From owner-freebsd-current@freebsd.org Mon Oct 19 22:38:18 2015 Return-Path: Delivered-To: freebsd-current@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 5E119A19F14 for ; Mon, 19 Oct 2015 22:38:18 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "gold.funkthat.com", Issuer "gold.funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 1EA46280; Mon, 19 Oct 2015 22:38:17 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.14.5/8.14.5) with ESMTP id t9JMcEgQ011166 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 19 Oct 2015 15:38:14 -0700 (PDT) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.14.5/8.14.5/Submit) id t9JMcDHQ011165; Mon, 19 Oct 2015 15:38:13 -0700 (PDT) (envelope-from jmg) Date: Mon, 19 Oct 2015 15:38:13 -0700 From: John-Mark Gurney To: Ed Maste Cc: "O. Hartmann" , "Julian H. Stacey" , Yonas Yanfa , FreeBSD Current Subject: Re: Depreciate and remove gbde Message-ID: <20151019223813.GH65715@funkthat.com> References: <56237623.5010702@fizk.net> <201510182329.t9INTarc018248@fire.js.berklix.net> <20151019061930.461285f8@freyja.zeit4.iv.bundesimmobilien.de> <20151019205008.GG65715@funkthat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: FreeBSD 9.1-PRERELEASE amd64 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.5.21 (2010-09-15) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (gold.funkthat.com [127.0.0.1]); Mon, 19 Oct 2015 15:38:14 -0700 (PDT) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Oct 2015 22:38:18 -0000 Ed Maste wrote this message on Mon, Oct 19, 2015 at 17:13 -0400: > On 19 October 2015 at 16:50, John-Mark Gurney wrote: > > O. Hartmann wrote this message on Mon, Oct 19, 2015 at 06:19 +0200: > >> For me, I'd like to know what is the benefit/performance of each technique and > >> a clear preparation of each ones advantages over the other. That would make the > >> decission process much easier and hopefully would not scare people away and > >> announce "FreeBSD does not have a, b, c, ..." ... > > > > So, one thing that the docs talk about is that geli uses the crypto(9) > > framework. This doesn't mean much on it's own, but if you have a machine > > with AES-NI instructions or an accelerator card that supports the cipher > > mode used, then you can get faster performance of hardware off load, > > while gbde uses the software only routines which are slow.. > > John-Mark, thanks for listing these differences. This is the sort of > information we should have available for end users to help choose one > or the other -- this info ought to make it into the handbook. I'm working on updating the section now... Also realized we should include verbage to say that it's best to use page size sectors when possible to reduce overhead of the crypto... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."