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Benchmark
Disclaimer : this is a snapshot at a given time (2022-02-26). Results may differ depending data or machine used, as well projects updates can increase (or decrease) performances. Each project can provide the rare feature you are seeking. This is not a value judgment. Do your own benchmarks !
Below benchmark was done with Erlang/OTP 25.0-rc1 (non JIT) on a x86_64 GNU/Linux Laptop.
Encoding is as efficient, and often better, than other project not using C code. In particular, standard deviation is lower in most case.
2> jason_bench:encode(15000).
*** Encode (15000)
Range (mics) Median (mics) Average (mics) Data
[{<<"abc">>,
<<"def">>}]
jason 0 - 71 1 2
jiffy N/A
jsone 0 - 1763 1 1
jsx 1 - 3295 4 4
{[{<<"abc">>,
<<"def">>}]}
jason 0 - 148 1 1
jiffy 0 - 660 1 2
jsone 0 - 56 1 1
jsx N/A
[{abc,
<<"def">>}]
jason 0 - 49 1 1
jiffy N/A
jsone 0 - 121 1 1
jsx 1 - 40 4 4
[1,2,3,4,5]
jason 0 - 26 1 1
jiffy 0 - 565 2 2
jsone 0 - 66 1 1
jsx 1 - 44 4 4
["a","b","c",
"d"]
jason 0 - 45 1 1
jiffy 0 - 845 3 3
jsone 0 - 40 2 2
jsx 1 - 67 4 4
[1,1.2345,
<<"a">>]
jason 0 - 47 1 1
jiffy 0 - 558 2 3
jsone 0 - 50 3 3
jsx 1 - 149 4 5
#{<<"abc">> =>
<<"def">>}
jason 0 - 260 1 1
jiffy 0 - 427 2 2
jsone 0 - 52 1 1
jsx 1 - 33 4 4
[1,2.3,true,
false,null,
atom,
<<"string">>,
[]]
jason 1 - 46 4 4
jiffy 1 - 461 4 4
jsone 1 - 115 4 4
jsx 3 - 95 14 11
Decoding is slower in magnitude 1.5 (using option {binary, kv}) compared to projects not using C code, due to choice of using a two step approach, lexical analyzer (Leex) then LALR-1 parser (Yecc). However this permit powerful bottom up creation of record module helpers for deeply nested JSON structures.
3> jason_bench:decode(15000).
*** Decode (15000)
Range (mics) Median (mics) Average (mics) Data
<<"{\"abc\": \"def\"}">>
jason 1 - 290 4 5
jiffy 0 - 141 1 1
jsone 0 - 143 1 1
jsx 0 - 110 1 2
<<"[1, 2, 3, 4]">>
jason 1 - 113 3 3
jiffy 0 - 129 2 2
jsone 0 - 140 1 1
jsx 0 - 107 3 3
<<"[1, 2.345, \"abc\"]">>
jason 1 - 121 4 5
jiffy 0 - 196 2 2
jsone 0 - 116 1 1
jsx 1 - 102 4 4
<<"{\"abc\" : { \"def\" : [1, 2.345, \"abc\"]} }">>
jason 2 - 137 9 9
jiffy 1 - 169 4 4
jsone 0 - 123 3 3
jsx 2 - 69 4 5
File "ex1.json"
jason 20 - 124 29 30
jiffy 3 - 181 7 7
jsone 5 - 124 9 10
jsx 14 - 319 17 17
File "ex2.json"
jason 11 - 117 17 18
jiffy 2 - 174 4 5
jsone 3 - 119 6 8
jsx 7 - 62 10 11
File "ex3.json"
jason 28 - 91 34 37
jiffy 5 - 115 8 9
jsone 8 - 119 11 12
jsx 18 - 96 21 22
File "ex4.json"
jason 162 - 657 223 225
jiffy 20 - 82 23 27
jsone 42 - 413 54 54
jsx 108 - 1056 119 123
File "ex5.json"
jason 44 - 412 59 61
jiffy 9 - 59 12 13
jsone 12 - 213 17 17
jsx 25 - 184 37 34