CentOS 6.2 Performance ppp PERC 5: Processor: 2 x Intel Xeon 5160 @ 3.00GHz (4 Cores), Motherboard: Dell 0NK937, Chipset: Intel 5000X MCH, Memory: 4 x 2048 MB DDR2-667MHz, Disk: 1000GB PERC 5/i, Graphics: ATI ES1000 128MB, Monitor: T22B350, Network: Broadcom NetXtreme II BCM5708 Gigabit OS: CentOS 6.2, Kernel: 2.6.32-220.el6.i686 (i686), Desktop: GNOME, Display Driver: radeon 6.14.2, OpenGL: 2.1 Mesa 7.11, Compiler: GCC 4.4.7 20120313, File-System: ext4, Screen Resolution: 1440x900 000: Processor: Intel Core i7-3770 @ 3.40GHz (8 Cores), Motherboard: ASRock Z77 Extreme4, Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 32768MB, Disk: 256GB OCZ VERTEX4 + 1000GB Western Digital WD10EZEX-00R + 1000GB Seagate ST1000DM003-9YN1, Graphics: MSI NVIDIA GeForce GTX 670 2048MB (967/3004MHz), Audio: Realtek ALC898, Network: Broadcom NetLink BCM57781 Gigabit PCIe OS: Ubuntu 14.04, Kernel: 3.13.0-34-generic (x86_64), Desktop: Unity 7.2.2, Display Server: X Server 1.15.1, Display Driver: NVIDIA 331.89, OpenGL: 4.3.0, Compiler: GCC 4.8.2 + CUDA 5.5, File-System: ext4, Screen Resolution: 3600x1080 IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better PERC 5 . 171.40 |= 000 .... 10476.80 |============================================================ IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better PERC 5 . 91.39 |=============== 000 .... 370.42 |============================================================== Compile Bench 0.6 Test: Read Compiled Tree MB/s > Higher Is Better PERC 5 . 289.45 |========= 000 .... 1959.66 |=============================================================