Python 3 programs versus Java by benchmark task performance pidigits source secs mem gz cpu cpu load Python 3 3.43 12,716 386 3.43 100% 1% 1% 0% Java 3.13 36,984 938 3.36 4% 4% 99% 3% regex-redux source secs mem gz cpu cpu load Python 3 15.22 447,324 512 27.44 25% 33% 32% 91% Java 10.51 573,972 929 31.30 70% 73% 70% 86% reverse-complement source secs mem gz cpu cpu load Python 3 18.79 1,008,868 814 19.73 9% 69% 35% 30% Java 3.15 680,424 2183 7.07 52% 70% 43% 63% k-nucleotide source secs mem gz cpu cpu load Python 3 77.65 182,700 1967 302.86 97% 99% 97% 98% Java 8.75 385,056 1812 27.09 85% 72% 70% 85% binary-trees source secs mem gz cpu cpu load Python 3 93.55 280,624 589 337.74 92% 89% 87% 93% Java 8.39 933,808 835 28.28 82% 86% 84% 88% fasta source secs mem gz cpu cpu load Python 3 59.47 15,996 1947 138.97 55% 55% 63% 66% Java 2.27 43,628 2473 5.93 51% 75% 57% 81% fannkuch-redux source secs mem gz cpu cpu load Python 3 565.97 15,528 950 2,172.63 95% 94% 95% 100% Java 18.27 31,820 1282 72.06 99% 99% 98% 98% mandelbrot source secs mem gz cpu cpu load Python 3 225.24 15,736 688 899.25 100% 100% 100% 100% Java 6.10 76,520 796 23.59 97% 98% 98% 96% n-body source secs mem gz cpu cpu load Python 3 838.39 10,324 1196 838.20 95% 1% 5% 0% Java 22.17 33,040 1489 22.27 100% 1% 0% 1% spectral-norm source secs mem gz cpu cpu load Python 3 180.97 15,876 443 720.51 100% 100% 100% 100% Java 4.38 35,388 950 16.80 96% 96% 95% 97% Python 3 Python 3.6.3 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