Re: [Qemu-devel] QEMU NUMA and memory allocation problem

[Wanlong Gao]

On 05/16/2013 08:02 PM, Paolo Bonzini wrote:
> Il 16/05/2013 11:50, Wanlong Gao ha scritto:
>> To see that this 300M memory is allocated from host node0 again, but not 
>> host node1 as
>> I expected.
>>
>> We think that QEMU can't handled this numa memory allocation well, and it 
>> will cause the
>> cross node memory access performance regression.
>>
>> Any thoughts? Or, am I missing something?
> 
> Pinning memory to host NUMA nodes is not implemented.  Something like
> AutoNUMA would be able to balance the memory the right way.

Any plan to implement this? Or, handle this by QEMU is not necessary?
I just enabled AutoNUMA on the host kernel, but the memory allocation
numbers seems no change at all. Am I missing something?

Thanks,
Wanlong Gao

> 
> Paolo
> 
>