[dm-crypt] LUKS & TrueCrypt - Speed Test

Roscoe eocsor at gmail.com
Fri Jul 29 11:52:26 CEST 2011


Hey Jorge,

If you're in the benchmarking mood and have a modern CPU...Different ciphers
would be interesting :)

A short script that given a block device would try a variety of ciphers [and
no encryption too] and print the results in a nice format would be neat.

-- Roscoe

On Fri, Jul 29, 2011 at 3:20 PM, Arno Wagner <arno at wagner.name> wrote:

> Hi Jorge,
>
> you can see that running the test several times gives you some
> appreciation for the variation in the measurement. Anyways,
> this is what I would expect, i.e. TrueCrypt having a little
> bit lower speed due to the userspace interface.
>
> Thanks for posting these!
>
> Arno
>
>
> On Thu, Jul 28, 2011 at 07:58:58PM -0400, Jorge F?bregas wrote:
> > On 07/27/2011 07:18 PM, Jorge F?bregas wrote:
> > > I decided to perform some tests on my Fedora 14 box.   This is not a
> > > pro benchmark so be warned :)
> >
> > Hi everyone,
> >
> > I performed the tests again (twice for each test) but this time I
> > formatted the LUKS partition using:
> >
> > cryptsetup luksFormat -c aes-xts-plain -s 256 -h ripemd160 /dev/sdd1
> >
> > ...so that I was more _similar_ to the TrueCrypt setup.  Also, between
> > each test I run:
> >
> > echo 3 > /proc/sys/vm/drop_caches
> >
> > Here are the new results for the same payload (143 GB of data):
> >
> > ### TRUECRYPT ####
> >
> > 1st round:
> > real  105m39.547s
> > user  28m17.667s
> > sys   42m25.300s
> >
> >
> > 2nd round:
> > real  105m40.271s
> > user  28m21.893s
> > sys   42m19.672s
> >
> >
> > ### LUKS ###
> >
> > 1st round:
> > real  104m33.901s
> > user  27m41.362s
> > sys   41m0.339s
> >
> >
> > 2nd round:
> > real  104m44.913s
> > user  27m42.364s
> > sys   40m57.655s
> >
> >
> > Now as you may see, LUKS is roughly around 1 minute ahead (sytem-time)
> > compared to TrueCrypt.  It appears the change in cipher operation mode
> > definitely affected the results (thing I should have done on the first
> > place).
> >
> > Cheers and thank your for the feedback!
> > Jorge
> > _______________________________________________
> > dm-crypt mailing list
> > dm-crypt at saout.de
> > http://www.saout.de/mailman/listinfo/dm-crypt
> >
>
> --
> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email:
> arno at wagner.name
> GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25
> 338F
> ----
> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
>
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> "news" is "something that hardly ever happens." -- Bruce Schneier
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