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Re: Performance

From: Paul Koning <pkoning_at_equallogic.com>
Date: 2005-09-12 23:33:09 CEST

>>>>> "William" == William Nagel <bill@stagelogic.com> writes:

 William> On Sep 12, 2005, at 2:21 PM, Paul Koning wrote:

>> I'm doing tests of CVS vs. Subversion.
>>
>> The first test is to checkout a full working directory, on a
>> rather large repository (35,000 revisions, and the CVS working
>> directory is foo MB).

 William> My brain got an NaN parse error on your working directory
 William> size. ;-)

Oops. I wrote that and then didn't go back to fill in the output from
"du -s".

1.6 GB of working directory in the CVS sandbox, 3.5 GB in the SVN
sandbox.

I just noticed a possible cause... the RewriteLog was turned on (part
of an attempt to get Insurrection to work again...)

Turned it off. Started a new run... almost done and then some wise
guy shut the system down. Argh...

>>>>> "Christopher" == Christopher Ness <chris@nesser.org> writes:

 Christopher> What method was used? It looks like http:// since you
 Christopher> mentioned an apache revision number.

http.

 Christopher> What kind of authz are you using? Is the repository
 Christopher> wide open for anyone or are there permissions for each
 Christopher> dir?

readonly wide open, "basic" for read-write.

 Christopher> The book says the log sub-command is mostly hit by the
 Christopher> overhead of checking the paths for each directory. If
 Christopher> you have that many files, I'm thinking you have quite a
 Christopher> nested directory structure.

 Christopher> This link will show you how to disable authz and
 Christopher> explains what is going on in more detail:
 Christopher> http://svnbook.red-bean.com/en/1.1/ch06s04.html#svn-ch-6-sect-4.4.3

Thanks, I'll study that.

 Christopher> ALSO: I'd like to know what type of file system you are
 Christopher> using (likely ext3). If you have time, try the
 Christopher> repository in a Reiser file system partition and post
 Christopher> your benchmark times again.

ext3. But I'd rather not switch. What does Reiser have going for it
that would help here?

     paul

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Received on Mon Sep 12 23:34:55 2005

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