From owner-freebsd-net@freebsd.org  Mon Jun 29 13:25:05 2015
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A326E98F7F3
 for <freebsd-net@mailman.ysv.freebsd.org>;
 Mon, 29 Jun 2015 13:25:05 +0000 (UTC) (envelope-from mike@sentex.net)
Received: from smarthost1.sentex.ca (smarthost1.sentex.ca
 [IPv6:2607:f3e0:0:1::12])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 622F31BDC
 for <freebsd-net@freebsd.org>; Mon, 29 Jun 2015 13:25:05 +0000 (UTC)
 (envelope-from mike@sentex.net)
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 t5TDP0hM002076;
 Mon, 29 Jun 2015 09:25:00 -0400 (EDT) (envelope-from mike@sentex.net)
Message-ID: <55914715.5090001@sentex.net>
Date: Mon, 29 Jun 2015 09:24:37 -0400
From: Mike Tancsa <mike@sentex.net>
Organization: Sentex Communications
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64;
 rv:31.0) Gecko/20100101 Thunderbird/31.7.0
MIME-Version: 1.0
To: Rick Macklem <rmacklem@uoguelph.ca>, =?windows-1252?Q?Gerrit_K=FChn?=
 <gerrit.kuehn@aei.mpg.de>
CC: freebsd-net@freebsd.org, Scott Larson <stl@wiredrive.com>,
 carsten aulbert <carsten.aulbert@aei.mpg.de>
Subject: Re: NFS on 10G interface terribly slow
References: <20150625145238.12cf9da3b368ef0b9a30f193@aei.mpg.de>
 <CAFt8naF7xmZW8bgVrhrL=CaPXiVURqDLsNN5-NHDg=hiv-Qmtw@mail.gmail.com>
 <1629011632.413406.1435365728977.JavaMail.zimbra@uoguelph.ca>
 <20150629091958.af9720d478a8903ab28adc1d@aei.mpg.de>
 <1467277373.898391.1435580412070.JavaMail.zimbra@uoguelph.ca>
In-Reply-To: <1467277373.898391.1435580412070.JavaMail.zimbra@uoguelph.ca>
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
X-Scanned-By: MIMEDefang 2.75
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 29 Jun 2015 13:25:05 -0000

On 6/29/2015 8:20 AM, Rick Macklem wrote:
> If the Solaris server is using ZFS, setting sync=disabled might help w.r.t.

On my FreeBSD zfs server, this is a must for decent and consistent write
throughput.  Using FreeBSD as an iSCSI target and a Linux initiator, I
can saturate a 1G nic no problem with sync disabled. Its barely usable
with the default sync standard as its so bursty

	---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/