aio_test Xen HVM domU 4.2.amazon testing on Ubuntu 18.04 via the Phoronix Test Suite. stresstest: Processor: Intel Xeon E5-2676 v3 @ 2.40GHz (1 Core), Motherboard: Xen HVM domU (4.2.amazon BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 1024MB, Disk: 8GB, Graphics: Cirrus Logic GD 5446 OS: Ubuntu 18.04, Kernel: 5.3.0-1035-aws (x86_64), Compiler: GCC 7.5.0, File-System: ext4, System Layer: Xen HVM domU 4.2.amazon AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better stresstest . 71.43 |===========================================================