nuc.i5.2gb Oracle VirtualBox testing on Ubuntu 16.04 VBOX HDD: Processor: Intel Core i5-5250U @ 1.60GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 2048MB, Disk: 21GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Network: Intel 82540EM Gigabit OS: Ubuntu 16.04, Kernel: 4.4.0-97-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 800x600, System Layer: Oracle VirtualBox Flexible IO Tester 2.1.13 Type: Random Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / MB/s > Higher Is Better VBOX HDD . 38.36 |============================================================= Flexible IO Tester 2.1.13 Type: Random Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / IOPS > Higher Is Better VBOX HDD . 2394 |============================================================== Flexible IO Tester 2.1.13 Type: Random Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / MB/s > Higher Is Better VBOX HDD . 64.78 |============================================================= Flexible IO Tester 2.1.13 Type: Random Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / IOPS > Higher Is Better VBOX HDD . 4045 |============================================================== Flexible IO Tester 2.1.13 Type: Sequential Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / MB/s > Higher Is Better VBOX HDD . 50.58 |============================================================= Flexible IO Tester 2.1.13 Type: Sequential Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / IOPS > Higher Is Better VBOX HDD . 3158 |============================================================== Flexible IO Tester 2.1.13 Type: Sequential Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / MB/s > Higher Is Better VBOX HDD . 93.74 |============================================================= Flexible IO Tester 2.1.13 Type: Sequential Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 16KB - Disk Target: / IOPS > Higher Is Better VBOX HDD . 5855 |==============================================================