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CVM Uses Dynamic Memory - Why?

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CVM Uses Dynamic Memory - Why?

Our CVMs are configured with 32GB of dynamic memory. Start, minimum and max are all set to 32GB. I'm curious to know why Dynamic Memory is enabled on these VMs?

 

Since the CVM's OS isn't fully Hyper-V integrated, we don't see memory demand from the hypervisor (this is the only benefit I see from leaving dynamic memory enabled on a VM with all values set the same). 

 

As an explicit downside, since we're using Dynamic Memory on these VMs, we lose the vNUMA featureset (not that a 32GB VM is likely to benefit from it). 

 

Thanks!

 

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Nutanix Employee

Re: CVM Uses Dynamic Memory - Why?

@Coleman

 

Sorry for the delayed response here.  As you mentioned we do not benefit from vNUMA and the current configuration was a workaround for a Hyper-V bug.  We're looking at changing this back to static in future releases assuming the original issue has been resolved. 

 

Thanks,

Mike

2 REPLIES
Nutanix Employee

Re: CVM Uses Dynamic Memory - Why?

@Coleman

 

Sorry for the delayed response here.  As you mentioned we do not benefit from vNUMA and the current configuration was a workaround for a Hyper-V bug.  We're looking at changing this back to static in future releases assuming the original issue has been resolved. 

 

Thanks,

Mike

Hero

Re: CVM Uses Dynamic Memory - Why?

Hi @Coleman

 

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Thanks and looking forward to seeing you at .NEXT