From owner-freebsd-fs@FreeBSD.ORG Wed Nov 28 18:47:49 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 205B8230 for ; Wed, 28 Nov 2012 18:47:49 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) by mx1.freebsd.org (Postfix) with ESMTP id 8DB918FC15 for ; Wed, 28 Nov 2012 18:47:46 +0000 (UTC) Received: by mail-lb0-f182.google.com with SMTP id go10so10803078lbb.13 for ; Wed, 28 Nov 2012 10:47:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=UTL9/Zy6B5gfKMHri9oaTqCAPmJjU3fHhvpqi9so8CU=; b=G2jQ5TjQHwhkAQ3eZX3rxgFiCB6iM4U4I8txyGEOQqtZKWzW+T7VwcVClAMj5FQ9p2 KG5/gsMUARoa1gbAH7QZljuEOiQ5ttqTW/rF6KiK/iAP0LxwQxU35KNWeKcx9kUIHfi+ pdnStT/Hce5fG1aBappIlAiZrRBoim5eECPjbs3q7cwvwWCIgIOu2V1lOlvPxkIXnoDh 2iN9T5gEnZm6x1UOu6PNdwM2AHGDjEJowousS6236BAUOQbVNecJXeayaLkWILOMHgW8 dD7xcOfEQeewGjSQAqaOW6O8tEJPoKZF/+ZDtWxBk80Tk/FP2iC6SFrGFJZGDao935Yf F54g== MIME-Version: 1.0 Received: by 10.152.114.100 with SMTP id jf4mr19226084lab.47.1354128465550; Wed, 28 Nov 2012 10:47:45 -0800 (PST) Received: by 10.112.61.33 with HTTP; Wed, 28 Nov 2012 10:47:45 -0800 (PST) In-Reply-To: References: Date: Wed, 28 Nov 2012 13:47:45 -0500 Message-ID: Subject: Re: Performance Difference on UFS and ZFS From: Zaphod Beeblebrox To: =?UTF-8?B?TWV0aW4gRMO2xZ9sw7w=?= Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Nov 2012 18:47:49 -0000 On Wed, Nov 28, 2012 at 10:54 AM, Metin D=C3=B6=C5=9Fl=C3=BC wrote: > I tested it on a cc1.4xlarge EC2 instance, here is the specs: > 23 GiB of memory > 33.5 EC2 Compute Units (2 x Intel Xeon X5570, quad-core =E2=80=9CNehalem= =E2=80=9D architecture) > 1690 GB of instance storage > 64-bit platform I suppose the first _enormous_ question is whether this is true for real hardware rather than just virtual.