From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.candelatech.com ([208.74.158.172]:58754 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905Ab2FKRxA (ORCPT ); Mon, 11 Jun 2012 13:53:00 -0400 Message-ID: <4FD63078.9000808@candelatech.com> (sfid-20120611_195304_117371_9EBEA353) Date: Mon, 11 Jun 2012 10:52:56 -0700 From: Ben Greear MIME-Version: 1.0 To: Antonis Hadjiantonis CC: linux-wireless@vger.kernel.org Subject: Re: ath9k rate control statistics not updated for UDP References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 06/11/2012 06:37 AM, Antonis Hadjiantonis wrote: > I am using iperf to test rate control algorithms (use default:minstrel_ht) on an > ath9k device (WRT160NL OpenWRT Backfire 10.3.1 r29592). > When I use UDP traffic over an 802.11g connection, the rcstat file is not > updated. Not sure if the rate control algoritmh works during the process. > If I use TCP traffic, rcstat is updated and statistics/rate change accordingly. > > Is this the correct behaviour of minstrel RC? I went through documentation > regarding MRR and retransmission bounds but wasn't able to figure it out. Any > one noticed something similar? Your UDP traffic may be completely uni-directional, so no packets are ever received. Maybe try setting up a bi-directional traffic flow? Ben > > Thanks in advance, > Antonis > > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Ben Greear Candela Technologies Inc http://www.candelatech.com