From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f171.google.com (mail-we0-f171.google.com [74.125.82.171]) (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 2544C201B22; Fri, 18 May 2012 15:34:05 -0700 (PDT) Received: by wejx9 with SMTP id x9so4396555wej.16 for ; Fri, 18 May 2012 15:34:03 -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=PVFaEzX1bh3JMcCualP2jlL5JwPahcEP+OuEAmO34ao=; b=uid9xUb8JWxJp3+9sNMVJaUGAUidVoKlvAlYrOZn0q/9VFScUMoAL4v/ORKVT3fKZd MXV1Ctz/kUV4sj7oE3FI2DpGZGkDj1H/OMzzhvj1foWc5rLeX7HkZZQBaaz2CckqKYYd RSOYzn0lZZu6xOxXDoPw7/yRgm/cm+6HgLPltqfExro7+jvfdb2ymGUU2bpnaF+9crTE ZNQQsLXqmrwEY4+DjNO1T1OQG7911pFLLw8nFawFYxA0P0PRVY0/LE5zMb8Wvyu3Q5Xk 2PVQBljxwcjjA/RODj77Ga/OPl+5liEyhwLKi9evWVH3SDOa9DlLHwJqefJPd52Gbt/J Z7Cg== MIME-Version: 1.0 Received: by 10.216.140.211 with SMTP id e61mr7986117wej.98.1337380443657; Fri, 18 May 2012 15:34:03 -0700 (PDT) Received: by 10.223.115.9 with HTTP; Fri, 18 May 2012 15:34:03 -0700 (PDT) In-Reply-To: References: <532BA404-30FF-4395-9575-709A68E4C723@gmail.com> <1336631707.27520.136.camel@shinybook.infradead.org> <1336633359.27520.147.camel@shinybook.infradead.org> <326E2D44-7A1E-43B8-A84D-E9A0FF04DD9C@gmail.com> <1337003706.2186.10.camel@shinybook.infradead.org> <167A9DFB-CC98-47C5-B4B9-25A11189AA44@gmail.com> Date: Fri, 18 May 2012 15:34:03 -0700 Message-ID: From: Dave Taht To: Jonathan Morton Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: codel@lists.bufferbloat.net, David Woodhouse , bloat Subject: Re: [Bloat] Linux-able modems X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 May 2012 22:34:07 -0000 And felix tells me that the fq_codel fix for better backlog handling is in openwrt 31813. This should improve performance in the case of various forms of flooding, and probably, bittorrent. I've heard a rumor that codel (I don't know about fq_codel, don't have a ns3 simulation yet) is slightly more controlling of TCP reno, than TCP cubic. This is not a disadvantage, in my mind! as the only thing these days that uses a reno-like system is uT= P. Would love some data. I'd intended to setup bittorrent seeder of things like the gutenberg library to take a look at these characteristics, but I'll do that next week, unless someone beats me to it. The openwrt buildbot system is running a little slow these days, while I've donated a machine to the effort, and am hoping to add a second, more would be nice to have. Me, I'm taking the first long weekend off I've had in a year, and going to the Maker Faire, in San Mateo. Should be some pretty nice toys to see, there. But hopefully, builds should be available on Sunday for all platforms. Still a few patches left to come... On Fri, May 18, 2012 at 2:36 PM, Dave Taht wrote: > On Fri, May 18, 2012 at 1:56 PM, Jonathan Morton = wrote: >> >> On 14 May, 2012, at 4:55 pm, David Woodhouse wrote: >> >>>> So I repeat my question: where can I reliably go and buy a DSL modem >>>> that I can put Linux on? =A0It probably helps to mention that I'm in >>>> Finland, so a European (or at least British) reseller is preferable. >>> >>> If the Geos or Solos are too expensive, I'd be looking for other ADSL >>> devices supported by OpenWrt. Probably Lantiq-based. The Netgear >>> DGN3500B perhaps (see recent traffic on openwrt-devel). >> >> The 3700 is back-ordered by weeks, and the 3800 doesn't have a modem, an= d the 3500 isn't even in the local catalogues. =A0Netgear doesn't seem to b= e well regarded over here, even by the hacker types - and you *know* we hav= e hacker types aplenty. >> >> I double-checked all my hardware again, and while I can technically get = OpenWRT on my D-Link modem, it can't actually drive the *modem* part becaus= e Broadcom is mean and stingy. >> >> After biting the bullet and going through the local retailers' catalogue= s with a fine-toothed comb, I eventually found this - a fine specimen as fa= r as hardware specs goes: >> >> http://www.jimms.fi/tuote/WBMR-HP-G300H-EU >> >> It happens to be Lantiq based, and so OpenWRT shows full support for it: >> >> http://wiki.openwrt.org/toh/buffalo/wbmr-hp-g300h >> >> Jimm's is transitioning to a purely mail order system and is based in a = different city, but it turned out that my local megahypersuperretailer had = just got a batch in stock, so I got one from there. >> >> Well, this should be fun. > > As noted elsewhere, fq_codel is now the default qos system in openwrt > as of build 31761 > > http://buildbot.openwrt.org:8010/one_line_per_build > > 37 arches, 150 platforms, no waiting. > > There are still a few patches left to land, and it doesn't turn it on > on the wireless or ethernet by default, although it should definitely > do so, in the case of the latter, and well, it helps a bit on > wireless, too, although major surgery on the stack remains to get it > right. > > And codel + QFQ remains interesting. > > I look forward to hearing about your results. > >> =A0- Jonathan Morton >> > > > > -- > Dave T=E4ht > SKYPE: davetaht > US Tel: 1-239-829-5608 > http://www.bufferbloat.net --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net