Linux 5.15 Kernel Patch Tests - AMD Ryzen 9 5950X AMD Ryzen 9 5950X testing of patches by Michael Larabel for possible regression fix. Linux 5.13: Processor: AMD Ryzen 9 5950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (3801 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 Plus, Graphics: AMD Radeon RX 6800/6800 XT / 6900 16GB (2575/1000MHz), Audio: AMD Device ab28, Monitor: ASUS MG28U, Network: Realtek RTL8125 2.5GbE + Intel I211 + Intel Wi-Fi 6 AX200 OS: Ubuntu 21.10, Kernel: 5.13.0-051300-generic (x86_64), Desktop: GNOME Shell 40.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 21.1.4 (LLVM 12.0.1), Vulkan: 1.2.168, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 3840x2160 Linux 5.15-rc1: Processor: AMD Ryzen 9 5950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (3801 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 Plus, Graphics: AMD Radeon RX 6800/6800 XT / 6900 16GB (2575/1000MHz), Audio: AMD Device ab28, Monitor: ASUS MG28U, Network: Realtek RTL8125 2.5GbE + Intel I211 + Intel Wi-Fi 6 AX200 OS: Ubuntu 21.10, Kernel: 5.15.0-rc1-phx (x86_64) 20210913, Desktop: GNOME Shell 40.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 21.1.4 (LLVM 12.0.1), Vulkan: 1.2.168, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 3840x2160 flush-in-the-ref: Processor: AMD Ryzen 9 5950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (3801 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 Plus, Graphics: AMD Radeon RX 6800/6800 XT / 6900 16GB (2575/1000MHz), Audio: AMD Device ab28, Monitor: ASUS MG28U, Network: Realtek RTL8125 2.5GbE + Intel I211 + Intel Wi-Fi 6 AX200 OS: Ubuntu 21.10, Kernel: 5.15.0-rc2-flush-in-the-ref (x86_64) 20210921, Desktop: GNOME Shell 40.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 21.1.4 (LLVM 12.0.1), Vulkan: 1.2.168, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 3840x2160 increase-the-flush: Processor: AMD Ryzen 9 5950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (3801 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 Plus, Graphics: AMD Radeon RX 6800/6800 XT / 6900 16GB (2575/1000MHz), Audio: AMD Device ab28, Monitor: ASUS MG28U, Network: Realtek RTL8125 2.5GbE + Intel I211 + Intel Wi-Fi 6 AX200 OS: Ubuntu 21.10, Kernel: 5.15.0-rc2 increase-the-flush (x86_64) 20210921, Desktop: GNOME Shell 40.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 21.1.4 (LLVM 12.0.1), Vulkan: 1.2.168, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 3840x2160 5.15 3reverts: Processor: AMD Ryzen 9 5950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (3801 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 1000GB Sabrent Rocket 4.0 Plus, Graphics: AMD Radeon RX 6800/6800 XT / 6900 16GB (2575/1000MHz), Audio: AMD Device ab28, Monitor: ASUS MG28U, Network: Realtek RTL8125 2.5GbE + Intel I211 + Intel Wi-Fi 6 AX200 OS: Ubuntu 21.10, Kernel: 5.15.0-rc2-3reverts (x86_64) 20210922, Desktop: GNOME Shell 40.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 21.1.4 (LLVM 12.0.1), Vulkan: 1.2.168, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 3840x2160 JPEG XL libjxl 0.5 Input: PNG - Encode Speed: 5 MP/s > Higher Is Better Linux 5.13 ......... 61.00 |=================================================== Linux 5.15-rc1 ..... 59.79 |================================================== flush-in-the-ref ... 61.01 |=================================================== increase-the-flush . 60.63 |=================================================== 5.15 3reverts ...... 60.41 |================================================== JPEG XL libjxl 0.5 Input: PNG - Encode Speed: 7 MP/s > Higher Is Better Linux 5.13 ......... 10.91 |=================================================== Linux 5.15-rc1 ..... 10.43 |================================================= flush-in-the-ref ... 10.91 |=================================================== increase-the-flush . 10.87 |=================================================== 5.15 3reverts ...... 10.86 |=================================================== JPEG XL libjxl 0.5 Input: PNG - Encode Speed: 8 MP/s > Higher Is Better Linux 5.13 ......... 1.14 |==================================================== Linux 5.15-rc1 ..... 1.11 |=================================================== flush-in-the-ref ... 1.14 |==================================================== increase-the-flush . 1.14 |==================================================== 5.15 3reverts ...... 1.14 |==================================================== JPEG XL libjxl 0.5 Input: JPEG - Encode Speed: 5 MP/s > Higher Is Better Linux 5.13 ......... 101.71 |================================================== Linux 5.15-rc1 ..... 93.18 |============================================== flush-in-the-ref ... 101.69 |================================================== increase-the-flush . 101.21 |================================================== 5.15 3reverts ...... 101.08 |================================================== JPEG XL libjxl 0.5 Input: JPEG - Encode Speed: 7 MP/s > Higher Is Better Linux 5.13 ......... 102.07 |================================================== Linux 5.15-rc1 ..... 93.10 |============================================== flush-in-the-ref ... 101.52 |================================================== increase-the-flush . 101.02 |================================================= 5.15 3reverts ...... 101.70 |================================================== JPEG XL libjxl 0.5 Input: JPEG - Encode Speed: 8 MP/s > Higher Is Better Linux 5.13 ......... 36.22 |=================================================== Linux 5.15-rc1 ..... 34.57 |================================================= flush-in-the-ref ... 35.96 |=================================================== increase-the-flush . 35.97 |=================================================== 5.15 3reverts ...... 35.86 |================================================== Timed GDB GNU Debugger Compilation 10.2 Time To Compile Seconds < Lower Is Better Linux 5.13 ......... 41.09 |================================================= Linux 5.15-rc1 ..... 42.75 |=================================================== flush-in-the-ref ... 41.15 |================================================= increase-the-flush . 42.11 |================================================== 5.15 3reverts ...... 41.50 |================================================== Timed Linux Kernel Compilation 5.14 Time To Compile Seconds < Lower Is Better Linux 5.13 ......... 46.59 |================================================ Linux 5.15-rc1 ..... 48.97 |=================================================== flush-in-the-ref ... 47.03 |================================================= increase-the-flush . 49.14 |=================================================== 5.15 3reverts ...... 48.08 |================================================== Timed LLVM Compilation 12.0 Build System: Ninja Seconds < Lower Is Better Linux 5.13 ......... 374.52 |================================================= Linux 5.15-rc1 ..... 381.96 |================================================== flush-in-the-ref ... 374.98 |================================================= increase-the-flush . 379.79 |================================================== 5.15 3reverts ...... 378.23 |================================================== Timed LLVM Compilation 12.0 Build System: Unix Makefiles Seconds < Lower Is Better Linux 5.13 ......... 391.94 |================================================ Linux 5.15-rc1 ..... 407.82 |================================================== flush-in-the-ref ... 398.58 |================================================= increase-the-flush . 402.54 |================================================= 5.15 3reverts ...... 402.34 |================================================= Timed Mesa Compilation 21.0 Time To Compile Seconds < Lower Is Better Linux 5.13 ......... 29.84 |================================================== Linux 5.15-rc1 ..... 30.63 |=================================================== flush-in-the-ref ... 30.09 |================================================== increase-the-flush . 30.57 |=================================================== 5.15 3reverts ...... 30.46 |=================================================== Google SynthMark 20201109 Test: VoiceMark_100 Voices > Higher Is Better Linux 5.13 ......... 978.32 |================================================== Linux 5.15-rc1 ..... 937.74 |================================================ flush-in-the-ref ... 933.41 |================================================ increase-the-flush . 951.47 |================================================= 5.15 3reverts ...... 959.44 |================================================= RawTherapee Total Benchmark Time Seconds < Lower Is Better Linux 5.13 ......... 46.66 |================================================ Linux 5.15-rc1 ..... 49.35 |=================================================== flush-in-the-ref ... 46.49 |================================================ increase-the-flush . 47.04 |================================================= 5.15 3reverts ...... 46.61 |================================================ Stress-NG 0.11.07 Test: MMAP Bogo Ops/s > Higher Is Better Linux 5.13 ......... 505.27 |================================================= Linux 5.15-rc1 ..... 436.09 |========================================== flush-in-the-ref ... 517.35 |================================================== increase-the-flush . 460.12 |============================================ 5.15 3reverts ...... 478.20 |============================================== Stress-NG 0.11.07 Test: MEMFD Bogo Ops/s > Higher Is Better Linux 5.13 ......... 1390.03 |================================================ Linux 5.15-rc1 ..... 1220.36 |========================================== flush-in-the-ref ... 1420.26 |================================================= increase-the-flush . 1260.68 |=========================================== 5.15 3reverts ...... 1324.43 |============================================== Stress-NG 0.11.07 Test: Context Switching Bogo Ops/s > Higher Is Better Linux 5.13 ......... 6311126.11 |============================================== Linux 5.15-rc1 ..... 3699594.65 |=========================== flush-in-the-ref ... 3732358.21 |=========================== increase-the-flush . 3814568.84 |============================ 5.15 3reverts ...... 3985505.63 |=============================