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Re: Which Berkeley version to use? NOT 4.1.x!!!

From: David Waite <mass_at_akuma.org>
Date: 2003-06-05 16:34:27 CEST

Not saying whether or not 4.1.x is this much slower or not, but this
doesn't seem like a very fair test - 0.22 vs 0.23, 128 MB vs 512 MB.

-David Waite

John Peacock wrote:

> As a late response to a thread from Feb 2003, I can personally confirm
> that although Berkeley 4.1.x _will_ work with the current subversion,
> it is rather massively slower and much more demanding of drive space.
> I attempted to load the APC (All Perl Changes - all Perl patches since
> 5.004) first using Berkeley DB 4.1.24 and subversion 0.22. It ran for
> ~36 hours before I finally gave up; it barely got through 2000
> revisions and I had to delete the old log files twice (I only had 12GB
> free on that partition!).
> Then I rebuilt using Berkeley DB 4.0.14 and subversion 0.23 and
> started from scratch. The import took ~18 hours (~16000 revisions)
> and generated only ~10GB of db log files total. Granted, I did also
> go from 128MB to 512MB on that system, but I doubt that would account
> for all of the speed difference, or any of the logging difference.
> Either 4.1.x is much more paranoid about checkpoints or there is
> something wrong with the way svn is interacting with BDB, I think.
> I'll have to defer to someone who actually knows the code to fix it.
> Hope this helps the next person trying to make this decision...
> John

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Received on Thu Jun 5 16:35:34 2003

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