> > initialized the ackto to max: > > > > A) avoidance of late-ack state > > B) not require wpa_supplicant -- not in use by our community today > > C) Suspect some conditions, e.g. low SNR Neighbors, do not trigger > > "late ack" (consistent, with observation of low SNR Neighbors sticking > > at max ack_to with my changes ) > > > > flip the algo off/on when new neighbor joins: > > > > Intended technique to reset ack_to to max. If ack_to is set to 20km > > and then a new adhoc neighbor joins at 30km, this would be a late ack > > state, and unable to detect. My early testing results showed the > > algo off/on would restart the ack_to to max and start the process over > > with the new neighbor. I trust I got it right? > > > > There are 10s to 100s of users testing this bleeding edge change from > > nightly builds, and so far, I've not found a failure case. > > Although, the findings are showing the cases where static setting has > > better throughput. > > > > Joe AE6XE > > > >>> > Hi Joe, > > Purely fyi > > I just pushed dynack improvements to all openwrt branches. > > I also noticed the issues you addressed above, and these patches fix > them for me. > > Regards, > > Koen >
Thanks for update. Updates on performance observations, I've been recommending usage of auto settings to the AREDN community as follows: * best performance gain on Point-to-Point longer distance links (back bone links). I saw ~30% iperf improvement results on a 60km 5GHz link -- ack-to floats up under load. This was about the difference I measured on a similar 3GHz 60km link head-to-head comparison between AirOS auto distance with TDMA and openwrt static distance with CSMA. (3GHz because it takes wifi noise out of the picture.) I want to do a head-to-head comparison again to confirm, but it appears a P2P w/ auto setting CSMA in openwrt will compare similar thoughput as AirOS auto distance TDMA. * good/poor performance for Point-to-Multipoint long distance settings, up to 20km range (cell coverage). If weak SNR stations, a static setting is optimal. If quality signal, auto works good. * Poor performance for short distances, e.g. in the house. auto calculated ack_to settings are several km. Performance is much poorer than a static setting of <1km. There seems to be something going on with calculation when 'on the bench' testing with short distances. Maybe a bias needs to be applied? Joe AE6XE _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
