actually opens up a whole bunch of new capabilities as well.
YourKit offers both paid licenses for commercial use, with a free trial, and lower cost or free licenses for non-commercial use.
It is a JVM-based tool that works at runtime. The JMC provides JMX (Java Management Console ), JFR (Java Flight Recorder), and many other plugin tools. The JMX is useful for monitoring and managing the Java application, and JFR is a profiler.
Have you tried YourKit? It has almost all of the features you are looking for.
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