Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!bloom-beacon!dont-send-mail-to-path-lines
From: gildea@expo.lcs.mit.EDU (Stephen Gildea)
Newsgroups: comp.windows.x
Subject: Re: Redrawing the Root background...
Message-ID: <9101231855.AA25315@excalibur.lcs.mit.edu>
Date: 23 Jan 91 18:55:14 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 11

Using xloadimage to put a large picture in your root creates a large
pixmap which the server must page in whenever it needs to expose more
of the root (as when you unmap or move a window).  How long it takes
is highly non-deterministic, as it depends on many factors such as how
much is paged out and how many other processes are running at the moment.
Perhaps the slowness you see when deiconifying a window is due to the
server competing for resources with the application, which must now
process its expose event(s).

 < Stephen
   MIT X Consortium