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 3.57 382,828 810 5.71 21% 42% 47% 51% Java 5.75 647,984 929 18.61 82% 88% 77% 77% fannkuch-redux source secs mem gz busy cpu load Go 8.51 2,732 969 34.00 100% 100% 100% 100% Java 10.61 34,960 1282 42.06 99% 99% 99% 98% reverse-complement source secs mem gz busy cpu load Go 1.38 1,465,376 1338 2.54 51% 47% 38% 50% Java 1.58 677,584 2183 3.76 55% 74% 48% 61% mandelbrot source secs mem gz busy cpu load Go 3.73 28,764 905 14.88 100% 99% 99% 100% Java 4.14 71,012 796 16.29 99% 99% 98% 98% spectral-norm source secs mem gz busy cpu load Go 1.43 2,668 548 5.70 99% 99% 99% 100% Java 1.57 39,376 756 5.94 96% 94% 95% 95% n-body source secs mem gz busy cpu load Go 6.34 1,792 1200 6.44 1% 100% 0% 0% Java 6.74 36,480 1489 6.84 100% 1% 0% 0% fasta source secs mem gz busy cpu load Go 1.20 11,452 1404 3.62 73% 70% 84% 74% Java 1.27 45,584 2473 3.91 82% 83% 73% 70% pidigits source secs mem gz busy cpu load Go 1.23 8,580 603 1.26 1% 50% 2% 50% Java 0.94 36,644 764 1.07 98% 5% 2% 9% k-nucleotide source secs mem gz busy cpu load Go 8.03 150,544 1722 30.53 97% 96% 95% 92% Java 4.57 485,000 1812 14.50 77% 74% 83% 82% binary-trees source secs mem gz busy cpu load Go 12.36 396,032 1007 43.05 88% 86% 89% 85% Java 2.48 2,496,112 835 7.88 78% 91% 74% 75% Go go version go1.14.4 linux/amd64 Java java 14.0.1 2020-04-14 Java(TM) SE Runtime Environment (build 14.0.1+7) Java HotSpot(TM) 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing) all Go programs & measurements all Java programs & measurements