Lisp SBCL programs versus C++ g++ by benchmark task performance pidigits source secs mem gz cpu cpu load Lisp SBCL 1.78 20,912 940 1.78 1% 2% 1% 99% C++ g++ 1.88 4,276 513 1.88 0% 100% 1% 0% reverse-complement source secs mem gz cpu cpu load Lisp SBCL 0.04 ? 904 0.04 0% 25% 0% 100% C++ g++ 0.03 ? 2280 0.04 100% 25% 33% 75% fannkuch-redux source secs mem gz cpu cpu load Lisp SBCL 16.90 33,672 1527 65.55 100% 98% 91% 99% C++ g++ 10.61 2,044 980 41.90 100% 96% 100% 100% k-nucleotide source secs mem gz cpu cpu load Lisp SBCL 17.37 542,680 2479 63.34 88% 89% 100% 88% C++ g++ 7.75 165,180 1276 26.02 80% 96% 82% 79% spectral-norm source secs mem gz cpu cpu load Lisp SBCL 4.55 19,788 915 15.83 88% 86% 89% 87% C++ g++ 2.02 1,332 1044 7.91 99% 99% 99% 99% n-body source secs mem gz cpu cpu load Lisp SBCL 27.25 18,044 1403 27.24 100% 0% 1% 0% C++ g++ 8.23 1,856 1763 8.23 100% 1% 1% 0% binary-trees source secs mem gz cpu cpu load Lisp SBCL 11.63 311,372 943 24.25 77% 49% 47% 44% C++ g++ 2.55 135,568 809 7.99 85% 96% 69% 66% mandelbrot source secs mem gz cpu cpu load Lisp SBCL 7.74 50,540 2473 28.53 99% 85% 86% 100% C++ g++ 1.51 25,704 1791 5.99 99% 100% 100% 100% fasta source secs mem gz cpu cpu load Lisp SBCL 7.99 19,688 1757 7.99 33% 1% 1% 68% C++ g++ 1.35 1,952 2711 4.18 79% 78% 78% 79% regex-redux source secs mem gz cpu cpu load Lisp SBCL Failed C++ g++ 0.02 ? 1315 0.06 100% 50% 67% 100% Lisp SBCL SBCL 1.4.0 C++ g++ g++ (Ubuntu 7.2.0-8ubuntu3) 7.2.0 vs C++ vs Java