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# Optimize the web client

Use these recommendations to optimize performance of the OpenText Dimensions CM web client.

In this topic:

## General recommendations

The web client connects only to the OpenText Dimensions CM server and does not connect to a library cache area.

To optimize performance for web client users:

- Locate the web server and the OpenText Dimensions CM server on the same fast LAN.

- If web client users experience problems downloading a large project, they should download separate parts and subfolders of the project, rather than the whole project at one time.

- Optimize memory setup for OpenText Common Tomcat, as described next.

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## Optimize Tomcat memory setup

If multiple developers are using the web client, you can improve performance by modifying the memory size setup for Tomcat. If only a few users are using the web client an improvement in performance is unlikely.

You can optimize the memory setup for Tomcat by modifying the following Java command-line argument values for the initial heap size and maximum heap size:

Command-line argument | Description
--- | ---
`-Xms` | Initial heap size. Default size: 2048M.
`-Xmx` | Maximum heap size. Default size: 4096M.

To change the Tomcat maximum memory size on Windows:

1. Open a command prompt and run the following command. Edit the command depending on your Tomcat installation location.

   Copy code

       "C:\Program Files\OpenText\common\tomcat\9.0\bin\tomcat9w.exe" //ES//OpenTextTomcat

   The OpenText Tomcat Properties dialog box opens.

1. Select the Java tab.

1. In the Maximum Memory Pool field, enter a value, and click OK.

1. Restart the OpenText Tomcat Service.

To change the Tomcat maximum memory size on UNIX:

1. Open this file:

   ${INSTALL_LOCATION}/common/tomcat/9.0/bin/setenv.sh

2. Find the line `CATALINA_OPTS=...` and modify its value, for example:

   - Increase the value of `-Xmx` if your system can support that memory size.

   - Reduce the value if you are not using the web client.

1. Save and close the file.

2. Restart Tomcat using the shutdown.sh and startup.sh scripts.

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See also:

- Optimize

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