Date: Fri, 3 Aug 2012 00:15:50 +0800 From: myrice <qqlddg@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Result of hard core password generation on 7970 On Wed, Jul 25, 2012 at 8:30 PM, Solar Designer <solar@...nwall.com> wrote: >> >> 1: with 2048*8, ~900M c/s, but with 2048*16, it is ~500M c/s > > OK, this is starting to become reasonable. Have you also tried values > smaller than 2048*8? > Yes. With greater or smaller than 2048*8, the performance is not that good. >> 1000: with 2048*8, ~45G = ~45M, with 2048*16, ~90G = ~ 45M > > I understand what you mean by "~45G = ~45M", but why "~90G = ~ 45M"? > I think you're confused. At 1000 same-salt hashes, "90G" reported > effective speed (combinations per second) means 90M hashes computed per > second. max_keys_per_crypt is not part of that equation. > > (I definitely need to improve speed reporting to avoid such confusion.) > Sorry, my mistake, it should be ~90G=~90M Thanks myrice
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