Cacti

I should also point out that pgsnmpd v 1.0 doesn't support some aspects of RDBMS-MIB, for such reasons as that bit just hasn't been written yet or that measurement doesn't make sense for PostgreSQL.

Right now pgsnmpd only supports RDBMS-MIB (defined in RFC 1697 and attached to this message). That MIB has some useful information, but not a lot, to be honest. Future versions of pgsnmpd should include a new PGSQL-MIB which will have loads of useful stuff, though exactly *what* useful stuff remains...