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From "Herter, Scott" <>
Subject RE: Volume Issue
Date Mon, 10 Oct 2011 12:12:52 GMT
OpenOffice 2.4 was tested under both Windows 2008 Server and Windows 7 and did not get slower
as time went on.  OpenOffice 3.3 was tested under both Windows 2008 Server and Windows 7 and
only got slower under Windows 2008 Server.

Main memory remained stable over time.

OpenOffice memory would go up until we restarted it after every 1000 uses.  If we don't restart
it OpenOffice will crash before it makes it to 2000 uses.  The crashing seems to be an issue
under Windows.  We have seen the memory increase in the OpenOffice process in Linux but OpenOffice
did not crash before our test ended.  This is the same for both OpenOffice 2.4 and 3.3.

OpenOffice leaks Windows Desktop Heap memory, this is a Windows only issue.  It eventually
eats up all the Windows Desktop Heap for a given virtual Desktop (interactive or service)
and the desktop needs to be destroyed and recreated, either by logging out and logging back
in, stopping and starting the service, or rebooting.  This is the same for both OpenOffice
2.4 and 3.3.  Unfortunately Microsoft has not provided a way to look at the Desktop heap for
Windows 2008 Server and Windows 7.  This used to be possible under Windows XP and Windows
2003 server.  I don't know if OpenOffice 3.3 is eating up Windows Desktop Heap and a faster
rate than OpenOffice 2.4.  I will have to get a Windows 2003 Server VM going at some point
to check that out.

-----Original Message-----
From: Rob Weir [] 
Sent: Sunday, October 09, 2011 5:21 PM
Subject: Re: Volume Issue

On Sun, Oct 9, 2011 at 6:06 PM, Herter, Scott <> wrote:
> We are using OpenOffice 3.3 on a server for a JEE application.  The JEE application
talks to OpenOffice using the UNO API to print documents and convert them to PDF.  With 2.4
We managed to get over 1 million conversions on a single stress test.  With OpenOffice 3.3
it got to around 50,000 and slowed down terribly.  This was on a Windows 2008 Server.  We
ran the same test on Windows 7 and didn't have a slowdown.  We were wondering if anyone new
anything about performance issues when running OpenOffice 3.3. on a Windows server.
> Thanks.

What was your OOo 2.4 test on?  Windows 2008 Server or Windows 7?
You seem to be changing two variables, platform and OOo version, so it is hard to say what
the cause is, at least based on your note.

Did you monitor things like process memory and system used paging file size?  Some sort of
resource leak sounds likely.


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