Chapter 47. Monitoring System Performance

One of the hardest things to do when working with any programming language or application server is to understand why an application is behaving unexpectedly after it has been deployed. Perhaps you are experiencing inexplicable slowdowns in performance, rapid spikes in memory usage, sudden unresponsiveness, or other strange behavior that cannot be specifically tied to your application code. This can be an incredibly frustrating experience trying to understand what’s going on with your application, but in this chapter you will learn how to use a number of tools to help you monitor and understand what ...

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