Re: [PATCH 01/05] NUMA: Generic code

[Magnus Damm <magnus.damm@gmail.com>]

On 11/15/05, Andi Kleen <ak@suse.de> wrote:
> On Tuesday 15 November 2005 09:34, Magnus Damm wrote:
>
> >
> > My plan with breaking out the NUMA emulation code was to merge my i386
> > stuff with the x86_64 code, but as you say - it might be overkill.
> >
> > What do you think about the fact that real NUMA nodes now can be
> > divided into several smaller nodes?
>
> Is it really needed? I never needed it.  Normally numa emulation
> is just for basic numa testing, and for that just an independent
> split is good enough.

For testing, your NUMA emulation code is perfect IMO. But for memory
resource control your NUMA emulation code may be too simple.

With my patch, CONFIG_NUMA_EMU provides a way to partition a machine
into several smaller nodes, regardless if the machine is using NUMA or
not.

This NUMA emulation code together with CPUSETS could be seen as a
simple alternative to the memory resource control provided by CKRM.

/ magnus

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