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| author | Mark Pulford <mark@kyne.com.au> | 2011-05-04 23:48:54 +0930 |
|---|---|---|
| committer | Mark Pulford <mark@kyne.com.au> | 2011-05-04 23:48:54 +0930 |
| commit | 79363daeb78485d61ad6ff24600408e4b855308c (patch) | |
| tree | 916ae622e2e2781f760d7aa718e102be12277e96 /performance.txt | |
| parent | 6f1f110cce95f6d73454701bb5641e8edabbb1fb (diff) | |
| download | lua-cjson-79363daeb78485d61ad6ff24600408e4b855308c.tar.gz lua-cjson-79363daeb78485d61ad6ff24600408e4b855308c.tar.bz2 lua-cjson-79363daeb78485d61ad6ff24600408e4b855308c.zip | |
Add benchmark results (performance.txt)
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| -rw-r--r-- | performance.txt | 42 |
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diff --git a/performance.txt b/performance.txt new file mode 100644 index 0000000..788eb9e --- /dev/null +++ b/performance.txt | |||
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| 1 | Performance comparison | ||
| 2 | ---------------------- | ||
| 3 | |||
| 4 | Here is a rough performance comparision of several JSON packages | ||
| 5 | available for Lua: | ||
| 6 | |||
| 7 | - DKJSON 1.0: One of the fastest pure Lua JSON implementations. | ||
| 8 | - LuaJSON 1.0: A mixed Lua/C JSON implementation using LPeg. | ||
| 9 | - CSJON 1.0: Pure C. | ||
| 10 | |||
| 11 | The example JSON files used were taken from http://json.org/ and | ||
| 12 | RFC 4627. | ||
| 13 | |||
| 14 | === DKJSON === == LuaJSON === === CJSON ==== | ||
| 15 | == Decoding == Lua LuaJIT Lua LuaJIT Lua LuaJIT | ||
| 16 | example1.json 1.0x 1.9x 3.4x 3.9x 12.3x 13.7x | ||
| 17 | example2.json 1.0x 2.0x 3.6x 4.6x 12.2x 20.0x | ||
| 18 | example3.json 1.0x 2.0x 3.9x 4.7x 13.1x 18.8x | ||
| 19 | example4.json 1.0x 1.8x 3.7x 4.4x 11.9x 17.0x | ||
| 20 | example5.json 1.0x 1.5x 4.0x 4.8x 14.6x 22.2x | ||
| 21 | rfc-example1.json 1.0x 1.5x 3.2x 4.3x 11.7x 16.9x | ||
| 22 | rfc-example2.json 1.0x 1.5x 3.7x 4.5x 10.3x 19.4x | ||
| 23 | == Average ==> 1.0x 1.7x 3.5x 4.2x 11.3x 16.5x | ||
| 24 | |||
| 25 | == Encoding == | ||
| 26 | example1.json 1.0x 1.8x 0.6x 1.4x 23.5x 23.4x | ||
| 27 | example2.json 1.0x 2.0x 0.5x 1.2x 22.4x 22.4x | ||
| 28 | example3.json 1.0x 1.8x 0.6x 1.3x 10.8x 13.4x | ||
| 29 | example4.json 1.0x 1.2x 0.7x 1.5x 15.7x 17.2x | ||
| 30 | example5.json 1.0x 1.5x 0.6x 1.4x 22.1x 20.4x | ||
| 31 | rfc-example1.json 1.0x 1.4x 0.5x 1.1x 8.9x 9.2x | ||
| 32 | rfc-example2.json 1.0x 1.4x 0.6x 1.3x 10.4x 10.9x | ||
| 33 | == Average ==> 1.0x 1.6x 0.6x 1.3x 17.0x 17.2x | ||
| 34 | |||
| 35 | |||
| 36 | CJSON spends a significant amount of time calling sprintf() to convert | ||
| 37 | doubles to strings while encoding "rfc-example1.json". Hence it only | ||
| 38 | shows a 9x improvement in this case. | ||
| 39 | |||
| 40 | The performance gains available can vary widely. If performance is | ||
| 41 | critical, I would recommend testing in a relevant environment with | ||
| 42 | your intended data. | ||