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Article #1497

Re: swapfile & swapfile.front & IB

#1497
From: Scott Turner
Date: Tue, 13 Oct 1992 08:34
53 lines
2823 bytes
In article <1992Oct12.032523.5364@netcom.com> vin@netcom.com (Vin Locke)  
writes:
|> In article <1992Oct8.005015.8246@cube.handheld.com> jmd@cube.handheld.com  
(Jim De Arras) writes:
|> >In article <1asfr0INN3cv@uwm.edu> xepo@csd4.csd.uwm.edu (Scott R Violet)  
|> >writes:
|> >> 
|> >> HI,
|> >> 	I recently installed 3.0 on my station and have a few
|> >> questions.  When I noticed that my HD size was slowly going up and
|> >> down, I decided to look what files kept changing.  When I looked in
|> >> /private/vm I noticed that there where two swapfiles, swapfile and
|> >> swapfile.front.  What is the difference between the two?  I thought
|> >> that on 2.1 there was only one.
|> >> [stuff deleted]
|> >> 		-Scott Violet (xepo@csd4.csd.uwm.edu)
|> >
|> >According to most folks here, you are seeing things! Just think how much  
more  
|> >it's doing for you, now, and you'll feel better!  :-)
|> >
|> >Jim
|> >
|> 	I, too, found a swapfile.front in addition to my swapfile after I
|> did the 3.0 upgrade.  It bothered me, so I tried a few stunts, like editing
|> /etc/swaptab so my file was named swapfile.front ; I rebooted, and you know
|> what I found? In addition to swapfile.front, there was now a 
|> swapfile.front.front file!
|> Weird thing is that the swapfile.front file is no longer being created, but  
I
|> don't know why it stopped.  The another weird thing was that when I was  
getting
|> this swapfile.front (no, Scott, you weren't seeing things), the "mount"  
utility
|> was reporting "/Internal/vm/swapfile.front" as a device! Internal is a hard 
|> disk mount of /dev/sd1a, which did show up as it should when calling mount,  
so
|> mount was showing 3 devices when I only had two.  I looked through the 
|> doc files and could find no mention of this -- strange.  Perhaps this is a
|> new Mach feature in 3.0.
|> 	If someone out there is in the know about this, please post us
|> a little something.
I guess you guys aren't unix propeller heads.

For an explanation of the front file just fire up a terminal window and
type "df".

Yep, that's right, your NeXT is now equipped with a new filesystem type, a
swap filesystem. One feature of this is that you can see the swaptimizer in
action, the difference in size twixt swapfile and swapfile.front shows you
how much compression you're getting on your swap space.

Scotty
Technical Details
Message-ID: <1992Oct13.083411.6798@gagetalker.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!rpi!psinntp!psinntp!l5next!scotty
References: <1992Oct12.032523.5364@netcom.com>

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Newsgroups: comp.sys.next.sysadmin
Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!rpi!psinntp!psinntp!l5next!scotty
From: scotty@gagetalker.com (Scott Turner)
Subject: Re: swapfile & swapfile.front & IB
Message-ID: <1992Oct13.083411.6798@gagetalker.com>
Sender: scotty@gagetalker.com
Organization: L5 Computing
References: <1992Oct12.032523.5364@netcom.com>
Distribution: usa
Date: Tue, 13 Oct 1992 08:34:11 GMT
Lines: 53