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A comment on What? More 8-Bit Microcontrollers?. Parent comment

Re:What? More 8-Bit Microcontrollers? by monocasa on Friday July 01, 2022 @10:30AM (#31946903)
The only version of linux I know of that's capable of hard real time performance isn't really linux anymore but instead just runs an rtos microkernel underneath linux to make real time guarantess and simply runs linux as the lowest priority task on that kernel.

https://en.wikipedia.org/wiki/RTLinux

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Re:What? More 8-Bit Microcontrollers? by zozbot234 on Friday July 01, 2022 @11:02AM (#31947330)
RTLinux is quite old. There's an official patchset for real-time preemption in Linux that's making its way to the mainline kernel.
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Re:What? More 8-Bit Microcontrollers? by monocasa on Friday July 01, 2022 @11:19AM (#31947614)
If you're talking about the preempt-rt patches being merged, those are very soft real time.
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