Hi Andreas, > bad guy is back again :-) :) > > Gabor Juhos wrote: >> This patch-set implements experiemental support for the >> RT3593 chipset. The patches are tested on the Linksys >> AE3000 USB device only, however other USB devices which >> are using the RT3573 chips might work as well. > > I did another test with raspberry pi. Same network parameters (2.4 GHz, > 40MHz, eap-tls, ccmp/ccmp) but this time w/o any other load on the > wlan. But there is a reinforced-concrete floor between AP and STA. > > netperf with rt2800usb / backports-20130617 / kernel 3.6.11 gives: > > MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.39 28.16 > MIGRATED TCP MAERTS TEST from 0.0.0.0 () port 0 AF_INET from server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.00 30.23 > TCP SENDFILE TEST from 0.0.0.0 () port 0 AF_INET to server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.35 27.69 > > > Same with DPO_RT5572_LinuxSTA_2.6.1.3_20121022 > > MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.01 97.95 > MIGRATED TCP MAERTS TEST from 0.0.0.0 () port 0 AF_INET from server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.01 121.69 > TCP SENDFILE TEST from 0.0.0.0 () port 0 AF_INET to server port 0 AF_INET > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.01 82.75 > > If you compare the result w/ rt2800usb/AE3000 with rt2800usb/rt3572[1] > you can see: no difference :-(. These results with the rt2800usb driver are quite bad. I don't yet have an idea what causes the huge performance loss on that platform. Although I don't have a Raspberry Pi nor any RT3572 based USB device, but I can test the AE3000 on a few different embedded platforms. I will do some performance tests on those once I have fixed the AP mode support for the RT3593. -Gabor -- 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
