iozone-1 KVM testing on Ubuntu 16.04 via the Phoronix Test Suite. test: Processor: 2 x Intel Xeon E312xx (Sandy Bridge) @ 2.60GHz (2 Cores), Motherboard: Fedora OpenStack Nova (1.9.1-5.el7_3.3 BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 8192 MB RAM, Disk: 10GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 16.04, Kernel: 4.4.0-116-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better test . 4723.85 |=============================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better test . 2829.87 |=============================================================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better test . 242.45 |================================================================ IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better test . 230.21 |================================================================ IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better test . 4475.32 |=============================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better test . 245.28 |================================================================