ThinkStack thinkstack thinkstack: Processor: Intel Xeon E312xx @ 2.49GHz (2 Cores), Motherboard: OpenStack Foundation Nova v2015.1.1, Memory: 1 x 4096 MB RAM QEMU, Disk: 40GB OS: CentOS 6.5, Kernel: 2.6.32-431.20.3.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4 IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 130.12 |========================================================== IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 129.97 |========================================================== IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 362.03 |========================================================== IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 344.37 |========================================================== IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 128.49 |========================================================== IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 342.16 |========================================================== IOzone 3.405 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 187.78 |========================================================== IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 172.34 |========================================================== IOzone 3.405 Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 290.58 |========================================================== IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 287.46 |========================================================== IOzone 3.405 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better thinkstack . 184.89 |========================================================== IOzone 3.405 Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better thinkstack . 237.29 |==========================================================