JUL vs SLF4J

_Results.txt

Benchmark                  Mode  Cnt           Score          Error  Units
JULPerf.formatedString    thrpt    5  1170537073.077 ± 11865469.257  ops/s
JULPerf.plainString       thrpt    5  1168436191.354 ± 16765957.090  ops/s
SLF4JPerf.formatedString  thrpt    5  1634403249.682 ± 89411732.491  ops/s
SLF4JPerf.plainString     thrpt    5  1597299776.636 ± 58139073.685  ops/s

JULPerf.java

package com.teragrep.jmh_01;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Mode;

import java.util.logging.*;

public class JULPerf {
    private static final Logger logger = Logger.getLogger(JULPerf.class.getName());

    private static final String privateStaticFinalString = "<private static final String>";

    @Benchmark
    @Fork(value = 1, warmups = 1)
    @BenchmarkMode(Mode.Throughput)
    public void plainString() {
        logger.log(Level.FINEST, "JULPerf__");
    }

    @Benchmark
    @Fork(value = 1, warmups = 1)
    @BenchmarkMode(Mode.Throughput)
    public void formatedString() {
        logger.log(Level.FINEST, "JULPerf__ {0}", privateStaticFinalString);
    }
}

Main.java

package com.teragrep.jmh_01;

public class Main {
    public static void main(String[] args) throws Exception {
        org.openjdk.jmh.Main.main(args);
    }
}

pom.xml

<?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">
    <packaging>jar</packaging>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.teragrep</groupId>
    <artifactId>jmh_01</artifactId>
    <version>${revision}${sha1}${changelist}</version>
    <name>jmh_01</name>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <revision>0.0.1</revision>
        <changelist>-SNAPSHOT</changelist>
        <sha1/>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.openjdk.jmh</groupId>
            <artifactId>jmh-core</artifactId>
            <version>1.35</version>
        </dependency>
        <dependency>
            <groupId>org.openjdk.jmh</groupId>
            <artifactId>jmh-generator-annprocess</artifactId>
            <version>1.35</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>2.0.6</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>2.0.6</version>
        </dependency>
    </dependencies>


    <build>
        <directory>${project.basedir}/target</directory>
        <finalName>jmh_01</finalName>
        <plugins>
            <plugin>
                <artifactId>maven-shade-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.teragrep.jmh_01.Main
                                    </mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.2</version>
                <configuration>
                    <parallel>all</parallel>
                    <useUnlimitedThreads>true</useUnlimitedThreads>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <version>2.8.2</version>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>flatten-maven-plugin</artifactId>
                <version>1.1.0</version>
                <configuration>
                    <updatePomFile>true</updatePomFile>
                    <flattenMode>resolveCiFriendliesOnly</flattenMode>
                </configuration>
                <executions>
                    <execution>
                        <id>flatten</id>
                        <phase>process-resources</phase>
                        <goals>
                            <goal>flatten</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>flatten.clean</id>
                        <phase>clean</phase>
                        <goals>
                            <goal>clean</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

SLF4JPerf.java

package com.teragrep.jmh_01;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Mode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SLF4JPerf {
    private static final Logger LOGGER = LoggerFactory.getLogger(SLF4JPerf.class);

    private static final String privateStaticFinalString = "<private static final String>";
    @Benchmark
    @Fork(value = 1, warmups = 1)
    @BenchmarkMode(Mode.Throughput)
    public void plainString() {
        LOGGER.trace("SLF4JPerf");
    }

    @Benchmark
    @Fork(value = 1, warmups = 1)
    @BenchmarkMode(Mode.Throughput)
    public void formatedString() {
        LOGGER.trace("SLF4JPerf {}", privateStaticFinalString);
    }
}