Date: Sun, 18 Mar 2012 09:02:16 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: SSH thread-safety On Sun, Mar 18, 2012 at 08:39:24AM +0400, Solar Designer wrote: > BTW, FX-8150 is documented to use 3.6 base / 3.9 full load turbo / 4.2 > half load turbo, so maybe I should try 3.9 / 4.2. Seems to work at 3.9 / 4.5. 3.9 matches FX-8150's, and the 600 MHz difference is consistent with FX-8120's default (was 3.4 to 4.0). So both frequencies are now 500 MHz higher than rated for this CPU. I haven't really tried going beyond 4.5 yet (except for the experiment up to 5.1 GHz in BIOS screens only), but the full load frequency is more important for JtR anyway (since we're normally going to use all cores), and 3.9 GHz appears to be the max for this chip without tweaking other settings (voltage, base clock). Non-OpenMP: Benchmarking: ssh [32/64]... DONE Raw: 164611 c/s real, 164611 c/s virtual OpenMP with 8 threads: Benchmarking: ssh [32/64]... (8xOMP) DONE Raw: 795785 c/s real, 99567 c/s virtual 795785/(164611*8*3.9/4.5) = 70% efficiency (of true 8-core CPU and zero-overhead parallelization) Alexander
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