Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!apple!voder!zok!mark
From: mark@zok.UUCP (Mark W. Snitily)
Newsgroups: comp.windows.x
Subject: Re: window manager swapping (was Re: Another R5 wish)
Message-ID: <490@zok.UUCP>
Date: 25 Sep 90 16:55:54 GMT
References: <235@grapevine.EBay.Sun.COM> <9009041636.AA23617@hansen.com> <489@zok.UUCP>
Organization: The distant planet Zok
Lines: 34

In article <489@zok.UUCP> I wrote:

[stuff about setting twm's sticky bit on]

>In other words, it won't get swapped out.

Opps, how embarrassing.  Before there's a flood of followups please let me
correct my spreading of misinformation.  Setting the sticky bit will *NOT*
prevent the window manager from getting swapped out.  Actually what will
happen is that when you exit X (or simply kill twm) twm will stay around
in swap until you start it up again.  Somewhat useful for applications
like emacs where you terminate it and start it up a number of times,
but not useful for a client like twm where it's started only once.
Let me repeat, setting the sticky bit has *nothing* to do with keeping
a process in physical memory.

(This'll teach me not to post an article long after I should have gone to
bed.  :-)  Thanks to everyone who quickly pointed out my erroneousness
posting.


Out of curiosity, on the topic of swapping, do any of the new OS's
(e.g. System V Release 4, BSD 4.4, OSF 1, etc.) provide a mechanism
for preventing a specified process from being swapped out?

-- Mark

Mark W. Snitily                 Consulting Services:
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Cupertino, CA 95014             (408) 252-0456
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