PgCluu is a PostgreSQL performance monitoring and auditing tool. It is a Perl program used to perform a full audit of PostgreSQL cluster and system performance. It is divided in three parts:

pgcluu_collectd: collector used to grab statistics of the PostgreSQL cluster using the psql command line utility and sar from the sysstat package

pgcluu: generates static HTML output containing charts and graphs

pgcluu.cgi: generates dynamic HTML output containing charts and graphs