Workstation Pro 16.2.4 - Performance difference between NVMe & SCSI drives

[Tony_Goodhew]

Hi All,

I have a Windows 11 machine with an Intel i9-12900K running Windows 11 Enterprise 21H2 - I was trying to create a Windows 11 Enterprise VM and the performance was abysmal. After some web searching, I found a post that seemed to indicate that changing the client virtual disk from NVMe to SCSI dramatically improved the performance.

Using this I can confirm that it really does make a difference so I'm wondering if there is something in the configuration of my host machine that would cause this to manifest.

Does anyone have any thoughts or insights?

Thanks.

[Squareball]

My Windows 11 VM performance plummeted after upgrading to v16.2.4 so rebuilt it using a SCSI controller and the performance is now fine.

Something has definitely broken in v16.2.4.

[dlhtox]

As an FYI, here is my performance in Workstation 17.

NvME seems to be strong in some areas and not as much in others.   Also, the top speed we see if 2827 on read and 2629 on write is nowhere near the speed of my NvME host drive.  I built a new system with the latest and greatest NvME mainly for VMWare Workstation and it is disappointing it is not even half as fast as the host NvME.

Hyper-V tests out around the same as the host drive.

I have a very large program I install and it takes 21 minutes to install on VMWare Workstation 17 and 15 minutes on Hyper-V.