title: What is the 'realtime' process priority setting for?
body: <p>From what I've read in the past, you're encouraged not to change the priority of your Windows applications programmatically, and if you do, you should never change them to 'Realtime'.</p>
  <p>What does the 'Realtime' process priority setting do, compared to 'High', and 'Above Normal'?<img src="https://i.stack.imgur.com/frFln.jpg" alt="The process priority list, ranging from Low to Realtime." /></p>