[Backend] refactor: 增加json模块

[wklken]

提取代码中的jsoniter处理逻辑, 封装

使用tag编译期决定使用哪种实现

• 例如: go-json: Add support go-json, another drop-in json replacement. gin-gonic/gin#2680

参考实现: https://github.com/gin-gonic/gin/blob/master/internal/json/go_json.go

[wklken]

jsoniter的MarshalToString 封装的是string([]bytes)

所以, 如果想要透明, 需要实现相应的interface

[wklken]

BenchmarkMergeContentFieldNotMerge-8     4469882               273.9 ns/op            40 B/op          3 allocs/op
BenchmarkMergeContentFieldMerge-8        1222514               975.2 ns/op           600 B/op         10 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_46-8              1316463               921.0 ns/op           544 B/op         12 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_212-8              354838              3292 ns/op            2272 B/op         37 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_887-8               72322             15392 ns/op            9403 B/op        173 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_2102-8              28666             41620 ns/op           18198 B/op        633 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_8084-8              36109             33871 ns/op           21887 B/op        430 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_46-8                1464865               807.8 ns/op           560 B/op         10 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_212-8                363081              3290 ns/op            2418 B/op         36 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_887-8                 86078             14108 ns/op            9580 B/op        152 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_2102-8                41529             28161 ns/op           13979 B/op        428 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_8084-8                32472             36873 ns/op           18731 B/op        420 allocs/op
BenchmarkJsoniterMarshal/expr_length_46-8                1917885               640.2 ns/op           296 B/op          6 allocs/op
BenchmarkJsoniterMarshal/expr_length_212-8                487675              2380 ns/op             984 B/op         18 allocs/op
BenchmarkJsoniterMarshal/expr_length_887-8                127900              9611 ns/op            3449 B/op         60 allocs/op
BenchmarkJsoniterMarshal/expr_length_2102-8                83836             14431 ns/op            3065 B/op         18 allocs/op
BenchmarkJsoniterMarshal/expr_length_8084-8                44642             26718 ns/op            8443 B/op          6 allocs/op
BenchmarkGoJsonMarshal/expr_length_46-8                  2320748               517.3 ns/op            48 B/op          1 allocs/op
BenchmarkGoJsonMarshal/expr_length_212-8                  653786              1607 ns/op             224 B/op          1 allocs/op
BenchmarkGoJsonMarshal/expr_length_887-8                  189902              6200 ns/op             897 B/op          1 allocs/op
BenchmarkGoJsonMarshal/expr_length_2102-8                 101100             11352 ns/op            2307 B/op          1 allocs/op
BenchmarkGoJsonMarshal/expr_length_8084-8                  79166             15382 ns/op            8215 B/op          1 allocs/op

压测代码:

var table = []struct {
	jsonExpr string
}{
	{jsonExpr: `{"StringEquals":{"bk_cmdb.biz.id":["100605"]}}`},
	{
		jsonExpr: `{"AND":{"content":[{"StringEquals":{"bk_bcs_app.namespace.id":["15171:d7a4aa53ie"]}},{"StringPrefix":{"bk_bcs_app.namespace._bk_iam_path_":["/project,b37778ec757544868a01e1f01f07037f/cluster,BCS-K8S-15171/"]}}]}}`,
	},
	{
		jsonExpr: `{"OR":{"content":[{"AND":{"content":[{"StringEquals":{"bk_bcs_app.namespace.id":["15091:772cdb3dhi","15091:11c90639hi","15091:8f07ea69hi","15091:549be245hi","15091:36da8568te","15091:97b04a4chi"]}},{"StringPrefix":{"bk_bcs_app.namespace._bk_iam_path_":["/project,b37778ec757544868a01e1f01f07037f/cluster,BCS-K8S-15091/"]}}]}},{"AND":{"content":[{"StringEquals":{"bk_bcs_app.namespace.id":["15113:772cdb3dhi","15113:e08c977fhi","15113:9700d8bfhi","15113:d849d60cte","15113:522ffd1dte","15113:2678b8fehi"]}},{"StringPrefix":{"bk_bcs_app.namespace._bk_iam_path_":["/project,b37778ec757544868a01e1f01f07037f/cluster,BCS-K8S-15113/"]}}]}},{"AND":{"content":[{"StringEquals":{"bk_bcs_app.namespace.id":["15171:b5725905ie","15171:fe14bf80ie","15171:f6d3cfafie"]}},{"StringPrefix":{"bk_bcs_app.namespace._bk_iam_path_":["/project,b37778ec757544868a01e1f01f07037f/cluster,BCS-K8S-15171/"]}}]}}]}}`,
	},
	{
		jsonExpr: `{"OR":{"content":[{"StringEquals":{"bk_job.cron.id":["1001800","1001801","1001802","1001803","1001804","1001805","1001806","1001807","1001808","1001809","1001810","1001811","1001812","1001813","1001814","1001815","1001816","1001817","1001818","1001819","1001820","1001821","1001822","1001823","1001824","1001825","1001826","1001827","1001828","1001829","1001830","1001831","1001832","1001833","1001834","1001835","1001836","1001837","1001838","1001839","1001840","1001841","1001842","1001847","1001848","1001855","1001856","1001858","1001868","1001869","1001871","1001872","1001873","1001876","1001877","1001878","1001879","1001880","1001881","1001882","1001883","1001884","1001885","1001886","1001887","1001888","1001889","1001890","1001891","1001892","1001893","1001894","1001895","1001896","1001897","1001898","1001899","1001900","1001901","1001902","1001903","1001904","1001905","1001906","1001907","1001908","1001909","1001910","1001911","1001912","1001913","1001914","1001915","1001916","1001917","1001918","1001919","1001920","1001921","1001922","1001923","1001924","1001925","1001926","1001927","1001928","1001929","1001930","1001931","1001932","1001933","1001936","1001937","1001938","1001939","1001940","1001941","1001942","1001943","1001944","1001945","1001946","1001947","1001948","1001949","1001950","1001951","1001952","1001953","1001954","1001955","1001956","1001957","1001958","1001959","1001960","1001961","1001962","1001963","1001964","1001965","1001966","1001967","1001968","1001969","1001970","1001971","1001972","1001973","1001974","1001975","1001976","1001977","1001978","1001979","1001980","1001981","1001983","1001984","1001986","1001987","1001988","1001989","1001990","1001991","1001992","1001993","1001994","1001995","1001996","1001997","1001998","1001999","1002006","1002007","1002008","1002009","1002010","1002011","1002015","1002016","1002017","1002018","1002019","1002020","1002022","1002023","1002024","1002025","1002026","1002027","1002028","1002029","1002030","1002031","1002032","1002033"]}},{"StringPrefix":{"bk_job.cron._bk_iam_path_":["/business_set,9991001/"]}}]}}`,
	},
	{
		jsonExpr: `{"StringEquals":{"bk_cmdb.biz_custom_query.id":["8aa702a2-5ee5-11ec-a562-525400a7e3df","bd6e11ee-5ee6-11ec-a562-525400a7e3df","0ad936e8-5ee7-11ec-a562-525400a7e3df","d82133e5-5ee7-11ec-a562-525400a7e3df","cceed653-5eed-11ec-a562-525400a7e3df","368dc825-5eee-11ec-a562-525400a7e3df","b19e9ea5-6133-11ec-a562-525400a7e3df","ddeb5882-61fc-11ec-a562-525400a7e3df","06877010-62c6-11ec-a562-525400a7e3df","30dc4ecc-638f-11ec-a562-525400a7e3df","5c7f6b07-6458-11ec-a562-525400a7e3df","77a83df8-649c-11ec-a562-525400a7e3df","89c8d804-66b2-11ec-82f6-525400a7e3df","daff1f6f-66b3-11ec-82f6-525400a7e3df","065b8a6f-677d-11ec-82f6-525400a7e3df","f9f3447f-67a8-11ec-ad80-525400a7e3df","32c9a39d-6846-11ec-9af8-525400a7e3df","5a179e3c-690f-11ec-9af8-525400a7e3df","87a9ae66-69d8-11ec-9af8-525400a7e3df","03ecf84c-6c34-11ec-9af8-525400a7e3df","30efe7d6-6cfd-11ec-9af8-525400a7e3df","5afbdd0c-6dc6-11ec-9af8-525400a7e3df","841edefd-6e8f-11ec-9af8-525400a7e3df","aecd9dee-6f58-11ec-9af8-525400a7e3df","2de27248-71b4-11ec-9af8-525400a7e3df","58a8c2e4-727d-11ec-9af8-525400a7e3df","0bd80573-72b4-11ec-896a-525400a7e3df","86115da2-72b4-11ec-896a-525400a7e3df","88705055-72b7-11ec-896a-525400a7e3df","b6346f7f-72b7-11ec-896a-525400a7e3df","dce9929b-72b7-11ec-896a-525400a7e3df","83b27dbc-7346-11ec-896a-525400a7e3df","3f0cd20d-7389-11ec-896a-525400a7e3df","a5767973-7389-11ec-896a-525400a7e3df","ace9ee4f-740f-11ec-896a-525400a7e3df","d7576759-74d8-11ec-896a-525400a7e3df","584d94fb-7734-11ec-896a-525400a7e3df","83b94408-77fd-11ec-896a-525400a7e3df","abacbdbf-78c6-11ec-896a-525400a7e3df","1866d1ad-7a62-11ec-896a-525400a7e3df","51dd49d0-7a62-11ec-896a-525400a7e3df","e57aa13e-7a62-11ec-896a-525400a7e3df","1d549b92-7a63-11ec-896a-525400a7e3df","4d25f9a8-7a63-11ec-896a-525400a7e3df","a539f5e0-7a63-11ec-896a-525400a7e3df","763c94ff-7a64-11ec-896a-525400a7e3df","2cd49119-7a65-11ec-896a-525400a7e3df","2ed538e7-7a6d-11ec-896a-525400a7e3df","86862290-7bfd-11ec-896a-525400a7e3df","805f8dda-7cb4-11ec-896a-525400a7e3df","523b491c-7cc0-11ec-896a-525400a7e3df","8d5cd5a1-7cc0-11ec-896a-525400a7e3df","eee76596-7cc0-11ec-896a-525400a7e3df","2cbcf274-7cc9-11ec-896a-525400a7e3df","d30df9ab-7cc9-11ec-896a-525400a7e3df","a825f605-7d7d-11ec-896a-525400a7e3df","d49be3ab-7e46-11ec-896a-525400a7e3df","ff044b71-7f0f-11ec-896a-525400a7e3df","2a2e7fbf-7fd9-11ec-896a-525400a7e3df","a7572b90-8234-11ec-896a-525400a7e3df","d30a6f38-82fd-11ec-896a-525400a7e3df","fe01e096-83c6-11ec-896a-525400a7e3df","298caf10-8490-11ec-896a-525400a7e3df","50bbfffd-8559-11ec-896a-525400a7e3df","d0b1fe08-87b4-11ec-896a-525400a7e3df","fca20fcd-887d-11ec-896a-525400a7e3df","26823ed8-8947-11ec-896a-525400a7e3df","5069f02a-8a10-11ec-896a-525400a7e3df","7bfe72b6-8ad9-11ec-896a-525400a7e3df","f90da93e-8d34-11ec-896a-525400a7e3df","52d3ecd7-8e10-11ec-896a-525400a7e3df","c1160905-8e10-11ec-896a-525400a7e3df","5fec003a-8e11-11ec-896a-525400a7e3df","9076342a-8e11-11ec-896a-525400a7e3df","0b6431d3-8e12-11ec-896a-525400a7e3df","97ac234a-8e12-11ec-896a-525400a7e3df","8ce20eef-8e14-11ec-896a-525400a7e3df","a7b245df-8e26-11ec-896a-525400a7e3df","3831ea58-8e29-11ec-896a-525400a7e3df","51db9b85-8e29-11ec-896a-525400a7e3df","88fdb823-8e29-11ec-896a-525400a7e3df","11dfd741-8e2a-11ec-896a-525400a7e3df","72e2407c-8e2b-11ec-896a-525400a7e3df","d7351709-8e2c-11ec-896a-525400a7e3df","8f86f87d-8e2f-11ec-896a-525400a7e3df","b19dc306-8e30-11ec-896a-525400a7e3df","436a4498-8e31-11ec-896a-525400a7e3df","d7b0187c-8e31-11ec-896a-525400a7e3df","28f395f0-8e32-11ec-896a-525400a7e3df","4ff7ac98-8ec7-11ec-896a-525400a7e3df","730d53e7-8eda-11ec-896a-525400a7e3df","89838078-8f90-11ec-84dd-525400a7e3df","85ed0eeb-8f98-11ec-84dd-525400a7e3df","b082c357-8fc5-11ec-84dd-525400a7e3df","f2bfb97b-8fc6-11ec-84dd-525400a7e3df","e110bd7c-8fd3-11ec-84dd-525400a7e3df","e843084b-8fd4-11ec-84dd-525400a7e3df","b1fe9ce8-9059-11ec-84dd-525400a7e3df","457ce7a6-9060-11ec-84dd-525400a7e3df","31d5180d-92b5-11ec-84dd-525400a7e3df","59b00266-937e-11ec-883d-525400a7e3df","860e5623-9447-11ec-883d-525400a7e3df","1538e809-9450-11ec-945f-525400a7e3df","ef73ef30-9459-11ec-9e25-525400a7e3df","80e3207a-945a-11ec-9e25-525400a7e3df","b22d2001-9510-11ec-9e25-525400a7e3df","1b0f7b1d-953a-11ec-9595-525400a7e3df","de8323eb-95d9-11ec-9595-525400a7e3df","5d6b06ec-9835-11ec-9595-525400a7e3df","849281b1-98fe-11ec-9595-525400a7e3df","b211914e-99c7-11ec-9595-525400a7e3df","d9ba05cc-9a90-11ec-9595-525400a7e3df","01efd19e-9b5a-11ec-9595-525400a7e3df","83c60a58-9db5-11ec-9595-525400a7e3df","f0b02502-9dbc-11ec-9595-525400a7e3df","2d281daa-9dbe-11ec-9595-525400a7e3df","60b7fb04-9dbf-11ec-9595-525400a7e3df","8392dcbc-9dc0-11ec-9595-525400a7e3df","eff9b4ba-9dc0-11ec-9595-525400a7e3df","ac6638ad-9e7e-11ec-9595-525400a7e3df","d89c0ce7-9f47-11ec-9595-525400a7e3df","0525cd22-a011-11ec-9595-525400a7e3df","2b6acf18-a0da-11ec-9595-525400a7e3df","ae961815-a335-11ec-9595-525400a7e3df","d4e2442e-a3fe-11ec-9595-525400a7e3df","0a918d8a-a4c8-11ec-9595-525400a7e3df","2ca89423-a591-11ec-9595-525400a7e3df","51effd8d-a65a-11ec-9595-525400a7e3df","d763494f-a8b5-11ec-9595-525400a7e3df","ff78e69a-a97e-11ec-9595-525400a7e3df","280a0252-aa48-11ec-9595-525400a7e3df","56d87b6c-ab11-11ec-9595-525400a7e3df","8407433b-abda-11ec-9595-525400a7e3df","002fbeca-ae36-11ec-9595-525400a7e3df","2af3aedf-aeff-11ec-9595-525400a7e3df","5227417f-afc8-11ec-9595-525400a7e3df","7d6f0a57-b091-11ec-9595-525400a7e3df","a793c539-b15a-11ec-9595-525400a7e3df","27332842-b3b6-11ec-9595-525400a7e3df","51d7d4fb-b47f-11ec-9595-525400a7e3df","7ea8593a-b548-11ec-9595-525400a7e3df","a8eab5f3-b611-11ec-9595-525400a7e3df","d1a45d9b-b6da-11ec-9595-525400a7e3df","50c02c97-b936-11ec-9595-525400a7e3df","ca69119c-b96e-11ec-9595-525400a7e3df","7fcf96b4-b9ff-11ec-9595-525400a7e3df","a9a73d16-bac8-11ec-9595-525400a7e3df","d14aa84e-bb91-11ec-9595-525400a7e3df","fcaa254f-bc5a-11ec-9595-525400a7e3df","b6147708-bc5e-11ec-9595-525400a7e3df","788ce1b1-beb6-11ec-9595-525400a7e3df","a2928a9e-bf7f-11ec-9595-525400a7e3df","d1791432-bfb6-11ec-b2b0-525400a7e3df","cc94940a-c048-11ec-b2b0-525400a7e3df","f558d2c9-c111-11ec-b2b0-525400a7e3df","1ff67d7b-c1db-11ec-b2b0-525400a7e3df","a10684e1-c436-11ec-b2b0-525400a7e3df","c8e67a5c-c4ff-11ec-b2b0-525400a7e3df","f1db1027-c5c8-11ec-b2b0-525400a7e3df","224a3abb-c692-11ec-b2b0-525400a7e3df","4ca51070-c75b-11ec-b2b0-525400a7e3df","ca949f4f-c9b6-11ec-b2b0-525400a7e3df","eefb2490-ca7f-11ec-b2b0-525400a7e3df","213ca755-cb49-11ec-b2b0-525400a7e3df","4d61a555-cc12-11ec-b2b0-525400a7e3df","3ac3f76c-cc25-11ec-b2b0-525400a7e3df","75193bef-ccdb-11ec-b2b0-525400a7e3df","f061e921-cf36-11ec-b2b0-525400a7e3df","195f6232-d000-11ec-b2b0-525400a7e3df","4407c5a1-d0c9-11ec-b2b0-525400a7e3df","6e9c0ed3-d192-11ec-b2b0-525400a7e3df","98876c15-d25b-11ec-b2b0-525400a7e3df","1b7d1c5f-d4b7-11ec-b2b0-525400a7e3df","4334e3dc-d580-11ec-b2b0-525400a7e3df","6eb7cad4-d649-11ec-b2b0-525400a7e3df","996c80ef-d712-11ec-b2b0-525400a7e3df","c5591ebb-d7db-11ec-b2b0-525400a7e3df","437cde7e-da37-11ec-b2b0-525400a7e3df","6b3b9ab0-db00-11ec-9df7-525400a7e3df","9261881e-dbc9-11ec-bb28-525400a7e3df","19ee7d40-dbcc-11ec-bb28-525400a7e3df","f3a5000f-dbce-11ec-bb28-525400a7e3df","3bdf4f7a-dbcf-11ec-bb28-525400a7e3df","6a4d258d-dbd0-11ec-bb28-525400a7e3df","fd3b3a9a-dbd1-11ec-bb28-525400a7e3df","7c71be5d-dbd3-11ec-bb28-525400a7e3df","180ff695-dbd4-11ec-bb28-525400a7e3df","b80ddb98-dc92-11ec-bf35-525400a7e3df","e4a9741d-dd5b-11ec-bf35-525400a7e3df","6218c1d5-dfb7-11ec-bf35-525400a7e3df","aec960c5-dfc7-11ec-bf35-525400a7e3df","c5c9cf38-dfc8-11ec-bf35-525400a7e3df","8d2072bf-e080-11ec-bf35-525400a7e3df","b68b1020-e149-11ec-bf35-525400a7e3df","e1c986e3-e212-11ec-bf35-525400a7e3df","0c7df664-e2dc-11ec-b8c1-525400a7e3df","8b8d8c5d-e537-11ec-b8c1-525400a7e3df","b58b4d89-e600-11ec-b8c1-525400a7e3df","df6246a6-e6c9-11ec-b8c1-525400a7e3df","0a749adb-e793-11ec-b8c1-525400a7e3df","35a8fdc6-e85c-11ec-b8c1-525400a7e3df","b442b3a1-eab7-11ec-b8c1-525400a7e3df","dd861d2b-eb80-11ec-b8c1-525400a7e3df","07a3d097-ec4a-11ec-b8c1-525400a7e3df","3373e2e2-ed13-11ec-b8c1-525400a7e3df","5fe840de-eddc-11ec-bdeb-c6e85b52860d"]}}`,
	},
}

func BenchmarkJsoniterUnmarshal(b *testing.B) {
	for _, v := range table {
		cond := pdptypes.PolicyCondition{}
		expr := []byte(v.jsonExpr)
		b.Run(fmt.Sprintf("expr_length_%d", len(v.jsonExpr)), func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				jsoniter.Unmarshal(expr, &cond)
			}
		})
	}
}

func BenchmarkGoJsonUnmarshal(b *testing.B) {
	for _, v := range table {
		cond := pdptypes.PolicyCondition{}
		expr := []byte(v.jsonExpr)
		b.Run(fmt.Sprintf("expr_length_%d", len(v.jsonExpr)), func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				gojson.Unmarshal(expr, &cond)
			}
		})
	}
}

func BenchmarkJsoniterMarshal(b *testing.B) {
	for _, v := range table {
		cond := pdptypes.PolicyCondition{}
		expr := []byte(v.jsonExpr)
		jsoniter.Unmarshal(expr, &cond)

		b.Run(fmt.Sprintf("expr_length_%d", len(v.jsonExpr)), func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				jsoniter.Marshal(cond)
			}
		})
	}
}

func BenchmarkGoJsonMarshal(b *testing.B) {
	for _, v := range table {
		cond := pdptypes.PolicyCondition{}
		expr := []byte(v.jsonExpr)
		gojson.Unmarshal(expr, &cond)

		b.Run(fmt.Sprintf("expr_length_%d", len(v.jsonExpr)), func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				gojson.Marshal(cond)
			}
		})
	}
}

[zhu327]

BenchmarkJsoniterUnmarshal/expr_length_46-8         	  854223	      1246 ns/op	     544 B/op	      12 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_212-8        	  302418	      3832 ns/op	    2272 B/op	      37 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_887-8        	   65258	     17590 ns/op	    9403 B/op	     173 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_2102-8       	   25634	     46273 ns/op	   18198 B/op	     633 allocs/op
BenchmarkJsoniterUnmarshal/expr_length_8084-8       	   34735	     33629 ns/op	   21887 B/op	     430 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_46-8           	 1326015	       905.7 ns/op	     560 B/op	      10 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_212-8          	  349120	      3537 ns/op	    2418 B/op	      36 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_887-8          	   82766	     14516 ns/op	    9580 B/op	     152 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_2102-8         	   36567	     33287 ns/op	   13978 B/op	     428 allocs/op
BenchmarkGoJsonUnmarshal/expr_length_8084-8         	   32104	     38614 ns/op	   18726 B/op	     420 allocs/op
BenchmarkJsoniterMarshal/expr_length_46-8           	 1561269	       737.5 ns/op	     296 B/op	       6 allocs/op
BenchmarkJsoniterMarshal/expr_length_212-8          	  493842	      2485 ns/op	     984 B/op	      18 allocs/op
BenchmarkJsoniterMarshal/expr_length_887-8          	  115850	      9291 ns/op	    3449 B/op	      60 allocs/op
BenchmarkJsoniterMarshal/expr_length_2102-8         	   77986	     15296 ns/op	    3065 B/op	      18 allocs/op
BenchmarkJsoniterMarshal/expr_length_8084-8         	   53676	     22854 ns/op	    8445 B/op	       6 allocs/op
BenchmarkGoJsonMarshal/expr_length_46-8             	 2074903	       561.2 ns/op	      48 B/op	       1 allocs/op
BenchmarkGoJsonMarshal/expr_length_212-8            	  729400	      1696 ns/op	     224 B/op	       1 allocs/op
BenchmarkGoJsonMarshal/expr_length_887-8            	  170414	      6372 ns/op	     896 B/op	       1 allocs/op
BenchmarkGoJsonMarshal/expr_length_2102-8           	   93480	     12716 ns/op	    2307 B/op	       1 allocs/op
BenchmarkGoJsonMarshal/expr_length_8084-8           	   87489	     14424 ns/op	    8210 B/op	       1 allocs/op

[wklken]

影响较大, 一不小心就是生产事故, 需要谨慎
并且, 里面应该有些用了jsoniter的定制方法, 不好迁移的

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先分类, 评估, 再确定 => 例如gin的可以先升级变异切换, 业务代码的先不动(评估影响)