From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tuna.sandelman.ca (tuna.sandelman.ca [209.87.249.19]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 321113B2A4; Sun, 3 Dec 2017 19:11:31 -0500 (EST) Received: from sandelman.ca (obiwan.sandelman.ca [209.87.249.21]) by tuna.sandelman.ca (Postfix) with ESMTP id 9DBDA20072; Sun, 3 Dec 2017 19:14:15 -0500 (EST) Received: from obiwan.sandelman.ca (localhost [IPv6:::1]) by sandelman.ca (Postfix) with ESMTP id F3CBA83C5D; Sun, 3 Dec 2017 19:11:29 -0500 (EST) From: Michael Richardson To: Dave Taht cc: Cake List , "cerowrt-devel\@lists.bufferbloat.net" In-Reply-To: References: X-Mailer: MH-E 8.6; nmh 1.7-RC3; GNU Emacs 24.5.1 X-Face: $\n1pF)h^`}$H>Hk{L"x@)JS7<%Az}5RyS@k9X%29-lHB$Ti.V>2bi.~ehC0; <'$9xN5Ub# z!G,p`nR&p7Fz@^UXIn156S8.~^@MJ*mMsD7=QFeq%AL4m X-Mailman-Approved-At: Mon, 04 Dec 2017 11:44:56 -0500 Subject: Re: [Cake] [Cerowrt-devel] quad core arm X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 00:11:31 -0000 --=-=-= Content-Type: text/plain Dave Taht wrote: > I had multiple goals for them - primarily I wanted cheap and > cheap-to-power wifi and ethernet test targets. I settled on the > c.h.i.p. for a while for wifi. I have a few (3-4) that I'm not using if you want them. (Never removed from the box) > In most cases getting a modern kernel was a major problem. The odroid > C2 was my fastest network test target (can't drive 1gbit bidir tho), > and stuck on linux 3.10 for several years now. (I've heard rumors 4.x > almost works now). I didn't think that odroid had problems taking the latest kernels. I just bought one for a project involving hubofallthings. > Anyway the nanopi folk are now producing a wide range of boards I > haven't tried... til tomorrow: > https://www.amazon.com/gp/product/B0728LPB2R/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1 > These appear to be supported on modern kernels in armbian (which has > thus far been the "best" distro for these hackerboards for me). > https://www.armbian.com/nanopi-neo-2/ I'm using the Orange PI Zero in a project, and armbian debian has 4.13.16 kernel. But, I'm not trying to push gigabit ethernet; rather the opposite. I just want wired connectivity. Sadly the "PoE" support for the OPI0 is not IEEE spec, just a jumper that lets you feed 5V in... Rumours are that the built-in wifi sucks, but I actively don't want wifi anyway. I do like that it can boot uboot from NOR FLASH. I believe I will 3D print a case that accomodates two USB interfaced ethernets via pins on the system, so that from the outside it looks smart. I will have to pick my USB devices carefully as I need auto-X PHYs, which usually only comes with GbE. > On the really high end the 48 core arm boxes from cavium look interesting. I'm told that there is some special sauce to get them to go at the speeds the specs say. Basically you run Linux on one core, and a special (binary blob) micro kernel on the other 47, and manage them via FORCES. -- ] Never tell me the odds! | ipv6 mesh networks [ ] Michael Richardson, Sandelman Software Works | network architect [ ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [ --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEbsyLEzg/qUTA43uogItw+93Q3WUFAlokkrEACgkQgItw+93Q 3WW7/QgAnH19GcrCGC5spLKiq+gmxjGMVlFA++wobkMcptKxGbxS9aPACDs7zQ3k AmxhHX0MB5NAwOi7F9pXxVcE/G3ICIIjYxSdqbENRVorqxdbQcJoxRKjN6miZCwk a7GNG+cJdg/dafb1WftKL0O94U1sEQXFT3AikZ0smYmTrohmhkmWjoEKtHQ+bIvR BVva4/CvVUsRJySWOP1ToBXOdhzjAGtXtgyPFW1wekIOLMuXuL91TPHyYeideGfz Cmc5KQzAQx+1wYeqKNeF61nHbia+nLQ2ZsVPcgO+9KNaU+0uYBHRbTH+myXulHqW rFE0oCwdX+Lwq8rETl9vHAoZDTnQWQ== =BEmW -----END PGP SIGNATURE----- --=-=-=--