From owner-freebsd-current@FreeBSD.ORG Wed Nov 9 07:07:45 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 BE582106566B for ; Wed, 9 Nov 2011 07:07:45 +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 3BA778FC0C for ; Wed, 9 Nov 2011 07:07:44 +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 pA977cJa001457 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 9 Nov 2011 17:37:43 +1030 (CST) (envelope-from doconnor@gsoft.com.au) Mime-Version: 1.0 (Apple Message framework v1251.1) Content-Type: text/plain; charset=windows-1252 From: "Daniel O'Connor" In-Reply-To: Date: Wed, 9 Nov 2011 17:37:38 +1030 Content-Transfer-Encoding: quoted-printable Message-Id: <82C85C01-62C4-4E75-B3F2-59D703CA5D78@gsoft.com.au> References: To: Garrett Cooper 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: Kurt Touet , 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 07:07:45 -0000 On 09/11/2011, at 17:32, Garrett Cooper wrote >> dd's of large files (spooled backups going to tape) to /dev/null are = as slow as Samba. >=20 > - Dedupe? Nope. > - Compression? On the mail spool & ports, but not on the tape spool. > - How much RAM? 8GB. > - What debug options do you have enabled in the kernel? It is 8.2-GENERIC so.. no WITNESS (for example) > I've been noticing a slowdown in some respects with NFS/SMB, but I > suspected it was because I have an re(4) based NIC. ZFS has also wired > down a lot of my system memory for the L2ARC=85 re isn't great but I wouldn't expect it to slow down over time.. Unless = bounce buffers got used more and more or something. I have an em0 card in this system - but in any case it is slow locally = (i.e. dd a large file with 64k block size). -- 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