From owner-freebsd-current@FreeBSD.ORG Wed Nov 9 06:28:18 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D2C4B106564A for ; Wed, 9 Nov 2011 06:28:18 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id 52ADC8FC0A for ; Wed, 9 Nov 2011 06:28:18 +0000 (UTC) Received: from ur.gsoft.com.au (Ur.gsoft.com.au [203.31.81.44]) (authenticated bits=0) by cain.gsoft.com.au (8.14.4/8.14.3) with ESMTP id pA96SC9Q095486 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 9 Nov 2011 16:58:17 +1030 (CST) (envelope-from doconnor@gsoft.com.au) Mime-Version: 1.0 (Apple Message framework v1251.1) Content-Type: text/plain; charset=iso-8859-1 From: "Daniel O'Connor" In-Reply-To: Date: Wed, 9 Nov 2011 16:58:11 +1030 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Kurt Touet X-Mailer: Apple Mail (2.1251.1) X-Spam-Score: -4.523 () ALL_TRUSTED,BAYES_00,RP_MATCHES_RCVD X-Scanned-By: MIMEDefang 2.67 on 203.31.81.10 Cc: freebsd-current@freebsd.org, Dan The Man Subject: Re: samba+zfs X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Nov 2011 06:28:18 -0000 On 09/11/2011, at 16:56, Daniel O'Connor wrote: > On 09/11/2011, at 16:29, Kurt Touet wrote: >> Is anyone else seeing problems like this with samba/zfs ? Perhaps >> it's not exclusive to samba, either? >=20 > Yep, I see this too. >=20 > I can get 80-100Mbyte/sec reads out of a single disk but ZFS is (now) = very slow - it reads & writes and much more slowly (10-30MB/sec). >=20 > When the array was fresh it was nice and fast - it is now 68% full and = hasn't been much more full than that (I don't know but am pretty sure it = never reach past 75%). >=20 > The frustrating thing is trying to find some way of measuring what's = actually going on.. I haven't had much luck : Note that this is not restricted to Samba and while the server is not = completely idle it's not doing very much. dd's of large files (spooled backups going to tape) to /dev/null are as = slow as Samba. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C