one QEMU testing on Debian 9.0 via the Phoronix Test Suite. QEMU Virtual 2.5: Processor: QEMU Virtual 2.5+ @ 2.10GHz (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM QEMU, Disk: 1572GB QEMU HDD, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Debian 9.0, Kernel: 4.9.0-2-amd64 (x86_64), Compiler: GCC 6.3.0 20170406, File-System: ext4, Screen Resolution: 1024x768, System Layer: QEMU 7-Zip Compression 9.20.1 Compress Speed Test MIPS > Higher Is Better QEMU Virtual 2.5 . 2618 |====================================================== Parallel BZIP2 Compression 1.1.12 256MB File Compression Seconds < Lower Is Better QEMU Virtual 2.5 . 71.52 |===================================================== Gzip Compression 2GB File Compression Seconds < Lower Is Better QEMU Virtual 2.5 . 18.54 |===================================================== LZMA Compression 256MB File Compression Seconds < Lower Is Better QEMU Virtual 2.5 . 510.61 |====================================================