At the time (March 2020) of writing this article, there are 600+ arguments that you can pass to JVM just around garbage collection and memory. If you include other aspects, the number of JVM arguments will easily cross 1000+. It’s way too many arguments for anyone to digest and comprehend. In this article, we will highlight seven important JVM arguments that you may find useful.
1. -Xmx and -XX:MaxMetaspaceSize
-Xmx is probably the most important JVM argument. -Xmx defines the maximum amount of heap size you are allocating to your application. (To learn about different memory regions in a JVM, you may watch this short video clip). You can define your application’s heap size like this: