VW Smalltalk versus Java fastest programs Always look at the source code. These are only the fastest programs. Look at the other programs. They may seem more-like a fair comparison to you. binary-trees source secs mem gz busy cpu load VW Smalltalk 32.47 376,016 930 81.92 61% 89% 34% 68% Java 8.32 953,620 835 28.37 95% 87% 81% 77% pidigits source secs mem gz busy cpu load VW Smalltalk 15.24 55,612 753 15.31 0% 66% 34% 0% Java 3.07 39,320 938 3.31 2% 5% 3% 98% spectral-norm source secs mem gz busy cpu load VW Smalltalk 33.72 247,024 1047 111.66 81% 83% 83% 83% Java 4.22 36,948 950 16.43 98% 97% 98% 96% n-body source secs mem gz busy cpu load VW Smalltalk 196.18 55,120 1782 198.51 0% 100% 0% 1% Java 21.93 35,408 1429 22.44 1% 0% 100% 1% fasta source secs mem gz busy cpu load VW Smalltalk 48.48 55,160 1539 49.05 0% 16% 84% 1% Java 2.22 45,172 2473 5.99 61% 50% 98% 60% mandelbrot source secs mem gz busy cpu load VW Smalltalk 167.01 176,972 929 580.60 89% 96% 75% 88% Java 6.83 79,108 796 26.86 97% 99% 99% 99% fannkuch-redux source secs mem gz busy cpu load VW Smalltalk 714.19 55,084 916 722.32 33% 13% 55% 0% Java 14.33 34,888 1282 56.56 99% 98% 99% 98% k-nucleotide source secs mem gz busy cpu load VW Smalltalk 652.61 385,272 1317 658.10 90% 1% 0% 10% Java 9.33 447,976 1812 29.36 73% 83% 82% 77% reverse-complement source secs mem gz busy cpu load VW Smalltalk Bad Output Java 3.16 712,368 2183 7.08 65% 47% 42% 70% regex-redux source secs mem gz busy cpu load No program contribute your program Java 10.31 644,560 740 31.47 72% 72% 92% 70% VW Smalltalk VisualWorks® 8.3 Aug 19 2017 Java openjdk 13 2019-09-17 OpenJDK Runtime Environment (build 13+33) OpenJDK 64-Bit Server VM (build 13+33, mixed mode, sharing) all VW Smalltalk programs & measurements all Java programs & measurements