5category: Text, Web, JSON
6copyright: Copyright 2011 MailRank, Inc.
7author: Bryan O'Sullivan <bos@mailrank.com>
8maintainer: Bryan O'Sullivan <bos@mailrank.com>
10tested-with: GHC == 6.12.3
11synopsis: Fast JSON parsing and encoding
13homepage: http://github.com/mailrank/aeson
14bug-reports: http://github.com/mailrank/aeson/issues
17 A JSON parsing and encoding library optimized for ease of use
20 /Note/: if you use GHCi or Template Haskell, please see the
21 @README@ file for important details about building this package,
22 and other packages that depend on it:
23 <https://github.com/mailrank/aeson#readme>
25 Parsing performance on a late 2010 MacBook Pro (2.66GHz Core i7),
26 for mostly-English tweets from Twitter's JSON search API:
28 * 0.8 KB, 32-bit GHC 6.12.3: 30538 msg\/sec (24.9 MB\/sec)
30 * 0.8 KB, 64-bit GHC 7.0.3: 31204 msg\/sec (25.4 MB\/sec)
32 * 6.4 KB, 32-bit GHC 6.12.3: 6731 msg\/sec (42.3 MB\/sec)
34 * 6.4 KB, 64-bit GHC 7.0.3: 6627 msg\/sec (41.7 MB\/sec)
36 * 11.8 KB, 32-bit GHC 6.12.3: 3751 msg\/sec (43.2 MB\/sec)
38 * 11.8 KB, 64-bit GHC 7.0.3: 3381 msg\/sec (38.9 MB\/sec)
40 * 31.2 KB, 32-bit GHC 6.12.3: 1306 msg\/sec (39.8 MB\/sec)
42 * 31.2 KB, 64-bit GHC 7.0.3: 1132 msg\/sec (34.5 MB\/sec)
44 * 61.5 KB, 32-bit GHC 6.12.3: 616 msg\/sec (37.0 MB\/sec)
46 * 61.5 KB, 64-bit GHC 7.0.3: 534 msg\/sec (32.1 MB\/sec)
48 Handling heavily-escaped text is a little more work. Here is
49 parsing performance with Japanese tweets, where much of the text
50 is entirely Unicode-escaped.
52 * 14.6 KB, 32-bit GHC 6.12.3: 2315 msg\/sec (33.1 MB\/sec)
54 * 14.6 KB, 64-bit GHC 7.0.3: 1986 msg\/sec (28.4 MB\/sec)
56 * 44.1 KB, 32-bit GHC 6.12.3: 712 msg\/sec (30.7 MB\/sec)
58 * 44.1 KB, 64-bit GHC 7.0.3: 634 msg\/sec (27.3 MB\/sec)
60 * 82.9 KB, 32-bit GHC 6.12.3: 377 msg\/sec (30.5 MB\/sec)
62 * 82.9 KB, 64-bit GHC 7.0.3: 332 msg\/sec (26.9 MB\/sec)
64 Encoding performance on the same machine and data:
66 * English, 854 bytes: 43439 msg\/sec (35.4 MB/sec)
68 * English, 6.4 KB: 7127 msg\/sec (44.8 MB/sec)
70 * Engish, 61.5 KB: 765 msg\/sec (46.0 MB/sec)
72 * Japanese, 14.6 KB: 4727 msg\/sec (67.5 MB/sec)
74 * Japanese, 44.1 KB: 1505 msg\/sec (64.8 MB/sec)
76 (A note on naming: in Greek mythology, Aeson was the father of Jason.)
80 benchmarks/AesonEncode.hs
81 benchmarks/AesonParse.hs
82 benchmarks/JsonParse.hs
84 benchmarks/ReadFile.hs
86 benchmarks/json-data/example.json
87 benchmarks/json-data/integers.json
88 benchmarks/json-data/jp10.json
89 benchmarks/json-data/jp50.json
90 benchmarks/json-data/jp100.json
91 benchmarks/json-data/numbers.json
92 benchmarks/json-data/twitter1.json
93 benchmarks/json-data/twitter10.json
94 benchmarks/json-data/twitter20.json
95 benchmarks/json-data/twitter50.json
96 benchmarks/json-data/twitter100.json
102 description: operate in developer mode
118 attoparsec >= 0.8.6.1,
120 blaze-builder >= 0.2.1.4,
121 blaze-textual >= 0.2.0.2,
130 template-haskell >= 2.5,
132 unordered-containers >= 0.1.3.0,
137 ghc-prof-options: -auto-all
139 if(impl(ghc >= 7.2.1))
140 cpp-options: -DDEFAULT_SIGNATURES
144source-repository head
146 location: http://github.com/mailrank/aeson
148source-repository head
150 location: http://bitbucket.org/bos/aeson
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