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Faster substitution of tidwall/gjson
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cloudwego/gjson
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This is a wrapper lib ofgjson, which is accelerated bysonic's algorithm.
It's usually faster than original one, especially for large JSON. (see codeshere)
goversion: 1.22.0goos: linuxgoarch: amd64cpu: Intel(R) Xeon(R) Platinum 8260 CPU @ 2.40GHz │ origin.out │ target.out │ │ sec/op │ sec/op vs base │GetComplexPath/small-32 3.000µ ± 6% 2.591µ ± 6% -13.65% (p=0.000 n=10)GetComplexPath/medium-32 24.855µ ± 5% 6.464µ ± 8% -74.00% (p=0.000 n=10)GetComplexPath/large-32 1309.1µ ± 3% 270.0µ ± 8% -79.37% (p=0.000 n=10)GetSimplePath/small-32 702.1n ± 11% 634.3n ± 5% -9.66% (p=0.000 n=10)GetSimplePath/medium-32 9.558µ ± 3% 1.744µ ± 4% -81.76% (p=0.000 n=10)GetSimplePath/Large-32 342.03µ ± 14% 37.83µ ± 5% -88.94% (p=0.000 n=10)geomean 24.64µ 7.576µ -69.26% │ origin.out │ target.out │ │ B/op │ B/op vs base │GetComplexPath/small-32 104.0 ± 0% 104.0 ± 0% ~ (p=1.000 n=10) ¹GetComplexPath/medium-32 16.00 ± 0% 16.00 ± 0% ~ (p=1.000 n=10) ¹GetComplexPath/large-32 16.00 ± 0% 16.00 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/small-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/medium-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/Large-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹geomean ² +0.00% ²¹ all samples are equal² summaries must be >0 to compute geomean │ origin.out │ target.out │ │ allocs/op │ allocs/op vs base │GetComplexPath/small-32 6.000 ± 0% 6.000 ± 0% ~ (p=1.000 n=10) ¹GetComplexPath/medium-32 2.000 ± 0% 2.000 ± 0% ~ (p=1.000 n=10) ¹GetComplexPath/large-32 2.000 ± 0% 2.000 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/small-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/medium-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹GetSimplePath/Large-32 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹geomean ² +0.00%This option is used to cache parsed simple paths and search JSON path all-in-once in C funtions, to reduce the overhead of c-go interaction. By default, this option is disabled, because it will and consumes a little more memory than default. You can enable it by set environment variableGJSON_FAST_PATH=1.
By default, Gjson doesn't use the SIMD algorithm when decoding a string and does not validate UTF8 either, thus its string-value APIs' behaviors are slow and different fromencoding/json. You can change the behaviors by setting the environment variable below:
GJSON_FAST_STRING=1:SIMD-implementedstring parsing. The string-value APIs' behaviors will be the same as sonic/decoder's default behavior, with 2~3X times the speed of default string-parsing.GJSON_FAST_STRING=2,SIMD-implementedstring parsing, and UTF-8 validating. String-value APIs' behaviors will be totally same withencoding/json.Decodeand also faster than the default.
This is a benchmark on the above options (seecodes):
goversion: 1.22.0goos: linuxgoarch: amd64pkg: github.com/tidwall/gjson/testdatacpu: Intel(R) Xeon(R) Platinum 8260 CPU @ 2.40GHzBenchmarkFastPath/normal/small-32 741.1 ns/op 0 B/op 0 allocs/opBenchmarkFastPath/normal/medium-32 1846 ns/op 0 B/op 0 allocs/opBenchmarkFastPath/normal/Large-32 38675 ns/op 0 B/op 0 allocs/opBenchmarkFastPath/fast-path/small-32 364.4 ns/op 0 B/op 0 allocs/opBenchmarkFastPath/fast-path/medium-32 1662 ns/op 0 B/op 0 allocs/opBenchmarkFastPath/fast-path/Large-32 38976 ns/op 0 B/op 0 allocs/opBenchmarkParseString/normal/small-32 401.8 ns/op 192 B/op 2 allocs/opBenchmarkParseString/normal/medium-32 4600 ns/op 2560 B/op 2 allocs/opBenchmarkParseString/normal/large-32 63202 ns/op 27904 B/op 2 allocs/opBenchmarkParseString/fast-string/small-32 219.7 ns/op 96 B/op 1 allocs/opBenchmarkParseString/fast-string/medium-32 2076 ns/op 1408 B/op 1 allocs/opBenchmarkParseString/fast-string/large-32 15814 ns/op 14336 B/op 1 allocs/opBenchmarkParseString/validate-string/small-32 231.6 ns/op 96 B/op 1 allocs/opBenchmarkParseString/validate-string/medium-32 2116 ns/op 1408 B/op 1 allocs/opBenchmarkParseString/validate-string/large-32 16779 ns/op 14336 B/op 1 allocs/opAbout
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