Getting a genuine 1 kHz control loop on stock Linux
PREEMPT_RT plus CPU isolation gets us 0.4 ms jitter. DDS discovery was the real killer — pinning the participant fixed a 12 ms periodic spike.
@hkoenig · Controls Engineer · Gothenburg, SE
Real-time control loops and the pain of 1 kHz on Linux.
PREEMPT_RT plus CPU isolation gets us 0.4 ms jitter. DDS discovery was the real killer — pinning the participant fixed a 12 ms periodic spike.