aio qemu testing on Ubuntu 16.04 via the Phoronix Test Suite. certa_aio: Processor: 2 x Intel Xeon E3-12xx v2 (Ivy Bridge IBRS) (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 8192MB, Disk: 20GB, Graphics: llvmpipe 8GB, Network: 2 x Intel 82540EM OS: Ubuntu 16.04, Kernel: 4.15.0-51-generic (x86_64), Desktop: Unity 7.4.5, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.5 (LLVM 6.0 256 bits), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768, System Layer: qemu AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better certa_aio . 986.43 |===========================================================