Scott, > It seems that each of the server postmaster.exe processes takes up > approx. 5 MB of server memory (the "virtual memory size" column in task > manager), and I guess this truly is the private memory these processes > require. This number is roughly the same for 8.4 and 9.0 . > > Task manager is mis-leading as multiple processes are sharing memory. > You need process explorer That's exactly why I did not use the "default" columns of the Task Manager, but "virtual memory size". I now compared the numbers to the "private memory" column of Process Explorer, and Process Explorer shows about 800k even more usage the the Task Manager. It is still about 5 MB of private memory per "idle" backend process. Is there anything I can do to optimize? Thanks again, -hannes -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general