bm Oracle VirtualBox testing on CentOS Linux 7 via the Phoronix Test Suite. VBOX HDD: Processor: AMD FX-8320 Eight-Core @ 3.50GHz (1 Core), Motherboard: Oracle VirtualBox v1.2, Memory: 1024MB, Disk: 17GB VBOX HDD OS: CentOS Linux 7, Kernel: 3.10.0-123.20.1.el7.x86_64 (x86_64), Compiler: GCC 4.8.3 20140911, File-System: xfs, System Layer: Oracle VirtualBox AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better VBOX HDD . 88.98 |=============================================================