@sun @pro @thendrix They've literally spent the last 20 years working on the realtime Linux patches and they're getting very close to being upstreamed. I believe the last problems they're dealing with have to do with kernel logging which is a blocking operation

edit: found the remaining things

> There are various patches around printk, a number of Intel i915 DRM patches, lazy preemption, various ARM and PowerPC changes, and also the actual bits for being able to enable the real-time kernel builds (setting ARCH_SUPPORTS_RT).

printk is the kernel logging