zfstuning
Xen HVM domU 4.13 testing on Ubuntu 22.04 via the Phoronix Test Suite.


atime on 128K blocks: 

	Processor: AMD Ryzen 9 5900X 12-Core (8 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 6GB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 22.04, Kernel: 5.15.0-67-generic (x86_64), Vulkan: 1.3.224, Compiler: GCC 11.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

atime off 128k blocks: 

	Processor: AMD Ryzen 9 5900X 12-Core (8 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 6GB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 22.04, Kernel: 5.15.0-67-generic (x86_64), Vulkan: 1.3.224, Compiler: GCC 11.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13

atime off 64k blocks: 

	Processor: AMD Ryzen 9 5900X 12-Core (8 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX 82441FX PMC, Memory: 6GB, Disk: 29GB, Graphics: bochs-drmdrmfb

	OS: Ubuntu 22.04, Kernel: 5.15.0-67-generic (x86_64), Vulkan: 1.3.224, Compiler: GCC 11.3.0, 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: 1MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
atime on 128K blocks .. 1118 |=================================================
atime off 128k blocks . 1117 |=================================================
atime off 64k blocks .. 1106 |================================================


Flexible IO Tester 3.29
Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 1MB - Disk Target: Default Test Directory
IOPS > Higher Is Better
atime on 128K blocks .. 1114 |=================================================
atime off 128k blocks . 1114 |=================================================
atime off 64k blocks .. 1103 |=================================================


Flexible IO Tester 3.29
Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
atime on 128K blocks .. 312 |=================================================
atime off 128k blocks . 314 |=================================================
atime off 64k blocks .. 320 |==================================================


Flexible IO Tester 3.29
Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
atime on 128K blocks .. 79767 |===============================================
atime off 128k blocks . 80500 |===============================================
atime off 64k blocks .. 81967 |================================================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 1MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
atime on 128K blocks .. 935 |==================================================
atime off 128k blocks . 944 |==================================================
atime off 64k blocks .. 934 |=================================================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 1MB - Disk Target: Default Test Directory
IOPS > Higher Is Better
atime on 128K blocks .. 932 |==================================================
atime off 128k blocks . 940 |==================================================
atime off 64k blocks .. 930 |=================================================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
atime on 128K blocks .. 195 |===============================================
atime off 128k blocks . 196 |================================================
atime off 64k blocks .. 206 |==================================================


Flexible IO Tester 3.29
Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
atime on 128K blocks .. 49967 |=============================================
atime off 128k blocks . 50080 |==============================================
atime off 64k blocks .. 52750 |================================================