Julia versus Python 3 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. mandelbrot source secs mem gz busy cpu load Julia 2.64 224,160 619 9.34 86% 98% 85% 85% Python 3 263.87 48,268 688 1,054.07 100% 100% 100% 100% n-body source secs mem gz busy cpu load Julia 9.57 240,732 1112 10.20 2% 70% 32% 3% Python 3 891.12 8,416 1196 924.03 1% 53% 47% 2% spectral-norm source secs mem gz busy cpu load Julia 2.79 179,764 521 9.07 75% 75% 76% 99% Python 3 170.10 49,484 417 670.83 99% 98% 98% 99% fannkuch-redux source secs mem gz busy cpu load Julia 10.62 190,312 886 39.95 93% 92% 99% 93% Python 3 494.58 47,432 950 1,956.79 98% 99% 98% 100% fasta source secs mem gz busy cpu load Julia 2.93 363,468 1182 8.91 74% 79% 78% 73% Python 3 63.63 841,056 1947 127.80 58% 61% 44% 37% k-nucleotide source secs mem gz busy cpu load Julia 7.55 344,020 945 17.36 61% 41% 50% 78% Python 3 72.58 183,484 1967 276.33 95% 95% 94% 97% reverse-complement source secs mem gz busy cpu load Julia 3.03 671,492 522 3.54 5% 8% 6% 98% Python 3 16.41 1,772,696 434 17.57 1% 78% 28% 0% binary-trees source secs mem gz busy cpu load Julia 20.21 601,980 372 66.53 90% 78% 82% 79% Python 3 80.82 448,104 589 288.23 91% 88% 91% 86% pidigits source secs mem gz busy cpu load Julia 2.06 169,012 506 2.55 99% 6% 13% 6% Python 3 2.39 12,200 567 2.55 64% 37% 5% 1% regex-redux source secs mem gz busy cpu load Julia 3.04 439,520 766 5.17 4% 62% 5% 98% Python 3 2.67 111,864 1403 4.86 87% 30% 29% 35% Julia julia version 1.4.0 Python 3 Python 3.8.0 all Julia programs & measurements all Python 3 programs & measurements