Klaus Kinski <jpo234@xxxxxxxxxx> writes: > The captures I used to create the statistics are here: > https://drive.google.com/open?id=0ByFGz3ZH6JcYMGp0a05lYzBPNzA > > An obvious difference is, that Madwifi sends 5 packets in a row > without waiting for an ACK whereas ath9k/mac80211 always seems to wait > for an ACK. This seems to point to the "net80211 aggressive mode > theory" https://wiki.freebsd.org/WifiAggressiveMode, IMHO. I'm not too familiar with that part of the stack, but that seems reasonable, yeah. AFAIK the "aggresive mode" is a pre-802.11n feature, though, which is why you won't see that in ath9k. In 802.11n this kind of bursting was replaced by aggregation, which you're not getting any of since you're running in 802.11a mode, obviously. The lack of bursting will translate to slightly lower throughput, which will be why you see fewer packets transmitted by ath9k. Of course, if your receiver supported aggregation, the numbers would look dramatically better in ath9k's favour... ;) -Toke
