From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 1B1C71381F4 for ; Mon, 13 Aug 2012 12:56:52 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 68245E0790; Mon, 13 Aug 2012 12:56:33 +0000 (UTC) Received: from smtp.cs.nyu.edu (SMTP.CS.NYU.EDU [128.122.49.97]) by pigeon.gentoo.org (Postfix) with ESMTP id D8F0921C020 for ; Mon, 13 Aug 2012 12:54:48 +0000 (UTC) Received: from ajglap.localdomain (ool-182de1a5.dyn.optonline.net [24.45.225.165]) (authenticated bits=0) by smtp.cs.nyu.edu (8.14.3/8.14.4) with ESMTP id q7DCsmuu004785 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Mon, 13 Aug 2012 08:54:48 -0400 (EDT) Received: by ajglap.localdomain (Postfix, from userid 1502) id 32D6B70076; Mon, 13 Aug 2012 08:52:31 -0400 (EDT) From: Allan Gottlieb To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] new installation (ssd, new udev, grub2) References: <20120810212213.0ce6e810@khamul.example.com> <20120812214412.26b20e2e@khamul.example.com> Date: Mon, 13 Aug 2012 08:52:31 -0400 In-Reply-To: <20120812214412.26b20e2e@khamul.example.com> (Alan McKinnon's message of "Sun, 12 Aug 2012 21:44:12 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain X-Archives-Salt: cc5ba296-d731-48a2-b862-455d6bc9e4db X-Archives-Hash: e51e03012169c31c630385d1c39dcd59 On Sun, Aug 12 2012, Alan McKinnon wrote: > On Sun, 12 Aug 2012 14:11:37 -0400 > Allan Gottlieb wrote: > >> On Fri, Aug 10 2012, Alan McKinnon wrote: >> >> > You also don't need an IO scheduler - ssd access is random like >> > RAM, no heads moving in and out so no sector ordering to worry >> > about. Configure the scheduler as NOOP in kernel config if all >> > drives are ssd's >> >> I believe dell with be "throwing in" a removable spinning disk that >> can be user swapped with the dvd so I should probably keep the I/O >> scheduler. > > You can set the scheduler per-device too, more info here: > > https://wiki.archlinux.org/index.php/Solid_State_Drives#I.2FO_Scheduler > > Someone else reported though that Deadline scheduler can actually > performs better, I also read that somewhere. Maybe you should do some > initial tests yourself before deciding Yes, that sounds like a good idea and the article you just mentioned looks to be quite helpful. thanks, allan