440 IBM Workplace Services Express
Refer to 7.4.2, “Setting up Domino LDAP” on page 296 to continue with
Workplace Services Express configuration from this point.
There are a number of optimization techniques in the Workplace Services
Express Information Center and in the Best Practices Guide:
IBM Workplace Services Express 2.0 Information Center, available at:
IBM Workplace Services Express 2.0 Best Practices Guide, available at:
To find out how Workplace Services Express is using resources on your server,
we recommend that you use the relevant operating system tools to monitor
memory, CPU, disk, I/O, and network utilization. These tools will indicate where
there might be resource constraints within your environment. If you locate a
resource constraint, you should confirm that your hardware configuration and
specifications match the recommended requirements for Workplace Services
Express in a production environment. In the real world, you might meet the
requirements for Workplace Services Express and, for example, find that you are
running low on memory. In this instance, you could try increasing the installed
memory if your hardware allows.
8.6.1 Heap size
The heap size for the Java virtual machines (JVMs) used by Workplace Services
Express can be increased to improve performance. Workplace Services Express
has three active JVMs in use, one for WebSphere_Portal,
LotusWorkplace_Server, and Cloudscape Network server. Each of these JVMs
will be preassigned a maximum heap size. On servers with more than 2 GB of
RAM, the heap size can be increased. Remember that the server operating
system will require memory, and therefore, you must not allocate all the physical
memory to these JVMs.
To check the heap size for the JVMs, perform the following steps:
1. Make sure that Workplace Services Express is running.
2. Open a supported Web browser.
3. Type the following Web address: