Technical references : Administration : Tanuki service wrapper configuration : Planon configuration : Tanuki for the application server configuration changes
Tanuki for the application server configuration changes
The following parameters define the memory settings:
# Initial Java Heap Size (in MB)
wrapper.java.initmemory= 2048
# Maximum Java Heap Size (in MB)
wrapper.java.maxmemory= 2048

Initially, the minimal and maximum settings are equal to provide the maximum memory size to the server immediately.
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For reasons of memory usage, you could set a lower minimum size, but this is not recommended (to prevent out-of-memory).
You could set a higher maximum size.