Rob Lanphier <> changed:

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--- Comment #22 from Rob Lanphier <> 2011-02-02 20:47:26 UTC 
There's been a few offline discussions about how MD5 sums might relate to
performance, so I figured I better document my take here.  At our current rate
of editing (if I'm reading the numbers correctly), we get somewhere on the
order of 10-12 million edits per month, which translates into a rate of
something like 5 edits per second.  On my laptop, the built-in PHP function
(which is presumably
what we'd use) takes somewhere on the order of 2 milliseconds to compute the
MD5 sum of the built in American English dictionary file on my computer (which
is approximately 931k).  This is all back-of-the-envelope stuff, so I could be
wildly off somewhere, but it seems like pretty negligible load given the
benefit of not forcing everyone else to compute these values downstream.

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