ymx1 Xen 4.2.amazon Hypervisor testing on CentOS 6.4 via the Phoronix Test Suite. disk: Processor: Intel Xeon E5-2680 v2 @ 2.80GHz (2 Cores), Memory: 4096MB, Disk: 8GB OS: CentOS 6.4, Kernel: 2.6.32-358.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, System Layer: Xen 4.2.amazon Hypervisor IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better disk . 7187.24 |=============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better disk . 2021.23 |=============================================================== IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better disk . 56.96 |================================================================= IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better disk . 56.68 |================================================================= IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better disk . 6762.42 |=============================================================== IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better disk . 56.27 |=================================================================