Hello all! As promised, I repeated the test before with another AP. The destination host of netperf was the same. See below! The test was done using netperf with the following two calls: netperf -t TCP_MAERTS -H host -l 60 netperf -t TCP_STREAM -H host -l 60 The test was done with two different notebooks as STA: notebook ath9k: built-in ar9285 device, intel core i5 processor, linux 3.2.1 / 64 bit kernel. notebook rt3572: WUSB600Nv2 WLAN USB stick (inserted horizontally into the USB port of the back of the notebook), intel celeron M processor, linux 2.6.37.6 / 32 bit kernel, Ralink rt5572sta. AP: Linksys WAP610N, connected to the host (destination of netperf) with fast ethernet. The network parameters are: 2,4 GHz, 40 MHz, WPA2 EAP-TLS, CCMP The following chart should be read like this: - one measurement / line: the device operates alone - two measurements / line: both devices run exactly (+/- few ms) at the same time - one direction of the data stream / line: both devices operate at the same direction - two directions of the data stream / line: each device operates at the direction next to it 10^6bits/s 10^6bits/s ath9k rt3572 table chair TCP_STREAM STA -> AP 33.12 TCP_STREAM STA -> AP 74.32 TCP_STREAM STA -> AP 12.64 50.83 TCP_STREAM STA -> AP 11.96 52.44 TCP_STREAM STA -> AP 15.33 53.46 TCP_STREAM STA -> AP 12.52 51.03 TCP_STREAM STA -> AP 11.67 53.80 TCP_MAERTS AP -> STA 51,52 TCP_MAERTS AP -> STA 36.48 TCP_MAERTS AP -> STA 10.73 33.85 TCP_MAERTS AP -> STA 2.93 45.38 TCP_MAERTS AP -> STA 8.67 36.53 TCP_MAERTS AP -> STA 13.35 29.98 TCP_MAERTS AP -> STA 11.13 33.10 TCP_MAERTS AP -> STA 21.16 30.38 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 22.86 26.76 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 23.64 25.37 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 22.45 27.95 TCP_STREAM STA -> AP TCP_STREAM AP -> STA 3.99 42.20 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 13.24 28.40 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 12.80 28.46 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 12.78 28.63 TCP_MAERTS STA -> AP ---------------------------------------------------------------------- The position of the notebooks was changed: ath9k rt3572 chair table TCP_STREAM STA -> AP 49.00 TCP_STREAM STA -> AP 76,32 TCP_STREAM STA -> AP 15.97 55.96 TCP_STREAM STA -> AP 18.96 49.79 TCP_STREAM STA -> AP 14.52 57.33 TCP_STREAM STA -> AP 20.04 51.52 TCP_STREAM STA -> AP 15.57 56.06 TCP_MAERTS AP -> STA 54.25 TCP_MAERTS AP -> STA 40.13 TCP_MAERTS AP -> STA 14.14 34.51 TCP_MAERTS AP -> STA 9.72 40.47 TCP_MAERTS AP -> STA 9.00 40.54 TCP_MAERTS AP -> STA 13.99 35.35 TCP_MAERTS AP -> STA 21.98 47.26 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 16.07 53.88 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 17.32 49.53 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 17.08 56.57 TCP_STREAM STA -> AP TCP_MAERTS AP -> STA 21.63 50.91 TCP_STREAM STA -> AP TCP_STREAM AP -> STA 1.58 49.03 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 5.36 46.49 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 8.71 40.88 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 4.72 45.95 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 12,29 39.31 TCP_MAERTS STA -> AP TCP_STREAM AP -> STA 4.68 46.43 TCP_MAERTS STA -> AP Regards, Andreas -- 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
