Hi, I guess this patch will spawn a discussion, so let me comment a little more. I have a rt61pci card sitting in the box under my desk. Seems reception isn't really good below my desk :-) With the current rc80211_simple I have the following behaviour: Failed frames accumulate until rc80211_simple decides to lower the rate. Unfortunately, the rate control algorithm is quite unresponsive, so my rate goes down to 1Mb/s immediately. Then I have to wait for some minutes until the statistics have recovered enough for the rate control to raise the rate. Of course it goes straight through the roof to 54Mb/s. Errors accumulate, and soon I'm back at 1Mb/s. And so on. My patch changes the way the average of failed frames is computed. By using a moving average approach, old values don't influence the estimate after some time (note the current approach always uses the plain counters, thus using all information accumulated since the interface has been brought up!). This makes the estimate more responsive and thus the rate control algorithm works a lot better. I've tested my approach by listening to web radio for some time and it successfully keeps me between around 24Mb/s and 54Mb/s. From what I see here, that's a big improvement over the roller coaster rate control behaviour I had before. Mattias - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
