Ryzen 9 3900X Linux SMT Performance AMD Ryzen 9 3900X SMT benchmarks by Michael Larabel. SMT Enabled - Default: Processor: AMD Ryzen 9 3900X 12-Core @ 3.80GHz (12 Cores / 24 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (0702 BIOS), Chipset: AMD Device 1480, Memory: 16384MB, Disk: 2000GB Force MP600, Graphics: Sapphire AMD Radeon RX 550 640SP / 560/560X 4GB (1300/1750MHz), Audio: AMD Device aae0, Monitor: ASUS VP28U, Network: Realtek Device 8125 + Intel I211 + Intel Device 2723 OS: Ubuntu 18.04, Kernel: 5.3.0-999-generic (x86_64) 20190725, Desktop: GNOME Shell 3.28.4, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, OpenGL: 4.5 Mesa 19.0.2 (LLVM 8.0.0), Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 3840x2160 SMT Disabled: Processor: AMD Ryzen 9 3900X 12-Core @ 3.80GHz (12 Cores), Motherboard: ASUS ROG CROSSHAIR VIII HERO (WI-FI) (0702 BIOS), Chipset: AMD Device 1480, Memory: 16384MB, Disk: 2000GB Force MP600, Graphics: Sapphire AMD Radeon RX 550 640SP / 560/560X 4GB (1300/1750MHz), Audio: AMD Device aae0, Monitor: ASUS VP28U, Network: Realtek Device 8125 + Intel I211 + Intel Device 2723 OS: Ubuntu 18.04, Kernel: 5.3.0-999-generic (x86_64) 20190725, Desktop: GNOME Shell 3.28.4, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, OpenGL: 4.5 Mesa 19.0.2 (LLVM 8.0.0), Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 3840x2160 2700 - 4 GHz: Processor: AMD Ryzen 7 2700 Eight-Core @ 4.00GHz (8 Cores / 16 Threads), Motherboard: ASUS ROG STRIX B350-F GAMING (5008 BIOS), Chipset: AMD 17h, Memory: 16384MB, Disk: 250GB Western Digital WDS250G2X0C-00L350 + 2000GB Seagate ST2000DM006-2DM1 + 240GB Corsair Force GS + 500GB Western Digital WD5000BEKT-0 + 1000GB Seagate ST1000LM024 HN-M, Graphics: AMD Radeon RX 470/480/570/570X/580/580X/590 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: LG ULTRAWIDE, Network: Intel I211 + Qualcomm Atheros AR93xx OS: Arch Linux, Kernel: 5.2.5-arch1-1-ryzen (x86_64), Desktop: GNOME Shell 3.32.2, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, OpenGL: 4.5 Mesa 19.1.3 (LLVM 8.0.1), Vulkan: 1.1.90, Compiler: GCC 9.1.0 + Clang 8.0.1, File-System: xfs, Screen Resolution: 2560x1080 2700 - 4 GHz II: Processor: AMD Ryzen 7 2700 Eight-Core @ 4.00GHz (8 Cores / 16 Threads), Motherboard: ASUS ROG STRIX B350-F GAMING (5008 BIOS), Chipset: AMD 17h, Memory: 16384MB, Disk: 250GB Western Digital WDS250G2X0C-00L350 + 2000GB Seagate ST2000DM006-2DM1 + 240GB Corsair Force GS + 500GB Western Digital WD5000BEKT-0 + 1000GB Seagate ST1000LM024 HN-M, Graphics: AMD Radeon RX 470/480/570/570X/580/580X/590 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: LG ULTRAWIDE, Network: Intel I211 + Qualcomm Atheros AR93xx OS: Arch Linux, Kernel: 5.2.5-arch1-1-ryzen (x86_64), Desktop: GNOME Shell 3.32.2, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, OpenGL: 4.5 Mesa 19.1.3 (LLVM 8.0.1), Vulkan: 1.1.90, Compiler: GCC 9.1.0 + Clang 8.0.1, File-System: xfs, Screen Resolution: 2560x1080 2700 - 4 GHz Arch kernel: Processor: AMD Ryzen 7 2700 Eight-Core @ 4.00GHz (8 Cores / 16 Threads), Motherboard: ASUS ROG STRIX B350-F GAMING (5008 BIOS), Chipset: AMD 17h, Memory: 16384MB, Disk: 250GB Western Digital WDS250G2X0C-00L350 + 2000GB Seagate ST2000DM006-2DM1 + 240GB Corsair Force GS + 500GB Western Digital WD5000BEKT-0 + 1000GB Seagate ST1000LM024 HN-M, Graphics: AMD Radeon RX 470/480/570/570X/580/580X/590 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: LG ULTRAWIDE, Network: Intel I211 + Qualcomm Atheros AR93xx OS: Arch Linux, Kernel: 5.2.5-arch1-1-ARCH (x86_64), Desktop: GNOME Shell 3.32.2, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, OpenGL: 4.5 Mesa 19.1.3 (LLVM 8.0.1), Vulkan: 1.1.90, Compiler: GCC 9.1.0 + Clang 8.0.1, File-System: xfs, Screen Resolution: 2560x1080 XZ Compression 5.2.4 Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9 Seconds < Lower Is Better SMT Enabled - Default .... 25.60 |=========================== SMT Disabled ............. 37.18 |======================================= 2700 - 4 GHz II .......... 43.00 |============================================= 2700 - 4 GHz Arch kernel . 43.06 |============================================= Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better SMT Enabled - Default .... 1387 |============================================== SMT Disabled ............. 1369 |============================================= 2700 - 4 GHz II .......... 1256 |========================================== 2700 - 4 GHz Arch kernel . 1255 |========================================== CloverLeaf Lagrangian-Eulerian Hydrodynamics Seconds < Lower Is Better SMT Enabled - Default .... 3.79 |================================= SMT Disabled ............. 3.27 |============================= 2700 - 4 GHz II .......... 5.02 |============================================ 2700 - 4 GHz Arch kernel . 5.23 |============================================== GROMACS 2018.3 Water Benchmark Ns Per Day > Higher Is Better SMT Enabled - Default .... 0.99 |============================================== SMT Disabled ............. 0.92 |=========================================== 2700 - 4 GHz II .......... 0.20 |========= 2700 - 4 GHz Arch kernel . 0.20 |========= Parboil 2.5 Test: OpenMP LBM Seconds < Lower Is Better SMT Enabled - Default .... 151.13 |============================================ SMT Disabled ............. 74.27 |====================== 2700 - 4 GHz II .......... 140.11 |========================================= 2700 - 4 GHz Arch kernel . 142.90 |========================================== Parboil 2.5 Test: OpenMP CUTCP Seconds < Lower Is Better SMT Enabled - Default .... 2.22 |================================ SMT Disabled ............. 3.22 |============================================== 2700 - 4 GHz II .......... 3.15 |============================================= 2700 - 4 GHz Arch kernel . 3.14 |============================================= Parboil 2.5 Test: OpenMP Stencil Seconds < Lower Is Better SMT Enabled - Default .... 15.12 |======================== SMT Disabled ............. 28.89 |============================================= 2700 - 4 GHz II .......... 25.62 |======================================== 2700 - 4 GHz Arch kernel . 15.74 |========================= Parboil 2.5 Test: OpenMP MRI Gridding Seconds < Lower Is Better SMT Enabled - Default .... 28.84 |============= SMT Disabled ............. 18.48 |======== 2700 - 4 GHz II .......... 100.58 |============================================ 2700 - 4 GHz Arch kernel . 100.56 |============================================ MKL-DNN 2019-04-16 Harness: Deconvolution Batch deconv_3d - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 5.05 |=== SMT Disabled ............. 4.89 |=== 2700 - 4 GHz II .......... 83.14 |============================================= 2700 - 4 GHz Arch kernel . 82.61 |============================================= NAS Parallel Benchmarks 3.3.1 Test / Class: BT.A Total Mop/s > Higher Is Better SMT Enabled - Default .... 6417 |============================================== SMT Disabled ............. 6440 |============================================== 2700 - 4 GHz ............. 1121 |======== 2700 - 4 GHz II .......... 1116 |======== 2700 - 4 GHz Arch kernel . 1121 |======== NAS Parallel Benchmarks 3.3.1 Test / Class: EP.C Total Mop/s > Higher Is Better SMT Enabled - Default .... 477 |=============================================== SMT Disabled ............. 481 |=============================================== 2700 - 4 GHz ............. 370 |==================================== 2700 - 4 GHz II .......... 384 |====================================== 2700 - 4 GHz Arch kernel . 394 |====================================== NAS Parallel Benchmarks 3.3.1 Test / Class: FT.A Total Mop/s > Higher Is Better SMT Enabled - Default .... 5711 |============================================== SMT Disabled ............. 5702 |============================================== 2700 - 4 GHz ............. 4187 |================================== 2700 - 4 GHz II .......... 4216 |================================== 2700 - 4 GHz Arch kernel . 4193 |================================== NAS Parallel Benchmarks 3.3.1 Test / Class: FT.B Total Mop/s > Higher Is Better SMT Enabled - Default .... 6193 |============================================== SMT Disabled ............. 6219 |============================================== 2700 - 4 GHz ............. 4042 |============================== 2700 - 4 GHz II .......... 4457 |================================= 2700 - 4 GHz Arch kernel . 4484 |================================= NAS Parallel Benchmarks 3.3.1 Test / Class: LU.A Total Mop/s > Higher Is Better SMT Enabled - Default .... 50909 |=========================================== SMT Disabled ............. 52829 |============================================= 2700 - 4 GHz ............. 4191 |==== 2700 - 4 GHz II .......... 5614 |===== 2700 - 4 GHz Arch kernel . 5527 |===== NAS Parallel Benchmarks 3.3.1 Test / Class: LU.C Total Mop/s > Higher Is Better SMT Enabled - Default .... 21265 |============================================ SMT Disabled ............. 21548 |============================================= 2700 - 4 GHz II .......... 5309 |=========== 2700 - 4 GHz Arch kernel . 5321 |=========== MKL-DNN 2019-04-16 Harness: Convolution Batch conv_3d - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 18.70 |==== SMT Disabled ............. 17.56 |==== 2700 - 4 GHz II .......... 206.21 |============================================ 2700 - 4 GHz Arch kernel . 204.87 |============================================ NAS Parallel Benchmarks 3.3.1 Test / Class: SP.A Total Mop/s > Higher Is Better SMT Enabled - Default .... 4294 |============================================= SMT Disabled ............. 4399 |============================================== 2700 - 4 GHz II .......... 525 |===== 2700 - 4 GHz Arch kernel . 524 |===== MKL-DNN 2019-04-16 Harness: Convolution Batch conv_googlenet_v3 - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 113 |== SMT Disabled ............. 109 |== 2700 - 4 GHz II .......... 2329 |============================================== 2700 - 4 GHz Arch kernel . 2330 |============================================== Rodinia 2.4 Test: OpenMP LavaMD Seconds < Lower Is Better SMT Enabled - Default .... 52.26 |====================================== SMT Disabled ............. 62.20 |============================================= 2700 - 4 GHz II .......... 30.30 |====================== 2700 - 4 GHz Arch kernel . 30.21 |====================== MKL-DNN 2019-04-16 Harness: Convolution Batch conv_alexnet - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 258 |== SMT Disabled ............. 248 |== 2700 - 4 GHz II .......... 5398 |============================================== 2700 - 4 GHz Arch kernel . 5405 |============================================== MKL-DNN 2019-04-16 Harness: Deconvolution Batch deconv_all - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 5994 |======= SMT Disabled ............. 4559 |===== 2700 - 4 GHz II .......... 40758 |============================================= 2700 - 4 GHz Arch kernel . 40949 |============================================= MKL-DNN 2019-04-16 Harness: Deconvolution Batch deconv_1d - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 26.52 |===== SMT Disabled ............. 20.67 |==== 2700 - 4 GHz II .......... 239.24 |============================================ 2700 - 4 GHz Arch kernel . 239.04 |============================================ Rodinia 2.4 Test: OpenMP CFD Solver Seconds < Lower Is Better SMT Enabled - Default .... 13.91 |======================= SMT Disabled ............. 15.50 |========================= 2700 - 4 GHz II .......... 27.64 |============================================= 2700 - 4 GHz Arch kernel . 27.62 |============================================= MKL-DNN 2019-04-16 Harness: Convolution Batch conv_all - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 2108 |== SMT Disabled ............. 2011 |== 2700 - 4 GHz II .......... 43446 |============================================= 2700 - 4 GHz Arch kernel . 43401 |============================================= Rodinia 2.4 Test: OpenMP Streamcluster Seconds < Lower Is Better SMT Enabled - Default .... 21.20 |============================================= SMT Disabled ............. 16.02 |================================== 2700 - 4 GHz II .......... 20.72 |============================================ 2700 - 4 GHz Arch kernel . 20.71 |============================================ MKL-DNN 2019-04-16 Harness: IP Batch All - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 210.10 |========== SMT Disabled ............. 89.54 |==== 2700 - 4 GHz II .......... 920.89 |============================================ 2700 - 4 GHz Arch kernel . 916.77 |============================================ MKL-DNN 2019-04-16 Harness: IP Batch 1D - Data Type: f32 ms < Lower Is Better SMT Enabled - Default .... 17.25 |========== SMT Disabled ............. 7.11 |==== 2700 - 4 GHz II .......... 74.59 |============================================= 2700 - 4 GHz Arch kernel . 74.69 |============================================= NAMD 2.13b1 ATPase Simulation - 327,506 Atoms days/ns < Lower Is Better SMT Enabled - Default .... 1.44394 |============================ SMT Disabled ............. 1.72944 |================================= 2700 - 4 GHz II .......... 2.24837 |=========================================== 2700 - 4 GHz Arch kernel . 2.24891 |=========================================== CP2K Molecular Dynamics 6.1 Fayalite-FIST Data Seconds < Lower Is Better SMT Enabled - Default .... 323 |============================ SMT Disabled ............. 447 |======================================= 2700 - 4 GHz II .......... 528 |============================================== 2700 - 4 GHz Arch kernel . 534 |=============================================== Coremark 1.0 CoreMark Size 666 - Iterations Per Second Iterations/Sec > Higher Is Better SMT Enabled - Default .... 532588 |============================================ SMT Disabled ............. 376805 |=============================== 2700 - 4 GHz II .......... 331952 |=========================== 2700 - 4 GHz Arch kernel . 330608 |=========================== Primesieve 7.4 1e12 Prime Number Generation Seconds < Lower Is Better SMT Enabled - Default .... 15.43 |============================= SMT Disabled ............. 16.72 |=============================== 2700 - 4 GHz II .......... 24.08 |============================================= 2700 - 4 GHz Arch kernel . 24.10 |============================================= Rust Prime Benchmark Prime Number Test To 200,000,000 Seconds < Lower Is Better SMT Enabled - Default . 30.87 |===================================== SMT Disabled .......... 40.48 |================================================ Stockfish 9 Total Time Nodes Per Second > Higher Is Better SMT Enabled - Default .... 39137992 |========================================== SMT Disabled ............. 28765888 |=============================== 2700 - 4 GHz II .......... 23248448 |========================= 2700 - 4 GHz Arch kernel . 22925851 |========================= 7-Zip Compression 16.02 Compress Speed Test MIPS > Higher Is Better SMT Enabled - Default .... 77922 |============================================= SMT Disabled ............. 59108 |================================== 2700 - 4 GHz II .......... 37997 |====================== 2700 - 4 GHz Arch kernel . 37588 |====================== Zstd Compression 1.3.4 Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19 Seconds < Lower Is Better SMT Enabled - Default .... 18.05 |========================== SMT Disabled ............. 21.50 |=============================== 2700 - 4 GHz II .......... 31.07 |============================================= 2700 - 4 GHz Arch kernel . 30.94 |============================================= Open FMM Nero2D 2.0.2 Total Time Seconds < Lower Is Better SMT Enabled - Default . 72.34 |================================================ SMT Disabled .......... 67.01 |============================================ asmFish 2018-07-23 1024 Hash Memory, 26 Depth Nodes/second > Higher Is Better SMT Enabled - Default .... 39682621 |========================================== SMT Disabled ............. 28280592 |============================== 2700 - 4 GHz II .......... 24094759 |========================== 2700 - 4 GHz Arch kernel . 24266366 |========================== Timed Linux Kernel Compilation 4.18 Time To Compile Seconds < Lower Is Better SMT Enabled - Default .... 48.63 |==================== SMT Disabled ............. 58.80 |======================== 2700 - 4 GHz II .......... 104.58 |=========================================== 2700 - 4 GHz Arch kernel . 105.90 |============================================ Swet 1.5.16 Average Operations Per Second > Higher Is Better SMT Enabled - Default .... 852324587 |========================================= SMT Disabled ............. 860433765 |========================================= 2700 - 4 GHz II .......... 672310326 |================================ 2700 - 4 GHz Arch kernel . 669827962 |================================ GraphicsMagick 1.3.30 Operation: Swirl Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 231 |=============================================== SMT Disabled ............. 233 |=============================================== 2700 - 4 GHz II .......... 195 |======================================= 2700 - 4 GHz Arch kernel . 194 |======================================= GraphicsMagick 1.3.30 Operation: Rotate Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 263 |============================================== SMT Disabled ............. 269 |=============================================== 2700 - 4 GHz II .......... 241 |========================================== 2700 - 4 GHz Arch kernel . 241 |========================================== GraphicsMagick 1.3.30 Operation: Sharpen Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 165 |============================================= SMT Disabled ............. 173 |=============================================== 2700 - 4 GHz II .......... 144 |======================================= 2700 - 4 GHz Arch kernel . 144 |======================================= GraphicsMagick 1.3.30 Operation: Enhanced Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 197 |============================================== SMT Disabled ............. 203 |=============================================== 2700 - 4 GHz II .......... 164 |====================================== 2700 - 4 GHz Arch kernel . 164 |====================================== GraphicsMagick 1.3.30 Operation: Resizing Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 266 |============================================== SMT Disabled ............. 272 |=============================================== 2700 - 4 GHz II .......... 226 |======================================= 2700 - 4 GHz Arch kernel . 227 |======================================= GraphicsMagick 1.3.30 Operation: Noise-Gaussian Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 169 |============================================== SMT Disabled ............. 145 |======================================== 2700 - 4 GHz II .......... 172 |=============================================== 2700 - 4 GHz Arch kernel . 169 |============================================== GraphicsMagick 1.3.30 Operation: HWB Color Space Iterations Per Minute > Higher Is Better SMT Enabled - Default .... 285 |=============================================== SMT Disabled ............. 283 |=============================================== 2700 - 4 GHz II .......... 249 |========================================= 2700 - 4 GHz Arch kernel . 248 |========================================= SVT-AV1 0.5 1080p 8-bit YUV To AV1 Video Encode Frames Per Second > Higher Is Better SMT Enabled - Default .... 41.35 |============================================= SMT Disabled ............. 32.24 |=================================== 2700 - 4 GHz II .......... 26.08 |============================ 2700 - 4 GHz Arch kernel . 26.01 |============================ x265 3.0 H.265 1080p Video Encoding Frames Per Second > Higher Is Better SMT Enabled - Default .... 40.66 |===================================== SMT Disabled ............. 48.90 |============================================= 2700 - 4 GHz II .......... 31.06 |============================= 2700 - 4 GHz Arch kernel . 31.48 |============================= C-Ray 1.1 Total Time - 4K, 16 Rays Per Pixel Seconds < Lower Is Better SMT Enabled - Default .... 53.23 |===================================== SMT Disabled ............. 56.14 |======================================= 2700 - 4 GHz II .......... 64.34 |============================================= 2700 - 4 GHz Arch kernel . 64.36 |============================================= TTSIOD 3D Renderer 2.3b Phong Rendering With Soft-Shadow Mapping FPS > Higher Is Better SMT Enabled - Default .... 644 |=============================================== SMT Disabled ............. 483 |=================================== 2700 - 4 GHz II .......... 427 |=============================== 2700 - 4 GHz Arch kernel . 427 |=============================== Chaos Group V-RAY 4.10.03 Mode: CPU Ksamples > Higher Is Better SMT Enabled - Default . 20558 |================================================ SMT Disabled .......... 15709 |===================================== SVT-HEVC 2019-02-03 1080p 8-bit YUV To HEVC Video Encode Frames Per Second > Higher Is Better SMT Enabled - Default .... 251 |=============================================== SMT Disabled ............. 201 |====================================== 2700 - 4 GHz II .......... 153 |============================= 2700 - 4 GHz Arch kernel . 153 |============================= Blender 2.79a Blend File: Barbershop - Compute: CPU-Only Seconds < Lower Is Better SMT Enabled - Default .... 710 |============================ SMT Disabled ............. 1027 |========================================= 2700 - 4 GHz II .......... 1160 |============================================== 2700 - 4 GHz Arch kernel . 1160 |============================================== FFmpeg 4.0.2 H.264 HD To NTSC DV Seconds < Lower Is Better SMT Enabled - Default .... 8.45 |============================== SMT Disabled ............. 4.02 |============== 2700 - 4 GHz II .......... 12.55 |============================================= 2700 - 4 GHz Arch kernel . 12.69 |============================================= Smallpt 1.0 Global Illumination Renderer; 128 Samples Seconds < Lower Is Better SMT Enabled - Default .... 8.33 |================================ SMT Disabled ............. 10.62 |========================================= 2700 - 4 GHz II .......... 11.63 |============================================= 2700 - 4 GHz Arch kernel . 11.63 |============================================= IndigoBench 4.0.64 Scene: Bedroom M samples/s > Higher Is Better SMT Enabled - Default .... 2.03 |============================================== SMT Disabled ............. 1.38 |=============================== 2700 - 4 GHz II .......... 1.24 |============================ 2700 - 4 GHz Arch kernel . 1.24 |============================ IndigoBench 4.0.64 Scene: Supercar M samples/s > Higher Is Better SMT Enabled - Default .... 4.35 |============================================== SMT Disabled ............. 3.06 |================================ 2700 - 4 GHz II .......... 2.64 |============================ 2700 - 4 GHz Arch kernel . 2.62 |============================ Appleseed 2.0 Beta Scene: Emily Seconds < Lower Is Better SMT Enabled - Default .... 272 |============================== SMT Disabled ............. 370 |========================================= 2700 - 4 GHz II .......... 424 |=============================================== 2700 - 4 GHz Arch kernel . 426 |=============================================== Appleseed 2.0 Beta Scene: Disney Material Seconds < Lower Is Better SMT Enabled - Default .... 168 |================================= SMT Disabled ............. 198 |======================================= 2700 - 4 GHz II .......... 233 |============================================== 2700 - 4 GHz Arch kernel . 236 |=============================================== Appleseed 2.0 Beta Scene: Material Tester Seconds < Lower Is Better SMT Enabled - Default .... 164 |================================== SMT Disabled ............. 217 |============================================== 2700 - 4 GHz II .......... 224 |=============================================== 2700 - 4 GHz Arch kernel . 223 |===============================================