Alex - <aintokyo@xxxxxxxxxxx> writes: > Tom, Scott, Alvaro,thanks for the hints on this issue. It looks as if one of the EOD maintenance jobs which does a few extensive queries does push data out of memory leading to this behavior. > Is there a way to permanently cash some tables into memory? Not as such, and if there were it probably wouldn't be an overall performance win anyway, because you'd hurt your maintenance tasks. What you might consider doing is, at the end of the EOD sequence, run some dummy queries that scan the tables you use normally, causing them to get swapped back in so the cache is already primed when people come to work in the morning. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
