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From: Tommy Reynolds <reynolds@redhat.com>
To: Horst von Brand <vonbrand@inf.utfsm.cl>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Demand paging - Kernel
Date: Tue, 18 Mar 2003 09:08:00 -0600	[thread overview]
Message-ID: <20030318090800.57118796.reynolds@redhat.com> (raw)
In-Reply-To: <200303172159.h2HLxsQY025585@pincoya.inf.utfsm.cl>

Uttered Horst von Brand <vonbrand@inf.utfsm.cl>, spoke thus:

> Tommy Reynolds <reynolds@redhat.com> said:
> > Uttered "Breno" <brenosp@brasilsec.com.br>, spoke thus:
> > > There is a possibility  to do demand paging in kernel space address ?
> > No.  The entire kernel, and all  of its data structures, are resident in
> > memory  all of  the time.
> The cost of doing it right in a monolitic kernel would probably outweigh
> the gains manyfold, and require massive redesign for Linux. In microkernels
> it is a lot easier to do (but their performance sucks baby elephants
> through straws, so they are moot :-)

Dr. von Brand,

Thanks for  following up on  this.  You are  right, of course:  with the
source code and  enough patience anything could be  crafted.  I answered
in the sense of "is this currently implemented", and it's not ;-)


  reply	other threads:[~2003-03-18 14:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-15 16:29 Breno
2003-03-17 14:35 ` Tommy Reynolds
2003-03-17 21:59   ` Horst von Brand
2003-03-18 15:08     ` Tommy Reynolds [this message]
2003-03-16  2:11 Felipe Alfaro Solana
2003-03-16 15:44 ` Breno

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