Network KVM QEMU testing on Debian 10 via the Phoronix Test Suite. Realtek RTL-8100: Processor: 2 x QEMU Virtual 2.5+ (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (1.12.0-1 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 2048MB, Disk: 53GB, Graphics: llvmpipe, Network: Realtek RTL-8100/8101L/8139 OS: Debian 10, Kernel: 4.19.0-13-amd64 (x86_64), Desktop: GNOME Shell 3.30.2, Display Server: X Server, OpenGL: 3.3 Mesa 18.3.6 (LLVM 7.0 128 bits), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM QEMU Ethr 2019-01-02 Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 1 Microseconds < Lower Is Better Realtek RTL-8100 . 20.59 |===================================================== Ethr 2019-01-02 Server Address: localhost - Protocol: HTTP - Test: Bandwidth - Threads: 1 Mbits/sec > Higher Is Better Realtek RTL-8100 . 1133.33 |=================================================== Ethr 2019-01-02 Server Address: localhost - Protocol: TCP - Test: Connections/s - Threads: 1 Connections/sec > Higher Is Better Realtek RTL-8100 . 108245 |====================================================