下面是评测性能时所用的各个包的版本情况，具体的测试代码，可参考benchmark_test ，欢迎友好交流。
| 库名 | version |
|---|---|
| StdLib | v1.19 |
| JsonIter | v1.1.13 |
| GoJson | v0.10.1 |
| Sonic | v1.8.3 |
为什么没有评测 GJson 库呢?
GJson 在单键查找的场景下有很大的优势。这是因为它的查找是通过 lazy-load 实现的，它巧妙地跳过了传递值，有效地减少了很多不必要的解析，但其实跳过也是一种轻量级解析，实际是在处理 json 控制字符“[”、“{”等；然而当涉及到多键查找时，Gjson 做的事比标准库更糟糕，这是其跳过机制的副作用：相同路径查找导致的重复开销。针对它的使用场景，单纯的评测定性编解码和泛型编解码，对 GJson 是不公平的。
型号名称： MacBook Pro
型号标识符： MacBookPro16,1
处理器名称： 六核Intel Core i7
处理器速度： 2.6 GHz
处理器数目： 1
核总数： 6
L2缓存（每个核）： 256 KB
L3缓存： 12 MB
超线程技术： 已启用
内存： 16 GB
- 小Small ：400B，11 key，深度 3 层；
- 中Medium：13KB，300+ key，深度 4层（实际业务数据，其中有大量的嵌套 JSON string)；
- 大Large：635KB，10000+ key，深度 6 层。
这里参考了 bytedance/sonic 库中压测方式
BenchmarkDecoder_Generic_StdLib-12 1000000 6986 ns/op 52.25 MB/s 3474 B/op 91 allocs/op
BenchmarkDecoder_Generic_JsonIter-12 1000000 7366 ns/op 49.55 MB/s 3748 B/op 112 allocs/op
BenchmarkDecoder_Generic_GoJson-12 1000000 6961 ns/op 52.43 MB/s 4279 B/op 105 allocs/op
BenchmarkDecoder_Generic_Sonic-12 1000000 4093 ns/op 89.17 MB/s 4567 B/op 42 allocs/op
BenchmarkDecoder_Generic_Sonic_V1-12 1000000 4474 ns/op 81.58 MB/s 4363 B/op 71 allocs/op
BenchmarkDecoder_Generic_Sonic_Fast-12 1000000 3927 ns/op 92.95 MB/s 4171 B/op 41 allocs/op
BenchmarkDecoder_Generic_Sonnet-12 1000000 4743 ns/op 76.95 MB/s 3330 B/op 80 allocs/op
BenchmarkDecoder_Parallel_Generic_StdLib-12 1000000 2387 ns/op 152.89 MB/s 3474 B/op 91 allocs/op
BenchmarkDecoder_Parallel_Generic_JsonIter-12 1000000 2411 ns/op 151.37 MB/s 3749 B/op 112 allocs/op
BenchmarkDecoder_Parallel_Generic_GoJson-12 1000000 2680 ns/op 136.20 MB/s 4283 B/op 105 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic-12 1000000 1641 ns/op 222.45 MB/s 4615 B/op 42 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_V1-12 1000000 1707 ns/op 213.82 MB/s 4383 B/op 71 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_Fast-12 1000000 1688 ns/op 216.22 MB/s 4190 B/op 41 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonnet-12 1000000 2154 ns/op 169.45 MB/s 3331 B/op 80 allocs/op
BenchmarkDecoder_Binding_StdLib-12 1000000 7369 ns/op 49.53 MB/s 1056 B/op 36 allocs/op
BenchmarkDecoder_Binding_JsonIter-12 1000000 2281 ns/op 160.01 MB/s 688 B/op 31 allocs/op
BenchmarkDecoder_Binding_GoJson-12 1000000 1786 ns/op 204.36 MB/s 939 B/op 19 allocs/op
BenchmarkDecoder_Binding_Sonic-12 1000000 1697 ns/op 215.14 MB/s 1797 B/op 8 allocs/op
BenchmarkDecoder_Binding_Sonic_V1-12 1000000 1720 ns/op 212.23 MB/s 1464 B/op 14 allocs/op
BenchmarkDecoder_Binding_Sonic_Fast-12 1000000 1616 ns/op 225.85 MB/s 1403 B/op 7 allocs/op
BenchmarkDecoder_Binding_Sonnet-12 1000000 4747 ns/op 76.89 MB/s 3330 B/op 80 allocs/op
BenchmarkDecoder_Parallel_Binding_StdLib-12 1000000 1835 ns/op 198.92 MB/s 1055 B/op 36 allocs/op
BenchmarkDecoder_Parallel_Binding_JsonIter-12 1000000 638.5 ns/op 571.62 MB/s 688 B/op 31 allocs/op
BenchmarkDecoder_Parallel_Binding_GoJson-12 1000000 640.7 ns/op 569.68 MB/s 942 B/op 19 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic-12 1000000 557.6 ns/op 654.64 MB/s 1868 B/op 8 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_V1-12 1000000 523.6 ns/op 697.05 MB/s 1496 B/op 14 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_Fast-12 1000000 504.4 ns/op 723.67 MB/s 1436 B/op 7 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonnet-12 1000000 718.4 ns/op 508.06 MB/s 751 B/op 17 allocs/op
BenchmarkEncoder_Generic_StdLib-12 1000000 10142 ns/op 35.99 MB/s 3273 B/op 67 allocs/op
BenchmarkEncoder_Generic_JsonIter-12 1000000 5373 ns/op 67.93 MB/s 1024 B/op 16 allocs/op
BenchmarkEncoder_Generic_GoJson-12 1000000 4903 ns/op 74.44 MB/s 961 B/op 2 allocs/op
BenchmarkEncoder_Generic_Sonic-12 1000000 2405 ns/op 151.76 MB/s 479 B/op 4 allocs/op
BenchmarkEncoder_Generic_Sonic_V1-12 1000000 2734 ns/op 133.49 MB/s 732 B/op 4 allocs/op
BenchmarkEncoder_Generic_Sonic_Fast-12 1000000 2329 ns/op 156.72 MB/s 469 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic-12 1000000 475.6 ns/op 767.50 MB/s 487 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_JsonIter-12 1000000 1248 ns/op 292.50 MB/s 1024 B/op 16 allocs/op
BenchmarkEncoder_Parallel_Generic_GoJson-12 1000000 1636 ns/op 223.16 MB/s 961 B/op 2 allocs/op
BenchmarkEncoder_Parallel_Generic_StdLib-12 1000000 3971 ns/op 91.92 MB/s 3273 B/op 67 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_V1-12 1000000 1003 ns/op 363.81 MB/s 760 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_Fast-12 1000000 537.9 ns/op 678.51 MB/s 492 B/op 4 allocs/op
BenchmarkEncoder_Binding_StdLib-12 1000000 2073 ns/op 176.07 MB/s 384 B/op 1 allocs/op
BenchmarkEncoder_Binding_JsonIter-12 1000000 2209 ns/op 165.26 MB/s 392 B/op 2 allocs/op
BenchmarkEncoder_Binding_GoJson-12 1000000 1172 ns/op 311.31 MB/s 384 B/op 1 allocs/op
BenchmarkEncoder_Binding_Sonic-12 1000000 842.2 ns/op 433.41 MB/s 492 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_V1-12 1000000 956.8 ns/op 381.50 MB/s 757 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_Fast-12 1000000 814.0 ns/op 448.41 MB/s 490 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_StdLib-12 1000000 452.7 ns/op 806.23 MB/s 384 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Binding_JsonIter-12 1000000 508.1 ns/op 718.34 MB/s 392 B/op 2 allocs/op
BenchmarkEncoder_Parallel_Binding_GoJson-12 1000000 331.9 ns/op 1099.89 MB/s 384 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic-12 1000000 184.7 ns/op 1976.14 MB/s 488 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_V1-12 1000000 238.7 ns/op 1529.08 MB/s 745 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_Fast-12 1000000 185.8 ns/op 1964.13 MB/s 496 B/op 4 allocs/op
BenchmarkDecoder_Generic_StdLib-12 100000 134048 ns/op 97.26 MB/s 50870 B/op 772 allocs/op
BenchmarkDecoder_Generic_JsonIter-12 100000 94131 ns/op 138.50 MB/s 55779 B/op 1068 allocs/op
BenchmarkDecoder_Generic_GoJson-12 100000 91549 ns/op 142.40 MB/s 66358 B/op 973 allocs/op
BenchmarkDecoder_Generic_Sonic-12 100000 57213 ns/op 227.87 MB/s 62757 B/op 314 allocs/op
BenchmarkDecoder_Generic_Sonic_V1-12 100000 67120 ns/op 194.23 MB/s 56800 B/op 723 allocs/op
BenchmarkDecoder_Generic_Sonic_Fast-12 100000 54601 ns/op 238.77 MB/s 49020 B/op 313 allocs/op
BenchmarkDecoder_Generic_Sonnet-12 100000 67423 ns/op 193.36 MB/s 50222 B/op 739 allocs/op
BenchmarkDecoder_Parallel_Generic_StdLib-12 100000 50068 ns/op 260.38 MB/s 50875 B/op 772 allocs/op
BenchmarkDecoder_Parallel_Generic_JsonIter-12 100000 38097 ns/op 342.20 MB/s 55790 B/op 1068 allocs/op
BenchmarkDecoder_Parallel_Generic_GoJson-12 100000 33294 ns/op 391.57 MB/s 66364 B/op 974 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic-12 100000 21363 ns/op 610.25 MB/s 63889 B/op 314 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_V1-12 100000 24666 ns/op 528.55 MB/s 56823 B/op 723 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_Fast-12 100000 19639 ns/op 663.84 MB/s 49063 B/op 313 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonnet-12 100000 33211 ns/op 392.55 MB/s 50233 B/op 739 allocs/op
BenchmarkDecoder_Binding_StdLib-12 100000 119862 ns/op 108.77 MB/s 10576 B/op 208 allocs/op
BenchmarkDecoder_Binding_JsonIter-12 100000 37648 ns/op 346.29 MB/s 14672 B/op 385 allocs/op
BenchmarkDecoder_Binding_GoJson-12 100000 30700 ns/op 424.66 MB/s 22031 B/op 49 allocs/op
BenchmarkDecoder_Binding_Sonic-12 100000 31562 ns/op 413.05 MB/s 38060 B/op 35 allocs/op
BenchmarkDecoder_Binding_Sonic_V1-12 100000 32212 ns/op 404.72 MB/s 27327 B/op 137 allocs/op
BenchmarkDecoder_Binding_Sonic_Fast-12 100000 28587 ns/op 456.05 MB/s 24280 B/op 34 allocs/op
BenchmarkDecoder_Binding_Sonnet-12 100000 68974 ns/op 189.01 MB/s 50228 B/op 739 allocs/op
BenchmarkDecoder_Parallel_Binding_StdLib-12 100000 27176 ns/op 479.73 MB/s 10575 B/op 208 allocs/op
BenchmarkDecoder_Parallel_Binding_JsonIter-12 100000 11446 ns/op 1138.96 MB/s 14674 B/op 385 allocs/op
BenchmarkDecoder_Parallel_Binding_GoJson-12 100000 9237 ns/op 1411.39 MB/s 22102 B/op 49 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic-12 100000 9081 ns/op 1435.69 MB/s 39066 B/op 35 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_V1-12 100000 9358 ns/op 1393.20 MB/s 27372 B/op 137 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_Fast-12 100000 8292 ns/op 1572.23 MB/s 24347 B/op 34 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonnet-12 100000 11304 ns/op 1153.32 MB/s 11656 B/op 130 allocs/op
BenchmarkEncoder_Generic_StdLib-12 100000 110818 ns/op 117.64 MB/s 44266 B/op 751 allocs/op
BenchmarkEncoder_Generic_JsonIter-12 100000 44940 ns/op 290.10 MB/s 14347 B/op 115 allocs/op
BenchmarkEncoder_Generic_GoJson-12 100000 68311 ns/op 190.85 MB/s 23464 B/op 18 allocs/op
BenchmarkEncoder_Generic_Sonic-12 100000 33923 ns/op 384.31 MB/s 13759 B/op 4 allocs/op
BenchmarkEncoder_Generic_Sonic_Fast-12 100000 23436 ns/op 556.28 MB/s 9727 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_StdLib-12 100000 40058 ns/op 325.45 MB/s 44288 B/op 751 allocs/op
BenchmarkEncoder_Parallel_Generic_JsonIter-12 100000 11915 ns/op 1094.20 MB/s 14358 B/op 115 allocs/op
BenchmarkEncoder_Parallel_Generic_GoJson-12 100000 20948 ns/op 622.36 MB/s 23445 B/op 18 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic-12 100000 10335 ns/op 1261.48 MB/s 14056 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_Fast-12 100000 5895 ns/op 2211.64 MB/s 9821 B/op 4 allocs/op
BenchmarkEncoder_Binding_StdLib-12 100000 18100 ns/op 720.29 MB/s 9480 B/op 1 allocs/op
BenchmarkEncoder_Binding_JsonIter-12 100000 22245 ns/op 586.08 MB/s 9487 B/op 2 allocs/op
BenchmarkEncoder_Binding_GoJson-12 100000 7886 ns/op 1653.13 MB/s 9482 B/op 1 allocs/op
BenchmarkEncoder_Binding_Sonic-12 100000 5659 ns/op 2303.64 MB/s 14253 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_Fast-12 100000 4961 ns/op 2627.89 MB/s 10056 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_StdLib-12 100000 4468 ns/op 2917.64 MB/s 9487 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Binding_JsonIter-12 100000 5370 ns/op 2427.56 MB/s 9496 B/op 2 allocs/op
BenchmarkEncoder_Parallel_Binding_GoJson-12 100000 2928 ns/op 4453.05 MB/s 9500 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic-12 100000 1348 ns/op 9670.27 MB/s 14279 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_Fast-12 100000 1162 ns/op 11219.60 MB/s 10056 B/op 4 allocs/op
BenchmarkDecoder_Generic_StdLib-12 5000 6120476 ns/op 103.18 MB/s 2151910 B/op 31261 allocs/op
BenchmarkDecoder_Generic_JsonIter-12 5000 4260781 ns/op 148.22 MB/s 2427840 B/op 45043 allocs/op
BenchmarkDecoder_Generic_GoJson-12 5000 4088162 ns/op 154.47 MB/s 2757799 B/op 39700 allocs/op
BenchmarkDecoder_Generic_Sonic-12 5000 2561050 ns/op 246.58 MB/s 2609818 B/op 12137 allocs/op
BenchmarkDecoder_Generic_Sonic_V1-12 5000 3041447 ns/op 207.64 MB/s 2344109 B/op 29781 allocs/op
BenchmarkDecoder_Generic_Sonic_Fast-12 5000 2488119 ns/op 253.81 MB/s 1967848 B/op 12136 allocs/op
BenchmarkDecoder_Generic_Sonnet-12 5000 3212028 ns/op 196.61 MB/s 2096696 B/op 30183 allocs/op
BenchmarkDecoder_Parallel_Generic_StdLib-12 5000 1534652 ns/op 411.50 MB/s 2152041 B/op 31262 allocs/op
BenchmarkDecoder_Parallel_Generic_JsonIter-12 5000 1197112 ns/op 527.53 MB/s 2427316 B/op 45043 allocs/op
BenchmarkDecoder_Parallel_Generic_GoJson-12 5000 1046451 ns/op 603.48 MB/s 2756561 B/op 39698 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic-12 5000 699298 ns/op 903.07 MB/s 2614464 B/op 12136 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_V1-12 5000 906161 ns/op 696.91 MB/s 2343733 B/op 29780 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_Fast-12 5000 784229 ns/op 805.27 MB/s 1967387 B/op 12135 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonnet-12 5000 1057777 ns/op 597.02 MB/s 2096632 B/op 30182 allocs/op
BenchmarkDecoder_Binding_StdLib-12 5000 5519137 ns/op 114.42 MB/s 601858 B/op 5848 allocs/op
BenchmarkDecoder_Binding_JsonIter-12 5000 1831864 ns/op 344.74 MB/s 748192 B/op 18781 allocs/op
BenchmarkDecoder_Binding_GoJson-12 5000 1178029 ns/op 536.08 MB/s 901550 B/op 2799 allocs/op
BenchmarkDecoder_Binding_Sonic-12 5000 1199569 ns/op 526.45 MB/s 1105079 B/op 1683 allocs/op
BenchmarkDecoder_Binding_Sonic_V1-12 5000 1232027 ns/op 512.58 MB/s 560149 B/op 4533 allocs/op
BenchmarkDecoder_Binding_Sonic_Fast-12 5000 1125198 ns/op 561.25 MB/s 464553 B/op 1682 allocs/op
BenchmarkDecoder_Binding_Sonnet-12 5000 3055920 ns/op 206.65 MB/s 2096695 B/op 30183 allocs/op
BenchmarkDecoder_Parallel_Binding_StdLib-12 5000 1182782 ns/op 533.92 MB/s 601871 B/op 5848 allocs/op
BenchmarkDecoder_Parallel_Binding_JsonIter-12 5000 476816 ns/op 1324.44 MB/s 748068 B/op 18781 allocs/op
BenchmarkDecoder_Parallel_Binding_GoJson-12 5000 271643 ns/op 2324.79 MB/s 901943 B/op 2795 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic-12 5000 281690 ns/op 2241.87 MB/s 1108846 B/op 1683 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_V1-12 5000 296465 ns/op 2130.15 MB/s 560588 B/op 4533 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_Fast-12 5000 264516 ns/op 2387.44 MB/s 465060 B/op 1682 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonnet-12 5000 359303 ns/op 1757.61 MB/s 396600 B/op 4348 allocs/op
BenchmarkEncoder_Generic_StdLib-12 5000 5943144 ns/op 106.26 MB/s 1920483 B/op 31055 allocs/op
BenchmarkEncoder_Generic_JsonIter-12 5000 2492510 ns/op 253.36 MB/s 637167 B/op 3793 allocs/op
BenchmarkEncoder_Generic_GoJson-12 5000 3550643 ns/op 177.86 MB/s 1100084 B/op 544 allocs/op
BenchmarkEncoder_Generic_Sonic-12 5000 1134123 ns/op 556.83 MB/s 470115 B/op 5 allocs/op
BenchmarkEncoder_Generic_Sonic_V1-12 5000 1649071 ns/op 382.95 MB/s 709381 B/op 5 allocs/op
BenchmarkEncoder_Generic_Sonic_Fast-12 5000 1147522 ns/op 550.33 MB/s 470639 B/op 5 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic-12 5000 240012 ns/op 2631.17 MB/s 472896 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_JsonIter-12 5000 485174 ns/op 1301.62 MB/s 644095 B/op 3793 allocs/op
BenchmarkEncoder_Parallel_Generic_GoJson-12 5000 749546 ns/op 842.53 MB/s 1060605 B/op 550 allocs/op
BenchmarkEncoder_Parallel_Generic_StdLib-12 5000 1702450 ns/op 370.94 MB/s 1922308 B/op 31055 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_V1-12 5000 582658 ns/op 1083.85 MB/s 712830 B/op 5 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_Fast-12 5000 348096 ns/op 1814.19 MB/s 471770 B/op 4 allocs/op
BenchmarkEncoder_Binding_StdLib-12 5000 1115137 ns/op 566.31 MB/s 324698 B/op 1423 allocs/op
BenchmarkEncoder_Binding_JsonIter-12 5000 1087129 ns/op 580.90 MB/s 275567 B/op 314 allocs/op
BenchmarkEncoder_Binding_GoJson-12 5000 537630 ns/op 1174.63 MB/s 265792 B/op 15 allocs/op
BenchmarkEncoder_Binding_Sonic-12 5000 212572 ns/op 2970.83 MB/s 264782 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_V1-12 5000 255639 ns/op 2470.34 MB/s 391700 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_Fast-12 5000 216416 ns/op 2918.05 MB/s 265716 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_StdLib-12 5000 186556 ns/op 3385.12 MB/s 325774 B/op 1423 allocs/op
BenchmarkEncoder_Parallel_Binding_JsonIter-12 5000 174684 ns/op 3615.17 MB/s 278099 B/op 314 allocs/op
BenchmarkEncoder_Parallel_Binding_GoJson-12 5000 115085 ns/op 5487.37 MB/s 268657 B/op 15 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic-12 5000 43834 ns/op 14406.79 MB/s 267855 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_V1-12 5000 63657 ns/op 9920.59 MB/s 394323 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_Fast-12 5000 45873 ns/op 13766.56 MB/s 267750 B/op 4 allocs/op