ZFS VM Disk test KVM testing on Ubuntu 18.04 via the Phoronix Test Suite. iscsi - Default: Processor: Intel Xeon E312xx @ 2.10GHz (1 Core), Motherboard: oVirt Node, Chipset: Intel 440FX- 82441FX PMC, Memory: 4096MB, Disk: 39GB, Graphics: Red Hat QXL paravirtual graphic card, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-74-generic (x86_64), File-System: ext4, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better iscsi - Default . 2905.46 |==================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better iscsi - Default . 1682.68 |==================================================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better iscsi - Default . 121.93 |===================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better iscsi - Default . 113.67 |===================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better iscsi - Default . 3442.45 |==================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better iscsi - Default . 118.28 |=====================================================