Step 1 : Are the Scheme PLT programs faster? At a glance.
This chart shows 3 comparisons - Time-used, Memory-used and Code-used.
Each chart bar shows, for one unidentified benchmark, how much the fastest Scheme PLT program used compared to the fastest Perl program.
Step 2 : Are the Scheme PLT programs faster? Approximately.
This table shows 3 comparisons - Time-used, Memory-used and Code-used.
Each table row shows, for one named benchmark, how much the fastest Scheme PLT program used compared to the fastest Perl program.
| Scheme PLT used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | Reduced N |
| binary-trees | 1/18 | 1/3 | ± | |
| n-body | 1/7 | 5× | ± | |
| mandelbrot | 1/6 | 3× | 2× | |
| fannkuch | 1/6 | 5× | ± | |
| fasta | 1/5 | 4× | ± | |
| spectral-norm | 1/4 | ± | 1/2 | |
| pidigits | ± | 4× | 3× | |
| regex-dna | ± | 4× | 2× | |
| k-nucleotide | ± | 2× | 2× | |
| reverse-complement | 3× | 3× | 2× | |
± read the measurements and then read the program source code.
Step 3 : Are the Scheme PLT programs faster? Measurements.
This table shows 5 measurements - CPU Time, Elapsed Time, Memory, Code and ~ CPU Load.
For each named benchmark, measurements of the fastest Scheme PLT program are shown for comparison against measurements of the fastest Perl program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ~ CPU Load |
|---|---|---|---|---|---|
| binary-trees | |||||
| Scheme PLT | 71.76 | 71.76 | 248,520 | 503 | 0% 0% 0% 100% |
| Perl | 1,297.73 | 1,297.68 | 643,488 | 541 | 0% 0% 0% 100% |
| n-body | |||||
| Scheme PLT | 280.05 | 280.03 | 9,812 | 1558 | 0% 0% 0% 100% |
| Perl | 1,911.92 | 1,911.80 | 2,128 | 1140 | 0% 0% 0% 100% |
| mandelbrot | |||||
| Scheme PLT | 841.10 | 841.05 | 8,572 | 508 | 0% 0% 0% 100% |
| Perl | 5,268.13 | 5,267.81 | 3,032 | 311 | 0% 0% 0% 100% |
| fannkuch | |||||
| Scheme PLT | 543.54 | 543.51 | 9,172 | 549 | 0% 0% 0% 100% |
| Perl | 3,160.50 | 3,160.31 | 1,692 | 391 | 0% 0% 0% 100% |
| fasta | |||||
| Scheme PLT | 64.00 | 64.00 | 7,784 | 1053 | 0% 0% 0% 100% |
| Perl | 349.59 | 349.57 | 2,112 | 934 | 0% 1% 0% 100% |
| spectral-norm | |||||
| Scheme PLT | 289.45 | 289.43 | 9,228 | 419 | 0% 0% 0% 100% |
| Perl | 1,184.33 | 1,184.26 | 7,792 | 846 | 0% 0% 0% 100% |
| pidigits | |||||
| Scheme PLT | 5.58 | 5.58 | 12,308 | 1131 | 0% 0% 0% 100% |
| Perl | 7.04 | 7.05 | 3,284 | 385 | 0% 0% 0% 100% |
| regex-dna | |||||
| Scheme PLT | 38.74 | 38.74 | 600,128 | 835 | 0% 0% 0% 100% |
| Perl | 38.84 | 38.84 | 153,472 | 527 | 0% 0% 0% 100% |
| k-nucleotide | |||||
| Scheme PLT | 307.62 | 307.82 | 1,294,916 | 623 | 0% 0% 0% 100% |
| Perl | 249.61 | 252.46 | 709,264 | 359 | 0% 0% 0% 100% |
| reverse-complement | |||||
| Scheme PLT | 20.26 | 20.26 | 383,808 | 554 | 0% 0% 0% 100% |
| Perl | 5.80 | 5.80 | 124,036 | 237 | 0% 0% 1% 100% |
| chameneos-redux | |||||
| Scheme PLT | 225.23 | 225.22 | 26,156 | 792 | 0% 0% 0% 100% |
Measurements for all the accepted programs
Scheme PLT : statically-scoped properly tail-recursive dialect of lisp
online book "The Scheme Programming Language, Fourth Edition" by R. Kent Dybvig, 2009.
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