Wondering how many MB your Cognos JVM (Java Virtual Machine) uses? Type in the following URL in your browser
http://localhost/cognos8/cgi-bin/cognosisapi.dll?b_action=/diagnostics
Provide login credentials if required and the result appears.
<Diagnostics>
<Dispatcher host="localhost" port="9300" capacity="1.0" />
<Memory Amount_of_free_memory_in_the_system="16199.064 KB" Total_memory_in_the_JVM="130955.776 KB" />
<CM host="localhost" port="9300" />
</Diagnostics>