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Date:      Tue, 26 Oct 1999 06:44:06 -0700
From:      David Greenman <dg@root.com>
To:        J McKitrick <jcm@dogma.freebsd-uk.eu.org>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: technical question about process loading 
Message-ID:  <199910261344.GAA22496@implode.root.com>
In-Reply-To: Your message of "Tue, 26 Oct 1999 13:33:39 BST." <Pine.BSF.4.02A.9910261328430.75309-100000@dogma.freebsd-uk.eu.org> 

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>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.


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