Re: [Xen-devel] Re: NUMA and SMP

[tgh <tianguanhua@xxxxxxxxxx>]

Thank you for your reply



>   
> > in the smp with adm64 with the hardware of numa, its linux is a smp os 
> > ,then there is only one node (struct pglist_data) in the os when running 
> > or  there are as many nodes as cpus in the system,  does linux smp 
> > support two or more nodes when running? or in this case linux support 
> > numa feature?
> >     
> the number of nodes corresponds to the number of memory areas which
> allocators need distinguish. in the case of integrated memory
> controllers like amd64, expect to find as many nodes as there are
> processors. 
>
> yes, linux has numa support. see linux/Documentation/vm/
>   
linux has numa support,and in the case of integrated memory controllers 
like amd64, CONFIG_NUMA should be choice and linux support numa,is it 
right? if CONFIG_NUMA is not choice ,then linux could not work well in 
the case of integrated memory controllers even for amd64,is it right? 
and for the paravirt xen-guest-linux do not support  numa-aware  now ,or 
does it  support  numa-aware  if CONFIG_NUMA choiced?
Thanks in advance
> daniel
>
>   

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