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Date: Tue, 7 Jun 2011 21:46:18 +0200
From: Ɓukasz Odzioba <>
Subject: Lukas's Status Report - #4 of 15

I cannot wait for exams ends, and I will have much more time.

I've implemented md5-based crypt but still having trouble with forcing
it to work properly.

In the meantime I found cpu implementation called "fast md5-crypt" and
want to analyze it and compare to the current one.
I tried to check coalesced read/write in sha256 crypt (because it was
easiest to do) and got following results:
Raw:    10569K c/s real, 10569K c/s virtual

Coalesced read
Raw:    12115K c/s real, 12115K c/s virtual

Coalesced read and write
Raw:    12376K c/s real, 12376K c/s virtual
Overall: +7%

It is not a big deal, but it's worth to do in other patches. The
problem is that it makes code harder to understand/manage, but I
should find a way to improve that.

Surprisingly I didn't stated any difference in coalescing operations
inside kernel.

I have also added gtx460 benchmarks results to the wiki.  Presenting
them as a list its not user friendly, so meaby we could turn on html
or php support on wiki to add charts as a nice google chart script,
example here:


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