guigumem KVM testing on CentOS Linux 7 via the Phoronix Test Suite. 16384 MB RAM - Intel Xeon E5-26xx v3: Processor: Intel Xeon E5-26xx v3 @ 2.29GHz (8 Cores), Motherboard: Bochs, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 16384 MB RAM, Disk: 50GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-327.36.3.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: ext3, Screen Resolution: 1024x768, System Layer: KVM RAMspeed SMP 3.5.0 Integer Add MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 21000.76 |============================== RAMspeed SMP 3.5.0 Integer Copy MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 20903.48 |============================== RAMspeed SMP 3.5.0 Integer Scale MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 20853.87 |============================== RAMspeed SMP 3.5.0 Floating-Point Add MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 17216.18 |============================== Stream 2013-01-17 Add MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 46954.34 |============================== Stream 2013-01-17 Copy MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 57354.60 |============================== Stream 2013-01-17 Scale MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 41321.02 |============================== CacheBench Read Cache MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 2146.15 |=============================== CacheBench Write Cache MB/s > Higher Is Better 16384 MB RAM - Intel Xeon E5-26xx v3 . 17283.17 |==============================