On Thu, 2005-05-12 at 12:46, Kavan, Dan (IMS) wrote: > Do psql calls/procedures access resources reserved from the > kernel.shmmax? Only in the sense that it can execute a query, which in the backend could therefore use shared memory. psql, itself, doesn't use shared memory. > How about the tar or copy sysadmin commands? I would guess they don't > use kernel.shmmax resources. Correct. Actually, very few types of programs use shared memory. > Finally, work memory alos does not access > resources reserved from kernel.shmmax, correct? Correct. The only parts of postgresql.conf that affect shared memory usage are max connections, shared buffers, and the fsm.
