From owner-freebsd-stable@FreeBSD.ORG Fri Jun 27 01:54:46 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7A0DBE17 for ; Fri, 27 Jun 2014 01:54:46 +0000 (UTC) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [IPv6:2607:f3e0:0:1::12]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 425272080 for ; Fri, 27 Jun 2014 01:54:46 +0000 (UTC) Received: from [IPv6:2607:f3e0:0:4:f025:8813:7603:7e4a] (saphire3.sentex.ca [IPv6:2607:f3e0:0:4:f025:8813:7603:7e4a]) by smarthost1.sentex.ca (8.14.9/8.14.9) with ESMTP id s5R1scBP098824; Thu, 26 Jun 2014 21:54:40 -0400 (EDT) (envelope-from mike@sentex.net) Message-ID: <53ACCEE2.5010908@sentex.net> Date: Thu, 26 Jun 2014 21:54:42 -0400 From: Mike Tancsa Organization: Sentex Communications User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Eugene Grosbein Subject: Re: nfs slowdown (RELENG_8) (solved) References: <2091718059.2982836.1403563319620.JavaMail.root@uoguelph.ca> <53A978D1.2000207@sentex.net> <53A987AE.8060708@sentex.net> <53A9DC0D.2000705@sentex.net> <20140625131237.GA82922@rdtc.ru> <53AACFE8.3060509@sentex.net> In-Reply-To: <53AACFE8.3060509@sentex.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.74 Cc: Rick Macklem , FreeBSD-STABLE Mailing List X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jun 2014 01:54:46 -0000 On 6/25/2014 9:34 AM, Mike Tancsa wrote: > On 6/25/2014 9:12 AM, Eugene Grosbein wrote: >> ktrace cat /dev/zero > /nfsbackup/test Adding hw.igb.enable_msix=0 to /boot/loader.conf fixes it. cat /dev/zero is now ~ 600Mb/s. Not the same speed as dd, but a lot better compared to 25Mb ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/