Free Pascal 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 Free Pascal 3.08 132,800 953 9.94 100% 73% 82% 68% Java 8.28 948,040 835 28.20 80% 84% 87% 90% pidigits source secs mem gz busy cpu load Free Pascal 1.73 2,324 530 1.77 0% 1% 1% 100% Java 1.83 34,848 764 1.95 99% 1% 4% 2% spectral-norm source secs mem gz busy cpu load Free Pascal 3.99 1,804 542 15.87 99% 100% 99% 100% Java 4.15 36,428 950 16.26 98% 100% 98% 97% n-body source secs mem gz busy cpu load Free Pascal 21.79 8 1325 21.99 100% 1% 0% 0% Java 21.85 34,112 1489 22.16 1% 0% 0% 100% fannkuch-redux source secs mem gz busy cpu load Free Pascal 17.33 1,880 1050 69.22 100% 100% 100% 100% Java 16.12 33,168 1282 63.71 100% 98% 99% 98% mandelbrot source secs mem gz busy cpu load Free Pascal 8.48 29,788 974 33.85 100% 100% 100% 100% Java 6.84 76,008 796 26.90 99% 98% 98% 98% reverse-complement source secs mem gz busy cpu load Free Pascal 6.84 495,112 771 6.94 70% 1% 1% 30% Java 3.27 714,144 2183 7.54 47% 60% 66% 58% fasta source secs mem gz busy cpu load Free Pascal 10.14 8 1220 10.29 13% 0% 0% 88% Java 2.22 43,096 2473 6.10 67% 83% 45% 80% regex-redux source secs mem gz busy cpu load Free Pascal Failed Java 10.27 635,500 740 29.42 74% 81% 55% 76% k-nucleotide source secs mem gz busy cpu load No program contribute your program Java 9.14 403,576 1812 29.10 87% 72% 74% 86% Free Pascal Free Pascal Compiler version 3.2.0 [2020/06/14] for x86_64 Java openjdk 14 2020-03-17 OpenJDK Runtime Environment (build 14+36-1461) OpenJDK 64-Bit Server VM (build 14+36-1461, mixed mode, sharing) all Free Pascal programs & measurements all Java programs & measurements