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List:       subversion-dev
Subject:    Re: "svn diff" performance
From:       Vladimir Prus <ghost () cs ! msu ! su>
Date:       2002-07-24 13:44:41
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Ben Collins-Sussman wrote:
> Vladimir Prus <ghost@cs.msu.su> writes:
> > REPORT request is at 1.816335
> > response comes at 3.018566
> >
> > Then, almost instantly client does PROPFIND for
> > /whale/trunk/src/codegen.cpp (the only changed file).
> >
> > Then, I see GET at 3.062126 (for revision 42)
> > Server starts responding at 3.516448
> >
> > Then, there's another GET at 3.517878 (for revision 43)
> >
> > After that I'm at loss -- I see some "FIN" packets and finally, at
> > 20.074125 the server returns revision 43.
> >
> > So, getting the second revision takes a lot of time, and there's nothing
> > special about that revision.
>
> That definitely sounds like something is broken.

And I now know what caused the problem: I had MaxServers set to 2 in 
httpd.conf. After changing this to 4, the performance became reasonable. 
Hmm... I still think there's something wrong -- why would ra_dav require more 
than one apache instance?! Isn't that inefficient?

- Volodya


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