From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 58FF93B29E for ; Sat, 4 Nov 2017 11:06:25 -0400 (EDT) Received: from hms-beagle2.lan ([80.135.75.10]) by mail.gmx.com (mrgmx002 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MJSLz-1e950u2o1L-0033jN; Sat, 04 Nov 2017 16:06:23 +0100 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) From: Sebastian Moeller In-Reply-To: <535CD0D7-CB3A-4C42-AB13-548313F9002A@gmail.com> Date: Sat, 4 Nov 2017 16:06:22 +0100 Cc: make-wifi-fast@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: <11277896-AEBE-4C29-8E9F-35CC4307DA35@gmx.de> References: <535CD0D7-CB3A-4C42-AB13-548313F9002A@gmail.com> To: Pete Heist X-Mailer: Apple Mail (2.3273) X-Provags-ID: V03:K0:wBL10JuCP+CXwTrDEm8UKCuFf7SuCE+recpv32KJ7riJUvd7flX EMCP3Sdf218NqtrtAkpMvhrWb0yYHqrSoDNjijKoAzKoZVtaJSHA4M4zh3jYf+KYbrWsTD/ 1+nhdkCTMEC2QGbIw9VXEEaVhRjtJj6laNHKFTzJNKTPb6jxCDLwRYt1CO6k2vMDzoeQ9BI 1v95+WnXbO1C6O1nT3zQg== X-UI-Out-Filterresults: notjunk:1;V01:K0:0HArNs1vC1I=:smLKyzQTUgeOkZttLSRQ88 pXg5cvR3XShFgwASgOwcrPKvVnCQxidB834uwl2uyurYN76ovXGWEmtkITF/8WYYAyQtK915M 7lp4ESNuv4h+SAXFgj5hQsS3z3u0pnr+f2K92ckSPjeumAuFo1JbC5vPMA1ssr6gjL6zjukis Vgkf/lecPMuLlQAbMgEgKB7DGdH0Rcjtyq7QT2zSIhMjhp/xBrBZYmhSqmGqqnjXU6WiwQBxR 0Cye4s3kIS9wMrLpy3ruutyvam1FfuP2RNEf6SYChi5j0ki+jlnkQAGSCSmeT8XFeV0E7DAJK VLQqrsw+iCQFM0MiyajJzPblmR2Hy/T6gbvSd+oBuwQm7wCN1F0JiU5SuNW62Q0bh3BIEixx7 tRAbish/gBX5SNHH0LbAogVruZIZVNxH6SDre6chMkCunqjLbpol8a5YCe3WCac4Tq9Qhx5Gr LYiwMACIGghylfmyQfo4i7Y7C+Qtvm2Veoe9nnqL02oN/LanvOum7L4X230eBk+uxqSrdWlD/ 0lHFz3/hofbVMhaSgU2nNx8T2RFFYnSuMQua7SoQi2vVVB2+zMVVbt3Ekv5kCsrxfIdlEfu5Y TOlcWL8yYWI8T+bf/rqVgbsB/ds+nMUDZ2qfLXa5eXuf42ERLCWGH9gEMQhLFfdtJuNjeWkjX ApdO0yHOAwcCE/FGkIX1mSQv8RQu2IItyWZXsWXK35GiEKnMVl0zS/Dx5Pe7xLRKd8bxyc5uz HfBqP0nhDd9IO6e3Pz/AVGkqxaqZoZGDFBTCCuU5fnBHL5XyzMZkglcFba6zgJn34uUCNm7fD CQ7csgJ0c0NtjoVcciuDStQ7jfzu3PLHCGbwbSfSgoyZkU9IcQ= Subject: Re: [Make-wifi-fast] Flent test hardware X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Nov 2017 15:06:25 -0000 Hi Pete, I like = https://www.amazon.de/HP-ProLiant-MicroServer-G1610T-SATA-Server/dp/B013UB= CHVU/ref=3Dsr_1_1?ie=3DUTF8&qid=3D1509807007&sr=3D8-1&keywords=3Dhp+prolia= nt+microserver+gen8 quite a lot. It comes with 2 ethernet controllers and ports 03:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5720 = Gigabit Ethernet PCIe 03:00.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5720 = Gigabit Ethernet PCIe as far as I can tell these support BQL, but I am not 100% sure... and will also allow to replace the slightly anemic celeron with a xeon = or an i3 or i5, at around 211EUR still a good catch, but a bit on the = high side of your list, but it comes with 4GB ecc memory already... Best Regards > On Nov 4, 2017, at 14:33, Pete Heist wrote: >=20 > My Flent test rig needs a refresh. I currently use two Mac Minis. The = Intel with the Core 2 Duo P7550 and forcedeth Ethernet is OK, so I could = possibly keep it (but no BQL support which is not ideal for some tests), = but it=E2=80=99s time for my G4 Mini with 100 Mbit Ethernet and = stratospheric clock drift to go. >=20 > So I=E2=80=99m searching for one or two low-cost Flent devices (client = or server- which needs more CPU by the way?). Requirements: >=20 > - Gigabit Ethernet (1x ok, 2x better) with a reliable Linux driver = with BQL support > - PTP timestamp support (http://linuxptp.sourceforge.net), hardware = preferable > - enough CPU to accurately do Flent=E2=80=99s higher flow count tests = like rrul_torrent or rrul_be_nflows with 64 flows (sometimes I also do = these together with one or more instances of rrul_be to test host = fairness) >=20 > I started a spreadsheet of what I=E2=80=99ve found so far here in = Czech: >=20 > = https://docs.google.com/spreadsheets/d/1MVxGsreiGKNXhfkMIheNFrH_GVllFfiH9R= U5ws5l_aY/edit?usp=3Dsharing >=20 > I=E2=80=99m leaning towards either one of the low-end Intel NUCs or = GIGABYTE BRIX mini PCs, to which I=E2=80=99d add some memory and = storage. But so many of these low-end devices come with Realtek Ethernet = (r8169 driver?). I=E2=80=99m not sure how stable that driver is, if the = BQL support is usable = (https://www.bufferbloat.net/projects/bloat/wiki/BQL_enabled_drivers/), = and I=E2=80=99d have to settle for software timestamp support for PTP. = With a higher budget, I might go for a 1U server with well-supported = Intel NICs, something like described in this setup = (http://www.academia.edu/10312557/DEVELOPING_LOW-COST_NTP_STRATUM_1_SERVER= S_WITH_LINUX_PTP_AND_GPS). But I can=E2=80=99t seem to find those = cheaply (even <$1000) here. >=20 > Any thoughts or ideas on this? >=20 > _______________________________________________ > Make-wifi-fast mailing list > Make-wifi-fast@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/make-wifi-fast