dellr720-sas3 KVM testing on Ubuntu 20.04 via the Phoronix Test Suite. SSD Raid10 NFS defaults: Processor: Intel Xeon E5-2650 v2 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 34GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-91-generic (x86_64), Vulkan: 1.0.2, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM SSD Raid10 NFS sync disabled atime off: Processor: Intel Xeon E5-2650 v2 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 34GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-91-generic (x86_64), Vulkan: 1.0.2, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM SSD Raid10 NFS defaults with zil: Processor: Intel Xeon E5-2650 v2 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 34GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-91-generic (x86_64), Vulkan: 1.0.2, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM NFS defaults with zil - 2 cpu sockets numa: Processor: 2 x Intel Xeon E5-2650 v2 (32 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 34GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-91-generic (x86_64), Vulkan: 1.0.2, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM NFS defaults with zil - Truenas 48G R/32CPU: Processor: Intel Xeon E5-2650 v2 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 16GB, Disk: 34GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: Ubuntu 20.04, Kernel: 5.4.0-91-generic (x86_64), Vulkan: 1.0.2, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 3404.07 |============================================ IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 2741.23 |============================================ IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 55.44 |============================================== IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 60.79 |============================================== IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 66.71 |============================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults . 1713.89 |============================================ IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 2734.51 |====================== SSD Raid10 NFS sync disabled atime off ...... 3041.38 |======================== SSD Raid10 NFS defaults with zil ............ 2939.27 |======================= NFS defaults with zil - 2 cpu sockets numa .. 2907.03 |======================= NFS defaults with zil - Truenas 48G R/32CPU . 2659.33 |===================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 2707.55 |=================== SSD Raid10 NFS sync disabled atime off ...... 3036.85 |===================== SSD Raid10 NFS defaults with zil ............ 3401.09 |======================== NFS defaults with zil - 2 cpu sockets numa .. 3025.41 |===================== NFS defaults with zil - Truenas 48G R/32CPU . 2610.66 |================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 1223.08 |======================= SSD Raid10 NFS sync disabled atime off ...... 1279.60 |======================== SSD Raid10 NFS defaults with zil ............ 1260.37 |======================== NFS defaults with zil - 2 cpu sockets numa .. 1199.46 |====================== NFS defaults with zil - Truenas 48G R/32CPU . 1149.23 |====================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 68.27 |=================== SSD Raid10 NFS sync disabled atime off ...... 92.47 |========================== SSD Raid10 NFS defaults with zil ............ 81.08 |======================= NFS defaults with zil - 2 cpu sockets numa .. 83.78 |======================== NFS defaults with zil - Truenas 48G R/32CPU . 75.30 |===================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 69.69 |=================== SSD Raid10 NFS sync disabled atime off ...... 93.41 |========================== SSD Raid10 NFS defaults with zil ............ 76.77 |===================== NFS defaults with zil - 2 cpu sockets numa .. 65.60 |================== NFS defaults with zil - Truenas 48G R/32CPU . 70.92 |==================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better SSD Raid10 NFS defaults ..................... 45.26 |============= SSD Raid10 NFS sync disabled atime off ...... 89.97 |========================== SSD Raid10 NFS defaults with zil ............ 78.32 |======================= NFS defaults with zil - 2 cpu sockets numa .. 71.16 |===================== NFS defaults with zil - Truenas 48G R/32CPU . 69.83 |====================