iozone-fast Xen 4.1.5 Hypervisor testing on Debian 7.1 via the Phoronix Test Suite. debian 7 xenserver: Processor: Intel Xeon E3-1230 v3 @ 3.29GHz (1 Core), Memory: 1024MB, Disk: 20GB OS: Debian 7.1, Kernel: 3.2.0-4-amd64 (x86_64), Compiler: GCC 4.7, File-System: ext4, System Layer: Xen 4.1.5 Hypervisor centos 6.4 - rax: Processor: AMD Opteron 4170 HE @ 2.10GHz (1 Core), Memory: 1024MB, Disk: 40GB OS: CentOS 6.4, Kernel: 2.6.32-220.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext3, System Layer: Xen 4.1.1 Hypervisor IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better debian 7 xenserver . 271.40 |================================================== centos 6.4 - rax ... 102.95 |=================== IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better debian 7 xenserver . 249.58 |================================================== centos 6.4 - rax ... 100.59 |==================== IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better debian 7 xenserver . 119.25 |============================================= centos 6.4 - rax ... 131.62 |================================================== IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better debian 7 xenserver . 125.78 |============================================= centos 6.4 - rax ... 139.73 |================================================== IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better debian 7 xenserver . 274.66 |================================================== centos 6.4 - rax ... 106.68 |=================== IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better debian 7 xenserver . 122.12 |============================================= centos 6.4 - rax ... 134.46 |==================================================