fio-4K-8M KVM QEMU testing on Debian 10 via the Phoronix Test Suite. fio-4K-8M: Processor: QEMU Virtual 2.5+ (1 Core), Motherboard: Red Hat KVM (1.11.0-2.el7 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 512 MB RAM, Disk: 504GB, Graphics: Cirrus Logic GD 5446, Audio: Intel 82801AA AC 97 Audio, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-5-amd64 (x86_64), Compiler: GCC 8.3.0, 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: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-4K-8M . 230 |============================================================== Flexible IO Tester 3.18 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-4K-8M . 58467 |============================================================ Flexible IO Tester 3.18 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-4K-8M . 166 |============================================================== Flexible IO Tester 3.18 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-4K-8M . 42393 |============================================================ Flexible IO Tester 3.18 Type: Sequential Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-4K-8M . 233 |============================================================== Flexible IO Tester 3.18 Type: Sequential Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-4K-8M . 59660 |============================================================ Flexible IO Tester 3.18 Type: Sequential Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better fio-4K-8M . 219 |============================================================== Flexible IO Tester 3.18 Type: Sequential Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better fio-4K-8M . 56007 |============================================================