From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [IPv6:2001:67c:29f4::29]) (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 463E03B2A0 for ; Sat, 3 Dec 2016 17:13:42 -0500 (EST) Received: from pannekake.samfundet.no ([2001:67c:29f4::50] ident=unknown) by cassarossa.samfundet.no with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1cDIYs-0001NF-Ba; Sat, 03 Dec 2016 23:13:38 +0100 Received: from sesse by pannekake.samfundet.no with local (Exim 4.84_2) (envelope-from ) id 1cDIYs-0009Gt-8f; Sat, 03 Dec 2016 23:13:38 +0100 Date: Sat, 3 Dec 2016 23:13:38 +0100 From: "Steinar H. Gunderson" To: Eric Dumazet Cc: Jonathan Morton , Neal Cardwell , "aqm@ietf.org" , bloat Message-ID: <20161203221338.GC38041@sesse.net> References: <20161202224006.GA5065@sesse.net> <1480721486.18162.392.camel@edumazet-glaptop3.roam.corp.google.com> <20161203191353.GA972@sesse.net> <1480796415.18162.408.camel@edumazet-glaptop3.roam.corp.google.com> <9A821B94-143B-446F-8852-2EB0158DD57C@gmail.com> <1480799260.18162.418.camel@edumazet-glaptop3.roam.corp.google.com> <20161203213428.GB38041@sesse.net> <1480801837.18162.419.camel@edumazet-glaptop3.roam.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1480801837.18162.419.camel@edumazet-glaptop3.roam.corp.google.com> X-Operating-System: Linux 4.9.0-rc2 on a x86_64 User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [Bloat] TCP BBR paper is now generally available X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Dec 2016 22:13:42 -0000 On Sat, Dec 03, 2016 at 01:50:37PM -0800, Eric Dumazet wrote: >> Note, the tcpdump is done at the receiver. I don't know if this changes the >> analysis. > If you have access to the receiver, I would be interested to know > NIC/driver used there ? root@blackhole:~# lspci | grep Ethernet 01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection root@blackhole:~# lspci -n | grep 01:00.0 01:00.0 0200: 8086:10d3 root@blackhole:~# ls -l /sys/class/net/eth0/device/driver lrwxrwxrwx 1 root root 0 des. 3 23:17 /sys/class/net/eth0/device/driver -> ../../../../bus/pci/drivers/e1000e root@blackhole:~# uname -a Linux blackhole 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux Do note, both eth0 and eth1 are a bridge, although only one of the cards are actually connected to anything (it's just so the remote hands can connect to any port and things will come up fine). /* Steinar */ -- Homepage: https://www.sesse.net/