Date: Wed, 15 Feb 2012 06:56:03 -0800 From: Alain Espinosa <alainesp@...il.com> To: john-users@...ts.openwall.com Subject: Re: OMP version not use all CPU On 2/14/12, Alain Espinosa <alainesp@...il.com> wrote: > Will do and i report back. You are right, john-omp is working as expected. I see a 25% CPU use in the Task Manager and think i john was using only one core. More info by Resource Monitor (happen the same with jumbo and non jumbo version): When using 2 threads there is 2 cores (logical cores) with 0% use, 1 with 25% and other with 75%. When using 4 threads there is 2 cores (logical cores) with 0% use and the other 2 with 50%. >> Oh, and the speed you're reporting for LM hashes (25M c/s) is >> surprisingly low for JtR 1.7.9 on a modern CPU. As you can see, we have >> higher speeds for 1.7.9 here: http://openwall.info/wiki/john/benchmarks > > I take a look at this numbers. One difference its that i use a laptop > CPU, other its that i perform a "real" benchmark and not the "-test" > option. I consistently found differences in "-test" option and "real" > crack speed. I will test the "-test" option and review the method i > use to gather performance data. I review all the process of benchmarking and found my reported performance accurate. Here is john -test: >..\john.exe -test --format:nt Benchmarking: NT MD4 [128/128 SSE2 + 32/32]... DONE Raw: 18412K c/s real, 18412K c/s virtual >..\john.exe -test --format:nt2 Benchmarking: NT v2 [SSE2i 12x]... DONE Raw: 21509K c/s real, 21509K c/s virtual >..\john.exe -test --format:lm Benchmarking: LM DES [128/128 BS SSE2]... DONE Raw: 29076K c/s real, 29459K c/s virtual >..\john.exe -test --format:mscash Benchmarking: M$ Cache Hash [Generic 1x]... DONE Many salts: 14939K c/s real, 14939K c/s virtual Only one salt: 5845K c/s real, 5845K c/s virtual saludos, alain
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