Rust versus C++ g++ fastest programs by faster benchmark performance reverse-complement source secs mem gz cpu cpu load Rust 1.62 994,780 1376 2.75 25% 25% 25% 99% C++ g++ 2.93 980,716 2280 4.52 51% 23% 33% 51% n-body source secs mem gz cpu cpu load Rust 5.82 916 1753 5.82 2% 3% 100% 1% C++ g++ 9.42 1,704 1763 9.41 2% 100% 1% 0% pidigits source secs mem gz cpu cpu load Rust 1.75 3,036 1366 1.75 100% 1% 1% 0% C++ g++ 1.89 4,380 513 1.88 2% 99% 4% 2% spectral-norm source secs mem gz cpu cpu load Rust 1.97 2,204 1126 7.86 99% 99% 100% 100% C++ g++ 1.98 1,164 1044 7.87 99% 99% 99% 100% fannkuch-redux source secs mem gz cpu cpu load Rust 10.13 916 1020 39.51 100% 100% 92% 100% C++ g++ 10.12 1,852 980 39.95 100% 100% 96% 100% fasta source secs mem gz cpu cpu load Rust 1.46 2,008 1906 4.56 77% 78% 78% 83% C++ g++ 1.33 1,740 2711 4.29 81% 81% 81% 82% binary-trees source secs mem gz cpu cpu load Rust 4.10 199,760 721 14.86 89% 90% 99% 88% C++ g++ 3.68 119,052 809 11.93 98% 76% 77% 78% mandelbrot source secs mem gz cpu cpu load Rust 1.74 32,472 1332 6.86 100% 98% 98% 98% C++ g++ 1.51 25,640 1791 5.99 100% 100% 99% 99% regex-redux source secs mem gz cpu cpu load Rust 2.44 199,876 765 3.87 27% 84% 49% 0% C++ g++ 1.83 203,520 1315 4.41 50% 45% 100% 49% k-nucleotide source secs mem gz cpu cpu load Rust 5.45 135,028 1648 17.24 87% 100% 57% 75% C++ g++ 3.73 156,080 1624 11.60 75% 70% 72% 96% Rust rustc 1.32.0 (9fda7c223 2019-01-16) LLVM version 8.0 C++ g++ g++ (Ubuntu 8.2.0-7ubuntu1) 8.2.0 all other Rust programs & measurements