Rust programs versus Java by benchmark task performance regex-redux source secs mem gz cpu cpu load Rust 3.02 189,036 804 4.40 87% 15% 17% 29% Java 10.51 573,972 929 31.30 70% 73% 70% 86% mandelbrot source secs mem gz cpu cpu load Rust 1.89 13,712 1007 7.51 100% 99% 100% 99% Java 6.10 76,520 796 23.59 97% 98% 98% 96% pidigits source secs mem gz cpu cpu load Rust 1.74 4,592 1366 1.74 1% 1% 3% 100% Java 3.13 36,984 938 3.36 4% 4% 99% 3% spectral-norm source secs mem gz cpu cpu load Rust 2.51 2,752 1053 9.20 91% 93% 95% 90% Java 4.38 35,388 950 16.80 96% 96% 95% 97% n-body source secs mem gz cpu cpu load Rust 13.24 1,704 1480 13.23 1% 1% 1% 100% Java 22.17 33,040 1489 22.27 100% 1% 0% 1% k-nucleotide source secs mem gz cpu cpu load Rust 5.53 140,784 1671 16.44 83% 51% 67% 99% Java 8.75 385,056 1812 27.09 85% 72% 70% 85% fannkuch-redux source secs mem gz cpu cpu load Rust 12.07 1,832 1191 47.32 99% 100% 95% 99% Java 18.27 31,820 1282 72.06 99% 99% 98% 98% binary-trees source secs mem gz cpu cpu load Rust 6.36 119,720 751 21.40 94% 77% 78% 90% Java 8.39 933,808 835 28.28 82% 86% 84% 88% reverse-complement source secs mem gz cpu cpu load Rust 3.29 1,044,220 1871 4.33 33% 20% 77% 26% Java 3.15 680,424 2183 7.07 52% 70% 43% 63% fasta source secs mem gz cpu cpu load Rust 3.84 2,904 1233 3.84 0% 0% 1% 100% Java 2.27 43,628 2473 5.93 51% 75% 57% 81% Rust rustc 1.25.0 (84203cac6 2018-03-25) Java java 10 2018-03-20 Java(TM) SE Runtime Environment 18.3 (build 10+46) Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode) vs C vs C++ vs Go vs Java