Technically yes. But it can’t support many hard real-time use cases. For that you need a true RTOS, thought from the ground up for that purpose. Something like VxWorks, QNX, some flavors of L4.
Only ever interacted with 6.0 beta. It was a great microkernel system. Even its GUI, Photon, was of a microkernel design, each module operating as a separate process. And it looked so good.
Sort of. There’s realtime builds, but the Linux definition of real time is more relaxed than dedicated RTOS’s in exchange for a much more feature-filled OS. You should not use Linux if people could die when you miss a deadline. You want a simple system where it’s easier to prove that can never happen.
Pretty much the only place it doesn’t run is where you have hard real-time requirements and on extremely small embedded micro controllers.
But isn’t there a RTOS Linux kernel?
Technically yes. But it can’t support many hard real-time use cases. For that you need a true RTOS, thought from the ground up for that purpose. Something like VxWorks, QNX, some flavors of L4.
I miss QNX.
It’s still around. The latest release (8.0) is free-as-in-beer for non-commercial use. It’s still proprietary though.
Only ever interacted with 6.0 beta. It was a great microkernel system. Even its GUI, Photon, was of a microkernel design, each module operating as a separate process. And it looked so good.
Sort of. There’s realtime builds, but the Linux definition of real time is more relaxed than dedicated RTOS’s in exchange for a much more feature-filled OS. You should not use Linux if people could die when you miss a deadline. You want a simple system where it’s easier to prove that can never happen.
I believed the kinux kernel recently became real time?