>> Read cache of course does not need to be flushed and can simply be >> dumped when the memory is needed, and so Linux will keep more or >> less unlimited amounts of read cache until it needs the memory for >> something else .... > > Right, that's the normal behavior. Except not on this machine.
So this turned out to be a Linux kernel issue. Will document it on www.databasesoup.com. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
