Anybody running svnserve?

I'm running svnserve on my Linode 120. Gentoo Linux, Subversion 1.2.3.

Performance is usually horrible. The average time to do something like 'svn list' runs anywhere from 30 seconds to a little over a minute, and that's on directories with 5-6 entries. Commits are even worse. This happens even if I ssh into my linode and connect to svnserve via the loopback interface. Other than that, things are snappy over the SSH connection, so I'm almost certain that it's not network slowness in general. Additionally, I tried dumping a repository and dropping it on a dedicated server that a client has, and operations are significantly faster.

I have the same problem on repositories that are small (2-3 revisions, maybe a handful of files) and large (40+ revisions, thousands of files). I have tried using both bdb and fsfs repositories, and get essentially the same performance with both.

I'm not having problems with io tokens … I've monitored /proc/io_status during operations, and I generally never drop below 390,000 tokens.

Any ideas?

3 Replies

Did you try file:/// notation on the linode?

Also emerge sysstat and monitor 'iostat -k -d 1' and see what IO rate you see

Try running Subversion through Apache with webdav.

I haven't used svnserve, but I'm running a Subversion server via Apache 2, and response times are as fast as ssh.

Sorry to take so long to respond … had a few pressing projects to work on and this was the least of my worries …

thelsdj -- using file:/// on the linode is much faster. Below is the output from iostat, starting just before I issue an svn list and running until just after I got the output. It appears that for most of the time that I am waiting, nothing is happening.

I did switch to the mod_svn implementation per graham's suggestion, and that has solved the problem, but I would still like to know what is going on with svnserve, if possible.

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          29.66        43.72        17.06   10276589    4010842

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           1.98         0.00        14.85          0         15

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           3.96         0.00         6.93          0          7

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           1.00         4.00         0.00          4          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          24.00         0.00        79.00          0         79

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           1.98         0.00         3.96          0          4

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0         307.00      2001.00       308.00       2001        308

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          71.00       645.00        65.00        645         65

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          96.00       420.00       151.00        420        151

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          43.00       156.00         0.00        156          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          40.59       128.71         0.00        130          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          72.28        61.39      1456.44         62       1471

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          15.84        74.26         0.00         75          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          26.21       120.39         0.00        124          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          20.59        72.55         0.00         74          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          23.00        52.00         0.00         52          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          80.00       131.43       184.76        138        194

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          13.00        62.00         0.00         62          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          13.00       102.00         0.00        102          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          25.00       133.00         0.00        133          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          11.76       109.80         0.00        112          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0          27.72         0.00       166.34          0        168

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
dev98-0           0.00         0.00         0.00          0          0

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