[oXygen-user] More Java memory errors with oXygen 9.2

George Cristian Bina
Mon May 19 09:01:42 CDT 2008

Hi Eliot,

Our best guess is that it is possible to have some accumulated memory 
for storing the changes needed for the undo operations.

If you go from the Text mode to Author mode and make some changes then 
go back in Text mode, go to Author and so on then there is possible to 
accumulate an important amount of memory for storing the information 
needed to perform undo operations.

Thus the suggestion that Sorin made earlier was to try to limit the undo 
buffer by enabling the options "Clear undo buffer before Format and 
Indent" (Preferences -> Editor -> Format) and "Clear undo buffer on 
save" (Preferences -> Editor -> Open/Save). Please try the same thing 
and see if you still get OutOfMemory errors? You can also try increasing 
the memory to 300, 400, 500 MB.

In Help->About there is a "JVM Memory Used" label that shows the amount 
of memory used by oXygen and the total available memory. You can try to 
perform a File->Close All action on the editors (after you worked for a 
few hours but before getting an OutOfMemory error) and then go in the 
Help->About dialog and click on that label (that will run the Java 
garbage collector) and then see how much memory is used by oXygen. If 
that is around 30-80MB then it should be ok.

Best Regards,
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger

Eliot Kimber wrote:
> On 5/18/08 8:09 AM, "Jacques Foucry" <> wrote:
>> Hello,
>> Using oXygen for a long time under Mac OS X, the new version (9.2)
>> have more memory errors than previous version.
> I can't quantify my experience but it does seem like 9.2 has more
> performance issues after I've opened a few files than I remember with 9.1.
> But that could as easily be because I'm using it more, or using Author mode
> more, than I have before. I did set the VM to 256m for Oxygen 9.2. The last
> couple of weeks I've been focused on primarily heads-down authoring of
> documentation, making heavy use of the DITA features and Author mode and I
> have had a couple of times where I started getting out of memory errors when
> it didn't seem like I had opened that many documents (but it's hard to know
> what I had really done over the course of day).
> Is there a way to get better measurements or instrument Oxygen to prove or
> disprove this impression?
> Cheers,
> Eliot

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