F# .NET versus Haskell GHC fastest performance Always look at the source code. If the fastest programs are hand-written vector instructions, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code. fannkuch-redux source secs mem gz cpu secs F# .NET #6 8.37 31,488 1103 32.55 F# .NET #5 9.84 36,572 927 38.67 Haskell GHC #5 11.28 19,644 850 44.70 Haskell GHC #4 50.67 19,768 671 51.56 Haskell GHC #6 15.24 21,632 1123 59.78 F# .NET 91.91 49,912 558 96.68 Haskell GHC #2 46.08 25,600 815 139.01 Haskell GHC 281.08 19,644 567 287.17 Haskell GHC #3 Make Error n-body source secs mem gz cpu secs F# .NET #6 4.97 34,020 1395 4.95 F# .NET #5 5.01 34,008 1363 5.00 F# .NET #4 6.88 34,256 1296 6.87 F# .NET #3 6.92 32,088 1624 6.89 F# .NET #2 7.39 34,188 1387 7.37 F# .NET 7.76 49,484 1272 7.82 Haskell GHC #2 11.05 19,668 1888 11.20 Haskell GHC 14.80 19,796 1713 15.00 spectral-norm source secs mem gz cpu secs Haskell GHC #4 1.48 19,796 994 5.70 F# .NET #4 1.62 36,224 738 6.01 Haskell GHC #2 21.48 19,796 410 21.63 F# .NET #2 Timed Out mandelbrot source secs mem gz cpu secs F# .NET #2 7.22 38,032 1054 28.29 Haskell GHC #2 12.34 45,184 789 49.13 Haskell GHC 52.21 260,352 628 53.00 F# .NET #5 Make Error F# .NET Make Error F# .NET #6 Make Error Haskell GHC #3 Make Error pidigits source secs mem gz cpu secs F# .NET #6 0.97 31,460 917 0.95 F# .NET #4 1.35 33,388 887 1.37 Haskell GHC #6 1.59 19,668 368 1.65 Haskell GHC #4 1.80 19,796 355 1.87 Haskell GHC #3 2.17 19,796 387 2.25 Haskell GHC #2 2.19 19,796 592 2.26 Haskell GHC 2.22 19,796 466 2.29 Haskell GHC #5 119.18 19,668 934 119.32 regex-redux source secs mem gz cpu secs Haskell GHC #3 1.07 411,520 2219 2.28 F# .NET #2 4.63 852,508 437 4.87 F# .NET #6 1.76 860,064 622 5.19 F# .NET #7 4.50 1,397,868 610 6.36 F# .NET Bad Output F# .NET #4 Bad Output fasta source secs mem gz cpu secs F# .NET #3 1.14 72,032 1361 4.13 F# .NET #4 1.24 90,032 1355 4.62 Haskell GHC #4 1.89 41,216 2017 4.73 Haskell GHC #5 2.45 19,652 2004 6.27 Haskell GHC #6 2.35 19,648 1885 6.49 Haskell GHC 7.23 19,644 975 7.32 Haskell GHC #3 8.72 616,692 1091 8.84 Haskell GHC #2 6.27 438,784 1323 19.11 k-nucleotide source secs mem gz cpu secs F# .NET #2 4.71 198,872 1932 16.34 F# .NET #5 4.92 198,784 1964 16.53 F# .NET #3 12.07 1,322,292 1124 26.04 F# .NET #4 10.47 1,321,944 1522 26.43 Haskell GHC 22.83 659,584 1067 77.84 F# .NET 24.10 1,108,380 713 83.78 Haskell GHC #2 22.61 802,944 1492 87.50 Haskell GHC #3 37.00 413,952 2266 133.16 F# .NET #6 Make Error reverse-complement source secs mem gz cpu secs Haskell GHC #4 3.76 505,600 1047 3.82 Haskell GHC #2 6.81 3,812,096 998 6.90 F# .NET 37.87 1,962,472 603 39.22 F# .NET #4 Timed Out F# .NET #5 Timed Out binary-trees source secs mem gz cpu secs Haskell GHC #8 2.38 256,828 807 5.96 Haskell GHC #7 3.18 298,112 817 7.81 Haskell GHC #6 4.08 242,720 601 8.35 F# .NET 10.25 1,214,512 517 12.10 Haskell GHC 13.52 669,824 500 15.19 F# .NET #7 5.26 1,671,736 527 15.45 Haskell GHC #3 6.91 650,240 544 15.45 Haskell GHC #5 7.34 674,944 567 15.67 Haskell GHC #2 14.46 263,936 498 16.05 F# .NET .NET SDK 8.0.200 Host Version: 8.0.2 Commit: 1381d5ebd2 <ServerGarbageCollection>true F# 8.0 Haskell GHC The Glorious Glasgow Haskell Compilation System, version 9.4.8 LLVM version 17.0.2 all F# .NET programs & measurements all Haskell GHC programs & measurements