From owner-freebsd-stable@FreeBSD.ORG Wed Mar 7 15:55:12 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 56CC11065672 for ; Wed, 7 Mar 2012 15:55:12 +0000 (UTC) (envelope-from freebsd@damnhippie.dyndns.org) Received: from qmta02.emeryville.ca.mail.comcast.net (qmta02.emeryville.ca.mail.comcast.net [76.96.30.24]) by mx1.freebsd.org (Postfix) with ESMTP id 318778FC0A for ; Wed, 7 Mar 2012 15:55:11 +0000 (UTC) Received: from omta23.emeryville.ca.mail.comcast.net ([76.96.30.90]) by qmta02.emeryville.ca.mail.comcast.net with comcast id ie5j1i0041wfjNsA2fv5oS; Wed, 07 Mar 2012 15:55:05 +0000 Received: from damnhippie.dyndns.org ([24.8.232.202]) by omta23.emeryville.ca.mail.comcast.net with comcast id ifv41i0014NgCEG8jfv4K4; Wed, 07 Mar 2012 15:55:05 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id q27Ft2gl016275; Wed, 7 Mar 2012 08:55:02 -0700 (MST) (envelope-from freebsd@damnhippie.dyndns.org) From: Ian Lepore To: Karl Denninger In-Reply-To: <4F577A24.9030307@denninger.net> References: <4F577A24.9030307@denninger.net> Content-Type: text/plain; charset="us-ascii" Date: Wed, 07 Mar 2012 08:55:02 -0700 Message-ID: <1331135702.32194.23.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: Xeon Processors with AES instructions and geli encryption 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: Wed, 07 Mar 2012 15:55:12 -0000 On Wed, 2012-03-07 at 09:09 -0600, Karl Denninger wrote: > Does the crypto(9) framework recognize and use these instructions? > Looks like the Windmere-series Xeons will drop into my system boards; I > gain two cores per CPU at the same time, so I'll go from an 8-way SMP > system to a 12-way one. > > I am considering spending the money to upgrade a couple of servers here > that run geli-encrypted disks, as during heavy I/O they spend a LOT of > their CPU time on the disk encryption. The differences I see in the use > of TrueCrypt on Windows machines that have AES instructions .vs. those > that do not are very significant and I'm curious if this carries over to > FreeBSD. > > Thanks in advance! > It looks like it does as of 8.2 when the aesni driver was added. -- Ian