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Re: [Qemu-devel] QEMU NUMA and memory allocation problem
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] QEMU NUMA and memory allocation problem |
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Date: |
Thu, 16 May 2013 14:02:11 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
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.
Paolo