From owner-freebsd-performance@FreeBSD.ORG Thu Nov 20 10:02:44 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4EEFF16A4D0 for ; Thu, 20 Nov 2003 10:02:44 -0800 (PST) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 396BF43FEC for ; Thu, 20 Nov 2003 10:02:43 -0800 (PST) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (IDENT:brdavis@localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.12.9/8.12.3) with ESMTP id hAKI2ebf014414; Thu, 20 Nov 2003 10:02:40 -0800 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.9/8.12.3/Submit) id hAKI2dxa014413; Thu, 20 Nov 2003 10:02:39 -0800 Date: Thu, 20 Nov 2003 10:02:39 -0800 From: Brooks Davis To: dawnshade Message-ID: <20031120180239.GA5497@Odin.AC.HMC.Edu> References: <13171322518.20031120095558@mail.ru> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="5mCyUwZo2JvN/JJP" Content-Disposition: inline In-Reply-To: <13171322518.20031120095558@mail.ru> User-Agent: Mutt/1.5.4i X-Virus-Scanned: by amavisd-milter (http://amavis.org/) on odin.ac.hmc.edu cc: freebsd-performance@freebsd.org Subject: Re: Stupid question about GBDE X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Nov 2003 18:02:44 -0000 --5mCyUwZo2JvN/JJP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 20, 2003 at 09:55:58AM +0300, dawnshade wrote: > One question: i tuned GEOM encryption on IDE drive, but it works too > slow (as described in paper ~20% of real speed), if i install SCSI > drive (with controller, of course) it will be work faster? > I think that will, but need your opinion to confirm. This is extreamly unlikely. The overhead is due to the encryption not the disk. Eventually, hardware acceleration of AES encryption should help, but that is not integrated into GBE yet. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --5mCyUwZo2JvN/JJP Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE/vQG+XY6L6fI4GtQRAn09AJ0XXQ8VfAuR53A3z5VeAiYTwjFvCACgpIXO UsBJQV+VUifUvMTyvnZDbps= =NPAd -----END PGP SIGNATURE----- --5mCyUwZo2JvN/JJP--