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Date: Sun, 8 Apr 2012 19:56:25 -0600
From: Stephen John Smoogen <smooge@...il.com>
To: john-users <john-users@...ts.openwall.com>
Subject: Speed on Trimslice ARM
A while ago some people were wondering about speeds of JTR on ARM so I
figured I would post the numbers I got on a TrimSlice PRO (which is a
Tegra style Arm)
[root@...ora-arm ~]# john --test
Created directory: /root/.john
Benchmarking: Traditional DES [32/32 BS]... DONE
Many salts: 144427 c/s real, 144427 c/s virtual
Only one salt: 137785 c/s real, 137604 c/s virtual
Benchmarking: BSDI DES (x725) [32/32 BS]... DONE
Many salts: 4284 c/s real, 4284 c/s virtual
Only one salt: 4240 c/s real, 4240 c/s virtual
Benchmarking: FreeBSD MD5 [32/32 X2]... DONE
Raw: 2326 c/s real, 2326 c/s virtual
Benchmarking: OpenBSD Blowfish (x32) [32/32]... DONE
Raw: 121 c/s real, 121 c/s virtual
Benchmarking: Kerberos AFS DES [24/32 4K]... DONE
Short: 70910 c/s real, 70910 c/s virtual
Long: 168540 c/s real, 168540 c/s virtual
Benchmarking: LM DES [32/32 BS]... DONE
Raw: 1805K c/s real, 1805K c/s virtual
Benchmarking: dummy [N/A]... DONE
Raw: 18783K c/s real, 18803K c/s virtual
As would be expected.. the ARM is not going to be faster than a PC for
this sort of work. The box is running a base OS without any sort of
special access to the onboard GPU. If I find a way to program that, I
will append the numbers accordingly. My guess is that in the end, the
big "win" of ARM would be MPI programming multiple boards (400+) to
run lots of slow calculations at the electrical and hardware costs of
running 40 PC boards.
--
Stephen J Smoogen.
"The core skill of innovators is error recovery, not failure avoidance."
Randy Nelson, President of Pixar University.
"Years ago my mother used to say to me,... Elwood, you must be oh
so smart or oh so pleasant. Well, for years I was smart. I
recommend pleasant. You may quote me." —James Stewart as Elwood P. Dowd
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