Sorry, I didn't attach vmstat, the system does actively swap pages. Not to the point where it crawls, but for some brief periods the console becomes a bit unresponsive. I am taking this as a sign to prevent future problems.
anjan -----Original Message----- From: Jeff [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 27, 2005 2:30 PM To: Anjan Dave Cc: pgsql-performance@postgresql.org Subject: Re: [PERFORM] Why is this system swapping? On Apr 27, 2005, at 1:48 PM, Anjan Dave wrote: > As you can see the system starts utilizing swap at some point, with so > many processes. Some time ago we had decided to keep the connections > from the pool open for longer You've shown the system has used swap but not that it is swapping. Having swap in use is fine - there is likely plenty of code and whatnot that is not being used so it dumped it out to swap. However if you are actively moving data to/from swap that is bad. Very bad. Especially on linux. To tell if you are swapping you need to watch the output of say, vmstat 1 and look at the si and so columns. Linux is very swap happy and likes to swap things for fun and profit. -- Jeff Trout <[EMAIL PROTECTED]> http://www.jefftrout.com/ http://www.stuarthamm.net/ ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
