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Ubuntu : Intel® Q6600® one core |
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 JavaScript V8 program used compared to the fastest Java 7 -server program.
Look at speed another way - look at a box plot of Time-used data.
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 JavaScript V8 program used compared to the fastest Java 7 -server program.
| JavaScript V8 used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | |
| regex-dna | 1/6 | 1/3 | 1/3 | |
| fannkuch-redux | ± | 1/3 | 1/3 | |
| spectral-norm | 2× | 1/2 | 1/3 | |
| binary-trees | 3× | ± | ± | |
| n-body | 4× | ± | ± | |
| fasta | 4× | 2× | 1/2 | |
| k-nucleotide | 8× | ± | 1/6 | |
| reverse-complement | 9× | 1/2 | 1/2 | |
| pidigits | 51× | ± | 1/2 | |
| JavaScript V8 used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | 1/6 | 1/6 | 2× | 4× | 8× | 18× | 51× |
± read the measurements and then read the program source code.
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 JavaScript V8 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 |
|---|---|---|---|---|---|
| regex-dna | |||||
| JavaScript V8 | 4.19 | 4.20 | 202,952 | 373 | 0% 0% 0% 100% |
| Java 7 -server | 23.53 | 23.56 | 555,808 | 1284 | 0% 0% 0% 100% |
| fannkuch-redux | |||||
| JavaScript V8 | 80.52 | 80.55 | 4,756 | 472 | 0% 0% 0% 100% |
| Java 7 -server | 71.26 | 71.29 | 13,380 | 1282 | 0% 0% 0% 100% |
| spectral-norm | |||||
| JavaScript V8 | 33.13 | 33.15 | 6,884 | 311 | 0% 0% 0% 100% |
| Java 7 -server | 15.99 | 16.00 | 14,224 | 950 | 0% 0% 0% 100% |
| binary-trees | |||||
| JavaScript V8 | 38.79 | 38.83 | 393,256 | 467 | 0% 0% 0% 100% |
| Java 7 -server | 14.13 | 14.17 | 483,284 | 603 | 0% 0% 0% 100% |
| n-body | |||||
| JavaScript V8 | 85.86 | 85.92 | 13,024 | 1287 | 0% 0% 0% 100% |
| Java 7 -server | 24.22 | 24.23 | 13,596 | 1424 | 0% 0% 0% 100% |
| fasta | |||||
| JavaScript V8 | 19.89 | 19.90 | 32,736 | 923 | 0% 0% 1% 100% |
| Java 7 -server | 5.03 | 5.03 | 14,580 | 1507 | 1% 1% 0% 100% |
| k-nucleotide | |||||
| JavaScript V8 | 274.79 | 274.93 | 332,832 | 423 | 0% 0% 0% 100% |
| Java 7 -server | 33.02 | 33.10 | 436,776 | 2431 | 0% 0% 0% 100% |
| reverse-complement | |||||
| JavaScript V8 | 17.38 | 17.40 | 321,684 | 456 | 0% 0% 0% 100% |
| Java 7 -server | 1.88 | 1.90 | 510,948 | 745 | 0% 0% 2% 100% |
| pidigits | |||||
| JavaScript V8 | 277.87 | 278.07 | 24,088 | 609 | 0% 1% 0% 100% |
| Java 7 -server | 5.44 | 5.44 | 16,380 | 938 | 1% 0% 0% 100% |
| fasta-redux | |||||
| Java 7 -server | 0.11 | 0.12 | ? | 1443 | 27% 0% 0% 100% |
| mandelbrot | |||||
| JavaScript V8 | |||||
| Java 7 -server | 0.22 | 0.22 | 308 | 802 | 9% 0% 0% 100% |
Remember - those are just the fastest JavaScript V8 and Java 7 -server programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for JavaScript V8.
Maybe one of those other JavaScript V8 programs is fastest on a different OS/machine.
Remember - those are just the fastest JavaScript V8 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.
V8 version 3.9.5 [console: dumb]
Home Page: V8 JavaScript Engine