ram2 KVM VirtualBox testing on CentOS Linux 7 via the Phoronix Test Suite. Intel Xeon X5670 - InnoTek VirtualBox - Oracle: Processor: Intel Xeon X5670 @ 2.93GHz (1 Core), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 32768MB, Disk: 268GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Network: Intel 82540EM Gigabit OS: CentOS Linux 7, Kernel: 3.10.0-693.11.6.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.22.3, Display Driver: modesetting 1.19.3, Compiler: GCC 4.8.5 20150623, File-System: xfs, System Layer: KVM VirtualBox RAMspeed SMP 3.5.0 Type: Add - Benchmark: Integer MB/s > Higher Is Better Intel Xeon X5670 - InnoTek VirtualBox - Oracle . 8748.40 |===================== RAMspeed SMP 3.5.0 Type: Copy - Benchmark: Integer MB/s > Higher Is Better Intel Xeon X5670 - InnoTek VirtualBox - Oracle . 7269 |======================== RAMspeed SMP 3.5.0 Type: Scale - Benchmark: Integer MB/s > Higher Is Better Intel Xeon X5670 - InnoTek VirtualBox - Oracle . 7620.30 |===================== RAMspeed SMP 3.5.0 Type: Triad - Benchmark: Integer MB/s > Higher Is Better Intel Xeon X5670 - InnoTek VirtualBox - Oracle . 8144.53 |===================== RAMspeed SMP 3.5.0 Type: Average - Benchmark: Integer MB/s > Higher Is Better Intel Xeon X5670 - InnoTek VirtualBox - Oracle . 7868.81 |=====================