Optimizing Cloud Native Java, 2nd Edition

Chapter 8. Components of the Cloud Stack

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Reasoning about Java performance on a single machine is already challenging — there are many variables arising from the JVM subsystems and the underlying hardware. Prior to this chapter, we have explored and discussed how to approach these challenges.

We’ve discussed some aspects of JVM internals, diagnostics, and operating system performance tools and how they help to perform an interrogation of a running process. Going further, mechanical sympathy — understanding the interaction between the JVM and hardware — allows us to address high performance concerns from a single JVM.

In this chapter we are going to break the single JVM model and look at platforms supporting a horizontal deployment model for Java processes. You will see how platforms hosting Java processes have significantly shifted in recent years. Specifically, cloud native environments have altered the landscape and with that the categorization of topics that architects and performance ...