vb_grj KVM testing on Ubuntu 22.04 via the Phoronix Test Suite. ssd480: Processor: 2 x Common KVM (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 69GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 22.04, Kernel: 5.15.0-47-generic (x86_64), Vulkan: 1.2.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1280x800, System Layer: KVM ubnt basic zfs: Processor: 2 x Common KVM (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 69GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 22.04, Kernel: 5.15.0-47-generic (x86_64), Vulkan: 1.2.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1280x800, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better ssd480 . 1818.74 |============================================================= IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better ssd480 . 1760.66 |============================================================= IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better ubnt basic zfs . 2590.54 |===================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better ubnt basic zfs . 5.84 |========================================================