Hi
I have two VM's on the same server with a Samsung 990 Pro 2TB NVME drive and the Windows VM disk access is much slower than the Linux one. Does anyone know how to improve the Windows VM disk speed? Below is my Windows VM config as well as a screen shot from Crystal Mark for both VMs. The one in green is the Windows VM and the one in blue is the Linux VM. I was able to disable VBS in Windows 11 and that improved the results but they still lag behind Linux by quite a margin. I am running on Minisforum X1 Pro AI with 128gig of ram and 2TB Samsung 990Pro NVME drive.
Thanks,
Simon
bios: ovmf
boot: order=scsi0;ide2;ide0;net0
cores: 12
cpu: x86-64-v2-AES
efidisk0: local-lvm:vm-101-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
ide0: local:iso/virtio-win-0.1.271.iso,media=cdrom,size=709474K
ide2: local:iso/en-us_windows_11_iot_enterprise_ltsc_2024_x64_dvd_f6b14814.iso,media=cdrom,size=5024236K
machine: pc-q35-10.0
memory: 32768
meta: creation-qemu=10.0.2,ctime=1754358723
name: WinLTSC
net0: virtio=BC:24:11:B9:FC:4E,bridge=vmbr0
numa: 1
onboot: 1
ostype: win11
scsi0: Main2TB:vm-101-disk-0,cache=writeback,discard=on,iothread=1,size=500G
scsihw: virtio-scsi-single
smbios1: uuid=681ca1b8-f369-47b8-b26c-b29946db1343
sockets: 1
tpmstate0: local-lvm:vm-101-disk-2,size=4M,version=v2.0
usb0: host=3-4,usb3=1
vcpus: 12
vga: virtio
vmgenid: 38c97789-8d4e-4f89-a4fb-d1e599e43d7c
root@minipc:~#
I have two VM's on the same server with a Samsung 990 Pro 2TB NVME drive and the Windows VM disk access is much slower than the Linux one. Does anyone know how to improve the Windows VM disk speed? Below is my Windows VM config as well as a screen shot from Crystal Mark for both VMs. The one in green is the Windows VM and the one in blue is the Linux VM. I was able to disable VBS in Windows 11 and that improved the results but they still lag behind Linux by quite a margin. I am running on Minisforum X1 Pro AI with 128gig of ram and 2TB Samsung 990Pro NVME drive.
Thanks,
Simon
bios: ovmf
boot: order=scsi0;ide2;ide0;net0
cores: 12
cpu: x86-64-v2-AES
efidisk0: local-lvm:vm-101-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
ide0: local:iso/virtio-win-0.1.271.iso,media=cdrom,size=709474K
ide2: local:iso/en-us_windows_11_iot_enterprise_ltsc_2024_x64_dvd_f6b14814.iso,media=cdrom,size=5024236K
machine: pc-q35-10.0
memory: 32768
meta: creation-qemu=10.0.2,ctime=1754358723
name: WinLTSC
net0: virtio=BC:24:11:B9:FC:4E,bridge=vmbr0
numa: 1
onboot: 1
ostype: win11
scsi0: Main2TB:vm-101-disk-0,cache=writeback,discard=on,iothread=1,size=500G
scsihw: virtio-scsi-single
smbios1: uuid=681ca1b8-f369-47b8-b26c-b29946db1343
sockets: 1
tpmstate0: local-lvm:vm-101-disk-2,size=4M,version=v2.0
usb0: host=3-4,usb3=1
vcpus: 12
vga: virtio
vmgenid: 38c97789-8d4e-4f89-a4fb-d1e599e43d7c
root@minipc:~#