KVM 2 x Intel Core i5-2410M testing with a QEMU Standard PC (i440FX + PIIX 1996) and Device 1234:1111 on Ubuntu 14.04 via the Phoronix Test Suite. KVM: Processor: 2 x Intel Core i5-2410M @ 2.29GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 1024 MB RAM QEMU, Disk: 4GB QEMU HDD, Graphics: Device 1234:1111, Network: Intel 82540EM Gigabit OS: Ubuntu 14.04, Kernel: 4.2.0-27-generic (x86_64), File-System: ext4, Screen Resolution: 800x600 IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better KVM . 44.11 |================================================================== IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better KVM . 2977.58 |================================================================