Date: Mon, 22 Dec 2014 19:12:22 +0100 From: marcel@...wthinkers.net To: john-users@...ts.openwall.com Subject: Re: ARM exynos 5410 benchmark results In message <20141222172922.GA28680@...nwall.com>, Solar Designer writes: > On Mon, Dec 22, 2014 at 05:58:32PM +0100, marcel@...wthinkers.net wrote: > > > > In message <20141222143351.GC26760@...nwall.com>, Solar Designer writes: > > > > > This looks good for a (presumably) low-power CPU. > > > > I haven't measured it, but should stay well below 20 Watt at full > > speed. > > 20W would be A LOT for this CPU and these speeds. I'd expect something > under 5W. What's the official TDP for it? Actual hard TDP numbers are hard to find for this SoC, but reading enough marketing material would suggest 3-4 W TDP. There is a slide from a ieee conference at http://www.anandtech.com/show/6768/samsung-details-exynos-5-octa-architecture-power-at-isscc-13 that would suggest something between 4 and 6 W TDP. Keep in mind that this is the first big.LITTLE SoC. It'll be interesting to see what the 5430 (20nm), and 74xx (20nm) will do. The system (Odroid-XU) is delivered with a 5V 4A power supply, and supposedly a 5V 2A supply will not work. This is something I have not tested. > > For example, here's JtR 1.8.0 built with "gcc version 4.8.2 (Alpine > 4.8.2)" running on: > > model name : Intel(R) Pentium(R) CPU N3530 @ 2.16GHz > > http://ark.intel.com/products/81074/Intel-Pentium-Processor-N3530-2M-Cache-up -to-2_58-GHz > > Per Intel, this quad-core x86 CPU has TDP 7.5W, SDP 4.5W. > > Will run 4 OpenMP threads > Benchmarking: descrypt, traditional crypt(3) [DES 128/128 SSE2-16]... DONE > Many salts: 6239K c/s real, 1562K c/s virtual > Only one salt: 5147K c/s real, 1291K c/s virtual > > Benchmarking: bsdicrypt, BSDI crypt(3) ("_J9..", 725 iterations) [DES 128/128 SSE2-16]... DONE > Many salts: 199884 c/s real, 49921 c/s virtual > Only one salt: 186777 c/s real, 46647 c/s virtual > > Benchmarking: md5crypt [MD5 32/64 X2]... DONE > Raw: 22349 c/s real, 5848 c/s virtual > > Benchmarking: bcrypt ("$2a$05", 32 iterations) [Blowfish 32/64 X2]... DONE > Raw: 1892 c/s real, 473 c/s virtual > > Benchmarking: LM [DES 128/128 SSE2-16]... DONE > Raw: 28468K c/s real, 7124K c/s virtual > > Benchmarking: AFS, Kerberos AFS [DES 48/64 4K]... DONE > Short: 234342 c/s real, 234342 c/s virtual > Long: 532377 c/s real, 532377 c/s virtual > > Benchmarking: tripcode [DES 128/128 SSE2-16]... DONE > Raw: 4022K c/s real, 1010K c/s virtual > > Benchmarking: dummy [N/A]... DONE > Raw: 16308K c/s real, 16276K c/s virtual > > john-1.7.9-jumbo-7 has faster md5crypt: > > Benchmarking: FreeBSD MD5 [128/128 SSE2 intrinsics 12x]... (4xOMP) DONE > Raw: 53184 c/s real, 13296 c/s virtual > > (I ran these benchmarks before we released john-1.8.0-jumbo-1.) > > Surely ARM should be more energy-efficient than x86, especially at the > lower clock rate, so perhaps your CPU's TDP is below this one's 7.5W. > On the other hand, it's 22nm (Intel) vs. 28nm. > > > > Can you please add these benchmarks to > > > http://openwall.info/wiki/john/benchmarks along with precise JtR version > > > info? > > > > Done. Please let me know if anything is needs to change. > > Yes: I think you wrongly stated that you ran 8 threads. I think you > only ran 4. If so, please correct that little detail. Checked, and I did fill it out correctly. Total cores is 8 for this SoC, it's big.LITTLE. 4 x Cortex-a7 which can switch to 4 x Cortex-A15. So total cores turns out to be 8, with only 4 being active at any one time. - marcel
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