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Assign vcpu to core siblings performance

asked 2020-03-30 10:44:41 -0500

darkglobe gravatar image

Hello All,

I am wondering, what is consideration and performance impact if I setup a instance of 2 vcpu with hw_policy=dedicated, where both of vcpu pinning into both siblings of a core in single numa node. Or, does performance will better if vcpu pinning into single sibling in different core in single numa node?

Thank you.

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Core 1 takes longer to access RAM of core 2 than its own RAM.

Bernd Bausch gravatar imageBernd Bausch ( 2020-03-30 14:11:29 -0500 )edit

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answered 2020-04-21 22:59:24 -0500

darkglobe gravatar image

I found a slide presentation from Ian Jolliffe : "Nova Scheduler:Optimizing, Configuring And Deploying NFV VNF's On OpenStack".

More less, I think his slides answer my questions above.

https://www.openstackcanada.com/s/Nov...

thank you

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Asked: 2020-03-30 10:44:41 -0500

Seen: 17 times

Last updated: Apr 21