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34 lines
1.3 KiB
Markdown
34 lines
1.3 KiB
Markdown
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# Benchmarks
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Some benchmarks, run on an ancient Thinkpad running Intel Core 2 Duo at 2GHz.
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|Implementation | Time (sec)| Factor |
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|-------------------|-----------:|--------:|
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| Markdown.pl | 2921.24 | 14606.2 |
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| PHP markdown | 20.85 | 104.3 |
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| kramdown | 20.83 | 104.1 |
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| lunamark | 6.295 | 31.5 |
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| cheapskate | 5.760 | 28.8 |
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| peg-markdown | 5.450 | 27.3 |
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| **commonmark.js** | 2.675 | 13.4 |
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| marked | 1.855 | 9.3 |
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| discount | 1.705 | 8.5 |
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| **cmark** | 0.295 | 1.5 |
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| sundown | 0.200 | 1.0 |
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To run these benchmarks, use `make bench PROG=/path/to/program`.
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The input text is a 10MB Markdown file built by concatenating 20 copies
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of the Markdown source of the first edition of [*Pro
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Git*](https://github.com/progit/progit/tree/master/en) by Scott Chacon.
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`time` is used to measure execution speed. The reported
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time is the *difference* between the time to run the program
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with the benchmark input and the time to run it with no input.
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(This procedure ensures that implementations in dynamic languages are
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not prenalized by startup time.) A median of ten runs is taken. The
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process is reniced to a high priority so that the system doesn't
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interrupt runs.
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