Date: Mon, 19 Oct 2015 15:38:13 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Ed Maste <emaste@freebsd.org> Cc: "O. Hartmann" <ohartman@zedat.fu-berlin.de>, "Julian H. Stacey" <jhs@berklix.com>, Yonas Yanfa <yonas@fizk.net>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Depreciate and remove gbde Message-ID: <20151019223813.GH65715@funkthat.com> In-Reply-To: <CAPyFy2CLp=n900Yb5QhoVOd7L%2BzsvcdjwxLBxmjEbEBuvv2r6Q@mail.gmail.com> References: <56237623.5010702@fizk.net> <201510182329.t9INTarc018248@fire.js.berklix.net> <20151019061930.461285f8@freyja.zeit4.iv.bundesimmobilien.de> <20151019205008.GG65715@funkthat.com> <CAPyFy2CLp=n900Yb5QhoVOd7L%2BzsvcdjwxLBxmjEbEBuvv2r6Q@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Ed Maste wrote this message on Mon, Oct 19, 2015 at 17:13 -0400:
> On 19 October 2015 at 16:50, John-Mark Gurney <jmg@funkthat.com> 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."
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20151019223813.GH65715>