Thanks a lot! This is really handy for tuning and testing. I also like the dashboard.
I've updated your patches for master:
(note that I did rip out the STA_SLOW_THRESHOLD and changed the defaults to 5ms/50ms)
Also, nl80211.h in master mac80211 has a different number attributes compared to the one included in iw-5.19, which caused weird behavior trying to change parameters (target would change interval, and interval would try to change ECM, etc.), so I copied the one from mac80211.