SSD performance in VMware Workstation 16 still not great whereas Hyper-V is like native

[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](https://communities.vmware.com/thread/577888)

**Host system**

**OS:** Windows 10 Pro 2004

**RAM:** 32GB DDR3

**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

**RAM:** 8GB

**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](https://www.starwindsoftware.com/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**


[Look at those craters](https://preview.redd.it/pnmhrgyqsmn51.png?width=625&format=png&auto=webp&s=8239d94011df3c851c5fbbeb8692cf8dca13bf45)


**Windows 10 Pro Hyper-V**


[Like native performance](https://preview.redd.it/2pk17mnysmn51.png?width=625&format=png&auto=webp&s=99dde4da25f3a895fc090243ba8e85d4ad58e748)

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