foo KVM testing on Ubuntu 16.04 via the Phoronix Test Suite. test: Processor: 4 x Intel Core (Haswell no TSX) @ 2.60GHz (4 Cores), Motherboard: OpenStack Foundation Nova v13.1.1, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 8192 MB RAM QEMU, Disk: 86GB QEMU HDD, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 16.04, Kernel: 4.4.0-43-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, System Layer: KVM IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better test . 5798.54 |=============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better test . 658.20 |================================================================