EPYC 7763 Linux 5.15 Code Compilation 2 x AMD EPYC 7763 64-Core testing with a AMD DAYTONA_X (RYM1001D BIOS) and ASPEED on Ubuntu 21.04 via the Phoronix Test Suite. Linux 5.14: Processor: 2 x AMD EPYC 7763 64-Core @ 2.45GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RYM1001D BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710 OS: Ubuntu 21.04, Kernel: 5.14.0-051400-generic (x86_64), Desktop: GNOME Shell 3.38.4, Display Server: X Server, Vulkan: 1.0.2, Compiler: GCC 10.3.0, File-System: ext4, Screen Resolution: 1920x1080 Linux 5.15-rc1: Processor: 2 x AMD EPYC 7763 64-Core @ 2.45GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RYM1001D BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710 OS: Ubuntu 21.04, Kernel: 5.15.0-rc1-phx (x86_64) 20210913, Desktop: GNOME Shell 3.38.4, Display Server: X Server, Vulkan: 1.0.2, Compiler: GCC 10.3.0, File-System: ext4, Screen Resolution: 1920x1080 increase-the-flush: Processor: 2 x AMD EPYC 7763 64-Core @ 2.45GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RYM1001D BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710 OS: Ubuntu 21.04, Kernel: 5.15.0-rc2 rease-the-flush (x86_64) 20210921, Desktop: GNOME Shell 3.38.4, Display Server: X Server 1.20.11, Vulkan: 1.0.2, Compiler: GCC 10.3.0, File-System: ext4, Screen Resolution: 1920x1080 flush-in-the-ref: Processor: 2 x AMD EPYC 7763 64-Core @ 2.45GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RYM1001D BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710 OS: Ubuntu 21.04, Kernel: 5.15.0-rc2-flush-in-the-ref (x86_64) 20210921, Desktop: GNOME Shell 3.38.4, Display Server: X Server 1.20.11, Vulkan: 1.0.2, Compiler: GCC 10.3.0, File-System: ext4, Screen Resolution: 1920x1080 5.15 3revert: Processor: 2 x AMD EPYC 7763 64-Core @ 2.45GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RYM1001D BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710 OS: Ubuntu 21.04, Kernel: 5.15.0-rc2-3reverts (x86_64) 20210922, Desktop: GNOME Shell 3.38.4, Display Server: X Server 1.20.11, Vulkan: 1.0.2, Compiler: GCC 10.3.0, File-System: ext4, Screen Resolution: 1920x1080 Timed Apache Compilation 2.4.41 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 20.43 |================================================== Linux 5.15-rc1 ..... 20.81 |=================================================== increase-the-flush . 20.60 |================================================== flush-in-the-ref ... 20.37 |================================================== 5.15 3revert ....... 20.50 |================================================== Timed FFmpeg Compilation 4.4 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 14.72 |================================================== Linux 5.15-rc1 ..... 14.99 |=================================================== increase-the-flush . 14.53 |================================================= flush-in-the-ref ... 14.45 |================================================= 5.15 3revert ....... 14.47 |================================================= Timed GDB GNU Debugger Compilation 10.2 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 44.48 |================================================= Linux 5.15-rc1 ..... 46.26 |=================================================== increase-the-flush . 44.92 |================================================== flush-in-the-ref ... 44.19 |================================================= 5.15 3revert ....... 45.48 |================================================== Timed Godot Game Engine Compilation 3.2.3 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 50.82 |================================================== Linux 5.15-rc1 ..... 52.30 |=================================================== increase-the-flush . 52.13 |=================================================== flush-in-the-ref ... 50.54 |================================================= 5.15 3revert ....... 51.23 |================================================== Timed ImageMagick Compilation 6.9.0 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 11.30 |================================================= Linux 5.15-rc1 ..... 11.66 |=================================================== increase-the-flush . 11.44 |================================================== flush-in-the-ref ... 11.40 |================================================== 5.15 3revert ....... 11.51 |================================================== Timed Linux Kernel Compilation 5.14 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 17.80 |================================================== Linux 5.15-rc1 ..... 18.11 |=================================================== increase-the-flush . 17.66 |================================================== flush-in-the-ref ... 17.56 |================================================= 5.15 3revert ....... 17.76 |================================================== Timed LLVM Compilation 12.0 Build System: Ninja Seconds < Lower Is Better Linux 5.14 ......... 97.39 |================================================== Linux 5.15-rc1 ..... 98.43 |=================================================== increase-the-flush . 97.76 |=================================================== flush-in-the-ref ... 97.15 |================================================== 5.15 3revert ....... 97.39 |================================================== Timed LLVM Compilation 12.0 Build System: Unix Makefiles Seconds < Lower Is Better Linux 5.14 ......... 177.02 |================================================== Linux 5.15-rc1 ..... 178.73 |================================================== increase-the-flush . 178.36 |================================================== flush-in-the-ref ... 175.21 |================================================= 5.15 3revert ....... 175.99 |================================================= Timed Mesa Compilation 21.0 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 16.83 |=================================================== Linux 5.15-rc1 ..... 16.92 |=================================================== increase-the-flush . 16.79 |=================================================== flush-in-the-ref ... 16.78 |=================================================== 5.15 3revert ....... 16.66 |================================================== Timed MPlayer Compilation 1.4 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 8.278 |================================================== Linux 5.15-rc1 ..... 8.371 |=================================================== increase-the-flush . 8.357 |=================================================== flush-in-the-ref ... 8.219 |================================================== 5.15 3revert ....... 8.259 |================================================== Timed Node.js Compilation 15.11 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 72.25 |=================================================== Linux 5.15-rc1 ..... 72.72 |=================================================== increase-the-flush . 72.20 |=================================================== flush-in-the-ref ... 71.82 |================================================== 5.15 3revert ....... 72.07 |=================================================== Timed PHP Compilation 7.4.2 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 34.85 |================================================== Linux 5.15-rc1 ..... 35.27 |=================================================== increase-the-flush . 34.78 |================================================== flush-in-the-ref ... 35.16 |=================================================== 5.15 3revert ....... 34.83 |================================================== Build2 0.13 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 55.15 |=================================================== Linux 5.15-rc1 ..... 55.49 |=================================================== increase-the-flush . 55.32 |=================================================== flush-in-the-ref ... 54.78 |================================================== 5.15 3revert ....... 54.67 |================================================== Timed Wasmer Compilation 1.0.2 Time To Compile Seconds < Lower Is Better Linux 5.14 ......... 52.55 |================================================== Linux 5.15-rc1 ..... 53.80 |=================================================== increase-the-flush . 52.91 |================================================== flush-in-the-ref ... 52.09 |================================================= 5.15 3revert ....... 52.80 |==================================================