From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qw0-f43.google.com (mail-qw0-f43.google.com [209.85.216.43]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by lists.bufferbloat.net (Postfix) with ESMTPS id EB6CC2E020A for ; Thu, 21 Apr 2011 15:09:14 -0700 (PDT) Received: by qwf6 with SMTP id 6so118655qwf.16 for ; Thu, 21 Apr 2011 15:09:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:sender:message-id:date:from:organization :user-agent:mime-version:to:subject:content-type :content-transfer-encoding; bh=AFIF9rCWIcsn0q2tHZg1vnP6iYeEmSfYmABZL6zd2mQ=; b=PwsZVQDTKyy7hGaMxDK9o9leHZKJIKshC9QKk0np1XNcGDZMT4TdeS/tJZNZzC91AU TbtM47GU5Yz8DdvAnUUOM9L9ZimDhnzvJP4ItIXCV12EJh69IstcRr2e9WRGmHLDgC4C xUN6pFAQgxuvKQ03uIeQVUT4qL4yUX7YG43cI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:organization:user-agent:mime-version:to :subject:content-type:content-transfer-encoding; b=FxEmln4hw6Vk2huMqhcS+4PcIYt+MmPofxr49MwcvybqT0iiaTpDC3X1fWjJ/gpVVW 8njoAts3+4KTLOFIWcNQuPIh2GPY17TikvPG7SKN9KhlDsTWvzZU/H7djEZH4MPZ9i9P 1jQTJPAKxyDQTqZAWnclOghv4dOyAclbITp9o= Received: by 10.229.78.32 with SMTP id i32mr387387qck.5.1303423753331; Thu, 21 Apr 2011 15:09:13 -0700 (PDT) Received: from [192.168.1.119] (c-98-229-99-32.hsd1.ma.comcast.net [98.229.99.32]) by mx.google.com with ESMTPS id k2sm1641798qcu.43.2011.04.21.15.09.11 (version=SSLv3 cipher=OTHER); Thu, 21 Apr 2011 15:09:12 -0700 (PDT) Sender: Jim Gettys Message-ID: <4DB0AB06.3050609@freedesktop.org> Date: Thu, 21 Apr 2011 18:09:10 -0400 From: Jim Gettys Organization: Bell Labs User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Lightning/1.0b2 Thunderbird/3.1.8 MIME-Version: 1.0 To: bloat-devel@lists.bufferbloat.net Subject: Debloat testing2.6.39-rc4 kernel... Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Apr 2011 22:09:15 -0000 I've built (and am running) John Linville's latest debloat-testing 2.6.39-rc4 kernel. It seems to behave alot better than the 2.6.38 kernel did for me on the Intel iwlagn driver, given (all of) about 10 minutes of testing. We haven't tried to play with SFB yet; we've mostly been router hacking. I put the packages Dave and I are running (64bit Ubuntu 10.10) on http://mirrors.bufferbloat.net/Builds/ I also did a quick script for setting the wireless txqueuelen to something more reasonable at driver up time; you can find it at: http://www.bufferbloat.net/projects/bloat/wiki/Wlan_script; at the moment, it's set to only 32 packets and my latency under load is staying somewhat reasonable with at least some decent throughput. But given 10 minutes of smoke testing... Dead puppies are possible. No warranties, express or implied... I documented this in: http://www.bufferbloat.net/projects/bloat/wiki/Linux_Tips If people have the ability to set up and Ubuntu PPA, or can run packages through RH's build system (Koji, iirc), that would be good, so that people who want to test don't necessarily have to build from source all the time. It would be really good to get debloat testing kernel packages built automatically on an ongoing basis from John's tree,one way or the other. The other way to automate this is by using the server we have now that can build kernels in finite time; we can set up VM's on to build them. But that is a lot more on-going build system maintenance So I'm a fan of using the upstream distro build systems for this if we can; we have lots of build work to do for the work that is underway to debloat the WNDR3700's running OpenWRT. Volunteers more than welcome for either/both. - Jim