From owner-freebsd-ia64@FreeBSD.ORG Thu Jul 19 15:14:15 2012 Return-Path: Delivered-To: freebsd-ia64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F397A106564A; Thu, 19 Jul 2012 15:14:14 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from dirg.bris.ac.uk (dirg.bris.ac.uk [137.222.10.102]) by mx1.freebsd.org (Postfix) with ESMTP id ACA698FC0C; Thu, 19 Jul 2012 15:14:14 +0000 (UTC) Received: from ncsd.bris.ac.uk ([137.222.10.59] helo=ncs.bris.ac.uk) by dirg.bris.ac.uk with esmtp (Exim 4.72) (envelope-from ) id 1SrsQY-0001kz-Qp; Thu, 19 Jul 2012 16:14:08 +0100 Received: from mech-cluster241.men.bris.ac.uk ([137.222.187.241]) by ncs.bris.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1SrsQY-0001RE-Mp; Thu, 19 Jul 2012 16:14:06 +0100 Received: from mech-cluster241.men.bris.ac.uk (localhost [127.0.0.1]) by mech-cluster241.men.bris.ac.uk (8.14.5/8.14.5) with ESMTP id q6JFE6i3083699; Thu, 19 Jul 2012 16:14:06 +0100 (BST) (envelope-from mexas@bristol.ac.uk) Received: (from mexas@localhost) by mech-cluster241.men.bris.ac.uk (8.14.5/8.14.5/Submit) id q6JFE6FU083698; Thu, 19 Jul 2012 16:14:06 +0100 (BST) (envelope-from mexas@bristol.ac.uk) X-Authentication-Warning: mech-cluster241.men.bris.ac.uk: mexas set sender to mexas@bristol.ac.uk using -f Date: Thu, 19 Jul 2012 16:14:06 +0100 From: Anton Shterenlikht To: freebsd-questions@freebsd.org, freebsd-ia64@freebsd.org Message-ID: <20120719151406.GA83677@mech-cluster241.men.bris.ac.uk> Mail-Followup-To: freebsd-questions@freebsd.org, freebsd-ia64@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Cc: Subject: zfs tuning on ia64 X-BeenThere: freebsd-ia64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the IA-64 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Jul 2012 15:14:15 -0000 Most of http://wiki.freebsd.org/ZFSTuningGuide is for i386 and amd64. I'm using zfs on ia64 r238540. Not sure how much of the advice given apply in my case. I have: # grep ZFS /var/run/dmesg.boot ZFS filesystem version: 5 ZFS storage pool version: features support (5000) # zpool upgrade -v |tail 23 Slim ZIL 24 System attributes 25 Improved scrub stats 26 Improved snapshot deletion performance 27 Improved snapshot creation performance 28 Multiple vdev replacements For more information on a particular version, including supported releases, see the ZFS Administration Guide. # zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT tank 33.8G 148K 33.7G 0% 1.00x ONLINE - # zpool status pool: tank state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 da1 ONLINE 0 0 0 da2 ONLINE 0 0 0 errors: No known data errors # # dmesg|grep memory real memory = 6442450944 (6144 MB) avail memory = 6279823360 (5988 MB) # sysctl -a |grep vm.kmem vm.kmem_map_free: 1551581184 vm.kmem_map_size: 26427392 vm.kmem_size_scale: 4 vm.kmem_size_max: 0 vm.kmem_size_min: 0 vm.kmem_size: 1578090496 # Do the vm.kmem tunables look reasonable? Thanks -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423