iotest KVM testing on Ubuntu 16.04 via the Phoronix Test Suite. iotest: Processor: Unknown (2 Cores), Motherboard: QEMU KVM Virtual Machine v1.0, Chipset: Red Hat Device 0008, Memory: 1 x 1024 MB RAM QEMU, Disk: 28GB, Network: Intel 82540EM Gigabit OS: Ubuntu 16.04, Kernel: 4.10.0-35-generic (aarch64), Compiler: GCC 5.4.0 20160609, File-System: ext4, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better iotest . 99.91 |=============================================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better iotest . 152.76 |============================================================== IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better iotest . 107.17 |============================================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better iotest . 107.68 |============================================================== IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better iotest . 148.08 |============================================================== IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better iotest . 105.18 |==============================================================