fio-2M KVM QEMU testing on Ubuntu 20.04 via the Phoronix Test Suite. fio-2M: Processor: 2 x QEMU Virtual 2.5+ (2 Cores), Motherboard: Red Hat KVM (1.11.0-2.el7 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 4096 MB RAM, Disk: 2016GB, Graphics: Cirrus Logic GD 5446, Audio: Intel 82801AA AC 97 Audio, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-29-generic (x86_64), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM QEMU Flexible IO Tester 3.18 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-2M . 386.7 |=============================================================== Flexible IO Tester 3.18 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-2M . 190 |================================================================= Flexible IO Tester 3.18 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-2M . 92.9 |================================================================ Flexible IO Tester 3.18 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-2M . 43 |================================================================== Flexible IO Tester 3.18 Type: Sequential Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-2M . 993 |================================================================= Flexible IO Tester 3.18 Type: Sequential Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-2M . 493 |================================================================= Flexible IO Tester 3.18 Type: Sequential Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-2M . 82.1 |================================================================ Flexible IO Tester 3.18 Type: Sequential Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-2M . 38 |==================================================================