Step 1 : Are the Perl 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 Perl program used compared to the fastest Java 6 -server program.
Step 2 : Are the Perl 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 Perl program used compared to the fastest Java 6 -server program.
| Perl used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | Reduced N |
| regex-dna | ± | 1/4 | 1/2 | |
| pidigits | ± | 1/9 | 1/5 | |
| reverse-complement | 2× | 1/4 | 1/2 | |
| k-nucleotide | 6× | 4× | 1/2 | |
| fasta | 45× | 1/6 | ± | |
| fannkuch | 58× | 1/2 | 1/2 | |
| binary-trees | 67× | 2× | ± | |
| spectral-norm | 74× | 1/2 | ± | |
| n-body | 76× | 1/6 | ± | |
| mandelbrot | 131× | 6× | 1/2 | |
± read the measurements and then read the program source code.
Step 3 : Are the Perl 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 Perl program are shown for comparison against measurements of the fastest Java 6 -server program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ~ CPU Load |
|---|---|---|---|---|---|
| regex-dna | |||||
| Perl | 39.07 | 14.23 | 153,584 | 527 | 55% 66% 58% 96% |
| Java 6 -server | 30.64 | 12.27 | 665,900 | 929 | 51% 54% 71% 74% |
| pidigits | |||||
| Perl | 7.03 | 7.03 | 3,284 | 385 | 0% 0% 0% 100% |
| Java 6 -server | 12.95 | 5.00 | 28,624 | 1816 | 61% 59% 57% 55% |
| reverse-complement | |||||
| Perl | 5.78 | 5.79 | 124,036 | 237 | 0% 0% 0% 100% |
| Java 6 -server | 2.98 | 2.94 | 473,712 | 592 | 1% 94% 4% 2% |
| k-nucleotide | |||||
| Perl | 281.57 | 88.72 | 2,774,904 | 648 | 78% 73% 88% 83% |
| Java 6 -server | 47.53 | 14.24 | 762,548 | 1602 | 80% 80% 95% 79% |
| fasta | |||||
| Perl | 339.78 | 339.76 | 2,112 | 934 | 100% 0% 0% 0% |
| Java 6 -server | 7.50 | 7.49 | 12,648 | 1240 | 0% 1% 99% 0% |
| fannkuch | |||||
| Perl | 4,206.05 | 1,062.52 | 6,020 | 471 | 99% 99% 99% 100% |
| Java 6 -server | 66.26 | 18.43 | 13,776 | 1150 | 78% 77% 98% 99% |
| binary-trees | |||||
| Perl | 1,292.44 | 1,292.38 | 643,488 | 541 | 0% 0% 100% 0% |
| Java 6 -server | 29.63 | 19.18 | 289,920 | 603 | 24% 75% 27% 28% |
| spectral-norm | |||||
| Perl | 1,212.30 | 304.61 | 7,792 | 846 | 100% 100% 99% 100% |
| Java 6 -server | 15.95 | 4.11 | 12,552 | 950 | 97% 97% 98% 97% |
| n-body | |||||
| Perl | 1,914.13 | 1,914.02 | 2,128 | 1140 | 0% 0% 0% 100% |
| Java 6 -server | 25.03 | 25.03 | 12,408 | 1424 | 100% 0% 0% 0% |
| mandelbrot | |||||
| Perl | 5,578.83 | 1,436.69 | 291,628 | 550 | 97% 97% 97% 97% |
| Java 6 -server | 43.12 | 10.95 | 48,920 | 903 | 98% 98% 99% 98% |
| chameneos-redux | |||||
Measurements for all the accepted programs
Perl : server-side shell & cgi scripts
This is perl, v5.10.0 built for i486-linux-gnu-thread-multi
Home Page: http://www.perl.org/
Download: http://www.cpan.org/src/5.0/