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perf(util/gconv): add cache logic to enhance performance #3673

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merged 28 commits into from
Sep 9, 2024

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@wln32 wln32 commented Jul 1, 2024

  1. gconv.Scan, gconv.Struct之类的函数(只要是转换到struct类型的)增加了缓存逻辑,不需要重复解析
  2. 对于常见类型的字段的转换使用gconv.Int, gconv.String之类的,无需多次判断
  3. 缓存特性由UseConvCacheExperiment函数来控制,默认开启,如果开启后有什么bug,关闭即可,平稳过渡
  4. 对于上次 perf(util/gconv): improve performance for struct converting #3412 的改进来说,性能方面大幅度提升,运行速度差不多有4倍,内存方面大幅度减少
  5. 对于需要模糊匹配的情况,增加一个字段来记上次找到的key,大概率可以不再需要模糊匹配
  6. 针对paramsMap的长度选择合适的方法来做赋值
    1. 如果paramsMap的长度比结构体的字段数量少,那么以paramsMap来做循环
    2. 反之用结构体字段map来做循环
      这么所的原因是当paramsMap的长度和结构体字段数量差距过大时,会造成一些不必要浪费
      比如 以下代码
type structType2 struct {
	Name  string
	Score int
	Age   int
	ID    int

	Name1  string
	Score1 int
	Age1   int
	ID1    int
}
m := map[string]any{
	"Name":  "qiang",
	"Score": 600,
	"Age":   98,
	"ID":    199,
}

如果采用结构体字段map的长度来做循环,那么至少需要循环len(结构体字段map)次,即时使用一个额外的字段来统计赋值次数,在合适的时机退出,也不能保证赋值4次就可以退出,因为map的无序性,可能前三个字段一开始就匹配好了,最后一个ID字段可能在第七次才匹配到,中间几次没有匹配到,依然需要模糊匹配,所以这里以paramsMap的长度来做循环比较好
另外一种情况也是同样的


以下是本次的性能,会有一些浮动,

最新提交的性能是
Benchmark_doStruct_Fields8_Basic_MapToStruct
Benchmark_doStruct_Fields8_Basic_MapToStruct-8           3223788              1882 ns/op               9 B/op          0 allocs/op


commit [26c14b3] 之前的
Benchmark_doStruct_Fields8_Basic_MapToStruct
Benchmark_doStruct_Fields8_Basic_MapToStruct-8            976039              6240 ns/op            1310 B/op         10 allocs/op

---
之前pr#3412的
Benchmark_Struct_my_Fields8_Basic_MapToStruct       
Benchmark_Struct_my_Fields8_Basic_MapToStruct-8          482611             11708 ns/op            2074 B/op         44 allocs/op

Benchmark_Struct_gf_Fields8_Basic_MapToStruct                                                                                     
Benchmark_Struct_gf_Fields8_Basic_MapToStruct-8           214789             27090 ns/op            7668 B/op        138 allocs/op

@gqcn gqcn added the awesome It's awesome! We keep watching. label Jul 1, 2024
wln32 and others added 9 commits July 2, 2024 08:07
2.修改或新增一些注释
3.删除无用代码
2.对doStruct的params参数增加map[string]any的快速判断,减少内存申请次数
2.模糊匹配时增加一个字段来记录最后一次匹配到的key,加快匹配
2.增加bool和[]byte两个常见类型的转换函数
@wln32 wln32 changed the title util/gconv: Add gconv.Struct cache logic perf(util/gconv): Add gconv.Struct cache logic Jul 5, 2024
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gqcn commented Jul 17, 2024

@wln32 很棒的性能优化思路 👍 我刚粗略看了下,整体实现逻辑上没什么问题的,我需要仔细看看学习一下细节,需要花一点时间哈。

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Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿


@wln32 Great performance optimization idea 👍 I just took a quick look at it, and there is nothing wrong with the overall implementation logic. I need to take a closer look at the details and spend some time.

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gqcn commented Aug 8, 2024

I'm still reviewing this. ❤️

gqcn and others added 2 commits August 14, 2024 21:16
…truct converting (#3)

* fix(cmd/gf): fix command `gf up` with `-u` option upgrading packages indirectly required would fail with higher version of go required (gogf#3687)

* up

* up

* refactor(util/gconv): add struct&field cache to improve performance for struct converting

---------

Co-authored-by: 海亮 <739476267@qq.com>
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sonarcloud bot commented Sep 9, 2024

@gqcn gqcn changed the title perf(util/gconv): Add gconv.Struct cache logic perf(util/gconv): add cache logic to enhance performance Sep 9, 2024
@gqcn gqcn merged commit 1b4ebc0 into gogf:master Sep 9, 2024
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houseme added a commit that referenced this pull request Sep 12, 2024
…hub.com:gogf/gf into feature/action-1.23

* 'feature/action-1.23' of github.com:gogf/gf:
  feat: version v2.7.3 (#3763)
  perf(util/gconv):  add cache logic to enhance performance (#3673)
  fix(contrib/drivers/pgsql): fix insert error when data struct field has nil in PgSQL (#3679)
  fix(util/gconv): #3731 map type name mismatch in switch case statement (#3732)
  fix(contrib/drivers/pgsql): #3671 fix invalid pgsql insert json type (#3742)
  refactor(nacos-registry): use official nacos sdk instead of the third-party nacos sdk (#3745)

* 'feature/action-1.23' of github.com:gogf/gf:
  feat: version v2.7.3 (#3763)
  perf(util/gconv):  add cache logic to enhance performance (#3673)
  fix(contrib/drivers/pgsql): fix insert error when data struct field has nil in PgSQL (#3679)
  fix(util/gconv): #3731 map type name mismatch in switch case statement (#3732)
  fix(contrib/drivers/pgsql): #3671 fix invalid pgsql insert json type (#3742)
  refactor(nacos-registry): use official nacos sdk instead of the third-party nacos sdk (#3745)
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4 participants