Created
October 21, 2015 08:27
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Adam Bien JSON Parser Benchmark
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| mvn clean package && java -jar target/jmh-abien-json-1.0-SNAPSHOT.jar -f 1 |
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| package com.innoq; | |
| import java.util.Map; | |
| import javax.script.ScriptEngine; | |
| import javax.script.ScriptEngineManager; | |
| import com.fasterxml.jackson.databind.ObjectMapper; | |
| import org.openjdk.jmh.annotations.Benchmark; | |
| import org.openjdk.jmh.annotations.Scope; | |
| import org.openjdk.jmh.annotations.Setup; | |
| import org.openjdk.jmh.annotations.State; | |
| @State(Scope.Benchmark) | |
| public class MyBenchmark { | |
| private ScriptEngine engine; | |
| private ObjectMapper mapper; | |
| private String json; | |
| @Setup | |
| public void setUp() throws Exception { | |
| engine = new ScriptEngineManager().getEngineByName("javascript"); | |
| mapper = new ObjectMapper(); | |
| json = "{ \"foo\": \"bar\", \"bar\": 1 }"; | |
| } | |
| @Benchmark | |
| public Object nashorn() throws Exception { | |
| Map<String, Object> map = (Map<String, Object>) engine.eval("Java.asJSONCompatible(" + json + ")"); | |
| return map.get("foo"); | |
| } | |
| @Benchmark | |
| public Object jackson() throws Exception { | |
| Map<String, Object> map = mapper.readValue(json, Map.class); | |
| return map.get("foo"); | |
| } | |
| } |
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | |
| <modelVersion>4.0.0</modelVersion> | |
| <groupId>com.innoq</groupId> | |
| <artifactId>jmh-abien-json</artifactId> | |
| <version>1.0-SNAPSHOT</version> | |
| <properties> | |
| <encoding>UTF-8</encoding> | |
| <maven.compiler.source>1.8</maven.compiler.source> | |
| <maven.compiler.target>1.8</maven.compiler.target> | |
| <jackson.version>2.6.3</jackson.version> | |
| <jmh.version>1.11.1</jmh.version> | |
| </properties> | |
| <dependencies> | |
| <dependency> | |
| <groupId>com.fasterxml.jackson.core</groupId> | |
| <artifactId>jackson-databind</artifactId> | |
| <version>${jackson.version}</version> | |
| </dependency> | |
| <dependency> | |
| <groupId>org.openjdk.jmh</groupId> | |
| <artifactId>jmh-core</artifactId> | |
| <version>${jmh.version}</version> | |
| </dependency> | |
| <dependency> | |
| <groupId>org.openjdk.jmh</groupId> | |
| <artifactId>jmh-generator-annprocess</artifactId> | |
| <version>${jmh.version}</version> | |
| <scope>provided</scope> | |
| </dependency> | |
| </dependencies> | |
| <build> | |
| <plugins> | |
| <plugin> | |
| <groupId>org.apache.maven.plugins</groupId> | |
| <artifactId>maven-shade-plugin</artifactId> | |
| <version>2.2</version> | |
| <executions> | |
| <execution> | |
| <phase>package</phase> | |
| <goals> | |
| <goal>shade</goal> | |
| </goals> | |
| <configuration> | |
| <transformers> | |
| <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> | |
| <mainClass>org.openjdk.jmh.Main</mainClass> | |
| </transformer> | |
| </transformers> | |
| <filters> | |
| <filter> | |
| <artifact>*:*</artifact> | |
| <excludes> | |
| <exclude>META-INF/*.SF</exclude> | |
| <exclude>META-INF/*.DSA</exclude> | |
| <exclude>META-INF/*.RSA</exclude> | |
| </excludes> | |
| </filter> | |
| </filters> | |
| </configuration> | |
| </execution> | |
| </executions> | |
| </plugin> | |
| </plugins> | |
| </build> | |
| </project> |
Interesting.
What about memory consumption? How does that compare?
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My results: