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Re: [Xen-devel] [PATCH]x86: Increase the default NR_CPUS to 128.



On 10/03/2010 14:38, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:

>>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 10.03.10 15:21 >>>
>> It would certainly be nice, but at least we can boot all CPUs and run VMs
>> across them, minus the finer-grained control. Is this halfway default
>> solution for these bigger machines worse than not making an effort at all?
> 
> Not sure - with NUMA also defaulting to on, guest creation may fail
> because of the failure to enforce the affinity. Not nice, especially
> since (I think; a general problem of the tools) the error indication is
> rather hard to interpret by someone not knowing the source code.

Hm, I didn't really think of that...

 -- Keir



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