I posed the same question/problem a while back. Our project is about 288MB+
We too switched from CVS to SVN. We're a Windows client/server with Linux
enterprise repository configuration as well. In all fairness SVN only
slightly takes longer than CVS at a cmnd prompt. A complete & clean check
out at a Dos prompt takes about 20-25 minutes.
However, I do my check outs now via Tortoise and it really cuts down on the
check out time, like 10-15 minutes [don't ask me why, I wouldn't know!!],
try it. I only use the SVN-CLI for miscelaneous stuff.
----Original Message Follows----
From: Glenn Serre <gaserre@spiresoftware.com>
To: users@subversion.tigris.org
Subject: slow checkout on windows client
Date: Mon, 06 Mar 2006 23:21:21 -0800
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Good evening,
We have just switched our development project from CVS to Subversion.
There are about 3500 files in lots of subdirectories, and from my point of
view,
the switch is going pretty well. The biggest user question so far is why is
checkout so slow compared to CVS, and even more, why is it so slow compared
to
Subversion on Linux? I couldn't find much recent (after 2004) discussion
about
this on the mailing list or the FAQ, but if someone has a pointer to some
documentation or discussio bn, I'de happy to have it.
More detail on our setup:
Access method: svn+ssh.
Windows client: cygwin subversion (1.2.3) and cygwin ssh (OpenSSH_4.3p1).
Linux client: svn version 1.2.3, fsfs
Our source code checkout from Subversion (including the .svn directories) is
about 250Meg.
Our time for svn checkout from the local network is ranges from 10 to 20
minutes. My time for svn checkout over a slower DSL line (I work from home)
also ranges from about 10 to 20 minutes.
The time for svn checkout on the local network on a Linux client (not the
server
machine) was reported to be 42 seconds!
From a previous, relatively short subversion email thread (in 2004, I think)
I
might say that the checkout time for Subversion on Windows is longer than
the
equivalent time for CVS because
- SVN writes the entire original file to local disk.
- SVN writes more files to local disk
- SVN writes does more setting of modification times and access lists (?).
As to why Linux is so much faster than Windows, I would guess that Linux
file
system optimization is just a closer match with what Subversion uses that is
the
Windows file optimization, although I guess there's a possibility that the
Windows client could use some optimization work (?).
Other data: Running the 1.3.0 Windows client from the command prompt rather
than
the cygwin shell appears to yield some performance improvement, but nothing
as
dramatic as the Windows vs. Linux difference.
Questions:
- Any pointers on how to speed up the Windows checkout performance?
- Does the Linux vs Windows performance difference seem reasonable (in line
with
experience)?
- Anything I can do to help with speeding up the Windows client performance
(I'm
willing to invest a some development time on this).
- other comments?
Thanks in advance for your time,
--Glenn S.
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Received on Tue Mar 7 21:42:35 2006