From owner-freebsd-current@FreeBSD.ORG Thu Jun 16 05:48:14 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F0AA516A41C for ; Thu, 16 Jun 2005 05:48:14 +0000 (GMT) (envelope-from sam@errno.com) Received: from ebb.errno.com (ebb.errno.com [66.127.85.87]) by mx1.FreeBSD.org (Postfix) with ESMTP id BD00B43D53 for ; Thu, 16 Jun 2005 05:48:14 +0000 (GMT) (envelope-from sam@errno.com) Received: from [66.127.85.94] ([66.127.85.94]) (authenticated bits=0) by ebb.errno.com (8.12.9/8.12.6) with ESMTP id j5G5mDms011302 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 15 Jun 2005 22:48:13 -0700 (PDT) (envelope-from sam@errno.com) Message-ID: <42B112AF.8050708@errno.com> Date: Wed, 15 Jun 2005 22:48:31 -0700 From: Sam Leffler Organization: Errno Consulting User-Agent: Mozilla Thunderbird 1.0.2 (Macintosh/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rong-En Fan References: <42313286.2060206@errno.com> <423212CC.90800@centtech.com> <6eb82e050615061535bcc722@mail.gmail.com> In-Reply-To: <6eb82e050615061535bcc722@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD Current Subject: Re: [Fwd: cvs commit: src/sys/modules Makefile src/sys/conf files src/sys/modules/ath_rate_sample Makefile src/sys/i386/conf NOTES] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jun 2005 05:48:15 -0000 Rong-En Fan wrote: > On 3/12/05, Eric Anderson wrote: > >>Sam Leffler wrote: >> >>>If you''re an ath user on current it'd be great to get John some >>>feedback on his rate control algorithm as it might be made the default. >>> I've not tested it with 5210 or 5211 cards and it's likely to have some >>>issues with them so beware. To use it be sure you have up to date code >>>and then specify >>> >>>device ath_rate_sample >>> >>>instead of the normal ath_rate_onoe. >> >> >>So far, I see no additional performance, in fact, upload speeds are about 15-20% less compared to the onoe stuff. It's stable and seems to work ok for me however. > > > I have an 5212 card on IBM X31. Setting at the same location, the windows > Atheros driver works very well. However, using FreeBSD the network sometimes > hang and saw some 'ath0 device timeout' at console. But, when I switched to > ath_sample (orig is onoe) it works very well. Althought I didn't > check the speed, > the ssh connection does not hang any more. BTW, ifconfig ath0 list ap shows > that S:N is about 8:0 to 13:0. My current is Jun 15. The sample rate control algorithm is much more responsive than the onoe algorithm. Can't comment on the timeouts w/o more info. Comparing the Atheros ndis driver isn't entirely fair as it will automatically switch between normal operation and XR mode at those signal levels. Sam