NVMe SSD performance still not great in Workstation 16 Pro

This post was originally published on this site

Since VMware Workstation 14 (perhaps earlier) there have been performance problems when running a VM with an SSD virtual disk where the vdisk performance is much lower than what the SSD is capable of



Host system

OS: Windows 10 Pro 2004


CPU: AMD FX 8350 @ 4.12GHz (8 cores)

Storage: 2TB Sabrent Rocket NVMe M.2 PCIe 4.0 SSD




Virtualisation platforms

VMware Workstation 16 Pro

Windows 10 Hyper-V




Guest OS specs on both platforms

CPU: 4 cores


Storage: 64GB NVMe class thick provision (also tried SCSI for marginally better results on Workstation)

OS: Linux Mint 19.3 Tricia


Note: VMware tools was installed in the guest OS

Note: The tests were run with only one virtualisation platform being installed at a time so no co-existence causing any conflicts.

Note: On Hyper-V I had not got around to uninstalling VMware Tools and installing Hyper-V equivalent and the VM had been converted using the Starwind V2V Converter


I’ve had poor SSD performance on Workstation 14, 15 and now 16 with these huge I/O stalls.

The average read speed seems comparable to Hyper-V, but those dips are realtime and make the benchmark test take measurably longer than when run in Hyper-V.


VMware Workstation 16 Pro



Windows 10 Pro Hyper-V


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