cfq VMware testing on Ubuntu 14.04 via the Phoronix Test Suite. cfq: Processor: Intel Core 2 Duo E8400 @ 2.99GHz (1 Core), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 1024MB, Disk: 26GB VMware Virtual S, Graphics: VMware SVGA II, Audio: Ensoniq ES1371 / Creative, Network: Intel 82545EM Gigabit OS: Ubuntu 14.04, Kernel: 3.16.0-300-generic (x86_64), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2048x1920, System Layer: VMware IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better cfq . 4527.28 |================================================================ IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better cfq . 3858.90 |================================================================ IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better cfq . 84.77 |================================================================== IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better cfq . 85.62 |================================================================== IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better cfq . 4483.97 |================================================================ IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better cfq . 83.69 |==================================================================