truenas20200502 KVM testing on Ubuntu 20.04 via the Phoronix Test Suite. NFSv4.2 noatime: Processor: Common KVM (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1024MB, Disk: 34GB QEMU HDD + 3427GB iSCSI Disk, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: 2 x Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-72-generic (x86_64), Compiler: GCC 9.3.0, File-System: nfs, Screen Resolution: 1024x768, System Layer: KVM iSCSI Defaults: Processor: Common KVM (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1024MB, Disk: 34GB QEMU HDD + 3427GB iSCSI Disk, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: 2 x Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-72-generic (x86_64), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM iSCSI Std Sync: Processor: Common KVM (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1024MB, Disk: 34GB QEMU HDD + 3427GB iSCSI Disk, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: 2 x Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-72-generic (x86_64), Compiler: GCC 9.3.0, 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 NFSv4.2 noatime . 3007.44 |====================================== iSCSI Defaults .. 3773.85 |=============================================== iSCSI Std Sync .. 4133.31 |==================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better NFSv4.2 noatime . 1807.13 |==================================================== iSCSI Defaults .. 285.48 |======== iSCSI Std Sync .. 237.87 |======= IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better NFSv4.2 noatime . 214.79 |===================================================== iSCSI Defaults .. 158.07 |======================================= iSCSI Std Sync .. 159.27 |======================================= IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better NFSv4.2 noatime . 17.63 |====================================================== iSCSI Defaults .. 4.67 |============== iSCSI Std Sync .. 5.29 |================ IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better NFSv4.2 noatime . 6097.87 |==================================================== iSCSI Defaults .. 3048.09 |========================== iSCSI Std Sync .. 3801.18 |================================ IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better NFSv4.2 noatime . 126.31 |===================================================== iSCSI Defaults .. 49.39 |===================== iSCSI Std Sync .. 54.56 |=======================