Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!RICHTER.MIT.EDU!krowitz
From: krowitz@RICHTER.MIT.EDU (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Re:  Are 425s REALLY memory hogs?
Message-ID: <9106051356.AA08687@richter.mit.edu>
Date: 5 Jun 91 13:56:52 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The Internet
Lines: 18

What is *really* disturbing is that not only is the virtual address
size (SZ) much larger, but the physical RAM size (RSS) is larger!
340Kb to run "sleep"?! It's no more than a 100 line program!

One thing comes to mind ... I think I remember reading (where?) that
the segiment size (size of the chunks of memory which the MMU maps
into RAM) had been increased from 32Kb with the 68020/68030 MMU's to
256 Kb with the 68040 MMU. Of course, I'm getting old and grey, and
I can't be relied upon to remember the exact numbers (or even the
correct answer ;-) ).


 -- David Krowitz

krowitz@richter.mit.edu   (18.83.0.109)
krowitz%richter.mit.edu@eddie.mit.edu
krowitz%richter.mit.edu@mitvma.bitnet
(in order of decreasing preference)