Date: Tue, 15 Sep 2015 18:25:50 +0300 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Judy array On Tue, Sep 15, 2015 at 09:57:18AM +0200, magnum wrote: > On 2015-09-15 05:40, Solar Designer wrote: > >This saves 4 seconds, but only when -mem=999999999 is also used: > > > >-WordlistMemoryMap = Y > >+WordlistMemoryMap = N > > FWIW we have -mem=0 as a (somewhat backwards) shortcut for "no limit". > > We could probably default to not mmap when that other buffer is used. > Using mmap doesn't make much sense then anyway (but I never saw any hit > from it so I opted for simplicity). > > >I think there might still be wordlist duplicate suppression going on. > >It would be nice to try disabling it. > > It may currently come with that memory buffer. I'll see what I can do. Thanks. > >The addition of source() method for raw-md5 helps a lot. Without it, > >and without the copy-on-write avoidance in cracker.c, I couldn't run > >8 processes on this machine without it getting into swap. Perhaps we > >should add source() to more formats. > > I dropped source() from a few formats when I added reversing steps. I > think I was confused: You can't have source() with a reduced binary - > but reversing steps does not mandate a reduced binary. I didn't realize you dropped any of them. Yes, I think you should re-introduce those. Alexander
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