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On vmware there are CPU Overcommit ratio, on azure is there any kind of this? How many ratio used by azure for each one physical core?
Hi @Handian Sudianto
Is this a comparison between actual VMware VM and Azure VM? or Azure VMware solution and azure VM?
Hi @Prrudram-MSFT , between actual VMware VM and Azure VM i mean
Hi @Handian Sudianto ,
the ratio of vCPU and physical CPU core are depending on the VM series and listed here:
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Regards
Andreas Baumgarten
HI @Andreas Baumgarten
So if we see on this table, 1 physical core is used by 1 vCPU for B series and 1 Physical core is used by 2 vCPU for D_v3 series? Is my understanding correct?
Hi @Handian Sudianto ,
yes, that's my understanding based on this table as well.
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten
Hello Handian Sudianto
In VMware, the CPU overcommit ratio specifies the number of virtual CPUs that can be assigned to a virtual machine per physical core. In Azure, the equivalent feature is called vCPU-to-core ratio, which specifies the number of virtual CPUs that can be assigned to a virtual machine per physical core.
The default vCPU-to-core ratio in Azure is 8:1 for most big VM sizes, but it can vary depending on the VM size and the region. It's important to note that oversubscribing CPUs can impact performance, so it's recommended to monitor CPU usage and adjust the ratio as needed. As suggested by Andreas Baumgarten you can check the SKU sizes with vCPU:Core ratio.
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