gziprun3 KVM QEMU testing on CentOS Linux 7 via the Phoronix Test Suite. gzip run 3: Processor: 4 x Intel Core (Haswell) @ 2.79GHz (4 Cores), Motherboard: Red Hat KVM, Chipset: Intel 440FX- 82441FX PMC, Memory: 16384MB, Disk: 36GB, Graphics: LLVMpipe, Audio: QEMU ID 22, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-327.36.3.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.14.4, Display Server: X Server 1.17.2, Display Driver: modesetting 1.17.2, OpenGL: 2.1 Mesa 10.6.5 Gallium 0.4, Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM gzip run 2: Processor: 4 x Intel Core (Haswell) @ 2.79GHz (4 Cores), Motherboard: Red Hat KVM, Chipset: Intel 440FX- 82441FX PMC, Memory: 16384MB, Disk: 36GB, Graphics: LLVMpipe, Audio: QEMU ID 22, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-327.36.3.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.14.4, Display Server: X Server 1.17.2, Display Driver: modesetting 1.17.2, OpenGL: 2.1 Mesa 10.6.5 Gallium 0.4, Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM QEMU Virtual: Processor: QEMU Virtual @ 3.41GHz (1 Core), Motherboard: Red Hat KVM, Chipset: Red Hat Virtio, Memory: 1 x 1024 MB RAM, Disk: 20GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-327.36.3.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM QEMU pavel: Processor: QEMU Virtual @ 3.41GHz (1 Core), Motherboard: Red Hat KVM, Chipset: Red Hat Virtio, Memory: 1 x 1024 MB RAM, Disk: 20GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-327.36.3.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM QEMU Gzip Compression 2GB File Compression Seconds < Lower Is Better gzip run 3 ... 11.98 |=============================== gzip run 2 ... 11.84 |============================== QEMU Virtual . 22.16 |========================================================= pavel ........ 19.13 |=================================================