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by jeffreygoesto 2123 days ago
To me it looks like the frequency of the control loop, not the cpu core frequency was meant? 1kHz is typical for i.e. steering or abs control loops.
1 comments

Sure. The cpu's are normal Intel 4GHz. The control loop is 10Khz. In space the CPU's would be radiation hardened and throttled, somethink like 250Mhz. Still enough.

The bottleneck is not the CPU, nor the model running in the loop, but the IO devices and driver's costing latency. In real-time latency kills you. Which turns out to be bended cables, missing resistors, broken filters, or such. A simple cycle-miss in real-time means reboot or worse.