Erlang 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 Erlang 67.13 42,432 1044 264.91 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 Erlang #3 104.36 42,236 1405 104.40 spectral-norm source secs mem gz cpu secs 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 Erlang #2 11.75 51,176 753 45.92 Erlang 62.78 53,460 513 62.88 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 Erlang #3 52.26 72,520 798 208.31 Erlang #4 54.50 73,988 813 217.27 Erlang Bad Output Erlang #2 Bad Output 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 Erlang #3 3.38 56,616 568 4.45 Erlang #2 3.27 61,680 518 5.16 Erlang 6.01 74,676 565 6.75 Java 7.61 486,236 807 8.69 regex-redux source secs mem gz cpu secs 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 Erlang #6 22.65 5,214,780 1055 42.40 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 Erlang #2 18.95 41,932 1170 21.45 Erlang 86.89 40,612 1045 175.84 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 Erlang #3 5,904.10 556,024 945 6,158.16 Erlang 5,894.88 4,485,776 944 6,183.90 reverse-complement source secs mem gz cpu secs 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 Erlang 1,799.36 1,801,408 1309 2,028.27 Erlang #4 Timed Out Erlang #3 Timed Out 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 Java #7 2.57 1,728,452 841 8.00 Erlang 10.86 469,136 426 11.07 Erlang #2 5.02 465,116 485 14.02 Erlang Erlang/OTP 26 [erts-14.2.2] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit:ns] Java java 22 2024-03-19 Java HotSpot(TM) 64-Bit Server VM (build 22+36-2370, mixed mode, sharing) all Erlang programs & measurements all Java programs & measurements