Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!LUCID.COM!eb
From: eb@LUCID.COM (Eric Benson)
Newsgroups: gnu.emacs
Subject: File mapping
Message-ID: <8906132352.AA00905@blacksox>
Date: 13 Jun 89 23:52:32 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 4

Has anyone considered creating file buffers by mapping the file into
Emacs' address space with copy-on-write access on systems that support
it?  I believe PDP-10 Emacs did this on Tops-20.  I know SunOS 4.0 and
Mach support copy-on-write.