Re: Linux/Pro [was Re: Coding style - a non-issue]

Rik van Riel
2001-12-04T23:32:16Z

On Tue, 4 Dec 2001, Martin J. Bligh wrote:

> > Premise 3: it is far easier to take a bunch of operating system images
> > and make them share the parts they need to share (i.e., the page
> > cache), than to take a single image and pry it apart so that it
> > runs well on N processors.
>
> Of course it's easier. But it seems like you're left with much more
> work to reiterate in each application you write to run on this thing.
> Do you want to do the work once in the kernel, or repeatedly in each
> application?

There seems to be a little misunderstanding here; from what
I gathered when talking to Larry, the idea behind ccClusters
is that they provide a single system image in a NUMA box, but
with separated operating system kernels.

Of course, this is close to what a "single" NUMA kernel often
ends up doing with much ugliness, so I think Larry's idea to
construct NUMA OSes by putting individual kernels of nodes to
work together makes a lot of sense.

regards,

Rik
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