Memory Usage

Hey,
I'm running Namazu on an extremely robust UNIX system with 4 gigabytes of
memory.  In the mknmzrc configuration file I set the ON_MEMORY_MAX to use
about 2 gigabytes of that memory but Namazu doesn't seem to be using any of
the memory I allocated to it.  When I use the top command to see how mush
memory Namazu is using it's about 30-40 megs.  Can anyone offer any
suggestions or any help?  This is a bug with Namazu?

Thanks,
Leon