[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: FSFS performance concerns.

From: David Glasser <glasser_at_davidglasser.net>
Date: 2007-10-30 22:23:45 CET

On 10/30/07, C. Michael Pilato <cmpilato@collab.net> wrote:
> I keep two svnsync'd mirrors on my laptop:
>
> 1. /usr/local/svn/subversion is an FSFS-backed mirror of
> http://svn.collab.net/repos/svn, currently up-to-date as of
> r26729.
>
> 2. /usr/local/svn/subversion-bdb is a BDB-backed mirror of
> /usr/local/svn/subversion, also at r26729.
>
> I've been noticing some real issues with history-tracing performance with
> the FSFS repository, so I did some quick-and-dirty runs of 'svn log' today:
>
> * 'svn log http://svn.collab.net/repos/svn/trunk -q' (remote, FSFS,
> 1.4.5) took about 35 seconds.
>
> * 'svn log file:///usr/local/svn/subversion/trunk -q' (local, FSFS,
> 1.5.0-dev) took about 6 minutes, 46 seconds.
>
> * 'svn log file:///usr/local/svn/subversion-bdb/trunk -q' (local, BDB,
> 1.5.0-dev) took about 6 seconds.
>
> What in the world has happened to FSFS in 1.5?!

I can't reproduce this on my Linux desktop. I'm seeing 18 seconds for
log on svn.collab.net, and at most 30 seconds for log on an svnsync'd
copy; re-running the log on the copy brings it down to 4 seconds. I
can't get anything to happen anywhere near your 6:46 result.

--dave

-- 
David Glasser | glasser_at_davidglasser.net | http://www.davidglasser.net/
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Tue Oct 30 22:24:06 2007

This is an archived mail posted to the Subversion Dev mailing list.