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 | |
| pidigits | 1/2 | 1/3 | 1/3 | |
| reverse-complement | ± | 1/4 | ± | |
| spectral-norm | ± | 1/14 | ± | |
| n-body | ± | 1/8 | ± | |
| binary-trees | ± | 1/3 | ± | |
| regex-dna | ± | 1/2 | ± | |
| fasta | ± | 1/7 | ± | |
| fannkuch-redux | 2× | 1/13 | ± | |
| mandelbrot | 2× | 1/2 | ± | |
| k-nucleotide | 3× | ± | ± | |
| Haskell GHC used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | 1/2 | 1/2 | ± | ± | 2× | 3× | 3× |
± 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 |
|---|---|---|---|---|---|
| pidigits | |||||
| Haskell GHC | 3.09 | 3.10 | 5,428 | 341 | 0% 1% 0% 100% |
| Java 7 -server | 5.44 | 5.44 | 16,944 | 938 | 0% 0% 0% 100% |
| reverse-complement | |||||
| Haskell GHC | 1.64 | 1.65 | 125,740 | 999 | 1% 1% 0% 100% |
| Java 7 -server | 1.87 | 1.90 | 511,340 | 745 | 1% 1% 0% 100% |
| spectral-norm | |||||
| Haskell GHC | 15.70 | 15.70 | 1,044 | 984 | 0% 0% 0% 100% |
| Java 7 -server | 16.21 | 16.21 | 14,860 | 950 | 0% 0% 0% 100% |
| n-body | |||||
| Haskell GHC | 26.04 | 26.05 | 1,832 | 1695 | 0% 0% 0% 100% |
| Java 7 -server | 24.32 | 24.33 | 13,744 | 1424 | 0% 0% 0% 100% |
| binary-trees | |||||
| Haskell GHC | 19.40 | 19.42 | 183,412 | 612 | 0% 0% 0% 100% |
| Java 7 -server | 15.64 | 15.68 | 506,672 | 603 | 0% 0% 0% 100% |
| regex-dna | |||||
| Haskell GHC | 28.07 | 28.10 | 246,920 | 1518 | 0% 0% 0% 100% |
| Java 7 -server | 21.58 | 21.61 | 557,612 | 1284 | 0% 0% 0% 100% |
| fasta | |||||
| Haskell GHC | 7.08 | 7.08 | 2,084 | 1421 | 0% 0% 0% 100% |
| Java 7 -server | 4.92 | 4.92 | 14,828 | 1507 | 1% 0% 0% 100% |
| fannkuch-redux | |||||
| Haskell GHC | 116.46 | 116.49 | 1,044 | 1153 | 0% 0% 0% 100% |
| Java 7 -server | 71.27 | 71.29 | 13,856 | 1282 | 0% 0% 0% 100% |
| mandelbrot | |||||
| Haskell GHC | 58.61 | 58.63 | 36,148 | 782 | 0% 0% 0% 100% |
| Java 7 -server | 26.86 | 26.87 | 67,760 | 796 | 0% 0% 0% 100% |
| k-nucleotide | |||||
| Haskell GHC | 84.92 | 85.02 | 365,576 | 2749 | 0% 0% 0% 100% |
| Java 7 -server | 33.81 | 33.93 | 336,388 | 2431 | 0% 0% 0% 100% |
| fasta-redux | |||||
| Java 7 -server | 0.11 | 0.11 | ? | 1443 | 0% 0% 0% 100% |
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
llvm version 2.9 (Ubuntu 2.9+dfsg-3ubuntu4)
The Glorious Glasgow Haskell Compilation System, version 7.4.1
Home Page: http://www.haskell.org/
Download: http://www.haskell.org/ghc/