disk-io KVM testing on CentOS Linux 8 via the Phoronix Test Suite. disk-io-test: Processor: Intel Xeon (1 Core / 2 Threads), Motherboard: Google Compute Engine n2-standard-2, Memory: 8GB, Disk: 32GB PersistentDisk OS: CentOS Linux 8, Kernel: 4.18.0-193.28.1.el8_2.x86_64 (x86_64), Compiler: GCC 8.3.1 20191121, File-System: xfs, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better disk-io-test . 3367.26 |======================================================= IOzone 3.465 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better disk-io-test . 3625.62 |======================================================= IOzone 3.465 Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better disk-io-test . 12.09 |========================================================= IOzone 3.465 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better disk-io-test . 12.03 |========================================================= IOzone 3.465 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better disk-io-test . 5781.41 |======================================================= IOzone 3.465 Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better disk-io-test . 12.04 |=========================================================