KVM performance and experience

[binaryanomaly]

Hi,

Anyone using KVM and can share experiences regarding configuration and performance?

I wasn't able to get it running on Q35/UEFI which probably would result in another performance boost.

Current KVM VM setup
- i440FX UEFI
- VirtIO Disk
- VirtIO NICs

VM sizing
- 4 vCPUs
- 8 GB RAM

With this I'm able get around 2 Gbps trhoughput with Suricata and Sensei enabled.

Any recommendations / experiences regarding KVM to share?
Does someone know which NICs perform best with OPNsense: virtIO, e1000, rtl8139?
Anyone managed to get Q35/UEFI running with OPNsense?

Thx