Dynamic NUMA support lacking; please port numad

Asked by Jernej Jakob on 2014-07-11

In order to achieve optimal performance on NUMA systems architecture, a process and its memory need to be on the same NUMA node. While there currently is a way to achieve this with vcpu pinning and strict allocation policy, it is tedious to set up, requiring manual administrator intervention for each domain and careful planning of resources.
A much better way in terms of simplicity is to automate this process. This is already implemented in Fedora and other distributions in the form of "numad"[1].

For implementation a port of numad with dependencies and libvirt compiled with "--with-numad=yes" is required. I think this would be a significant improvement for NUMA architecture with minimal effort as the code is already functioning and tested.

[1] https://git.fedorahosted.org/git/numad.git

Question information

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Ubuntu libvirt Edit question
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Last query:
2014-07-11
Last reply:
2014-07-12

I suggest you report a bug

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