Thanks,I am already have started doing that. i.e. running the dummy task to get the tables loaded again and it worked fine today. regardsAlex
> To: ainto...@hotmail.com > CC: scott.marl...@gmail.com; pgsql-general@postgresql.org > Subject: Re: [GENERAL] PL/Perl Performance Problems > Date: Sun, 20 Dec 2009 22:39:00 -0500 > From: t...@sss.pgh.pa.us > > Alex - <ainto...@hotmail.com> 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@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general _________________________________________________________________ Get more out of Hotmail Check out the latest features today http://windowslive.ninemsn.com.au/hotmail/article/878466/your-hotmail-is-about-to-get-even-better
