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This is a classic issue for Java vs compiled to binary languages such as C. Java does its own memory management thus allocates a big chunk of memory from the OS

This is a classic issue for Java vs compiled to binary languages such as C. Java does its own memory management thus allocates a big chunk of memory from the OS at startup. It also has garbage collection which runs from time to time dependent on what gc implementation is used. These issues can be mitigated by carefully tuning the parameters of the Java virtual machine, but in practice, for most projects, it is not an issue.

CaptainJustin 6y ago
You are correct. Some of this has changed significantly somewhere between Java 8 and 16. For example the Java applications we're running against Hotspot 16 regularly gives memory back to the host. It's GC pauses are also quite insignificant now for a microservice regularly allocating and GCing.