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Heap Size How-To? Don't understand Note 723909

Dear all,

I don't fully understand Note 723909

In my example I have a portal running on 7.0 SPS 12, Windows Server 2003 X64, Java j2sdk1.4.2_15-x64, with one CPU and 12 GB RAM.

My current settings are:

Java Home: C:/j2sdk1.4.2_15-x64

Max Heap Size (in MB): 2048

Java Parameters:


















Classpath: ./bin/boot/boot.jar;./bin/boot/jaas.jar;./bin/system/bytecode.jar;.

Parameters: <empty>

Are these settings ok? How can I calculate the correct Heap Size?

Are Max Heap Size (Dropdown box) and the parameter -Xmx2048m identical? do they have to be identical?

Thank you for your hints!!


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