Memory Xen HVM domU 4.2.amazon testing on CentOS 6.9 via the Phoronix Test Suite. Memory Test: Processor: Intel Xeon E5-2686 v4 @ 2.30GHz (2 Cores / 4 Threads), Motherboard: Xen HVM domU (4.2.amazon BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 16384MB, Disk: 8GB, Graphics: Cirrus Logic GD 5446, Network: Intel 82599 Virtual Function OS: CentOS 6.9, Kernel: 2.6.32-696.30.1.el6.x86_64 (x86_64), Compiler: GCC 5.5.0, File-System: ext4, System Layer: Xen HVM domU 4.2.amazon RAMspeed SMP 3.5.0 Integer Add MB/s > Higher Is Better Memory Test . 19385 |========================================================== RAMspeed SMP 3.5.0 Integer Copy MB/s > Higher Is Better Memory Test . 17633 |========================================================== RAMspeed SMP 3.5.0 Integer Scale MB/s > Higher Is Better Memory Test . 17735.38 |======================================================= RAMspeed SMP 3.5.0 Floating-Point Add MB/s > Higher Is Better Memory Test . 19149.10 |======================================================= Stream 2013-01-17 Add MB/s > Higher Is Better Memory Test . 19719.46 |======================================================= Stream 2013-01-17 Copy MB/s > Higher Is Better Memory Test . 30379.38 |======================================================= Stream 2013-01-17 Scale MB/s > Higher Is Better Memory Test . 18282.34 |======================================================= CacheBench Read Cache MB/s > Higher Is Better Memory Test . 2276.05 |======================================================== CacheBench Write Cache MB/s > Higher Is Better Memory Test . 19113.60 |=======================================================