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Speed up your Lotus Notes performance by tuning the JVM

January 14, 2011 3 Comments

I posted this a while back on my internal blog at IBM and it’s clearly one of the most read entries so I’d thought I would share it with everyone, please spread the info.
Lotus Notes uses Java Virtual Machine (JVM) for processing of Lotus Notes applications and plugins. 
IBMs Lotus Notes client configuration has a standard value that defines how many megabytes of RAM Lotus Notes can maximally use for JVM. This value is for PCs with above 1 GB RAM initially set too low, as it should be approx. 1/3 of the RAM of the PC (default value = 256 MB, but should be 768 MB).
How to change this:
1.) Shut down Lotus Notes. 
- To be sure no processes are running in the background, run this command from Start -> Run
Type C:\notes\nsd.exe -kill
2.) Find the file “jvm.properties” in this folder (depending on Lotus Notes version):
In Lotus Notes version 8.5.x:
C:\Notes\framework\rcp\deploy\
3.) Open the jvm.properties files in a texteditor like notepad.  
4.) You will now see a text surrounded by a lot of pound signs ####
The first ‘property’ after the last # sign is: 
vmarg.Xmx=-Xmx256m
This is where you must change 256 MB RAM to 768 RAM (if you have 2GB RAM installed which is IBM standard)
vmarg.Xmx=-Xmx768m
5.) Save your changes and close the file.
Now start Lotus Notes and hopefully you will find it a lot faster already at password prompt and afterwards for opening workspace, mailbox etc.

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Comments (3)

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  1. Ramy El Serwy says:

    Thanks, it will be very useful

  2. Inspi says:

    Thank you very much.
    Even lotus notes feels faster. Keep giving these nice tips

  3. Thomas Bahn says:

    With Notes 9 I already have vmarg.Xmx=-Xmx1024m in this file.

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