GCC 8.1 vs. LLVM Clang 6.0 vs. AMD AOCC Compiler Benchmarking AMD EPYC 7601 32-Core compiler testing on Ubuntu Linux for a future article on Phoronix.com. GCC 7.3.0: Processor: AMD EPYC 7601 32-Core @ 2.20GHz (32 Cores / 64 Threads), Motherboard: TYAN B8026T70AE24HR (V0.05.B10 BIOS), Chipset: AMD Family 17h, Memory: 129024MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: modesetting 1.19.6, Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768 GCC 8.1.0: Processor: AMD EPYC 7601 32-Core @ 2.20GHz (32 Cores / 64 Threads), Motherboard: TYAN B8026T70AE24HR (V0.05.B10 BIOS), Chipset: AMD Family 17h, Memory: 129024MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: modesetting 1.19.6, Compiler: GCC 8.1.0, File-System: ext4, Screen Resolution: 1024x768 LLVM Clang 6.0.0: Processor: AMD EPYC 7601 32-Core @ 2.20GHz (32 Cores / 64 Threads), Motherboard: TYAN B8026T70AE24HR (V0.05.B10 BIOS), Chipset: AMD Family 17h, Memory: 129024MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: modesetting 1.19.6, Compiler: Clang 6.0.0-1ubuntu2, File-System: ext4, Screen Resolution: 1920x1080 AMD AOCC 1.2: Processor: AMD EPYC 7601 32-Core @ 2.20GHz (32 Cores / 64 Threads), Motherboard: TYAN B8026T70AE24HR (V0.05.B10 BIOS), Chipset: AMD Family 17h, Memory: 129024MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: modesetting 1.19.6, Compiler: Clang 6.0.0, File-System: ext4, Screen Resolution: 1920x1080 AMD Ryzen TR compiler test: Processor: AMD Ryzen Threadripper 1950X 16-Core @ 3.40GHz (16 Cores / 32 Threads), Motherboard: MSI X399 GAMING PRO CARBON AC (MS-7B09) v1.0 (1.50 BIOS), Chipset: AMD Family 17h, Memory: 32768MB, Disk: 240GB Radeon R7, Graphics: NVIDIA GeForce GTX 1080 8192MB, Audio: Realtek ALC1220, Monitor: DELL U2414H, Network: Intel I211 Gigabit Connection OS: Ubuntu 18.04, Kernel: 4.16.13-041613-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1080 SciMark 2.0 Computational Test: Monte Carlo Mflops > Higher Is Better GCC 7.3.0 .................. 195.68 |=============== GCC 8.1.0 .................. 556.36 |========================================== LLVM Clang 6.0.0 ........... 552.95 |========================================== AMD AOCC 1.2 ............... 552.72 |========================================== AMD Ryzen TR compiler test . 133.63 |========== SciMark 2.0 Computational Test: Sparse Matrix Multiply Mflops > Higher Is Better GCC 7.3.0 .................. 2400.05 |======================================= GCC 8.1.0 .................. 2461.82 |======================================== LLVM Clang 6.0.0 ........... 2425.93 |======================================= AMD AOCC 1.2 ............... 2551.80 |========================================= AMD Ryzen TR compiler test . 666.87 |=========== SciMark 2.0 Computational Test: Composite Mflops > Higher Is Better GCC 7.3.0 .................. 1858.13 |======================================= GCC 8.1.0 .................. 1929.63 |========================================= LLVM Clang 6.0.0 ........... 1889.53 |======================================== AMD AOCC 1.2 ............... 1902.20 |======================================== AMD Ryzen TR compiler test . 515.53 |=========== LAME MP3 Encoding 3.100 WAV To MP3 Seconds < Lower Is Better GCC 7.3.0 .................. 11.32 |============== GCC 8.1.0 .................. 10.60 |============= LLVM Clang 6.0.0 ........... 12.26 |=============== AMD AOCC 1.2 ............... 12.14 |=============== AMD Ryzen TR compiler test . 35.09 |=========================================== Timed PHP Compilation 7.1.9 Time To Compile Seconds < Lower Is Better GCC 7.3.0 .................. 65.45 |================ GCC 8.1.0 .................. 72.00 |================== LLVM Clang 6.0.0 ........... 100.54 |========================= AMD AOCC 1.2 ............... 167.69 |========================================== AMD Ryzen TR compiler test . 53.78 |============= C-Ray 1.1 Total Time Seconds < Lower Is Better GCC 7.3.0 .................. 2.92 |========================= GCC 8.1.0 .................. 2.51 |===================== LLVM Clang 6.0.0 ........... 4.46 |====================================== AMD AOCC 1.2 ............... 4.38 |===================================== AMD Ryzen TR compiler test . 5.21 |============================================ SciMark 2.0 Computational Test: Dense LU Matrix Factorization Mflops > Higher Is Better GCC 7.3.0 .................. 4783.60 |========================================= GCC 8.1.0 .................. 4718.95 |======================================== LLVM Clang 6.0.0 ........... 4815.41 |========================================= AMD AOCC 1.2 ............... 4753.51 |======================================== AMD Ryzen TR compiler test . 422.07 |==== GraphicsMagick 1.3.28 Operation: Resizing Iterations Per Minute > Higher Is Better GCC 7.3.0 .................. 182 |=================================== GCC 8.1.0 .................. 185 |=================================== LLVM Clang 6.0.0 ........... 144 |============================ AMD AOCC 1.2 ............... 147 |============================ AMD Ryzen TR compiler test . 235 |============================================= SciMark 2.0 Computational Test: Jacobi Successive Over-Relaxation Mflops > Higher Is Better GCC 7.3.0 .................. 1687.76 |========================================= GCC 8.1.0 .................. 1687.12 |========================================= LLVM Clang 6.0.0 ........... 1430.78 |=================================== AMD AOCC 1.2 ............... 1430.73 |=================================== AMD Ryzen TR compiler test . 1143.18 |============================ Bullet Physics Engine 2.81 Test: 1000 Convex Seconds < Lower Is Better GCC 7.3.0 .................. 6.39 |============================================ GCC 8.1.0 .................. 5.34 |===================================== LLVM Clang 6.0.0 ........... 5.30 |==================================== AMD AOCC 1.2 ............... 5.29 |==================================== AMD Ryzen TR compiler test . 4.51 |=============================== GraphicsMagick 1.3.28 Operation: HWB Color Space Iterations Per Minute > Higher Is Better GCC 7.3.0 .................. 208 |======================================= GCC 8.1.0 .................. 207 |====================================== LLVM Clang 6.0.0 ........... 173 |================================ AMD AOCC 1.2 ............... 172 |================================ AMD Ryzen TR compiler test . 243 |============================================= Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better GCC 7.3.0 .................. 965.46 |============================== GCC 8.1.0 .................. 1000.45 |================================ LLVM Clang 6.0.0 ........... 1061.03 |================================== AMD AOCC 1.2 ............... 931.68 |============================= AMD Ryzen TR compiler test . 1298.06 |========================================= GraphicsMagick 1.3.28 Operation: Blur Iterations Per Minute > Higher Is Better GCC 7.3.0 .................. 153 |======================================= GCC 8.1.0 .................. 153 |======================================= LLVM Clang 6.0.0 ........... 129 |================================= AMD AOCC 1.2 ............... 130 |================================= AMD Ryzen TR compiler test . 176 |============================================= Stockfish 2014-11-26 Total Time ms < Lower Is Better GCC 7.3.0 .................. 4891 |============================================ GCC 8.1.0 .................. 4451 |======================================== LLVM Clang 6.0.0 ........... 4304 |======================================= AMD AOCC 1.2 ............... 4230 |====================================== AMD Ryzen TR compiler test . 3650 |================================= Redis 4.0.8 Test: GET Requests Per Second > Higher Is Better GCC 7.3.0 .................. 1626714.96 |============================= GCC 8.1.0 .................. 1703998.46 |============================== LLVM Clang 6.0.0 ........... 1601951.58 |============================ AMD AOCC 1.2 ............... 1685855.71 |============================== AMD Ryzen TR compiler test . 2145461.08 |====================================== Bullet Physics Engine 2.81 Test: Convex Trimesh Seconds < Lower Is Better GCC 7.3.0 .................. 1.47 |============================================ GCC 8.1.0 .................. 1.32 |======================================== LLVM Clang 6.0.0 ........... 1.33 |======================================== AMD AOCC 1.2 ............... 1.31 |======================================= AMD Ryzen TR compiler test . 1.10 |================================= TSCP 1.81 AI Chess Performance Nodes Per Second > Higher Is Better GCC 7.3.0 .................. 861938 |================================ GCC 8.1.0 .................. 851545 |=============================== LLVM Clang 6.0.0 ........... 924435 |================================== AMD AOCC 1.2 ............... 919189 |================================== AMD Ryzen TR compiler test . 1120386 |========================================= Bullet Physics Engine 2.81 Test: Raytests Seconds < Lower Is Better GCC 7.3.0 .................. 3.33 |============================================ GCC 8.1.0 .................. 3.09 |========================================= LLVM Clang 6.0.0 ........... 3.18 |========================================== AMD AOCC 1.2 ............... 3.18 |========================================== AMD Ryzen TR compiler test . 2.57 |================================== GraphicsMagick 1.3.28 Operation: Sharpen Iterations Per Minute > Higher Is Better GCC 7.3.0 .................. 187 |========================================= GCC 8.1.0 .................. 188 |========================================== LLVM Clang 6.0.0 ........... 158 |=================================== AMD AOCC 1.2 ............... 157 |=================================== AMD Ryzen TR compiler test . 203 |============================================= GNU MPC 1.1.0 Multi-Precision Benchmark Global Score > Higher Is Better GCC 7.3.0 .................. 6153 |=================================== GCC 8.1.0 .................. 6133 |=================================== LLVM Clang 6.0.0 ........... 5953 |================================== AMD AOCC 1.2 ............... 5937 |================================== AMD Ryzen TR compiler test . 7663 |============================================ FLAC Audio Encoding 1.3.2 WAV To FLAC Seconds < Lower Is Better GCC 7.3.0 .................. 12.26 |========================================== GCC 8.1.0 .................. 12.50 |=========================================== LLVM Clang 6.0.0 ........... 11.13 |====================================== AMD AOCC 1.2 ............... 11.20 |======================================= AMD Ryzen TR compiler test . 9.76 |================================== AOBench Size: 2048 x 2048 - Total Time Seconds < Lower Is Better GCC 7.3.0 .................. 50.37 |========================================= GCC 8.1.0 .................. 50.74 |========================================= LLVM Clang 6.0.0 ........... 53.46 |=========================================== AMD AOCC 1.2 ............... 50.99 |========================================= AMD Ryzen TR compiler test . 42.02 |================================== Bullet Physics Engine 2.81 Test: Prim Trimesh Seconds < Lower Is Better GCC 7.3.0 .................. 1.12 |============================================ GCC 8.1.0 .................. 1.12 |============================================ LLVM Clang 6.0.0 ........... 1.10 |=========================================== AMD AOCC 1.2 ............... 1.10 |=========================================== AMD Ryzen TR compiler test . 0.89 |=================================== Bullet Physics Engine 2.81 Test: 136 Ragdolls Seconds < Lower Is Better GCC 7.3.0 .................. 3.05 |=========================================== GCC 8.1.0 .................. 3.05 |=========================================== LLVM Clang 6.0.0 ........... 3.14 |============================================ AMD AOCC 1.2 ............... 3.13 |============================================ AMD Ryzen TR compiler test . 2.50 |=================================== Timed HMMer Search 2.3.2 Pfam Database Search Seconds < Lower Is Better GCC 7.3.0 .................. 7.23 |========================================= GCC 8.1.0 .................. 7.71 |============================================ LLVM Clang 6.0.0 ........... 7.48 |=========================================== AMD AOCC 1.2 ............... 7.60 |=========================================== AMD Ryzen TR compiler test . 6.19 |=================================== GraphicsMagick 1.3.28 Operation: Local Adaptive Thresholding Iterations Per Minute > Higher Is Better GCC 7.3.0 .................. 111 |===================================== GCC 8.1.0 .................. 110 |==================================== LLVM Clang 6.0.0 ........... 113 |===================================== AMD AOCC 1.2 ............... 114 |====================================== AMD Ryzen TR compiler test . 136 |============================================= Redis 4.0.8 Test: LPUSH Requests Per Second > Higher Is Better GCC 7.3.0 .................. 1085511.33 |================================ GCC 8.1.0 .................. 1120554.29 |================================= LLVM Clang 6.0.0 ........... 1070777.00 |=============================== AMD AOCC 1.2 ............... 1121084.83 |================================= AMD Ryzen TR compiler test . 1306440.33 |====================================== Bullet Physics Engine 2.81 Test: 3000 Fall Seconds < Lower Is Better GCC 7.3.0 .................. 5.08 |============================================ GCC 8.1.0 .................. 5.00 |=========================================== LLVM Clang 6.0.0 ........... 5.09 |============================================ AMD AOCC 1.2 ............... 5.09 |============================================ AMD Ryzen TR compiler test . 4.23 |===================================== Bullet Physics Engine 2.81 Test: 1000 Stack Seconds < Lower Is Better GCC 7.3.0 .................. 5.91 |============================================ GCC 8.1.0 .................. 5.74 |=========================================== LLVM Clang 6.0.0 ........... 5.93 |============================================ AMD AOCC 1.2 ............... 5.93 |============================================ AMD Ryzen TR compiler test . 4.94 |===================================== Fhourstones 3.1 Complex Connect-4 Solving Kpos / sec > Higher Is Better GCC 7.3.0 .................. 10393.53 |=================================== GCC 8.1.0 .................. 10636.07 |==================================== LLVM Clang 6.0.0 ........... 10731.27 |==================================== AMD AOCC 1.2 ............... 11111.67 |====================================== AMD Ryzen TR compiler test . 11769.17 |======================================== SciMark 2.0 Computational Test: Fast Fourier Transform Mflops > Higher Is Better GCC 7.3.0 .................. 223.59 |========================================== GCC 8.1.0 .................. 223.94 |========================================== LLVM Clang 6.0.0 ........... 222.58 |========================================== AMD AOCC 1.2 ............... 222.25 |========================================== AMD Ryzen TR compiler test . 211.88 |======================================== NGINX Benchmark 1.9.9 Static Web Page Serving Requests Per Second > Higher Is Better GCC 7.3.0 ........ 23721.27 |================================================== GCC 8.1.0 ........ 23446.04 |================================================= LLVM Clang 6.0.0 . 23822.41 |================================================== AMD AOCC 1.2 ..... 23548.83 |================================================= Redis 4.0.8 Test: SET Requests Per Second > Higher Is Better GCC 7.3.0 .................. 1281816.44 |================================= GCC 8.1.0 .................. 1295530.83 |================================= LLVM Clang 6.0.0 ........... 1236762.29 |================================ AMD AOCC 1.2 ............... 1283809.91 |================================= AMD Ryzen TR compiler test . 1491502.10 |====================================== Redis 4.0.8 Test: SADD Requests Per Second > Higher Is Better GCC 7.3.0 .................. 1397462.96 |============================== GCC 8.1.0 .................. 1437758.66 |=============================== LLVM Clang 6.0.0 ........... 1362120.29 |============================= AMD AOCC 1.2 ............... 1426677.66 |=============================== AMD Ryzen TR compiler test . 1775972.83 |====================================== Redis 4.0.8 Test: LPOP Requests Per Second > Higher Is Better GCC 7.3.0 .................. 1702037.04 |============================== GCC 8.1.0 .................. 1731144.83 |============================== LLVM Clang 6.0.0 ........... 1744348.96 |=============================== AMD AOCC 1.2 ............... 1803447.31 |================================ AMD Ryzen TR compiler test . 2172973.42 |====================================== Smallpt 1.0 Global Illumination Renderer; 100 Samples Seconds < Lower Is Better GCC 7.3.0 .................. 4 |========= GCC 8.1.0 .................. 4 |========= AMD Ryzen TR compiler test . 20 |============================================== ebizzy 0.3 Records/s > Higher Is Better GCC 7.3.0 .................. 1111609 |========================================= GCC 8.1.0 .................. 1109200 |========================================= LLVM Clang 6.0.0 ........... 1118750 |========================================= AMD AOCC 1.2 ............... 1085189 |======================================== AMD Ryzen TR compiler test . 855873 |===============================