1 : Are the Clojure programs faster? At a glance.
Each chart bar shows, for one unidentified benchmark, how much the fastest Clojure program used compared to the fastest Java 7 program.
These are not the only compilers and interpreters. These are not the only programs that could be written. These are not the only tasks that could be solved. These are just 10 tiny examples.
2 : Are the Clojure programs faster? Approximately.
Each table row shows, for one named benchmark, how much the fastest Clojure program used compared to the fastest Java 7 program.
| Clojure used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | |
| spectral-norm | ± | 3× | 2× | |
| n-body | ± | 3× | 2× | |
| binary-trees | ± | ± | ± | |
| k-nucleotide | 2× | 2× | 2× | |
| fannkuch-redux | 2× | 3× | ± | |
| regex-dna | 2× | ± | 1/2 | |
| mandelbrot | 2× | ± | ± | |
| fasta | 2× | 3× | ± | |
| reverse-complement | 2× | ± | ± | |
| fasta-redux | 4× | 3× | ± | |
| pidigits | 4× | ± | 1/3 | |
| Clojure used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | ± | ± | 2× | 2× | 2× | 3× | 4× |
± read the measurements and then read the program source code.
3 : Are the Clojure programs faster? Measurements.
These are not the only tasks that could be solved. These are just 10 tiny examples. These are not the only compilers and interpreters. These are not the only programs that could be written.
For each named benchmark, measurements of the fastest Clojure program are shown for comparison against measurements of the fastest Java 7 program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| spectral-norm | |||||
| Clojure | 18.13 | 18.14 | 47,528 | 808 | 0% 0% 0% 100% |
| Java 7 | 17.00 | 17.00 | 18,320 | 514 | 0% 0% 0% 100% |
| n-body | |||||
| Clojure | 26.91 | 26.92 | 45,220 | 2162 | 0% 0% 0% 100% |
| Java 7 | 22.51 | 22.52 | 17,016 | 1424 | 0% 0% 0% 100% |
| binary-trees | |||||
| Clojure | 24.14 | 24.17 | 534,444 | 705 | 0% 0% 0% 100% |
| Java 7 | 16.37 | 16.42 | 499,404 | 603 | 0% 1% 0% 100% |
| k-nucleotide | |||||
| Clojure | 89.27 | 89.33 | 993,432 | 3030 | 0% 0% 0% 100% |
| Java 7 | 50.50 | 50.55 | 451,208 | 1602 | 0% 0% 0% 100% |
| fannkuch-redux | |||||
| Clojure | 132.60 | 132.69 | 53,624 | 1088 | 0% 0% 0% 100% |
| Java 7 | 70.18 | 70.20 | 17,168 | 1282 | 0% 0% 0% 100% |
| regex-dna | |||||
| Clojure | 45.71 | 45.78 | 564,756 | 710 | 0% 0% 0% 100% |
| Java 7 | 23.11 | 23.17 | 561,732 | 1284 | 0% 0% 0% 100% |
| mandelbrot | |||||
| Clojure | 51.92 | 51.94 | 90,200 | 1069 | 0% 0% 0% 100% |
| Java 7 | 23.79 | 23.80 | 69,816 | 796 | 0% 0% 0% 100% |
| fasta | |||||
| Clojure | 11.53 | 11.54 | 58,340 | 1839 | 0% 0% 0% 100% |
| Java 7 | 5.18 | 5.19 | 18,132 | 1507 | 0% 0% 0% 100% |
| reverse-complement | |||||
| Clojure | 4.29 | 4.30 | 360,020 | 1044 | 0% 0% 0% 100% |
| Java 7 | 1.79 | 1.83 | 514,504 | 745 | 0% 1% 0% 99% |
| fasta-redux | |||||
| Clojure | 9.53 | 9.54 | 55,308 | 1503 | 0% 0% 0% 100% |
| Java 7 | 2.55 | 2.56 | 17,264 | 1443 | 1% 1% 0% 100% |
| pidigits | |||||
| Clojure | 25.01 | 25.04 | 84,116 | 571 | 0% 0% 0% 100% |
| Java 7 | 5.90 | 5.91 | 63,344 | 1826 | 0% 0% 0% 100% |
4 : Are there other Clojure programs for these benchmarks?
Remember - those are just the fastest Clojure and Java 7 programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Clojure.
Maybe one of those other Clojure programs is fastest on a different OS/machine.
5 : Are there other faster programs for these benchmarks?
Remember - those are just the fastest Clojure and Java 7 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.
Clojure :
java version "1.7.0_11"
Java(TM) SE Runtime Environment (build 1.7.0_11-b21)
Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)
Clojure 1.5.0
Home Page: http://clojure.org/
Download: http://clojure.org/downloads