px11-zvol KVM testing on Debian 10 via the Phoronix Test Suite. sync-disabled: Processor: Common KVM (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 4096 MB RAM QEMU, Disk: 31GB, Graphics: bochsdrmfb, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-14-amd64 (x86_64), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM kvm-mods: Processor: Common KVM (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 4096 MB RAM QEMU, Disk: 31GB, Graphics: bochsdrmfb, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-14-amd64 (x86_64), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better sync-disabled . 2937.67 |================================================== kvm-mods ...... 3153.16 |====================================================== IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better sync-disabled . 2884.81 |==================================================== kvm-mods ...... 2997.29 |====================================================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better sync-disabled . 169.55 |======================================================= kvm-mods ...... 157.60 |=================================================== IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better sync-disabled . 194.05 |======================================================= kvm-mods ...... 186.61 |=====================================================