IO EXT4 Patch
AMD Ryzen Threadripper 3960X 24-Core testing with a MSI Creator TRX40 (MS-7C59) v1.0 (1.12N1 BIOS) and Sapphire AMD Radeon RX 5500/5500M / Pro 5500M 4GB on Ubuntu 20.04 via the Phoronix Test Suite.


v5.8: 

	Processor: AMD Ryzen Threadripper 3960X 24-Core @ 3.80GHz (24 Cores / 48 Threads), Motherboard: MSI Creator TRX40 (MS-7C59) v1.0 (1.12N1 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: Sapphire AMD Radeon RX 5500/5500M / Pro 5500M 4GB (1895/875MHz), Audio: AMD Navi 10 HDMI Audio, Monitor: ASUS MG28U, Network: Aquantia AQC107 NBase-T/IEEE + Intel I211 + Intel Wi-Fi 6 AX200

	OS: Ubuntu 20.04, Kernel: 5.8.0-050800-generic (x86_64), Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 4.6 Mesa 20.0.8 (LLVM 10.0.0), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160

v5.9 Git: 

	Processor: AMD Ryzen Threadripper 3960X 24-Core @ 3.80GHz (24 Cores / 48 Threads), Motherboard: MSI Creator TRX40 (MS-7C59) v1.0 (1.12N1 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: Sapphire AMD Radeon RX 5500/5500M / Pro 5500M 4GB (1900/875MHz), Audio: AMD Navi 10 HDMI Audio, Monitor: ASUS MG28U, Network: Aquantia AQC107 NBase-T/IEEE + Intel I211 + Intel Wi-Fi 6 AX200

	OS: Ubuntu 20.04, Kernel: 5.9.0-050900rc4daily20200911-generic (x86_64) 20200910, Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 4.6 Mesa 20.0.8 (LLVM 10.0.0), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160

v5.9 Git + patch: 

	Processor: AMD Ryzen Threadripper 3960X 24-Core @ 3.80GHz (24 Cores / 48 Threads), Motherboard: MSI Creator TRX40 (MS-7C59) v1.0 (1.12N1 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: Sapphire AMD Radeon RX 5500/5500M / Pro 5500M 4GB (1900/875MHz), Audio: AMD Navi 10 HDMI Audio, Monitor: ASUS MG28U, Network: Aquantia AQC107 NBase-T/IEEE + Intel I211 + Intel Wi-Fi 6 AX200

	OS: Ubuntu 20.04, Kernel: 5.9.0-rc4-ext4-patch (x86_64) 20200911, Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 4.6 Mesa 20.0.8 (LLVM 10.0.0), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160


MariaDB 10.5.2
Clients: 1
Queries Per Second > Higher Is Better
v5.8 ............. 1548 |============================
v5.9 Git ......... 1806 |=================================
v5.9 Git + patch . 2947 |======================================================


MariaDB 10.5.2
Clients: 16
Queries Per Second > Higher Is Better
v5.8 ............. 480  |===============
v5.9 Git ......... 535  |=================
v5.9 Git + patch . 1740 |======================================================


MariaDB 10.5.2
Clients: 32
Queries Per Second > Higher Is Better
v5.8 ............. 445  |==============
v5.9 Git ......... 487  |===============
v5.9 Git + patch . 1744 |======================================================


MariaDB 10.5.2
Clients: 64
Queries Per Second > Higher Is Better
v5.8 ............. 369  |===============
v5.9 Git ......... 395  |================
v5.9 Git + patch . 1316 |======================================================


MariaDB 10.5.2
Clients: 128
Queries Per Second > Higher Is Better
v5.8 ............. 300 |==========================================
v5.9 Git ......... 303 |===========================================
v5.9 Git + patch . 389 |=======================================================


MariaDB 10.5.2
Clients: 256
Queries Per Second > Higher Is Better
v5.8 ............. 292 |======================================================
v5.9 Git ......... 291 |======================================================
v5.9 Git + patch . 295 |=======================================================


PostgreSQL pgbench 12.0
Scaling: Buffer Test - Test: Normal Load - Mode: Read Only
TPS > Higher Is Better
v5.8 ............. 642894.42 |=================================================
v5.9 Git ......... 631611.32 |================================================
v5.9 Git + patch . 634814.93 |================================================


PostgreSQL pgbench 12.0
Scaling: Buffer Test - Test: Normal Load - Mode: Read Write
TPS > Higher Is Better
v5.8 ............. 12089.61 |================================================
v5.9 Git ......... 11774.25 |===============================================
v5.9 Git + patch . 12586.89 |==================================================


PostgreSQL pgbench 12.0
Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Only
TPS > Higher Is Better
v5.8 ............. 647703.64 |=================================================
v5.9 Git ......... 638088.73 |================================================
v5.9 Git + patch . 634934.33 |================================================


PostgreSQL pgbench 12.0
Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write
TPS > Higher Is Better
v5.8 ............. 12155.53 |===============================================
v5.9 Git ......... 12103.54 |===============================================
v5.9 Git + patch . 12881.67 |==================================================