Proxmox STD Network Benchmark qemu testing on Debian 9.12 via the Phoronix Test Suite. Red Hat Virtio device: Processor: 4 x Intel Xeon E7 4830 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 2 x 16384 MB RAM QEMU, Disk: 490GB, Graphics: bochsdrmfb, Network: Red Hat Virtio device OS: Debian 9.12, Kernel: 4.9.0-12-amd64 (x86_64), Compiler: GCC 6.3.0 20170516, File-System: ext4, Screen Resolution: 1024x768, System Layer: qemu Sockperf 3.4 Test: Throughput Messages Per Second > Higher Is Better Red Hat Virtio device . 98418 |================================================ Sockperf 3.4 Test: Latency Ping Pong usec < Lower Is Better Red Hat Virtio device . 46.01 |================================================ Sockperf 3.4 Test: Latency Under Load usec < Lower Is Better Red Hat Virtio device . 100.11 |===============================================