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

svn ci performance issue with 1.7.x and nfs mounted working copies

From: <michael_rytting_at_agilent.com>
Date: Wed, 14 Dec 2011 09:55:05 -0700

I originally sent this to users@ but didn't get any response. Trying dev@. I'm really starting to get some pushback from our engineers wanting to go back to 1.6.x because of pretty severe performance slowdowns.

In addition to slow "svn rm" commands we are seeing some pretty severe slowdowns for "svn ci" as well. For example, here is an interesting situation. I want to checkin a single file in my repository. If I run "svn ci" from the root of my working copy it takes 1m11s to complete. However if I instead run

cd <root of working copy>
svn st
cd subdir
svn ci
cd <root of working copy>
svn up

That whole set of commands takes 16s to run. The actual change I am committing is adding or deleting a single line of a very small script. I am trying to simulate what a top level "svn ci" script would do with the commands I have above.

Here are the stats for my working copy. As generated by my checkSVNSize.sh script.

digital/mixedsignal/analog_model/analog_model_vams/netlist/hh1a|210
5393
0
0

My checkSVNSize.sh script runs the following queries

sqlite3 .svn/wc.db "select parent_relpath, count(*) AS n from nodes group by parent_relpath order by n desc limit 1"
sqlite3 .svn/wc.db "select count (*) from nodes"
sqlite3 .svn/wc.db "select count (*) from nodes where op_depth > 0"
sqlite3 .svn/wc.db "select count (*) from actual_node"

Michael Rytting
Agilent Technologies
michael_rytting_at_agilent.com<mailto:michael_rytting_at_agilent.com>
719-590-3708

Michael Rytting
Agilent Technologies
michael_rytting_at_agilent.com<mailto:michael_rytting_at_agilent.com>
719-590-3708
Received on 2011-12-14 17:55:42 CET

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