aio1 KVM testing on Debian 9.13 via the Phoronix Test Suite. QEMU HDD: Processor: 4 x Intel Core (Haswell no TSX) @ 2.39GHz (4 Cores), Motherboard: OpenStack Foundation Nova v19.0.4 (2:1.10.2-58953eb7 BIOS), Memory: 1 x 4000 MB RAM QEMU, Disk: 86GB QEMU HDD, Graphics: cirrusdrmfb OS: Debian 9.13, Kernel: 4.9.0-14-amd64 (x86_64), Compiler: GCC 6.3.0 20170516, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better QEMU HDD . 1596.17 |===========================================================