GP was not talking about "any GC-event", but about "any full GC (pause) events". That's where the heap has gotten so messy that everything has to stop while the

GP was not talking about "any GC-event", but about "any full GC (pause) events". That's where the heap has gotten so messy that everything has to stop while the GC sorts it out. It's an absolute worst case scenario. Under normal conditions on a modern JVM, the GC runs in parallel with the application and does not cause any pauses.