[ADMIN] HELP: optimizing shared mem

[hal]

I am running Postgresql-7.3.2 on FreeBSD 4.7 with 512M of mem.

The application is a web based data warehouse with ~200 users.

I am trying to optimize performance.  In postgresql.conf I
have set:
        shared_buffers to 16000
        sort_mem to 8000
What are max_fsm_relations and max_fsm_pages and what should
they be set to?
Just in case there are some FreeBSD Wizards in the group,
how do I lock the kernel buffers in memory?
hal

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