4 ms·

How is the mainframe's 100% number different from the upper boundary that RTOSes offer? It's not 100%, is it?

• bayindirh 3y ago
  What I tried to say is, a mainframe might answer late, but rarely, and very slightly. a RTOS doesn't deviate from that number in either direction. It's neither early nor late. Some RTOS even doesn't consider late answers as acceptable.
  • jupp0r 3y ago
    Yeah exactly. My arm64 Linux box also might answer late, but rarely.
    • bayindirh 3y ago
      That's true, but that jitter envelope gets bigger as the load increases. For a mainframe this jitter envelope is much narrower, and in a competent RTOS, that's basically 0.