ub9aio Running pts/aio-stress-1.1.1 via the Phoronix Test Suite. Virtual disk: Processor: Intel Xeon X7560 @ 2.26GHz (1 Core), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 1 x 512 MB DRAM, Disk: 11GB Virtual disk, Graphics: VMware SVGA II, Network: Intel 82545EM Gigabit OS: Ubuntu 14.04, Kernel: 3.13.0-32-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1176x885, System Layer: VMware aio-stress-cop: Processor: Intel Xeon E5-2420 0 @ 1.90GHz (1 Core), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 1 x 2048 MB DRAM, Disk: 54GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: RedHatEnterpriseServer 6.6, Kernel: 2.6.32-504.23.4.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, System Layer: VMware AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better Virtual disk ... 13.40 |================ aio-stress-cop . 46.47 |=======================================================