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svnadmin load is slow for many small revisions

From: Vyacheslav Zholudev <vyacheslav.zholudev_at_gmail.com>
Date: Tue, 15 Nov 2011 23:29:09 +0100

Hi all,

After transition from debian lenny to squeeze I recompiled my version of SVN 1.4 (yes, I do need exactly 1.4). I tried to load a dump with many 1 file revisions into the BDB-based repository.
First 300 revisions are committed really fast, like 10 revisions per second. After 1000 revisions, it is about 1-2 seconds per one revision. And performance keeps degrading.

I'm curious what that might be? I tried to compile against different versions of APR (from 1.3 to 1.5) with BDB 4.8. I used libtool 1.5 since autogen.sh does not work with libtool 2.2. May this be somehow related to my issue? Maybe some compilations flags are wrong for a new system, or some libraries that I'm linking against (e.g. neon)?

I have no real clue what that might be, so I will highly appreciate if somebody can give me any pointers, even vague ones or possible hints to try, since I really need SVN 1.4 for my other projects.

P.S. CPU usage is very high, waiting for IO was about high (that what I would expect) and decreases to 0% over the time.
P.P.S. I also tried to compile in maintainer mode and without, with preinstalled APR, and by putting them into source tree, with mod_dav and without. Still the same...

Thanks a lot in advance,
Received on 2011-11-15 23:45:30 CET

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