brk's zero-fill behavior on VAXen

[Doug Gwyn]

In article <7208 at elsie.UUCP> ado at 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.