From owner-freebsd-hackers Tue Aug 22 12:13:56 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from obie.softweyr.com (obie.softweyr.com [204.68.178.33]) by hub.freebsd.org (Postfix) with ESMTP id 92AB237B424 for ; Tue, 22 Aug 2000 12:13:52 -0700 (PDT) Received: from softweyr.com ([208.187.122.225]) by obie.softweyr.com (8.8.8/8.8.8) with ESMTP id NAA17583; Tue, 22 Aug 2000 13:13:19 -0600 (MDT) (envelope-from wes@softweyr.com) Message-ID: <39A2D25D.4CC11C6D@softweyr.com> Date: Tue, 22 Aug 2000 13:19:57 -0600 From: Wes Peters Organization: Softweyr LLC X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 4.1-RC i386) X-Accept-Language: en MIME-Version: 1.0 To: Jonathan Lemon Cc: seebs@plethora.net, hackers@FreeBSD.ORG Subject: Re: Advanced OS Questions only you can answer... References: <200008221714.e7MHEbL05793@prism.flugsvamp.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Jonathan Lemon wrote: > > In article you write: > >>2. How does the OS manage main memory and does it manage secondary storage > >>to back up main memory. I need on algorithm and one structure to show this > >>management...along with how they relate to the management. > > > >The OS manages main memory by breaking it up into 8 1/2 by 11 sections of bits > >called "pages". (The 1/2 is used for parity.) > > Yes, but this is not portable. For a better fit, the OS should strive > to maintain ISO 216 compliance as well, if possible. There is a kernel option to use A4 pages, IIRC. -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC wes@softweyr.com http://softweyr.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message