Step 1 : Are the Lisp SBCL programs faster? At a glance.
This chart shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.
Each chart bar shows, for one unidentified benchmark, how much the fastest Lisp SBCL program used compared to the fastest Java 7 -server program.
Look at speed another way - look at a box plot of Time-used data.
Step 2 : Are the Lisp SBCL programs faster? Approximately.
This table shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.
Each table row shows, for one named benchmark, how much the fastest Lisp SBCL program used compared to the fastest Java 7 -server program.
| Lisp SBCL used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | |
| pidigits | 1/3 | 1/9 | 1/2 | |
| fannkuch-redux | ± | ± | ± | |
| spectral-norm | ± | 1/3 | 2× | |
| n-body | ± | 2× | ± | |
| mandelbrot | ± | 1/2 | 3× | |
| k-nucleotide | ± | 1/4 | ± | |
| reverse-complement | ± | 1/2 | ± | |
| binary-trees | 2× | ± | ± | |
| regex-dna | 2× | 2× | 2× | |
| fasta | 2× | ± | ± | |
| fasta-redux | 2× | 1/2 | ± | |
| Lisp SBCL used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | 1/3 | 1/3 | ± | ± | 2× | 2× | 2× |
± read the measurements and then read the program source code.
Step 3 : Are the Lisp SBCL programs faster? Measurements.
This table shows 5 measurements - CPU Time, Elapsed Time, Memory, Code and ≈ CPU Load ~ speed and size.
For each named benchmark, measurements of the fastest Lisp SBCL program are shown for comparison against measurements of the fastest Java 7 -server program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| pidigits | |||||
| Lisp SBCL | 2.33 | 2.34 | 5,808 | 1073 | 0% 0% 3% 100% |
| Java 7 -server | 6.00 | 6.01 | 53,768 | 1826 | 1% 0% 0% 100% |
| fannkuch-redux | |||||
| Lisp SBCL | 53.88 | 53.90 | 22,180 | 1518 | 0% 0% 0% 100% |
| Java 7 -server | 69.96 | 69.99 | 17,020 | 1282 | 0% 0% 0% 100% |
| spectral-norm | |||||
| Lisp SBCL | 15.72 | 15.72 | 5,932 | 906 | 0% 0% 0% 100% |
| Java 7 -server | 16.99 | 17.00 | 18,244 | 514 | 0% 0% 0% 100% |
| n-body | |||||
| Lisp SBCL | 23.80 | 23.81 | 31,668 | 1398 | 0% 1% 1% 100% |
| Java 7 -server | 22.51 | 22.51 | 16,940 | 1424 | 0% 0% 0% 100% |
| mandelbrot | |||||
| Lisp SBCL | 28.51 | 28.52 | 36,148 | 2459 | 0% 0% 0% 100% |
| Java 7 -server | 23.74 | 23.75 | 69,696 | 796 | 0% 0% 0% 100% |
| k-nucleotide | |||||
| Lisp SBCL | 37.45 | 37.49 | 138,688 | 2301 | 0% 0% 0% 100% |
| Java 7 -server | 29.02 | 29.10 | 521,820 | 2431 | 0% 0% 0% 100% |
| reverse-complement | |||||
| Lisp SBCL | 2.51 | 2.53 | 312,864 | 896 | 0% 1% 0% 100% |
| Java 7 -server | 1.79 | 1.83 | 514,512 | 745 | 2% 1% 2% 100% |
| binary-trees | |||||
| Lisp SBCL | 26.35 | 26.41 | 457,372 | 649 | 0% 0% 0% 100% |
| Java 7 -server | 16.44 | 16.48 | 499,416 | 603 | 0% 0% 0% 100% |
| regex-dna | |||||
| Lisp SBCL | 4.44 | 4.45 | 109,744 | 1948 | 0% 0% 0% 100% |
| Java 7 -server | 2.65 | 2.66 | 55,816 | 1284 | 1% 0% 0% 100% |
| fasta | |||||
| Lisp SBCL | 10.00 | 10.00 | 18,968 | 1579 | 0% 0% 0% 100% |
| Java 7 -server | 5.18 | 5.19 | 18,044 | 1507 | 1% 0% 1% 100% |
| fasta-redux | |||||
| Lisp SBCL | 5.73 | 5.73 | 7,084 | 2005 | 0% 0% 0% 100% |
| Java 7 -server | 2.54 | 2.54 | 17,244 | 1443 | 1% 0% 0% 100% |
Step 4 : Are there other Lisp SBCL programs for these benchmarks?
Remember - those are just the fastest Lisp SBCL and Java 7 -server 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.
Step 5 : Are there other faster programs for these benchmarks?
Remember - those are just the fastest Lisp SBCL and Java 7 -server 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 1.0.54, an implementation of ANSI Common Lisp.
Home Page: http://sbcl.sourceforge.net/
Download: http://sbcl.sourceforge.net/