Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!rutgers!seismo!rochester!ken From: ken@rochester.ARPA (Comfy chair) Newsgroups: net.unix-wizards Subject: Re: brk's zero-fill behavior on VAXen :-) Message-ID: <22197@rochester.ARPA> Date: Thu, 6-Nov-86 16:06:28 EST Article-I.D.: rocheste.22197 Posted: Thu Nov 6 16:06:28 1986 Date-Received: Fri, 7-Nov-86 21:52:39 EST References: <7208@elsie.UUCP> <404@maynard.UUCP> <7210@elsie.UUCP> Reply-To: ken@rochester.UUCP (Comfy chair) Organization: U of Rochester, CS Dept, Rochester, NY Lines: 8 Re: hardware support for DoD (Destroy on Deallocation) Actually this idea was seriously suggested in one of the Multics papers (if I remember correctly), a hardware line that would reset all bits in a memory region. I surmise CPU speed has improved so much with respect to memory speed that this is no longer a significant penalty. Ken