> And then... can we reduce wakeup latency in general without raising HZ? Other > systems (e.g. DFly) have better wakeup latencies and still have HZ=100. What > are they doing? Can we borrow it?
https://frenchfries.net/paul/dfly/nanosleep.html OpenBSD is still adding that one tick which results in a (typical) sleep duration of no less than about 20ms.
