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duahimanshu816
Contributor
Contributor

virtualization performance depends on CPU's core only?

Hello Experts, 

thanks in advance. 

I have limited knowledge about virtualization, and I'm wondering about the relationship between hardware and virtual machine (VM) performance. If my hardware supports virtualization, does that automatically mean it will provide good performance for virtual machines? Or does hardware need to be specifically designed for virtualization, like supporting technologies such as SR-IOV?

For instance, my CPU is an Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS) it has 4 core out of 4 we allocated 2 cores to VM (only single VM running). my hardware does not support SRIOV, i have some performance issue in terms of throughput,  can anyone guide me what can be done if i want my hardware to worked appropriately with virtualization.  

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scott28tt
VMware Employee
VMware Employee

Is this about VMmark or just a more general question about VM performance on ESXi?

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duahimanshu816
Contributor
Contributor

its general question VM performance on ESXI

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CallistoJag
Hot Shot
Hot Shot

I mean this is fairly old kit so do not expect miracles. That said VM performance is based on a whole range of factors, RAM, cPU cores, CPU capabilities, datastore performance etc.... Just like a "real" computer, a VM faces the same challenges, for example a VM running windows with just 2 CPU cores, will not be ideal. Same with a windows VM running on say 1gb of RAM will have serious performance issues.
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