iozone-master QEMU testing on CentOS 6.4 (Final) via the Phoronix Test Suite. reads: Processor: QEMU Virtual @ 2.00GHz (4 Cores), Motherboard: Red Hat KVM, Chipset: Red Hat Virtio, Memory: 4 x 16384 MB RAM, Disk: 1008GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.23.2.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext3, System Layer: QEMU IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better reads . 1768.39 |============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 1964.60 |============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2109.48 |============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2539.23 |============================================================== IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2408.96 |============================================================== IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2743.43 |============================================================== IOzone 3.405 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2947.75 |============================================================== IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2947.82 |============================================================== IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2002.35 |============================================================== IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2522.39 |============================================================== IOzone 3.405 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2819.64 |============================================================== IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better reads . 2748.17 |==============================================================