Ruby programs versus Python 3 by benchmark task performance binary-trees source secs mem gz cpu cpu load Ruby 47.66 511,724 1083 137.38 66% 90% 70% 63% Python 3 93.55 280,624 589 337.74 92% 89% 87% 93% spectral-norm source secs mem gz cpu cpu load Ruby 119.33 49,312 835 461.61 97% 97% 97% 97% Python 3 180.97 15,876 443 720.51 100% 100% 100% 100% n-body source secs mem gz cpu cpu load Ruby 641.41 8,848 1137 641.26 8% 93% 0% 0% Python 3 838.39 10,324 1196 838.20 95% 1% 5% 0% pidigits source secs mem gz cpu cpu load Ruby 2.97 306,652 485 2.96 1% 0% 3% 100% Python 3 3.43 12,716 386 3.43 100% 1% 1% 0% fannkuch-redux source secs mem gz cpu cpu load Ruby 671.17 30,416 1432 2,613.66 98% 100% 100% 92% Python 3 565.97 15,528 950 2,172.63 95% 94% 95% 100% k-nucleotide source secs mem gz cpu cpu load Ruby 95.27 381,212 858 342.07 97% 86% 86% 91% Python 3 77.65 182,700 1967 302.86 97% 99% 97% 98% fasta source secs mem gz cpu cpu load Ruby 99.67 106,544 1002 99.65 0% 0% 100% 0% Python 3 59.47 15,996 1947 138.97 55% 55% 63% 66% regex-redux source secs mem gz cpu cpu load Ruby 25.64 311,964 431 25.63 6% 4% 60% 31% Python 3 15.22 447,324 512 27.44 25% 33% 32% 91% reverse-complement source secs mem gz cpu cpu load Ruby 32.71 497,404 264 32.69 100% 1% 1% 0% Python 3 18.79 1,008,868 814 19.73 9% 69% 35% 30% mandelbrot source secs mem gz cpu cpu load Ruby 520.83 127,152 925 2,081.07 100% 100% 100% 100% Python 3 225.24 15,736 688 899.25 100% 100% 100% 100% Ruby ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-linux] Python 3 Python 3.6.3 vs JRuby vs PHP vs Python