From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 2B1E1202295 for ; Wed, 22 Aug 2012 11:54:18 -0700 (PDT) Received: by wgbfa7 with SMTP id fa7so799993wgb.28 for ; Wed, 22 Aug 2012 11:54:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=PAKfRz4HulrIfeaX9C1w3LK2kQMnRgloUbTZg29Kv3M=; b=B4mKvQ/X5/Q/daiZPtwNwSqxOylkJuAT94OEd8DlipSnAHPLt+2AY8nqLbY5ZnQAL8 kY0793QmiBalGthl4DTNcGwl0e04kwY0cex9aty3Pb70Zj2+x7kghbeAfE4UOpLgdrVz MN+wq5AcKHcGB56Vnsw+B64mRVWVEnoAZy5pajFzwwErwlkgYLDKsJ/hXQYWkxt3sPwO wI1xCDNRRnD76PpzLAxLBPopmfkgM+THOoAmaJb7c4nvHxMj2vsENpM9vwikUHxPD2tr T9o8+KKmZzCIoDvWTxYB3SfdW3fkLCnYk9hjnFoTC+Z11mekNww5pOHKD31pOODxkVN0 tVxA== MIME-Version: 1.0 Received: by 10.216.237.161 with SMTP id y33mr11016694weq.62.1345661655494; Wed, 22 Aug 2012 11:54:15 -0700 (PDT) Received: by 10.223.143.69 with HTTP; Wed, 22 Aug 2012 11:54:15 -0700 (PDT) In-Reply-To: <1345659822.690830074@apps.rackspace.com> References: <36D61FDC-9AA9-46CC-ACBB-2D28B250C660@gmx.de> <2998C331-777B-41B3-A6BC-8285461EF729@gmx.de> <1345516397.664231592@apps.rackspace.com> <1345659822.690830074@apps.rackspace.com> Date: Wed, 22 Aug 2012 11:54:15 -0700 Message-ID: From: Dave Taht To: dpreed@reed.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "cerowrt-devel@lists.bufferbloat.net" Subject: Re: [Cerowrt-devel] cerowrt 3.3.8-17 is released X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Aug 2012 18:54:18 -0000 Yes. As it is highly important to me to only get bug reports like this one http://www.bufferbloat.net/issues/330 only every 5 years or so, surviving stress testing is paramount. to whit, I'm planning on dropping bind from the next release, switching to dnsmasq and busybox ntp, and disabling or dropping the underused polipo proxy - This would free up somewhere around 8-12MB of memory on boot. in addition, eric dumazet has proposed two patches on the codel mailing list that should reduce skb (packet buffer) size when needed and possible. https://lists.bufferbloat.net/pipermail/codel/2012-August/000422.html I'm also looking into a possible memory leak on an error path... And: As noted in a prior message there are also some improvements to codel that could be made, particularly to have a shared buffer cache across multiple hardware queues. I would like to be able to thoroughly stress test codel and fq_codel in the next release of cerowrt. on 128MB systems such as the 3800 I would hope that we'd have enough memory for things like bind, but as there are also 32MB systems in the openwrt mix, doing what we can, throughout the stack, to not run out, is a good thing. On Wed, Aug 22, 2012 at 11:23 AM, wrote: > Ahhh, thanks, Sebastian. Now I understand what you are doing is a stres= s > test. --=20 Dave T=E4ht http://www.bufferbloat.net/projects/cerowrt/wiki - "3.3.8-17 is out with fq_codel!"