The Computer Language
Benchmarks Game

Lisp SBCL versus Java fastest programs

Back in April 2010, Russ Cox charitably suggested that only fannkuch-redux, fasta, k-nucleotide, mandlebrot, nbody, reverse-complement and spectral-norm were close to fair comparisons. As someone who implemented programming languages, his interest was "measuring the quality of the generated code when both compilers are presented with what amounts to the same program."

Differences in approach - to memory management, parallel programming, regex, arbitrary precision arithmetic, implementation technique - don't fit in that kind-of fair comparison — but we still have to deal with them.

These are only the fastest programs. There may be additional measurements for programs which seem more-like a fair comparison to you. Always look at the source code.

fannkuch-redux
source secs mem gz busy cpu load
Lisp SBCL 15.42 32,896 1527 59.85 98% 92% 99% 100%
Java 17.93 34,616 1282 70.89 98% 100% 98% 99%
spectral-norm
source secs mem gz busy cpu load
Lisp SBCL 4.02 16,408 915 15.76 98% 98% 98% 98%
Java 4.20 36,636 950 16.37 97% 98% 97% 97%
n-body
source secs mem gz busy cpu load
Lisp SBCL 26.25 17,364 1403 26.74 0% 1% 1% 100%
Java 21.91 35,356 1429 22.28 100% 0% 0% 1%
mandelbrot
source secs mem gz busy cpu load
Lisp SBCL 8.83 49,916 2473 32.43 85% 99% 84% 100%
Java 6.90 78,956 796 27.14 99% 98% 98% 98%
binary-trees
source secs mem gz busy cpu load
Lisp SBCL 11.94 309,372 943 25.35 68% 48% 45% 51%
Java 8.29 966,764 835 27.76 86% 80% 86% 83%
k-nucleotide
source secs mem gz busy cpu load
Lisp SBCL 17.05 542,300 2479 61.39 89% 86% 87% 98%
Java 9.06 435,240 1812 28.35 98% 73% 72% 69%
fasta
source secs mem gz busy cpu load
Lisp SBCL 8.08 17,576 1757 8.18 1% 0% 0% 100%
Java 2.24 44,876 2473 6.13 18% 79% 79% 97%
reverse-complement
source secs mem gz busy cpu load
Lisp SBCL 11.89 1,403,692 904 12.25 0% 2% 2% 100%
Java 3.26 738,800 2183 7.49 44% 63% 73% 48%
pidigits
source secs mem gz busy cpu load
Lisp SBCL 12.28 129,808 493 12.44 100% 1% 1% 0%
Java 3.07 39,184 938 3.29 99% 3% 4% 1%
regex-redux
source secs mem gz busy cpu load
Lisp SBCL   Failed
Java 10.25 634,884 740 30.23 68% 95% 67% 65%
Lisp SBCL

SBCL 1.5.1

Java

openjdk 13 2019-09-17
OpenJDK Runtime Environment (build 13+33)
OpenJDK 64-Bit Server VM (build 13+33, mixed mode, sharing)