Re: 2.7 thoughts

[YoshiyaETO <eto@soft.fujitsu.com>]

> I don't see any reason to connect it with the notion of a node.
    If the word "Node" is not so appropriate, I will use "Unit".
And I also make it simple, "Unit" will have CPUs and/or Memory.
On the other hand IO-Unit will have IOs.

> The main points of contention would appear to be cooperative vs.
> forcible (where I believe cooperative is acknowledged as the only
    I could not understand what is forcible.
Everything should be cooperative, I think.

----- Original Message ----- 
From: "William Lee Irwin III" <wli@holomorphy.com>
To: "YoshiyaETO" <eto@soft.fujitsu.com>
Cc: "Stuart Longland" <stuartl@longlandclan.hopto.org>;
<linux-kernel@vger.kernel.org>; "Stephan von Krawczynski"
<skraw@ithnet.com>; <lgb@lgb.hu>; <Fabian.Frederick@prov-liege.be>
Sent: Friday, October 10, 2003 4:40 PM
Subject: Re: 2.7 thoughts


> On Fri, Oct 10, 2003 at 04:19:46PM +1000, Stuart Longland wrote:
> >>> * hotplug motherboard & entire computer too I spose ;-)
>
> > From: "William Lee Irwin III" <wli@holomorphy.com>
> >> Um, this is worse than the above wrt. being too vague.
>
> On Fri, Oct 10, 2003 at 04:30:27PM +0900, YoshiyaETO wrote:
> > "Hotplug node" is a better explanation, I think.
> > "Node" includes CPUs and/or Memory and/or some kind of IOs.
> > And "Node" should be flexibly configurable also.
>
> I don't see any reason to connect it with the notion of a node.
>
> The main points of contention would appear to be cooperative vs.
> forcible (where I believe cooperative is acknowledged as the only
> feasible problem), and the potential connections with ZONE_HIGHMEM
> wrt. constraints that would artificially introduce to 64-bit kernels.
>
> The fact some systems would want to do whole nodes at a time with
> some cpus and io buses in tandem is largely immaterial and doesn't
> simplify, complicate, or otherwise affect the VM mechanics.
>
> -- wli
> -
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