r630
Xen HVM domU 4.13 testing on Ubuntu 20.04 via the Phoronix Test Suite.


local storage: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

DellRaid SSD: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

ZFS NVME: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

zfs compress off: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

Single NVME Drive: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

ZFS fresh no ashift: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

ZFS ashift13: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

ZFS Mirror Stripe: 

	Processor: 8 x Intel Xeon E5-2680 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-100-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

New Dell NVME Drives: 

	Processor: 8 x Intel Xeon E5-2697 v3 (15 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 4096MB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 20.04, Kernel: 5.4.0-113-generic (x86_64), Vulkan: 1.1.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13


Flexible IO Tester 3.29
Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 8KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
DellRaid SSD ......... 220.0 |==========================================
ZFS NVME ............. 114.0 |======================
zfs compress off ..... 114.0 |======================
Single NVME Drive .... 257.0 |=================================================
ZFS fresh no ashift .. 110.0 |=====================
ZFS ashift13 ......... 115.0 |======================
ZFS Mirror Stripe .... 99.3  |===================
New Dell NVME Drives . 179.0 |==================================


Flexible IO Tester 3.29
Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 8KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
DellRaid SSD ......... 28129 |==========================================
ZFS NVME ............. 14527 |======================
zfs compress off ..... 14620 |======================
Single NVME Drive .... 32900 |=================================================
ZFS fresh no ashift .. 14100 |=====================
ZFS ashift13 ......... 14780 |======================
ZFS Mirror Stripe .... 12708 |===================
New Dell NVME Drives . 22933 |==================================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 8KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
DellRaid SSD ......... 179.0 |============================================
ZFS NVME ............. 56.8  |==============
zfs compress off ..... 69.1  |=================
Single NVME Drive .... 199.0 |=================================================
ZFS fresh no ashift .. 68.3  |=================
ZFS ashift13 ......... 69.8  |=================
ZFS Mirror Stripe .... 59.3  |===============
New Dell NVME Drives . 117.0 |=============================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 8KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
DellRaid SSD ......... 22925 |============================================
ZFS NVME ............. 7264  |==============
zfs compress off ..... 8842  |=================
Single NVME Drive .... 25433 |=================================================
ZFS fresh no ashift .. 8736  |=================
ZFS ashift13 ......... 8927  |=================
ZFS Mirror Stripe .... 7588  |===============
New Dell NVME Drives . 15067 |=============================