iozone-results Xen HVM domU 4.1.3-rc1-pre-xc testing on Ubuntu 12.04 via the Phoronix Test Suite. 1st-run: Processor: Intel Core i7-3612QE @ 2.10GHz (4 Cores), Motherboard: Xen HVM domU, Chipset: Intel 3rd Gen Core DRAM, Memory: 6144MB, Disk: 75GB, Graphics: LLVMpipe, Audio: Intel 82801AA AC 97 Audio, Monitor: Bochs Screen OS: Ubuntu 12.04, Kernel: 3.2.0-79-generic (x86_64), Desktop: Unity 2D 5.20.0, Display Server: X Server 1.11.3, Display Driver: fbdev 0.4.2, OpenGL: 2.1 Mesa 8.0.4 Gallium 0.4, Compiler: GCC 4.6.3, File-System: ext4, Screen Resolution: 1440x900, System Layer: Xen HVM domU 4.1.3-rc1-pre-xc IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better 1st-run . 224.30 |============================================================= IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better 1st-run . 220.99 |============================================================= IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better 1st-run . 488.09 |============================================================= IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better 1st-run . 485.73 |============================================================= IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better 1st-run . 220.16 |============================================================= IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better 1st-run . 479.07 |=============================================================