From owner-freebsd-stable@FreeBSD.ORG Fri May 29 09:17:27 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 868C110657B2 for ; Fri, 29 May 2009 09:17:27 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.30]) by mx1.freebsd.org (Postfix) with ESMTP id 3E3438FC14 for ; Fri, 29 May 2009 09:17:27 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: by yw-out-2324.google.com with SMTP id 9so3224433ywe.13 for ; Fri, 29 May 2009 02:17:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=KIj054EfKZ+Sa+8s+2tnFYeXscZy7QYLk2rpFWYdsOU=; b=gesrNhcygNo/hpxxaJeGTkRYIaXydWIBQPYug4V7KfADnEFW3HgZbZKZHvlNu1HePZ 6IYIR+iTBTML47lTJ3+n1Rkp5Ht9VkPmOIJnJEocwG47BdMgVju2POOBS3Kl35aWWE7+ cPFUTmhca6bzEwYBTHFd++iPHMR0JlkkSNc3s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=scl6ALJAKl+8H/mFHe4R0XkCf8dDJrh5uB+SZby41Mx97D5nwAAcWtOaA5iDKeHwA6 f9+cIDJPi4OltXf3NzyUwHCMMRGCUPYuYMnu7zk2aAyV+Rq9WrrJuIEouPji8EymKNJO Ymdn4EjEKx9z55KnPqKfFkK6LliqrelrQeBak= MIME-Version: 1.0 Received: by 10.100.134.16 with SMTP id h16mr3528761and.0.1243588646562; Fri, 29 May 2009 02:17:26 -0700 (PDT) In-Reply-To: References: Date: Fri, 29 May 2009 12:17:26 +0300 Message-ID: From: Dan Naumov To: Pete French Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: ZFS on top of GELI / Intel Atom 330 system X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 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, 29 May 2009 09:17:28 -0000 Ouch, that does indeed sounds quite slow, especially considering that a dual core Athlon 6400 is pretty fast CPU. Have you done any comparison benchmarks between UFS2 with Softupdates and ZFS on the same system? What are the read/write numbers like? Have you done any investigating regarding possible causes of ZFS working so slow on your system? Just wondering if its an ATA chipset problem, a drive problem, a ZFS problem or what... - Dan Naumov On Fri, May 29, 2009 at 12:10 PM, Pete French wrote: >> Is there anyone here using ZFS on top of a GELI-encrypted provider on >> hardware which could be considered "slow" by today's standards? What > > I run a mirrored zpool on top of a pair of 1TB SATA drives - they are > only 7200 rpm so pretty dog slow as far as I'm concerned. The > CPOU is a dual core Athlon 6400, and I am running amd64. The performance > is not brilliant - about 25 meg/second writing a file, and about > 53 meg/second reading it. > > It's a bit dissapointing really - thats a lot slower that I expected > when I built it, especially the write speed. > > -pete. >