Racket 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. spectral-norm source secs mem gz busy cpu load Racket 6.25 38,976 627 23.69 94% 94% 97% 94% Python 3 170.10 49,484 417 670.83 99% 98% 98% 99% n-body source secs mem gz busy cpu load Racket 53.89 36,784 1689 56.81 35% 1% 5% 65% Python 3 891.12 8,416 1196 924.03 1% 53% 47% 2% mandelbrot source secs mem gz busy cpu load Racket 19.92 128,228 801 75.95 95% 96% 95% 96% Python 3 263.87 48,268 688 1,054.07 100% 100% 100% 100% fannkuch-redux source secs mem gz busy cpu load Racket 83.41 35,220 1101 326.64 100% 99% 94% 99% Python 3 494.58 47,432 950 1,956.79 98% 99% 98% 100% binary-trees source secs mem gz busy cpu load Racket 16.20 980,880 853 45.85 57% 75% 75% 76% Python 3 80.82 448,104 589 288.23 91% 88% 91% 86% fasta source secs mem gz busy cpu load Racket 19.46 36,716 1280 21.43 93% 7% 2% 8% Python 3 63.63 841,056 1947 127.80 58% 61% 44% 37% pidigits source secs mem gz busy cpu load Racket 2.27 36,624 1136 2.30 100% 0% 1% 0% Python 3 2.39 12,200 567 2.55 64% 37% 5% 1% reverse-complement source secs mem gz busy cpu load Racket 17.41 568,032 1030 22.12 15% 3% 100% 9% Python 3 16.41 1,772,696 434 17.57 1% 78% 28% 0% k-nucleotide source secs mem gz busy cpu load Racket 100.10 417,588 885 105.50 3% 1% 4% 97% Python 3 72.58 183,484 1967 276.33 95% 95% 94% 97% regex-redux source secs mem gz busy cpu load Racket 26.20 1,242,924 729 57.35 65% 51% 17% 86% Python 3 2.67 111,864 1403 4.86 87% 30% 29% 35% Racket Welcome to Racket v7.7. Python 3 Python 3.8.0 all Racket programs & measurements all Python 3 programs & measurements