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Later is better, but only NAS with x86 cpu because PBS is only x86.

can you send as PM an unsigned built driver ? to do additional tests.

OK, So, perhaps Atom C3758R can handle 10 Gb/s only with offloading some process, which missing in a virtualized FreeBSD. Try with a Linux Firewall VM like ipfire. Also, someone do some tests : https://github.com/opnsense/src/issues/163

in OPNsense/pfSense, have you double checked if "hardware checksum offload" is disabled ?

Why not simply "host" type ?

same with virtio scsi driver version 0.1.208. same with virtio BLK. Slow winsat Disk Random 16.0 Read result is only on Windows system boot partition. (need tests with fio & CDM). Another partition in same virtual disk get better results, like an additional virtual disk. vDisk as SATA has same...

edit: others tests done, see my next post.

what about ubuntu VM to another ubuntu VM ? to get your internal virtio nic speed bounded to your CPU. iperf3 -P is CPU multithreaded only since version 3.16.

https://docs.netgate.com/pfsense/en/latest/recipes/virtualize-proxmox-ve.html#disable-hardware-checksums-with-proxmox-ve-virtio

afaik, size is cosmetic

from your ps output, it's virtio but you can switch to scsi as it's recommended. from your ps output, correct order is mine instead, you've reverse 2 and 3. media=disk doesn't exist in .conf

get them from -drive file from ps output : virtio1: /dev/disk/by-id/scsi-35000c500daafb71b virtio2: /dev/disk/by-id/scsi-35000c500daba084f virtio3: /dev/disk/by-id/scsi-35000c500dab91e37

Thanks for reminder.

edit: migration will be ok

i should convert gpt disk to mbr using gdisk. EFI Boot partition will become a standard FAT32 part, need boot flag. then install grub bootloader with proxmox-boot-tool, it can format then init /dev/sXn grub https://pve.proxmox.com/wiki/Host_Bootloader kernel will be copied to small FAT32, which...

#2 is right, not recommended, but if you know what you do, why not. make ZFS setup stickers then paste on disks as reminder.

unable to reproduce when CPU is ticked from Hotplug section of VM Options. ( virtio-win version = 0.1.240 ).

it's expected as local-lvm is only for VM storage. iso are stored in "local"

iperf3 single cpu thread test : edit: Windows VM to Windows VM running Epyc 7302 , 12,5 Gb/s. Windows VM to LXC = 18 Gb/s (same speed in reverse -R , 10 Gb/s) host > LXC 45 Gb/s vs host > Windows VM 10 Gb/s (on Laptop i7-6700HQ) Some others iperf3 : with host > LXC...

indeed, it's a common use case but OP seems need perfs over space.