From owner-freebsd-net@FreeBSD.ORG Sat Apr 14 19:37:23 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5DEBE106564A for ; Sat, 14 Apr 2012 19:37:23 +0000 (UTC) (envelope-from yuri@rawbw.com) Received: from shell0.rawbw.com (shell0.rawbw.com [198.144.192.45]) by mx1.freebsd.org (Postfix) with ESMTP id 41F0A8FC08 for ; Sat, 14 Apr 2012 19:37:23 +0000 (UTC) Received: from eagle.yuri.org (stunnel@localhost [127.0.0.1]) (authenticated bits=0) by shell0.rawbw.com (8.14.4/8.14.4) with ESMTP id q3EJbMaB037846; Sat, 14 Apr 2012 12:37:22 -0700 (PDT) (envelope-from yuri@rawbw.com) Message-ID: <4F89D1F2.3080009@rawbw.com> Date: Sat, 14 Apr 2012 12:37:22 -0700 From: Yuri User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:10.0.3) Gecko/20120316 Thunderbird/10.0.3 MIME-Version: 1.0 To: Jason Leschnik References: <4F89C005.2020304@rawbw.com> <4F89CE37.1070706@rawbw.com> <4F89CFC1.80306@rawbw.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Why host transmit rate on 1Gb ethernet is only ~750Mbps ? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 14 Apr 2012 19:37:23 -0000 On 04/14/2012 12:32, Jason Leschnik wrote: > What kind of load are you looking at when running the test? > > maybe output `vmstat 1 15` during a test run Here is the log during the test run on the sending side: # vmstat 1 15 procs memory page disks faults cpu r b w avm fre flt re pi po fr sr md0 ad0 in sy cs us sy id 0 9 17 32481M 1312M 3155 1 6 0 3263 430 0 0 1163 11537 6958 4 1 95 1 9 17 32507M 1312M 283 0 0 0 55 0 0 0 2354 163960 8891 5 4 91 1 9 17 32507M 1312M 4 0 0 0 0 0 0 0 5427 156936 15139 5 3 92 0 9 17 32507M 1312M 3436 0 0 0 2380 0 0 0 5412 211755 16386 7 4 89 0 9 17 32507M 1312M 4 0 0 0 0 0 0 0 5418 151530 15159 5 3 92 1 9 17 32495M 1321M 5 0 0 0 2380 0 0 0 5411 145787 15047 4 3 93 1 9 17 32495M 1321M 4 0 0 0 0 0 0 0 5492 147687 15451 4 3 93 0 9 17 32495M 1321M 4 0 0 0 0 0 0 0 5441 145666 15155 4 3 92 0 9 17 32495M 1321M 600 0 0 0 0 0 0 0 5418 147173 15361 4 2 93 0 9 17 32495M 1321M 7 0 0 0 0 0 0 0 5428 145410 15122 4 3 93 0 9 17 32495M 1321M 4 0 0 0 0 0 0 0 5427 146896 15175 4 3 93 1 9 17 32481M 1312M 2402 0 0 0 399 0 0 51 2629 128751 9712 4 2 93 Yuri