From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Date: Wed, 07 Mar 2012 16:40:13 -0800 Subject: [ath9k-devel] Low speeds when AP is very close to stations. In-Reply-To: <4F57D05B.2070806@candelatech.com> References: <4F57D05B.2070806@candelatech.com> Message-ID: <4F57FFED.8040007@candelatech.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On 03/07/2012 01:17 PM, Ben Greear wrote: > I put two ath9k (AR9300) nics in one machine, with > 6 antenna poking out, and had one NIC be the AP > for the other. I was using TCP before on 3.3.0-rc5+... I upgraded to 3.3.0-rc6+, and saw around 10Mbps performance. I tried 3.0.23 and saw around 19Mbps. And, I tried UDP on the 3.3.0-rc6+ and it runs a full 20Mbps with a few drops. I still see lots of RX-CRC and some RX-Frame errors reported by the NIC (as seen in /debug/ieee80211/wiphy0/ath9k/recv), but maybe things aren't as bad as they first appeared. The stations are still bouncing around in their rate control algorithm..typically under 200Mbps (NIC should support up to 450Mbps), however. The signal stays at around -12, and noise seems a constant -88. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com