Date: Tue, 15 Sep 2015 09:29:40 +0200 From: Frank Dittrich <frank.dittrich@...lbox.org> To: john-dev@...ts.openwall.com Subject: Re: Judy array On 09/15/2015 03:03 AM, Solar Designer wrote: > magnum - testing this stuff, I see that pot sync is a major bottleneck. > Since this is your feature, you might want to benchmark and optimize it > some more, or/and maybe we just want it disabled by default when cracking > saltless hashes. Even with fast salted hashes, it is a problem when you have may be 4 instances of john running, each with about 2 million hashes, and cracking many passwords. Here, pot sync didn't make any sense, because each process was attacking separate hashes. But even IF id would make sense (say, attacking the same set of hashes with different word lists/rules), the slow down due to pot sync was much worse than any possible gain. So I adjusted the config and set ReloadAtCrack = N ReloadAtSave = N You might also want to set ReloadAtDone = Y (It didn't matter for me, because I didn't use --fork.) Frank
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