From owner-freebsd-stable@freebsd.org Thu Feb 11 07:58:24 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 91F50AA5F28 for ; Thu, 11 Feb 2016 07:58:24 +0000 (UTC) (envelope-from hausen@punkt.de) Received: from kagate.punkt.de (kagate.punkt.de [217.29.33.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 348EB1A4 for ; Thu, 11 Feb 2016 07:58:23 +0000 (UTC) (envelope-from hausen@punkt.de) Received: from hugo10.ka.punkt.de (hugo10.ka.punkt.de [217.29.44.10]) by gate2.intern.punkt.de with ESMTP id u1B7wF0K089223 for ; Thu, 11 Feb 2016 08:58:15 +0100 (CET) Received: from [217.29.44.208] ([217.29.44.208]) by hugo10.ka.punkt.de (8.14.2/8.14.2) with ESMTP id u1B7wFlo060002 for ; Thu, 11 Feb 2016 08:58:15 +0100 (CET) (envelope-from hausen@punkt.de) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: Best practices for ZFS setup for a strictly SSD based system? From: "Patrick M. Hausen" In-Reply-To: Date: Thu, 11 Feb 2016 08:58:15 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <4D656008-1E48-46CF-A799-1C90777EAAF1@punkt.de> References: <2D296837-3B06-4E72-B8B0-A33AE6CE48AE@punkt.de> To: freebsd-stable X-Mailer: Apple Mail (2.3112) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Feb 2016 07:58:24 -0000 Hi, all, > Am 10.02.2016 um 11:15 schrieb krad : >=20 > Dont forget alignment and ashift. You may also want to test = compression as well. IF you have spare cpu cycles I would imagine the = systems cpu will handle it faster than any onboard ssd compression. = Benchmarking would be of use here though. Correct. Just for the record: since 10.2 the FreeBSD installer does the = right thing [tm]. ashift=3D12 and partitions are 1M aligned. Patrick --=20 punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe Tel. 0721 9109 0 * Fax 0721 9109 100 info@punkt.de http://www.punkt.de Gf: J=C3=BCrgen Egeling AG Mannheim 108285