Haskell GHC versus Java 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 Java #3 40.76 42,844 1264 40.83 Java 10.98 42,812 1289 43.36 Java #2 44.03 40,916 520 44.09 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 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 Java #5 6.78 41,384 1435 6.82 Java #4 6.87 41,188 1495 6.91 Java #2 7.42 41,308 1430 7.46 Java #3 7.47 41,256 1436 7.51 Java 7.85 41,512 1437 7.89 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 Java #3 1.66 42,924 762 6.21 Java 7.07 42,268 521 7.13 Java #2 2.40 42,164 956 9.25 Haskell GHC #2 21.48 19,796 410 21.63 mandelbrot source secs mem gz cpu secs Java #4 4.45 104,488 667 16.20 Java #2 4.13 83,152 802 16.22 Java #6 4.28 83,056 808 16.84 Java 25.70 41,388 671 25.76 Java #3 7.86 83,424 910 30.96 Haskell GHC #2 12.34 45,184 789 49.13 Haskell GHC 52.21 260,352 628 53.00 Haskell GHC #3 Make Error pidigits source secs mem gz cpu secs Java #3 0.93 40,860 770 0.96 Java #2 1.34 44,524 944 1.42 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 Java 7.61 486,236 807 8.69 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 Java 8.38 666,804 875 16.42 Java #3 5.17 671,372 935 17.04 Java #6 5.57 1,234,928 746 17.17 fasta source secs mem gz cpu secs Java #4 3.15 42,784 1528 3.26 Java #6 1.18 48,408 2549 3.71 Java #5 1.24 48,752 2478 3.81 Java #2 4.35 47,184 1259 4.50 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 Java 5.01 368,104 1821 16.33 Java #6 7.18 365,592 1614 25.01 Java #3 7.30 365,348 1642 25.39 Java #4 34.43 195,584 1887 34.79 Java #5 16.05 219,872 2225 38.17 Haskell GHC 22.83 659,584 1067 77.84 Haskell GHC #2 22.61 802,944 1492 87.50 Haskell GHC #3 37.00 413,952 2266 133.16 reverse-complement source secs mem gz cpu secs Haskell GHC #4 3.76 505,600 1047 3.82 Java #6 3.33 2,031,460 760 3.96 Java #5 4.73 1,096,344 1115 4.86 Java #4 5.57 1,889,928 656 5.68 Java #7 23.06 1,036,296 1654 6.31 Haskell GHC #2 6.81 3,812,096 998 6.90 Java #3 Bad Output Java #8 Bad Output binary-trees source secs mem gz cpu secs Java #4 4.50 2,081,744 846 5.22 Java #3 4.80 2,076,860 546 5.59 Java #6 4.84 2,097,072 535 5.60 Java #2 4.93 2,067,656 558 5.67 Haskell GHC #8 2.38 256,828 807 5.96 Haskell GHC #7 3.18 298,112 817 7.81 Java #7 2.57 1,728,452 841 8.00 Haskell GHC #6 4.08 242,720 601 8.35 Haskell GHC 13.52 669,824 500 15.19 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 Haskell GHC The Glorious Glasgow Haskell Compilation System, version 9.4.8 LLVM version 17.0.2 Java java 22 2024-03-19 Java HotSpot(TM) 64-Bit Server VM (build 22+36-2370, mixed mode, sharing) all Haskell GHC programs & measurements all Java programs & measurements