Date: Thu, 30 Jun 2011 03:50:33 +0200 From: Łukasz Odzioba <lukas.odzioba@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Lukas's Status Report - #7 of 15 > Sounds good. What's the status on md5crypt, though? I've created 0-revision (simple raw, easy to understand, without "dirty" optimizations) It's already uploaded on wiki (few minutes ago), and benchmarks results are on wiki gpu subpage. > And can you please upload your "finished second version sha256crypt" > right now (not next week)? In general, I want code contributions to be > available to the community sooner rather than later (which introduces > extra risks - e.g., your hard drive might fail). I'm doing code backups after grater changes, and often do not want to share dug up code, hard to read, use for anyone besides me. 1-revision of sha256crypt was rewritten from scratch. It's much easier to read and 25% faster than previous. Results are highly depend on salt and pass length For example: saltlen=10,passlen=12 Old: 5578 c/s New: 6813 c/s saltlen=10,passlen=4 Old: 10561 c/s New: l3248 c/s I've added #FULL_UNROLL definition which unrolls completely main sha256 loop and gives an additional 5% speedup (compilation takes 5 minutes longer). I need to buy better power supply to test 9800gt, and add multigpu support in the future, but while I'm unable to achieve much better perfomance on single gpu it's not a high priority task.
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