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Add the benchmarking module [ECR-2383] (#1007)
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‎exonum-java-binding/benchmarks/README.md

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# Exonum Java Benchmarks
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This module contains benchmarks of various Exonum Java components.
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It is configured to use [Java Microbenchmark Harness][jmh-home] (JMH).
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[jmh-home]: https://openjdk.java.net/projects/code-tools/jmh/
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*This module is included in the project for easier prototyping and experimentation.
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It does* not *contain system-level benchmarks of Exonum services, which currently
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reside in an internal project:*
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[exonum/exonum-benchmarking](https://github.com/exonum/exonum-benchmarking)
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Earlier internal micro-benchmarks are
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in [exonum/exonum-java-benchmarks](https://github.com/exonum/exonum-java-benchmarks)
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project.
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## Usage
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Build the `benchmarks.jar` (from [exonum-java-binding](..) directory):
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```
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# Build the benchmarks and the modules it depends upon
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mvn package -pl benchmarks -am
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```
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Get some help:
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```
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java -jar benchmarks/target/benchmarks.jar -h
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```

‎exonum-java-binding/benchmarks/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright (c) 2014, Oracle America, Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Oracle nor the names of its contributors may be used
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to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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-->
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<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">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.exonum.binding</groupId>
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<artifactId>exonum-java-binding-parent</artifactId>
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<version>0.8.0-SNAPSHOT</version>
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</parent>
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<artifactId>exonum-java-benchmarks</artifactId>
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<version>0.8.0-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>Exonum Java: Benchmarks</name>
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<description>Micro-benchmarks of various Exonum Java components.</description>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<jmh.version>1.21</jmh.version>
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<!--
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Name of the benchmark Uber-JAR to generate.
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-->
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<uberjar.name>benchmarks</uberjar.name>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-core</artifactId>
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<version>${jmh.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-generator-annprocess</artifactId>
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<version>${jmh.version}</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-shade-plugin</artifactId>
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<version>3.2.1</version>
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<executions>
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<execution>
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<phase>package</phase>
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<goals>
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<goal>shade</goal>
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</goals>
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<configuration>
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<finalName>${uberjar.name}</finalName>
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<transformers>
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<transformer
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implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
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<mainClass>org.openjdk.jmh.Main</mainClass>
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</transformer>
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</transformers>
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<filters>
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<filter>
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<!--
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Shading signed JARs will fail without this.
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http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar
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-->
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<artifact>*:*</artifact>
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<excludes>
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<exclude>META-INF/*.SF</exclude>
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<exclude>META-INF/*.DSA</exclude>
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<exclude>META-INF/*.RSA</exclude>
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</excludes>
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</filter>
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</filters>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<!-- Skip the deployment of internal module as it is inherited from parent pom -->
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-deploy-plugin</artifactId>
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<configuration>
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<skip>true</skip>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎exonum-java-binding/pom.xml

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<module>testkit</module>
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<module>app</module>
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<module>integration-tests</module>
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<module>benchmarks</module>
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</modules>
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<scm>

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