高性能java库和热门库的评测pk

高性能java库wast，性能炸裂！

:听说这个java库的性能是很高的？:是的！:有多高？:大概三四楼那么高啦！

github源码地址：
https://github.com/wycst/wast

测试代码地址：
https://github.com/wycst/wast-jmh-test

<dependency>    <groupId>io.github.wycst</groupId>    <artifactId>wast</artifactId>    <version>0.0.3</version></dependency>

测试环境

• 服务器: window10 32g i5 ssd
• ide: idea2020.3

版本信息

• jmh.v1.3.5
• wast.v0.0.3
• fastjson.v1.2.83
• fastjson2.v2.0.6
• jackson.v.2.9.9.3
• spel.v5.3.9
• snakeyaml.v1.29

  8 8 1.35 5.3.9 1.2.83 2.0.6 1.29 2.9.9.3              io.github.wycst     wast     0.0.3       com.alibaba.fastjson2     fastjson2     ${fastjson2.version}       com.alibaba     fastjson     ${fastjson1.version}       com.fasterxml.jackson.core     jackson-databind     ${jackson.version}       org.springframework     spring-expression     ${spring.version}       org.yaml     snakeyaml     ${snakeyaml-version}       org.openjdk.jmh     jmh-core     ${jmh.version}       org.openjdk.jmh     jmh-generator-annprocess     ${jmh.version}     

JSON篇

• 反序列化 - 简单实体bean的解析（ops/ms）

Benchmark    Mode  Cnt     Score    Error   UnitsSimpleBeanTest.fastjson1  thrpt    5   295.223 ± 25.515  ops/msSimpleBeanTest.fastjson2  thrpt    5   785.447 ± 14.362  ops/msSimpleBeanTest.jackson    thrpt    5   474.894 ± 26.205  ops/msSimpleBeanTest.wastjson   thrpt    5  1189.094 ± 60.265  ops/ms

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/SimpleBeanTest.java

测试结果： wastjson >> fastjson2 > jackson > fastjson1

• 反序列化 - 小文本解析测试（ops/ms）

Benchmark Mode  Cnt     Score    Error   UnitsSmallTextParseTest.fastjson1  thrpt    5  1479.282 ± 17.987  ops/msSmallTextParseTest.fastjson2  thrpt    5  2401.221 ± 77.762  ops/msSmallTextParseTest.jackson    thrpt    5  1427.027 ± 54.206  ops/msSmallTextParseTest.wastjson   thrpt    5  2199.300 ± 30.759  ops/ms

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/SmallTextParseTest.java

测试结果： fastjson2 > wastjson > fastjson1 > jackson

• 反序列化 - 中长文本测试(175kb)（ops/s）

Benchmark     Mode  Cnt     Score     Error  UnitsLongTextParseTest.escapeFastjson1 thrpt    5  2403.397 ±  67.258  ops/sLongTextParseTest.escapeFastjson2 thrpt    5  2470.036 ±  41.012  ops/sLongTextParseTest.escapeJackson   thrpt    5  2264.022 ±  63.137  ops/sLongTextParseTest.escapeWastjson  thrpt    5  9946.527 ± 249.772  ops/sLongTextParseTest.escapePrettyFastjson   thrpt    5  2631.821 ±  40.613  ops/sLongTextParseTest.escapePrettyFastjson2  thrpt    5  2433.739 ±  40.984  ops/sLongTextParseTest.escapePrettyJackson    thrpt    5  1568.147 ± 103.349  ops/sLongTextParseTest.escapePrettyWastjson   thrpt    5  9961.827 ± 551.414  ops/sLongTextParseTest.fastjson1thrpt    5  5118.035 ± 112.711  ops/sLongTextParseTest.fastjson2thrpt    5  6850.418 ± 147.904  ops/sLongTextParseTest.jackson  thrpt    5  2936.602 ±  39.819  ops/sLongTextParseTest.wastjson thrpt    5  9468.415 ±  71.767  ops/sLongTextParseTest.prettyFastjson1 thrpt    5  5118.231 ±  31.292  ops/sLongTextParseTest.prettyFastjson2 thrpt    5  6830.779 ±  46.084  ops/sLongTextParseTest.prettyJackson   thrpt    5  2910.411 ±  37.276  ops/sLongTextParseTest.prettyWastjson  thrpt    5  9459.602 ± 210.523  ops/s

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/LongTextParseTest.java

测试结果： wastjson >> fastjson2 > fastjson1 > jackson

• 反序列化 - 中文本测试(515kb)（ops/s）

Benchmark Mode  Cnt    Score    Error  UnitsLongTextParseTest2.fastjson1  thrpt    5  502.565 ±  4.324  ops/sLongTextParseTest2.fastjson2  thrpt    5  528.788 ±  4.027  ops/sLongTextParseTest2.jackson    thrpt    5  596.762 ± 32.091  ops/sLongTextParseTest2.wastjson   thrpt    5  569.860 ±  5.274  ops/s

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/LongTextParseTest2.java

测试结果： jackson > wastjson > fastjson2 > fastjson1

• 反序列化 - 超大长文本测试(180mb)（ops/min）

Benchmark   Mode  Cnt   Score    Error    UnitsSuperLongText.fastjson   thrpt    5  25.945 ± 10.596  ops/minSuperLongText.fastjson2  thrpt    5  20.453 ± 17.898  ops/minSuperLongText.jackson    thrpt    5  21.170 ±  0.432  ops/minSuperLongText.wastjson   thrpt    5  49.315 ± 12.184  ops/min

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/SuperLongText.java

测试结果： wastjson >> fastjson > jackson > fastjson2

• 通过流读取超大长JSON文本测试(180mb)（ops/min）

Benchmark Mode  Cnt   Score    Error    UnitsReadInputStreamTest.jackson   thrpt    5  17.911 ±  3.584  ops/minReadInputStreamTest.wastjson  thrpt    5  27.118 ± 10.143  ops/min

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/ReadInputStreamTest.java

测试结果： wastjson >> jackson
(fastjson完全没法读取超大文本流,退出此轮评测)

• 序列化 - 中长文本（ops/ms）

Benchmark     Mode  Cnt    Score    Error   UnitsWriteTest.escapeFastjson   thrpt    5  248.960 ±  2.526  ops/msWriteTest.escapeFastjson2  thrpt    5  134.715 ±  0.727  ops/msWriteTest.escapeJackson    thrpt    5  285.107 ±  4.332  ops/msWriteTest.escapeWastjson   thrpt    5  365.724 ± 16.478  ops/msWriteTest.fastjson  thrpt    5  528.649 ± 24.377  ops/msWriteTest.fastjson2 thrpt    5  372.189 ±  3.944  ops/msWriteTest.jackson   thrpt    5  329.733 ±  2.537  ops/msWriteTest.wastjson  thrpt    5  571.830 ±  1.658  ops/ms

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/bean/WriteTest.java

测试结果：

常规文本： wastjson > fastjson > fastjson2 > jackson

转义文本： wastjson > jackson > fastjson > fastjson2

• fastjson2新特性JSONPath的pk (ops/ms)

Benchmark   Mode  Cnt     Score    Error   UnitsJSONPathTest.fastjsonReaderAuthors     thrpt    5   454.894 ± 12.225  ops/msJSONPathTest.fastjsonReaderPrices      thrpt    5   455.360 ±  2.692  ops/msJSONPathTest.fastjsonReaderTop2Author  thrpt    5   555.557 ± 23.740  ops/msJSONPathTest.wastAuthors thrpt    5   801.320 ± 56.132  ops/msJSONPathTest.wastPrices  thrpt    5   908.480 ± 26.998  ops/msJSONPathTest.wastTop2Authors    thrpt    5  1451.135 ± 19.843  ops/ms

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/json/path/JSONPathTest.java

测试结果：wastjson(JSONNode) >> fastjson2

表达式引擎

pk对象spel(mvel2, ognl, Fel等库性能和spel差距有点大就不考虑加入评测)

不考虑编译模式（将表达式编译为字节码），没啥价值可比。

Benchmark  Mode  Cnt Score Error  UnitsExpressionTest.spelDirectDynamicExpr  thrpt    5     3636.816 ±    119.516  ops/sExpressionTest.spelDirectStaticExpr   thrpt    5     3647.830 ±    103.602  ops/sExpressionTest.spelParseDynamicExpr   thrpt    5  1638805.101 ± 261375.252  ops/sExpressionTest.wastDirectDynamicExpr  thrpt    5     4519.986 ±    257.351  ops/sExpressionTest.wastDirectStaticExpr   thrpt    5     4563.065 ±     68.228  ops/sExpressionTest.wastParseDynamicExpr   thrpt    5  3172853.345 ± 355515.730  ops/s

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/expression/ExpressionTest.java

测试结果：wast > spel

yaml

pk对象org.snakeyaml库(暂时未发现有其他的yaml库)

Benchmark     Mode  Cnt    Score   Error   UnitsYamlTest.snakeyaml  thrpt    5   26.687 ± 0.832  ops/msYamlTest.wastYaml   thrpt    5  548.392 ± 2.784  ops/ms

测试类: https://github.com/wycst/wast-jmh-test/blob/main/src/main/java/com/jmh/test/yaml/YamlTest.java

测试结果：wast >> spel

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