io KVM testing on Ubuntu 18.04 via the Phoronix Test Suite. Ubuntu 18.04 LTS: Processor: Intel Xeon Platinum 8124M (4 Cores / 8 Threads), Motherboard: Amazon EC2 c5.2xlarge (1.0 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16384MB, Disk: 9GB Amazon Elastic Block Store, Network: Amazon Elastic OS: Ubuntu 18.04, Kernel: 4.15.0-1031-aws (x86_64), Compiler: GCC 7.3.0, File-System: ext4, System Layer: KVM AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better Ubuntu 18.04 LTS . 191 |======================================================= Flexible IO Tester 3.1 Type: Random Write - IO Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 64KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu 18.04 LTS . 2770 |====================================================== Flexible IO Tester 3.1 Type: Random Write - IO Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 64KB - Disk Target: Default Test Directory IOPS > Higher Is Better Ubuntu 18.04 LTS . 44300 |=====================================================