From owner-freebsd-questions Tue Oct 26 6:48:14 1999 Delivered-To: freebsd-questions@freebsd.org Received: from implode.root.com (root.com [209.102.106.178]) by hub.freebsd.org (Postfix) with ESMTP id D729314CB7 for ; Tue, 26 Oct 1999 06:48:12 -0700 (PDT) (envelope-from dg@implode.root.com) Received: from implode.root.com (localhost [127.0.0.1]) by implode.root.com (8.8.8/8.8.5) with ESMTP id GAA22496; Tue, 26 Oct 1999 06:44:06 -0700 (PDT) Message-Id: <199910261344.GAA22496@implode.root.com> To: J McKitrick Cc: freebsd-questions@FreeBSD.ORG Subject: Re: technical question about process loading In-reply-to: Your message of "Tue, 26 Oct 1999 13:33:39 BST." From: David Greenman Reply-To: dg@root.com Date: Tue, 26 Oct 1999 06:44:06 -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >I don't know if this question belongs here or not, but i'll give it a >shot. If i'm in the wrong place, let me know and i'll re-post elsewhere. > >I just read something very interesting about Linux program execution, and >i was wondering how FBSD compares in this respect. > >"The loading of a binary file into physical memory is not performed by the >binary loader under Linux. Rather, the pages of the binary file are >mapped into regions of virtual memory. Only when the program tries to >access a given page will a page fault result in the loading of that page >into physical memory." > >Does FBSD have a similar mechanism? Yes, FreeBSD works the same way. We call this "demand paged virtual memory". -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org Creator of high-performance Internet servers - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message