Step 1 : Are the Haskell GHC 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 Haskell GHC 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 Haskell GHC 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 Haskell GHC program used compared to the fastest Java 7 -server program.
| Haskell GHC used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | |
| mandelbrot | ± | ? | ± | |
| pidigits | ± | 1/11 | 1/5 | |
| spectral-norm | ± | 1/11 | ± | |
| regex-dna | ± | 1/4 | 2× | |
| fannkuch-redux | ± | 1/13 | ± | |
| reverse-complement | ± | 1/2 | 1/2 | |
| n-body | 2× | 1/7 | ± | |
| binary-trees | 2× | ± | 1/2 | |
| fasta | 2× | 1/8 | ± | |
| k-nucleotide | 6× | ± | ± | |
| Haskell GHC used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | ± | ± | ± | ± | 2× | 4× | 6× |
± read the measurements and then read the program source code.
Step 3 : Are the Haskell GHC 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 Haskell GHC 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 |
|---|---|---|---|---|---|
| mandelbrot | |||||
| Haskell GHC | 0.30 | 0.08 | ? | 782 | 100% 100% 88% 100% |
| Java 7 -server | 0.27 | 0.12 | ? | 802 | 55% 45% 92% 50% |
| pidigits | |||||
| Haskell GHC | 5.59 | 3.68 | 5,468 | 341 | 4% 98% 41% 10% |
| Java 7 -server | 9.33 | 3.86 | 61,488 | 1808 | 55% 54% 58% 56% |
| spectral-norm | |||||
| Haskell GHC | 21.79 | 5.62 | 1,520 | 984 | 97% 96% 99% 96% |
| Java 7 -server | 17.68 | 4.53 | 17,264 | 950 | 97% 97% 98% 98% |
| regex-dna | |||||
| Haskell GHC | 40.95 | 11.32 | 215,992 | 1518 | 86% 89% 100% 88% |
| Java 7 -server | 25.55 | 9.01 | 785,700 | 929 | 66% 76% 69% 75% |
| fannkuch-redux | |||||
| Haskell GHC | 70.98 | 19.05 | 1,296 | 1153 | 94% 100% 92% 88% |
| Java 7 -server | 53.27 | 13.50 | 17,056 | 1282 | 98% 99% 98% 100% |
| reverse-complement | |||||
| Haskell GHC | 2.20 | 1.80 | 126,056 | 999 | 98% 8% 6% 13% |
| Java 7 -server | 2.57 | 1.27 | 313,080 | 1661 | 45% 41% 33% 91% |
| n-body | |||||
| Haskell GHC | 39.44 | 36.58 | 2,312 | 1695 | 34% 28% 21% 26% |
| Java 7 -server | 22.51 | 22.49 | 16,784 | 1424 | 0% 0% 0% 100% |
| binary-trees | |||||
| Haskell GHC | 58.32 | 18.79 | 786,900 | 612 | 71% 77% 93% 71% |
| Java 7 -server | 18.01 | 8.55 | 534,924 | 1007 | 68% 92% 17% 36% |
| fasta | |||||
| Haskell GHC | 13.56 | 12.87 | 2,308 | 1421 | 18% 69% 17% 2% |
| Java 7 -server | 5.25 | 5.19 | 17,660 | 1507 | 0% 1% 2% 100% |
| k-nucleotide | |||||
| Haskell GHC | 129.56 | 50.68 | 307,872 | 2749 | 69% 54% 82% 57% |
| Java 7 -server | 29.91 | 8.17 | 458,476 | 2431 | 89% 91% 95% 93% |
| fasta-redux | |||||
| Java 7 -server | 0.13 | 0.11 | ? | 1443 | 11% 9% 18% 91% |
Step 4 : Are there other Haskell GHC programs for these benchmarks?
Remember - those are just the fastest Haskell GHC and Java 7 -server programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Haskell GHC.
Maybe one of those other Haskell GHC programs is fastest on a different OS/machine.
Step 5 : Are there other faster programs for these benchmarks?
Remember - those are just the fastest Haskell GHC 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.
Haskell GHC : lazy pure functional programming
The Glorious Glasgow Haskell Compilation System, version 7.4.1
Home Page: http://www.haskell.org/
Download: http://www.haskell.org/ghc/