1 : Are the Lisp SBCL programs faster? At a glance.
Each chart bar shows, for one unidentified benchmark, how much the fastest Lisp SBCL program used compared to the fastest Java 7 program.
These are not the only compilers and interpreters. These are not the only programs that could be written. These are not the only tasks that could be solved. These are just 10 tiny examples.
2 : Are the Lisp SBCL programs faster? Approximately.
Each table row shows, for one named benchmark, how much the fastest Lisp SBCL program used compared to the fastest Java 7 program.
| Lisp SBCL used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | |
| pidigits † | 1/2 | 1/10 | 1/2 | |
| fannkuch-redux | ± | ± | ± | |
| spectral-norm | ± | 1/3 | ± | |
| n-body | 2× | 1/3 | ± | |
| fasta | 2× | 1/2 | ± | |
| binary-trees † | 2× | 1/2 | 1/2 | |
| regex-dna | 2× | ± | 2× | |
| mandelbrot | 2× | 1/2 | 3× | |
| reverse-complement † | 3× | 1/2 | 1/2 | |
| fasta-redux | 5× | 1/2 | ± | |
| k-nucleotide † | 5× | 1/5 | ± | |
| Lisp SBCL used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | 1/2 | 1/2 | ± | 2× | 3× | 5× | 5× |
† possible mismatch - one-core program compared to multi-core program.
± read the measurements and then read the program source code.
3 : Are the Lisp SBCL programs faster? Measurements.
These are not the only tasks that could be solved. These are just 10 tiny examples. These are not the only compilers and interpreters. These are not the only programs that could be written.
For each named benchmark, measurements of the fastest Lisp SBCL program are shown for comparison against measurements of the fastest Java 7 program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| pidigits | |||||
| Lisp SBCL | 2.76 | 2.77 | 4,884 | 1073 | 1% 0% 0% 100% † |
| Java 7 | 11.75 | 5.12 | 46,488 | 1826 | 70% 67% 56% 39% † |
| fannkuch-redux | |||||
| Lisp SBCL | 57.30 | 14.77 | 14,112 | 1518 | 98% 99% 97% 94% |
| Java 7 | 67.91 | 17.17 | 14,460 | 1282 | 98% 99% 100% 100% |
| spectral-norm | |||||
| Lisp SBCL | 15.75 | 4.02 | 4,488 | 906 | 98% 98% 99% 98% |
| Java 7 | 16.39 | 4.21 | 14,740 | 950 | 97% 97% 98% 99% |
| n-body | |||||
| Lisp SBCL | 37.55 | 37.56 | 4,088 | 1398 | 0% 0% 0% 100% |
| Java 7 | 24.41 | 24.39 | 13,976 | 1424 | 0% 0% 0% 100% |
| fasta | |||||
| Lisp SBCL | 8.17 | 8.18 | 8,272 | 1751 | 0% 0% 0% 100% |
| Java 7 | 5.07 | 4.99 | 14,976 | 1507 | 2% 0% 100% 1% |
| binary-trees | |||||
| Lisp SBCL | 20.41 | 20.45 | 220,104 | 649 | 83% 0% 18% 0% † |
| Java 7 | 21.35 | 9.21 | 525,420 | 1007 | 50% 70% 48% 65% † |
| regex-dna | |||||
| Lisp SBCL | 46.12 | 22.59 | 946,444 | 1948 | 35% 42% 43% 86% |
| Java 7 | 27.09 | 9.43 | 708,060 | 929 | 65% 83% 78% 63% |
| mandelbrot | |||||
| Lisp SBCL | 67.13 | 16.95 | 35,300 | 2459 | 99% 99% 99% 99% |
| Java 7 | 27.14 | 6.90 | 67,612 | 796 | 98% 98% 99% 99% |
| reverse-complement | |||||
| Lisp SBCL | 4.78 | 4.79 | 164,812 | 896 | 0% 98% 2% 0% † |
| Java 7 | 2.93 | 1.52 | 294,784 | 1661 | 32% 59% 58% 47% † |
| fasta-redux | |||||
| Lisp SBCL | 9.24 | 9.25 | 9,356 | 2005 | 0% 1% 0% 100% |
| Java 7 | 1.90 | 1.85 | 14,500 | 1443 | 1% 2% 3% 100% |
| k-nucleotide | |||||
| Lisp SBCL | 69.14 | 69.22 | 105,244 | 2272 | 0% 0% 0% 100% † |
| Java 7 | 44.83 | 12.93 | 494,264 | 1602 | 84% 81% 85% 99% † |
† possible mismatch - one-core program compared to multi-core program.
4 : Are there other Lisp SBCL programs for these benchmarks?
Remember - those are just the fastest Lisp SBCL and Java 7 programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Lisp SBCL.
Maybe one of those other Lisp SBCL programs is fastest on a different OS/machine.
5 : Are there other faster programs for these benchmarks?
Remember - those are just the fastest Lisp SBCL and Java 7 programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.
Maybe one of those other programs is fastest on a different OS/machine.
Lisp SBCL : pioneering s-expression oriented programming
online book Practical Common Lisp
This is SBCL 1.1.7, an implementation of ANSI Common Lisp.
Home Page: http://sbcl.sourceforge.net/
Download: http://sbcl.sourceforge.net/