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Re: Anyone doing WiFi throughput tests?
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Adrian Chadd wrote: > On 25 May 2012 20:17, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: > > We've been doing some tests using Atheros stations and various APs. The max > > throughput > > we've seen so far is about 237Mbps (received UDP payload on the stations). > > (Open-Air, AP about 5 feet away, 3x3 MIMO, HT40, 5Ghz, etc). > > > > We are still running lots of different permutations, but I am interested if > > anyone else has any numbers to share (official or otherwise). > > FWIW, FreeBSD was getting 270MBit/sec one-way UDP and 150MBit one-way > TCP out of AR9160/AR9280's late last year. I should re-run those tests > again now that I've fixed a bunch of things and see if I've regressed. > Those are 2T2R devices w/ a Routerstation Pro (AR7161) as the hostap. 270 Mbps with a 2-stream device ? That seems abnormally high. :) > At that stage I was maxing out the AR7161 CPU quite badly and filling > up all kinds of TX/RX paths, to the point that beacon transmission > stopped being reliable. But I haven't really sat down and run > performance measurements on MIPS so it's quite possible there's some > inefficiencies in FreeBSD that I can work around (to reduce the CPU > overhead, I was happy with the throughput.. :) > > Sujith, would you mind testing out ath9k/openwrt on a DB120 and see if > you can get the same results as our internal LSDK builds? Odd. I get low numbers with a DB120 running OpenWRT (git HEAD). TCP TX - ~260 Mbps. TCP RX - ~160 Mbps. UDP RX - ~240 Mbps. UDP TX - iperf borks and doesn't display anything. The load seems to be a bit high (average: 1.92, 1.06, 0.61 ) and the console becomes laggy. Maybe -- 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