From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 266293B2A4 for ; Tue, 1 Nov 2022 18:09:30 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1667340559; bh=Op+gNv0jIctnITAhIUTDeeOWMMV0eQoTYyxRwkyN7yQ=; h=X-UI-Sender-Class:Date:From:To:CC:Subject:In-Reply-To:References; b=ix0WcK4HR+WHVGiC5iszofLO7jcn7aTQRgf92VYZsroKR5UQH7I8zmCoLLRBI5mHT ExQdpDyFDu4bdYRe3k2gZIMqf5b2NNj9hO8TDAdeFyRRA6c/x7KccP6WNKYqS71qHD JA41xvZguq2TseyVtp4Rnty7SxaG5Wj5bxM4WFHWN6wp3eaQRLyCBfJ/aoRy1vfts/ 7F6xLyLubmN1TiZqmz76oNYDqIRNwiUIZCFPz64DEm90AtphncGFVVHXki1kuZ761b kFSDQtRammZjNqq7ToHxBzeJjvaAtINwaqZvFDsrTl6JKYaWZXlN03s6lnWgBZmrpr ZyuV7EXs05/kA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [127.0.0.1] ([77.8.110.154]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MiacH-1pUoVk0qRz-00fmvp; Tue, 01 Nov 2022 23:09:19 +0100 Date: Tue, 01 Nov 2022 23:09:15 +0100 From: Sebastian Moeller To: Christoph Paasch , Christoph Paasch via Rpm , "jf@jonathanfoulkes.com" CC: Rpm User-Agent: K-9 Mail for Android In-Reply-To: References: Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:qvnNvJGq0wzmjo6SZ1T+r3i+aOq/MD1CirxcwarbeK+Whoqm+ko ASbUlv62S4RCxCGaVc1YMV2Sz0zvLY+fc0iO7HcKSulQ3gDSCYPB1MLCSYFVY3AeWh8vEJU ijYH17JGCmF7My0dKJqZujZWwqEO+LRILxmDbYi7kryM/qQV7yKXv2r7YhOMqjr7+CT52vo XrgeBsYvd9YN4tV1kcqww== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:C2VhydIPQwc=;fCyzZ7F9R31PxqIPj8dGfJF2Yp8 pNU5JseI7JE8nHhH3m0GnVxhBVSJNXOiVk6sQ4z8ru/3YXOUubl0MpjwFuT00RlDmAnb073sv 784tpbYVub52/Z/63I2h2u0SPbNy1eFegQSNQZDtMxKdOw2RRtTif0XIWKw+fu5RY6fvWkYZv aKUwTsEHUhVSs+lW50kuDtu7qr6l0SN1amqazPaGuR8L0Rcly1dBymLiBcH50C0eMFd+ObYTC cq5qJdBLi9yC+0BJJjqBprbl2HohNEQ0mIlDBVK5DE8+/ZiNcQ0rcHQh+hcwLgz3ZUgZbyZ/z LW8SLHaTdd9cNumn0aIFwS5oZWWOmeElbnHdOKqtO8/ZnSEZzZcGBh04llov5xiWA+r7FDYQQ 0oBwmMoII3PXGwwcP/7PmNHZVS4WB6DwsHlMsZQHm+f0ikmVUG8IW9HAyqI5B4imIAeEStGze 2y1TClgE+m0ITCi4VFDXKReblPbdbkqqC1lMIhprDmDhVlKjdpbMt+9uwNoZk76W0JSP75Gmt d6CA+Dt5y61JufGiYMOGs2NJa1jVF5us4B1Pz5ehM81l7Z55don0GLwLFNPPdJbhUDD4QvFiq 1ej6ah6gy3vP4ScTxSMZGIimZH9hPtqAss7h0CeAOruZ+JCoFVzgCqKmJvtuxzDZqYOLF1+VI jJBrUD20UX5ktVTviVycuFPtzMjj1/euJ4HmeS9Za1Imt0OFYCEawPGU96dOffxFNCVF4g5d4 4RdrlgYEmT/1XXdOCmp3UHMoIyleeRF3/xlc8RlaLDNHwHdwqRsjzlwfLvZ1VRNPg8dEq2M7M EYEbzGeJ4W574dSUyldtkHLEoYtbhL5noM2Af7pD/4RWfFXigg1gCJvqJ4iwrs9Q97f1r2JaI aLmowVd28lghTxtR5IBX+niJsCeduNrHjBoyHandvriubyMbGHS0u99Ev3s14HhBn74QC9rJz QCMhmQ== Subject: Re: [Rpm] Changes to RPM calculation for MacOS Ventura? X-BeenThere: rpm@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: revolutions per minute - a new metric for measuring responsiveness List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Nov 2022 22:09:30 -0000 Hi Christoph, On 1 November 2022 22:52:21 CET, Christoph Paasch via Rpm wrote: >Hello Jonathan, > >> On Oct 28, 2022, at 2:45 PM, jf--- via Rpm wrote: >>=20 >> Hopefully, Christoph can provide some details on the changes from the p= rior networkQuality test, as we=E2=80=99re seeing some pretty large changes= in results for the latest RPM tests=2E >>=20 >> Where before we=E2=80=99d see results in the >1,500 RPM (and multiple >= 2,000 RPM results) for a DOCSIS 3=2E1 line with QoS enabled (180 down/35 up= ), it now returns peak download RPM of ~600 and ~800 for upload=2E >>=20 >> latest results: >>=20 >> =3D=3D=3D=3D SUMMARY =3D=3D=3D=3D >> Uplink capacity: 25=2E480 Mbps (Accuracy: High) >> Downlink capacity: 137=2E768 Mbps (Accuracy: High) >> Uplink Responsiveness: Medium (385 RPM) (Accuracy: High) >> Downlink Responsiveness: Medium (376 RPM) (Accuracy: High) >> Idle Latency: 43=2E875 milli-seconds (Accuracy: High) >> Interface: en8 >> Uplink bytes transferred: 35=2E015 MB >> Downlink bytes transferred: 154=2E649 MB >> Uplink Flow count: 16 >> Downlink Flow count: 12 >> Start: 10/28/22, 5:12:30 PM >> End: 10/28/22, 5:12:54 PM >> OS Version: Version 13=2E0 (Build 22A380) >>=20 >> Latencies (as monitored via PingPlotter) stay absolutely steady during = these tests, >>=20 >> So unless my ISP coincidentally started having major service issues, I= =E2=80=99m scratching my head as to why=2E >>=20 >> For contrast, the Ookla result is as follows: https://www=2Espeedtest= =2Enet/result/13865976456 with 15ms down, 18ms up loaded latencies=2E > >In Ventura, we started adding the latency on the load-generating connecti= ons to the final RPM-calulcation as well=2E The formula being used is now e= xactly what is in the v01 IETF draft=2E [SM] I have been wondering quietly before whether reporting both inter- an= d intra-load-bearing flow responsiveness would not be a cool option for ver= bose mode? Both IMHO are giving relevant information about a link's usabili= ty under working conditions=2E Regards Sebastian > >Very likely the bottleneck in your network does FQ, and so latency on sep= arate connections is very low, while your load-generating connections are s= till bufferbloated=2E > > >Ookla measures latency only on separate connections, thus will also be he= avily impacted by FQ=2E > > >Does that clarify it? > > >Cheers, >Christoph=20 > > >>=20 >> Further machine details: MacBook Pro 16=E2=80=9D (2019) using a USB-C t= o Ethernet adapter=2E >> I run with full ECN enabled: >> sudo sysctl -w net=2Einet=2Etcp=2Edisable_tcp_heuristics=3D1=20 >>=20 >> sudo sysctl -w net=2Einet=2Etcp=2Eecn_initiate_out=3D1 >>=20 >> sudo sysctl -w net=2Einet=2Etcp=2Eecn_negotiate_in=3D1 >>=20 >> and also with instant ack replies: >>=20 >> sysctl net=2Einet=2Etcp=2Edelayed_ack >> net=2Einet=2Etcp=2Edelayed_ack: 0 >>=20 >> I did try with delayed_ack=3D1, and the results were about the same=2E >>=20 >> Thanks in advance, >>=20 >> Jonathan Foulkes >>=20 >> _______________________________________________ >> Rpm mailing list >> Rpm@lists=2Ebufferbloat=2Enet >> https://lists=2Ebufferbloat=2Enet/listinfo/rpm > --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E