What's going on with memory in Java?

Question

Java

Hello everyone, I'm new to Java, maybe a lammer question: I
wrote an application, a bunch of threads are created and something is calculated. According to the idea, everything should go smoothly, without sudden allocations / releases of memory, and I expected that the memory graph would be straightforward, but the profiler shows this:

Is it worth worrying about this behavior? Or is it ok?

Answer 1

everything is fine, the memory grows during operation, then the GC cleans up and the heap is freed