Maybe I will try to check if VMWare ESXi is introducing the same level of performance degradation for level 1 guests.ĮDIT: I have just checked on VMWare ESXi 6.7.0 Update 1 on the same hardware. However I may be wrong.Ī year ago I was working on nested virtualization done using VMWare ESXi on the same hardware and didn't notice such performance degradations, however I do not have the exact numbers now. Does anyone is also observing such I have seen that article before, but I think it is talking about performance hit seen in the Level 2 Guest (that is the nested virtual machine) not the virtual machine that hosts it. As soon as I disable nesting for the VM its performance comes back to normal levels. Such degradation is noticeable everywhere - even opening explorer window start to be sluggish. For example Cinebench R20 score in that VM before enabling nested virtualization is 3100-3400, but after enabling nesting the score goes down to 1600-2100 levels (no nested virtual machine is running in background). However, I don't know if this is related only to AMD (I don't have Intel system now to test this) or is it just nesting itself, but as soon as I enable nesting for a VM, I see very significant performance degradation in that VM even when the VM is currently not running any nested virtual machine inside. I have even downloaded an evaluation ISO and checked by myself and I can confirm, that nesting is working fine on my Ryzen 7 3700X. Yes - it fully supports nesting on AMD Hardware, its default HYPER-V configuration version is 10.0, and since 9.3 version nesting is fully supported on AMD platform.
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