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A comment on New IBM LinuxONE 4 Express – Rack-mounted pre-configured Linux mainframe. Parent comment

Re:New IBM LinuxONE 4 Express – Rack-mounted pre-configured ... by jupp0r on Wednesday February 07, 2024 @09:11AM (#39288764)
How is the mainframe's 100% number different from the upper boundary that RTOSes offer? It's not 100%, is it?
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Re:New IBM LinuxONE 4 Express – Rack-mounted pre-configured ... by bayindirh on Wednesday February 07, 2024 @01:06PM (#39291934)
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.

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Re:New IBM LinuxONE 4 Express – Rack-mounted pre-configured ... by jupp0r on Thursday February 08, 2024 @01:41AM (#39298994)
Yeah exactly. My arm64 Linux box also might answer late, but rarely.
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Re:New IBM LinuxONE 4 Express – Rack-mounted pre-configured ... by bayindirh on Thursday February 08, 2024 @03:31AM (#39299652)
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.
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