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Re: [PATCH 3/3] numa: Initialize node initiator with respect to .has_cpu


From: Michal Privoznik
Subject: Re: [PATCH 3/3] numa: Initialize node initiator with respect to .has_cpu
Date: Fri, 29 May 2020 17:24:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1

On 5/29/20 5:09 PM, Igor Mammedov wrote:
On Fri, 29 May 2020 15:33:48 +0200
Michal Privoznik <mprivozn@redhat.com> wrote:

The initiator attribute of a NUMA node is documented as the 'NUMA
node that has best performance to given NUMA node'. If a NUMA
node has at least one CPU there can hardly be a different node
with better performace and thus all NUMA nodes which have a CPU
are initiators to themselves. Reflect this fact when initializing
the attribute.

It is not true in case of the node is memory-less

Ah, so the node has CPUs only then? Okay, right now my libvirt patches don't allow that, but formatting initator for all NUMA nodes should be trivial.

Michal




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