I have a ubuntu 10.04 based wireless router running hostapd 0.7.3, the latest compat-wireless ath9k. The same experiments were tried using hostapd 0.6.9 and ath9k from 2.6.32 and 2.6.35 as well. also, hostapd was tried in g mode and n mode, with wpa/wpa2 on and off, and with high throughput on and off. I always get the same (or similar) results. The symptoms are like this: pinging a macbook pro, or an iphone, from the AP results in an almost perfectly regular saw-wave like pattern. The ping time starts at 50ms, steadily rises every subsequent ping until it reaches somewhere over 200ms, then abruptly resets back to 50ms, and rises again. Graphing it in excel shows it is strangely very precise. Between all the different version I've tried, I've seen slight variations on this, running the latest versions of everything now it seems like it starts closer to 1ms and rises to 200ms then starts over. Pinging another wireless device on my network (an HP wireless printer) results in very fast, steady 5ms ping times. So it's not ALL wireless clients, just some. In this case it seems apple products, but I have nothing else currently to test with. Pings look like this: http://tinypaste.com/9dc704 Two graphs I made: http://imagebin.org/142438 http://imagebin.org/142439 daemon.log: http://tinypaste.com/7a452e dmesg: http://tinypaste.com/1cbe32 kern.log: http://tinypaste.com/cd1a1 lspci for my wireless card: 00:0e.0 Network controller: Atheros Communications Inc. AR922X Wireless Network Adapter (rev 01) If I can supply any more information, please let me know what. -- 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
