title: JVM - How much RAM should I allocate
body: <p>I didn't find a suggestion on how much RAM I actually should allocate to the JVM.</p>
  
  <p>Assuming that my computer has 4GB RAM and runs Windows 10. I nearly only use Java Applications on it. With how much RAM should I start the JVM? The system needs RAM for itself too, so in my logic, I should not allocate 4 GB even if that is possible.</p>
  
  <p>This isn't a black/white question, I just want to have an idea and how to come to an answer in this question.</p>