test1 test fio: Processor: Intel Core i7-7700 @ 4.20GHz (4 Cores / 8 Threads), Motherboard: Gigabyte Z270XP-SLI-CF (F8 BIOS), Chipset: Intel Intel Kaby Lake + Z270, Memory: 32768MB, Disk: 1000GB Samsung SSD 850 + 2 x 4001GB HGST HDN724040AL + 3001GB Western Digital WD30EFRX-68E + 256GB OCZ AGILITY4 + Samsung SSD 960 EVO 500GB, Graphics: Gigabyte AMD Radeon 4096MB, Audio: Realtek ALC1220, Monitor: DELL U2515H, Network: Intel Connection OS: Fedora 28, Kernel: 4.16.14-300.fc28.x86_64 (x86_64), Desktop: GNOME Shell 3.28.2, Display Driver: modesetting 1.19.3, OpenGL: 4.5 Mesa 18.0.2 (LLVM 6.0.0), Compiler: Clang 6.0.0 + LLVM 6.0.0, File-System: xfs, Screen Resolution: 2560x1440 Flexible IO Tester 3.1 Type: Random Read - IO Engine: POSIX AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better fio . 0.65 |===================================================================