From owner-freebsd-questions@FreeBSD.ORG Sun Jul 29 11:39:22 2012 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8050D106566B for ; Sun, 29 Jul 2012 11:39:22 +0000 (UTC) (envelope-from erichfreebsdlist@ovitrap.com) Received: from alogreentechnologies.com (alogreentechnologies.com [67.212.224.110]) by mx1.freebsd.org (Postfix) with ESMTP id 225C08FC17 for ; Sun, 29 Jul 2012 11:39:22 +0000 (UTC) Received: from AMD620.ovitrap.com ([49.128.188.2]) (authenticated bits=0) by alogreentechnologies.com (8.13.1/8.13.1) with ESMTP id q6TBd6EW030929; Sun, 29 Jul 2012 05:39:12 -0600 Date: Sun, 29 Jul 2012 18:41:38 +0700 From: Erich Dollansky To: Wojciech Puchar Message-ID: <20120729184138.1bae7d81@AMD620.ovitrap.com> In-Reply-To: References: <20120729064846.3bc37892@AMD620.ovitrap.com> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.6; amd64-portbld-freebsd10.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: questions@freebsd.org, Vladimir Videscu Subject: Re: FreeBSD on SSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Jul 2012 11:39:22 -0000 Hi, On Sun, 29 Jul 2012 13:05:10 +0200 (CEST) Wojciech Puchar wrote: > > > > You will have to read afterwards the same 8GB over and over again to > > make the drive believe that you want to have these 8GB faster. > > and do it randomly. disk is for sure smart enough to not cache long > linear reads . > > > > > How to make sure that the data is really cached? > > There is no way. > true. > > That's why i don't like such solution. And such drive is very > expensive. > past tense. When I was shopping last month I saw a significant drop in the price of these drives. I would have bought one if its height would have been 7mm. I do not know if it was mistake by the dealer or what else caused the sudden drop. Erich