Recommended settings

Screen resolution

•	Recommended screen resolution – At least 1280 x 1024 pixels.

•	Minimum screen resolution – 1024 x 768 pixels.

•	Run the applications in a maximized browser window.

JVM memory settings

You must make sure there is enough memory available for DBQ Tool on the JVM (Java Virtual Machine).

The amount of memory required depends on the installation environment, the number of deployed web applications, and the load on the Java application server. For example, deploying DBQ Tool to the same Java application server as the StreamStudio web portal requires more memory than deploying to a separate Java application server. We recommend that you use a Java profiling tool for monitoring and tuning the Java memory settings on a running Java application server.

When deploying DBQ Tool to a separate Java application server, we recommend the following memory settings (case sensitive):

JVM	Recommended settings
32-bit JVM	-Xmx768m -XX:MaxPermSize=256m
64-bit JVM	-Xmx1024m -XX:MaxPermSize=384m Note: If you run DBQ Tool on a 64-bit system with 4 GB memory or less, we recommend that you use a 32-bit JVM. A 64-bit JVM is not recommended unless you have more memory – you might need twice as much physical memory on a 64-bit system as on a 32-bit system to achieve the same performance.

For information on how to specify the memory settings, see the user documentation for the Java application server.