Path: utzoo!utgpu!watmath!att!dptg!rutgers!apple!brutus.cs.uiuc.edu!wuarchive!wugate!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.arch
Subject: Re: Memory utilization & inter-process contention
Message-ID: <2396@auspex.auspex.com>
Date: 30 Aug 89 17:36:33 GMT
References: <3332@blake.acs.washington.edu> <261500008@S34.Prime.COM> <249@gp.govt.nz> <2389@auspex.auspex.com> <AGLEW.89Aug29104841@chant.urbana.mcd.mot.com>
Reply-To: guy@auspex.auspex.com (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 5

>Simulate reference bits by making the page non-RW, and faulting when you
>try to read - voila, a reference, and then you just make the page readable.

Yes, that's the trick used by [34].xBSD; I was wondering whether VMS had
some other scheme that used neither real nor simulated reference bits.