c4testm Xen HVM domU 4.2.amazon testing on Amazon Linux AMI 2013.09 via the Phoronix Test Suite. Intel Xeon E5-2666 v3: Processor: Intel Xeon E5-2666 v3 @ 2.89GHz (2 Cores), Motherboard: Xen HVM domU, Memory: 4096MB, 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 E5-2666 v3 . 13624.45 |============================================= RAMspeed SMP 3.5.0 Integer Copy MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 13224.16 |============================================= RAMspeed SMP 3.5.0 Integer Scale MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 13233.26 |============================================= RAMspeed SMP 3.5.0 Floating-Point Add MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 14476.64 |============================================= Stream 2013-01-17 Add MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 14336.02 |============================================= Stream 2013-01-17 Copy MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 18159.61 |============================================= Stream 2013-01-17 Scale MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 13240.82 |============================================= CacheBench Read Cache MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 2705.73 |============================================== CacheBench Write Cache MB/s > Higher Is Better Intel Xeon E5-2666 v3 . 14413.77 |=============================================