I've been doing some performance testing, and having lots of stations causes quite a drag: total throughput with 1 station: 250Mbps TCP throughput, total with 50 stations: 225 Mbps, and with 128 stations: 20-40Mbps (it varies a lot..not so sure why). I poked around in the rx logic and it seems the rx-data path is fairly clean for data packets. But, from what I can tell, each beacon is going to cause an skb_copy() call and a queued work-item for each station interface, and there are going to be lots of beacons per second in most scenarios... I was wondering if this could be optimized a bit to special case beacons and not make a new copy (or possibly move some of the beacon handling logic up to the radio object and out of the sdata). And of course, it could be there are more important optimizations...I'm curious if anyone is aware of any other code that should be optimized to have better performance with lots of stations... Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- 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
