Windows Server 2025 performance on Intel Xeon 6517P

[linuxmc8]

Hi,
i installed a Windows Server 2025 VM on a Proxmox 9.2.2 node with 1 x Intel Xeon 6517P with 256GB RAM and SATA 6gb storage (3x SSDTC ER3 2TB on RAID-Z1 config).
The VM is set as follow:
CPU: 1 sock - 4 cores (x86-64-v4)
RAM: 8GB
Machine: pc-q35-11.0
SCSI controller: VirtIO SCSI single
Storage with discard, IOThread, SSD emulation enabled and cache=Write back.
OS Type: 11/2022/2025

virtio-win-0.1.271

The storage performances seems to be good (1 Gbyte/s R/W) but the VM is very slow during boot and running (5 seconds to start powershell and Edge for example).
I tried to change CPU from host" to x86-64-V2, V3, etc., increase RAM, change Machine type, etc. but without results.

Any ideas ?
Thank you very much.

 

[_gabriel]

Energy Saving in BIOS ?

 

[news]

and you use witch nvme storage ?
can you tell the real name?
my be not the right parts for zfs datasets, is dram and plp available?

 

[news]

And how do you setup and tune the zfs pool?

atime, autotrim, setup quota?
and the arc cache size is configured?

 

[linuxmc8]

and you use witch nvme storage ? 3x SSDTC ER3 2TB (sorry.... SATA 6Gb, not NVME)
can you tell the real name? Marco
my be not the right parts for zfs datasets, is dram and plp available? PLP yes, DRAM i don't find info about.

 

[linuxmc8]

And how do you setup and tune the zfs pool?

atime (ON), autotrim (OFF), setup quota (NO)?
and the arc cache size is configured YES, 16GB ?

 

[linuxmc8]

Problem solved by activating enterprise subscription and upgrading Proxmox to 9.2.20.
Thank you for your support.