[dm-crypt] LUKS & TrueCrypt - Speed Test

Jorge Fábregas jorge.fabregas at gmail.com
Fri Jul 29 01:58:58 CEST 2011

On 07/27/2011 07:18 PM, Jorge Fábregas 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

Cheers and thank your for the feedback!

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