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dseveretcshr
Contributor
Contributor
‎11-12-2017 09:27 AM

Number of sockets vs cores

Hi,

Can't find any relevant article about vmware  performance in case of multi socket architecture vs single socket. For instance if I have 2 CPUs of 8 cores (16) cores or single CPU with 16 cores, and I'm mapping 1 physical CPU  to 3 vCPUs.

Can anybody point difference between this two architecture that is relevant for performance?

Thanks

Dubravko

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dseveretcshr
Contributor
Contributor
‎11-12-2017 11:21 PM

Hi,

Thanks for your links, maybe I didn't explain it right, I'm focusing on physical architecture, physical sockets and cores, or maybe this articles can be mapped to real physical CPU-s that hypervisor uses.

Dubravko 

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bluefirestorm
Champion
Champion
‎11-14-2017 08:38 PM

If your question is about physical CPU/sockets (e.g. deploy ESXi server with 2 socket 12 core/thread CPU vs single socket 24 core/thread CPU), your question might as well be phrased along the lines of NUMA vs SMP.

I would suggest you read up on the differences between NUMA and SMP and then go back to the links to have any relevance to ESXi.

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vembutech1
Hot Shot
Hot Shot
‎11-14-2017 11:27 PM

As far as vCPU is concerned, both architecture are same. If you look for multiprocessing advantage by utilizing multicore, it purely depends on OS running on vm and the application utilise the vCPUs by setting affinity values.

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