memtest05 KVM testing on CentOS Linux 7 via the Phoronix Test Suite. 1024 MB RAM QEMU: Processor: Intel Core 2 Duo T7700 @ 2.66GHz (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 1024 MB RAM QEMU, Disk: 18GB, Graphics: LLVMpipe, Audio: Intel 82801FB/FBM/FR/FW/FRW, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-229.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.8.4, Display Server: X Server 1.15.0, Display Driver: modesetting 0.8.0, OpenGL: 2.1 Mesa 10.2.7 Gallium 0.4, Compiler: GCC 4.8.3 20140911, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM Stream 2013-01-17 Type: Copy MB/s > Higher Is Better 1024 MB RAM QEMU . 4902.86 |=================================================== Stream 2013-01-17 Type: Scale MB/s > Higher Is Better 1024 MB RAM QEMU . 3380.43 |=================================================== Stream 2013-01-17 Type: Triad MB/s > Higher Is Better 1024 MB RAM QEMU . 3890.30 |=================================================== Stream 2013-01-17 Type: Add MB/s > Higher Is Better 1024 MB RAM QEMU . 3902.54 |===================================================