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Re: pitiful dav performance

From: Philip Martin <philip_at_codematters.co.uk>
Date: 2003-02-25 14:58:24 CET

seanc@dimensionalrift.com writes:

> Timings:
> local svnserve: 0m 10s
> local file: 0m 9s
> local http: 3m 33s
> local https: 3m 33s
> remote svnserve: 0m 11s
> remote http: 3m 32s
> remote https: 3m 33s
> Is there some magic apache2 setting I've missed somewhere?. I've played
> with turning AuthType off (as well as SSL) and they have no effect on the
> performance of subversion.

There are some known ra_dav performance issues, issue 773 in
particular. The first thing to determine is whether the problem is
excessive CPU use or whether it is some sort of IO problem.

First, make sure nothing other than your subversion client is
accessing the apache server, and then run something like

$ ps aux | grep [h]ttpd

before and after an ra_dav checkout. This will let you see the amount
of CPU used by the apache processes. If apache only uses a few
seconds of CPU then the problem is probably some sort of IO delay. If
apache uses 3 minutes of CPU then we have some sort of scaling

Philip Martin
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Received on Tue Feb 25 14:59:25 2003

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