November 30, 20223 yr I have a Gigabyte X99 Board with a Xeon 2699 v3 and 128 GB Ram For testing purposes I installed WIndows 10 on a 500 GB SSD Sata drive from Samsung. I also installed UNRAID (6.11.5) and with a 2 TB NVME Samsung SSD (installed in a 2x Port = 800 MB/S max.) and installed a VM with Windows 10 with 64 GB RAM - all 18 (36) cores are used as with the bare metal install. Geekbench 3 perfomance: Bare Metal: Single Core: 3.487 Multi Core: 45.575 VM: Single Core: 2.973 Multi Core: 39.148 In total I am losing around 15% CPU performance by using a VM. Surprisingly there is barely a difference in passing the VM trough to the CPU or using the CPU emulation. Is this in general the amount of performance loss that goes with using a VM in UNRAID? For many applications the loss may be unimportant. I wanted to build a audio workstation as VM to be able to update my hardware easier in the future. For this purpose 15% is a bit high. Should be similar for a gaming machine. Or is there hardware that is better suited for VMs? Edited November 30, 20223 yr by typewriter
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