gzip1 KVM testing on CentOS Linux 7 via the Phoronix Test Suite. KVM: Processor: 2 x AMD Opteron 23xx (Gen 3 Class Opteron) @ 2.91GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Memory: 1 x 2048 MB RAM QEMU, Disk: 18GB, Audio: Generic 1af4 ID 22 OS: CentOS Linux 7, Kernel: 3.10.0-123.el7.x86_64 (x86_64), Compiler: GCC 4.8.2 20140120, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM Gzip Compression 2GB File Compression Seconds < Lower Is Better KVM . 88.72 |==================================================================