RE: [TSVN] Algorithm for determining if files are locally modified

Stefan writes:
> Subversion will soon be replacing the last step of this algorithm
> (comparing byte by byte) with an MD5 checksum.

I'm just curious: why? Since computing an MD5 checksum still requires
reading the entire file, I wouldn't think it would be any more
efficient -- less so actually. And although MD5 collisions are (very!)
unlikely, full-text collisions are impossible. Plus we give up the
ability to quit reading after discovering a difference partway through
the file. So what's the advantage? Are the MD5's cached someplace?

-- Michael Chermside

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Received on Tue Jun 22 18:35:25 2004