r3tstmem Xen HVM domU 4.2.amazon testing on Amazon Linux AMI 2013.09 via the Phoronix Test Suite. Intel Xeon E5-2670 v2: Processor: Intel Xeon E5-2670 v2 @ 2.49GHz (2 Cores), Motherboard: Xen HVM domU, Memory: 15360MB, Disk: 8GB OS: Amazon Linux AMI 2013.09, Kernel: 3.4.82-69.112.amzn1.x86_64 (x86_64), Compiler: GCC 4.8.2 20140120, File-System: ext4, System Layer: Xen HVM domU 4.2.amazon RAMspeed SMP 3.5.0 Integer Add MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 10015.68 |============================================= RAMspeed SMP 3.5.0 Integer Copy MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 10323.61 |============================================= RAMspeed SMP 3.5.0 Integer Scale MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 10461.23 |============================================= RAMspeed SMP 3.5.0 Floating-Point Add MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 11635.58 |============================================= Stream 2013-01-17 Add MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 11421.41 |============================================= Stream 2013-01-17 Copy MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 8982.18 |============================================== Stream 2013-01-17 Scale MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 11243.84 |============================================= CacheBench Read Cache MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 2444.43 |============================================== CacheBench Write Cache MB/s > Higher Is Better Intel Xeon E5-2670 v2 . 10829.10 |=============================================