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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: net.unix-wizards
Subject: Re: brk's zero-fill behavior on VAXen
Message-ID: <5142@brl-smoke.ARPA>
Date: Mon, 3-Nov-86 13:49:19 EST
Article-I.D.: brl-smok.5142
Posted: Mon Nov  3 13:49:19 1986
Date-Received: Tue, 4-Nov-86 02:28:52 EST
References: <7208@elsie.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

In article <7208@elsie.UUCP> ado@elsie.UUCP (Arthur David Olson) writes:
>Can system performance be improved by avoiding zero filling of the new
>memory?

It seems likely that zero-filling is primarily for system security,
to prevent one process from snooping on pieces left over from another.