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author | Mark Pulford <mark@kyne.com.au> | 2011-05-04 23:48:54 +0930 |
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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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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. | ||