Because the standard Golang library sometimes isn't enough...
These benchmarks are aimed at providing the latest (Dec 2019) results of various popular drop-in replacements for the Golang encoding/json library.
- encoding/json: Golang standard library
- segmentio/json: https://github.com/segmentio/encoding/tree/master/json
- jsoniter: https://github.com/json-iterator/go
- easyjson: https://github.com/mailru/easyjson
Originally based on jsoniter's go-benchmark, these have been go-modules-modernized and improved.
Suggestions and contributions are welcome!
go version go1.13.5 darwin/amd64
MacBook Pro (15-inch, 2018)
2.6 GHz 6-Core Intel Core i7
16 GB 2400 MHz DDR4
| benchmark | iter | time/iter | bytes/op | allocs/op |
|---|---|---|---|---|
| BenchmarkDecodeStdStructSmall-12 | 469744 | 2334 ns/op | 272 B/op | 6 allocs/op |
| BenchmarkEncodeStdStructSmall-12 | 2625330 | 493 ns/op | 192 B/op | 2 allocs/op |
| BenchmarkDecodeSegmentioJsonStructSmall-12 | 1284361 | 889 ns/op | 64 B/op | 2 allocs/op |
| BenchmarkEncodeSegmentioJsonStructSmall-12 | 3632870 | 375 ns/op | 192 B/op | 2 allocs/op |
| BenchmarkDecodeJsoniterStructSmall-12 | 1963063 | 595 ns/op | 64 B/op | 2 allocs/op |
| BenchmarkEncodeJsoniterStructSmall-12 | 2650510 | 516 ns/op | 192 B/op | 2 allocs/op |
| BenchmarkDecodeEasyJsonSmall-12 | 1741574 | 680 ns/op | 64 B/op | 2 allocs/op |
| BenchmarkEncodeEasyJsonSmall-12 | 4292940 | 278 ns/op | 128 B/op | 1 allocs/op |
| BenchmarkDecodeStdStructMedium-12 | 63357 | 19156 ns/op | 496 B/op | 11 allocs/op |
| BenchmarkEncodeStdStructMedium-12 | 1625660 | 749 ns/op | 224 B/op | 2 allocs/op |
| BenchmarkDecodeSegmentioJsonStructMedium-12 | 215605 | 5494 ns/op | 80 B/op | 2 allocs/op |
| BenchmarkEncodeSegmentioJsonStructMedium-12 | 2399955 | 492 ns/op | 224 B/op | 2 allocs/op |
| BenchmarkDecodeJsoniterStructMedium-12 | 208089 | 5739 ns/op | 384 B/op | 41 allocs/op |
| BenchmarkEncodeJsoniterStructMedium-12 | 1600407 | 757 ns/op | 224 B/op | 2 allocs/op |
| BenchmarkDecodeEasyJsonMedium-12 | 163221 | 7059 ns/op | 160 B/op | 4 allocs/op |
| BenchmarkEncodeEasyJsonMedium-12 | 2135684 | 568 ns/op | 576 B/op | 3 allocs/op |
| BenchmarkDecodeStdStructLarge-12 | 5624 | 213245 ns/op | 344 B/op | 7 allocs/op |
| BenchmarkEncodeStdStructLarge-12 | 1372980 | 853 ns/op | 160 B/op | 2 allocs/op |
| BenchmarkDecodeSegmentioJsonStructLarge-12 | 13791 | 83988 ns/op | 0 B/op | 0 allocs/op |
| BenchmarkEncodeSegmentioJsonStructLarge-12 | 2916681 | 415 ns/op | 160 B/op | 2 allocs/op |
| BenchmarkDecodeJsoniterStructLarge-12 | 13924 | 86726 ns/op | 12885 B/op | 1124 allocs/op |
| BenchmarkEncodeJsoniterStructLarge-12 | 2094675 | 581 ns/op | 160 B/op | 2 allocs/op |