Date: Thu, 2 Aug 2012 20:42:43 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Result of hard core password generation on 7970 On Fri, Aug 03, 2012 at 12:32:23AM +0800, myrice wrote: > Here is bitmaps result, currently I only use global memory. > > 1: guesses: 0 time: 0:00:01:22 0.00% c/s: 758186K ~= 758M c/s Are you using the bitmap even with just 1 hash loaded? In the real implementation, I guess you'll need to do direct comparisons when the number of loaded hashes (for the current salt if applicable) is below a threshold (like just 1 or 2). > 1000: guesses: 0 time: 0:00:01:16 0.00% c/s: 515938M ~= 515M c/s > 1M:guesses: 0 time: 0:00:01:51 0.00% c/s: 353254G ~= 353M c/s OK, this is an improvement upon what you had before. > For further performance gains. I am trying to use local memory when > the bitmaps size is less than 8KB. I am debugging this(load bitmaps > from global memory to local memory seems not work, still > investigating). As an option, you could form the bitmap in local memory right away, based on the list of loaded hashes for the current salt. I guess you'd have to redo it for every crypt_all() call, though. Alexander
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.