From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <wagner@tansi.org>
Received: from mail.saout.de ([127.0.0.1])
 by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024)
 with ESMTP id eM6VPSn6rIPC for <dm-crypt@saout.de>;
 Mon, 18 Mar 2013 00:07:47 +0100 (CET)
Received: from v4.tansi.org (ns.km33513-03.keymachine.de [87.118.94.3])
 by mail.saout.de (Postfix) with ESMTP
 for <dm-crypt@saout.de>; Mon, 18 Mar 2013 00:07:47 +0100 (CET)
Received: from gatewagner.dyndns.org (84-74-164-49.dclient.hispeed.ch
 [84.74.164.49]) by v4.tansi.org (Postfix) with ESMTPA id CC41B1404001
 for <dm-crypt@saout.de>; Mon, 18 Mar 2013 00:07:46 +0100 (CET)
Date: Mon, 18 Mar 2013 00:07:46 +0100
From: Arno Wagner <arno@wagner.name>
Message-ID: <20130317230746.GA15153@tansi.org>
References: <CAFnMBaSjtk+qPOMR=7QH5rvPpWhGG9ba-QwhOExPR587LbRVZw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
In-Reply-To: <CAFnMBaSjtk+qPOMR=7QH5rvPpWhGG9ba-QwhOExPR587LbRVZw@mail.gmail.com>
Subject: Re: [dm-crypt] unusual writing speeds when benchmark speeds are
 high enough
List-Id: <dm-crypt.saout.de>
List-Unsubscribe: <http://www.saout.de/mailman/options/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=unsubscribe>
List-Archive: <http://www.saout.de/pipermail/dm-crypt/>
List-Post: <mailto:dm-crypt@saout.de>
List-Help: <mailto:dm-crypt-request@saout.de?subject=help>
List-Subscribe: <http://www.saout.de/mailman/listinfo/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=subscribe>
To: dm-crypt@saout.de

On Sun, Mar 17, 2013 at 05:36:19PM -0400, .. ink .. wrote:
> Sorry for my previous email without a title,resending the email with a
> title this time.
[...]
> A user of cryptsetup(through zuluCrypt) asked me a question i can not
> answer and asking it here.
>=20
> [root <at> sheep 8] ~ > dd if=3D/dev/zero of=3Dtest.img bs=3D70M count=3D1
> 1+0 Datens=E4tze ein
> 1+0 Datens=E4tze aus
> 73400320 Bytes (73 MB) kopiert, 2,58497 s, 28,4 MB/s
[...]

Is this over USB or on an USB memory-stick? If this is a
regular HDD, something seems to be slowing it down already.

Arno
--=20
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno@wagner.name
GnuPG: ID: CB5D9718  FP: 12D6 C03B 1B30 33BB 13CF  B774 E35C 5FA1 CB5D 9718
----
One of the painful things about our time is that those who feel certainty
are stupid, and those with any imagination and understanding are filled
with doubt and indecision. -- Bertrand Russell