wtf wtf wtf: Processor: 2 x Intel Xeon E5-2620 v4 @ 3.00GHz (16 Cores / 32 Threads), Motherboard: Intel S2600CWR (SE5C610.86B.01.01.0024.021320181901 BIOS), Memory: 4 x 32 GB DDR4-2134MT/s Samsung M393A4K40CB2-CTD, Disk: 7 x 12000GB Seagate ST12000NM0027 + 239GB Logical Volume, Graphics: mgadrmfb OS: CentOS Linux 7, Kernel: 3.10.0-957.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768 Flexible IO Tester 3.1 Type: Random Read - IO Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better wtf . 29.40 |==================================================================