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Re: Subversion 0.30.0 stability problems : not able to check in bigger pieces

From: Roland Schwingel <Roland.Schwingel_at_onevision.de>
Date: 2003-10-08 13:59:21 CEST

Hi...

Ray Miller <ray@sysdev.oucs.ox.ac.uk> wrote on 07.10.2003 10:59:29:

> On Tue, Oct 07, 2003 at 10:48:02AM +0200, Roland Schwingel wrote:
> >
> > Thanks for the tip. I will serach the dev list archive. I will also
make
> > a second installation on a single CPU machine.
>
> Thanks - I had also planned to try that, so this will save me some
> trouble. I will be interested to hear how your single CPU test goes.

Made 2 tests...

installed everything on a second machine
AMD Duron 800MB single CPU, 256MB Ram, Suse Linux 8.2
Kernel 2.4.20
apache2 2.0.47
berkley 4.1.25
subversion 0.30.0

And here it works... I did the cycle 5 times... But it is slow. Checking in
of apache 2.0.47
(all local on the same machine, but using http - as shown in my initial
mail) takes about 8 minutes
Only small disk activity, no swapping, CPU ~90% idle (from what top says)
during checkin
(the phase where dots are painted, I think each for a file) before and
afterwards there are phases which
much higher load. Moderate memory consumtion of svn/httpd processes (6-17
MB)

Afterwards I went back to my 2 cpu machine and recompiled everything with
berkeley 4.0.14
Then checkin works.... Slow but it works. So I assume that Ray is right,
that this might be an
issue of BDB 4.1.25 with 2 CPUs. From what I have seen at sleepycat.com
(and the dev mailinglist)
there is a version 4.2.xx scheduled for october with changes in locking
code. Maybe this
helps subversion (and me). I am also eager to get subversion 0.31.0 where
issue 1490 and 1499 appaer
to be fixed (from what I have seen in the branches area of svn.collab.net).
Maybe this helps here to.

On weekend I will disable one cpu on my dual machine and make again a test
with BDB 4.1.25
(and a run with memtest86)

Roland

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Received on Wed Oct 8 14:00:34 2003

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