From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ali Abedi Date: Thu, 25 Oct 2012 15:46:07 -0400 Subject: [ath9k-devel] Performance degradation when monitor interface is enabled In-Reply-To: References: <5086EA9A.6030400@mailservices.uwaterloo.ca> <5086FFE3.4010108@mailservices.uwaterloo.ca> Message-ID: <508996FF.8060003@mailservices.uwaterloo.ca> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Thanks for the answers. The performance issue theory doesn't make sense as we get the same lower (and stable) throughput on different machines with difference CPU powers or when power saving mode is enabled/disabled (which changes CPU clock frequency) on this machines. The interesting thing is that when I remove the monitor interface the throughput remains the same (low). Isn't this a bug? Thanks, Ali On 10/23/2012 4:51 PM, Adrian Chadd wrote: > On 23 October 2012 13:36, Ali Abedi wrote: >> Thanks Adrian. But there is no problem on the receiver side I assume >> (monitor mode is not enabled on the receiver). There are gaps between frames >> sent by the sender. It seems that the sender is waiting or doing something >> between frames (other than back-off, DIFS, ...) when the monitor mode is >> enabled on the sender. > I've no idea. You can try manually overriding the RX filter register > when monitor mode is enabled. See if that fixes it. > > > Adrian