fio_all.512.1 KVM VirtualBox testing on RedHatEnterpriseServer 7.4 via the Phoronix Test Suite. fio_all.512.1: Processor: Intel Core i7-4870HQ @ 2.49GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 2048MB, Disk: 21GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Network: Intel 82540EM Gigabit OS: RedHatEnterpriseServer 7.4, Kernel: 3.10.0-693.2.2.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.22.3, Display Server: X Server 1.19.3, Display Driver: modesetting 1.19.3, Compiler: GCC 4.8.5 20150623, File-System: xfs, System Layer: KVM VirtualBox IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fio_all.512.1 . 7642.19 |====================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fio_all.512.1 . 5803.62 |====================================================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fio_all.512.1 . 832.01 |======================================================= IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fio_all.512.1 . 742.97 |======================================================= IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fio_all.512.1 . 7632.79 |====================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fio_all.512.1 . 802.64 |=======================================================