Iozone benchmarks Test performance Noop run 1: Processor: Intel Core i7-2635QM @ 2.00GHz (4 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 4096MB, Disk: 26GB VMware Virtual S, Graphics: VMware SVGA II, Audio: Ensoniq ES1371, Network: Intel 82545EM Gigabit OS: Ubuntu 12.04, Kernel: 3.2.0-40-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, System Layer: VMware Noop run 2: Processor: Intel Core i7-2635QM @ 2.00GHz (4 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 4096MB, Disk: 26GB VMware Virtual S, Graphics: VMware SVGA II, Audio: Ensoniq ES1371, Network: Intel 82545EM Gigabit OS: Ubuntu 12.04, Kernel: 3.2.0-40-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, System Layer: VMware IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Noop run 1 . 55.45 |==================================================== Noop run 2 . 63.35 |=========================================================== IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Noop run 1 . 5772.57 |====================================================== Noop run 2 . 6041.83 |=========================================================