Re: performance problem when running java applications overnight

From: Skip (a_at_b.invalid)
Date: 10/15/04 

Date: Fri, 15 Oct 2004 15:17:44 +0200

"york" <ilcunl@yahoo.com> wrote in message
news:ab079826.0410150416.405400e7@posting.google.com...

> I'm having problems with Java applications that I use and develop on
> Windows systems (I have seen on XP and Win2k, not sure if the same
> problem exists under Linux). What happens is that I use the
> applications all day long and then go home at night. I leave my
> computer running and I may or may not minimize the various
> application. At night, the computer remains running but idle with
> the console locked (doesn't go into standby or spin down harddrives--I
> know, waste of electrity but it is company policy so that the
> virus-scan/backups can occur).

You might have more than enough _free_ RAM, but the OS will start swapping
anyway (if available). The whole app might be swapped and retreived again in
small parts when those parts are required, which could explain the long time
of interaction with the GUI before everything speeds up again.

If this is the case: the more interaction, the faster things are back to
normal. You could try to disable the pagefile for one night, if possible,
and check the results.

> I'd hate for my users to experience this problem with my application.

It isn't really normal to have a GUI open (and inactive) overnight AFAIK.
Little chance this will happen to the average user (if that is your target).

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