Go 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. regex-redux source secs mem gz busy cpu load Go 7.21 326,552 810 10.19 22% 18% 87% 14% Java 10.27 635,500 740 29.42 74% 81% 55% 76% mandelbrot source secs mem gz busy cpu load Go 5.55 30,300 894 22.11 99% 99% 99% 100% Java 6.84 76,008 796 26.90 99% 98% 98% 98% fannkuch-redux source secs mem gz busy cpu load Go 14.93 3,484 969 59.67 100% 100% 100% 100% Java 16.12 33,168 1282 63.71 100% 98% 99% 98% fasta source secs mem gz busy cpu load Go 2.11 4,228 1358 5.66 69% 65% 64% 70% Java 2.22 43,096 2473 6.10 67% 83% 45% 80% n-body source secs mem gz busy cpu load Go 21.26 1,888 1310 22.28 3% 0% 100% 2% Java 21.85 34,112 1489 22.16 1% 0% 0% 100% spectral-norm source secs mem gz busy cpu load Go 4.12 2,704 548 15.93 96% 98% 97% 96% Java 4.15 36,428 950 16.26 98% 100% 98% 97% pidigits source secs mem gz busy cpu load Go 2.04 8,724 603 2.36 20% 32% 33% 31% Java 1.83 34,848 764 1.95 99% 1% 4% 2% reverse-complement source secs mem gz busy cpu load Go 3.73 826,488 611 4.10 88% 6% 2% 14% Java 3.27 714,144 2183 7.54 47% 60% 66% 58% k-nucleotide source secs mem gz busy cpu load Go 12.67 150,584 1722 47.44 95% 90% 93% 96% Java 9.14 403,576 1812 29.10 87% 72% 74% 86% binary-trees source secs mem gz busy cpu load Go 25.19 397,116 1007 86.01 88% 86% 84% 83% Java 8.28 948,040 835 28.20 80% 84% 87% 90% Go go version go1.14 linux/amd64 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 Go programs & measurements all Java programs & measurements