Date: Tue, 27 Nov 2001 21:52:36 +0000 From: setantae <setantae@submonkey.net> To: =?iso-8859-1?Q?G=E9rard?= Roudier <groudier@free.fr> Cc: Andrey Pugachev <A110C@svs.ru>, freebsd-hackers@FreeBSD.ORG Subject: Re: Does FreeBSD support copy-on-write pages? Message-ID: <20011127215236.GA16727@rhadamanth> In-Reply-To: <20011127182404.F2369-100000@gerard> References: <20011127190515.GA15358@rhadamanth> <20011127182404.F2369-100000@gerard>
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On Tue, Nov 27, 2001 at 06:31:31PM +0100, Gérard Roudier wrote: > > > On Tue, 27 Nov 2001, setantae wrote: > > > On Tue, Nov 27, 2001 at 06:54:17PM -0000, Andrey Pugachev wrote: > > > I am just curious, can FreeBSD kernel perform function called copy-on-write? > > > > As far as I am aware, the BSD family of operating systems have always > > used copy-on-write (at least since 4.3BSD). > > My awareness is different and tells me that 4.3BSD had just vfork() but > not COW yet, while System V had it years before. Sorry if I am wrong. You're not. My bad. At home now, and checking my daemon book I see SystemV, Release 2 got it in 1984, and it was introduced in 4.4BSD in 1993. Ceri -- keep a mild groove on To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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