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JMH benchmark for SimpleLruCache

See [1] for JMH documentation and [2] how to use JMH in Eclipse.

The benchmarks pom currently cannot use the JGit parent pom due to an
ecj bug [3] regarding annotation processing. Hence for now do not
inherit from the JGit parent pom and copy the compiler plugin
configuration for javac from the parent pom.

After running the Maven build the benchmark can be run using Maven:

$ java -jar org.eclipse.jgit.benchmarks/target/benchmarks.jar

or in Eclipse by running the main method of the SimpleLruCacheBenchmark
class.

[1] https://openjdk.java.net/projects/code-tools/jmh/
[2] http://alblue.bandlem.com/Page/3/index.html
[3] https://eclip.se/532029

CQ: 20517
CQ: 20518
Change-Id: Idca8a9e0980f0b8a9c741c4c9e97d03c62f07c8d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
stable-5.1
Matthias Sohn 5 years ago
parent
commit
9a638b08d3
  1. 36
      org.eclipse.jgit.benchmarks/.classpath
  2. 2
      org.eclipse.jgit.benchmarks/.gitignore
  3. 23
      org.eclipse.jgit.benchmarks/.project
  4. 3
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.resources.prefs
  5. 2
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.runtime.prefs
  6. 5
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.apt.core.prefs
  7. 430
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.core.prefs
  8. 66
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.ui.prefs
  9. 4
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.m2e.core.prefs
  10. 3
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.mylyn.tasks.ui.prefs
  11. 2
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  12. 104
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.pde.api.tools.prefs
  13. 2
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  14. 3
      org.eclipse.jgit.benchmarks/.settings/org.jboss.tools.maven.apt.prefs
  15. 195
      org.eclipse.jgit.benchmarks/pom.xml
  16. 112
      org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/SimpleLruCacheBenchmark.java
  17. 1
      pom.xml

36
org.eclipse.jgit.benchmarks/.classpath

@ -0,0 +1,36 @@
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2
org.eclipse.jgit.benchmarks/.gitignore vendored

@ -0,0 +1,2 @@
/target/
/.apt_generated/

23
org.eclipse.jgit.benchmarks/.project

@ -0,0 +1,23 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>org.eclipse.jgit.benchmarks</name>
<comment></comment>
<projects>
</projects>
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<buildCommand>
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3
org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.resources.prefs

@ -0,0 +1,3 @@
eclipse.preferences.version=1
encoding/<project>=UTF-8
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2
org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.runtime.prefs

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5
org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.apt.core.prefs

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430
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66
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4
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3
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2
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104
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METHOD_ELEMENT_TYPE_CHANGED_NON_ABSTRACT_TO_ABSTRACT=Error
METHOD_ELEMENT_TYPE_CHANGED_NON_FINAL_TO_FINAL=Error
METHOD_ELEMENT_TYPE_CHANGED_NON_STATIC_TO_STATIC=Error
METHOD_ELEMENT_TYPE_CHANGED_STATIC_TO_NON_STATIC=Error
METHOD_ELEMENT_TYPE_CHANGED_VARARGS_TO_ARRAY=Error
METHOD_ELEMENT_TYPE_REMOVED_ANNOTATION_DEFAULT_VALUE=Error
METHOD_ELEMENT_TYPE_REMOVED_TYPE_PARAMETER=Error
MISSING_EE_DESCRIPTIONS=Warning
TYPE_PARAMETER_ELEMENT_TYPE_ADDED_CLASS_BOUND=Error
TYPE_PARAMETER_ELEMENT_TYPE_ADDED_INTERFACE_BOUND=Error
TYPE_PARAMETER_ELEMENT_TYPE_CHANGED_CLASS_BOUND=Error
TYPE_PARAMETER_ELEMENT_TYPE_CHANGED_INTERFACE_BOUND=Error
TYPE_PARAMETER_ELEMENT_TYPE_REMOVED_CLASS_BOUND=Error
TYPE_PARAMETER_ELEMENT_TYPE_REMOVED_INTERFACE_BOUND=Error
UNUSED_PROBLEM_FILTERS=Warning
automatically_removed_unused_problem_filters=false
changed_execution_env=Error
eclipse.preferences.version=1
incompatible_api_component_version=Error
incompatible_api_component_version_include_major_without_breaking_change=Disabled
incompatible_api_component_version_include_minor_without_api_change=Disabled
incompatible_api_component_version_report_major_without_breaking_change=Warning
incompatible_api_component_version_report_minor_without_api_change=Ignore
invalid_since_tag_version=Error
malformed_since_tag=Error
missing_since_tag=Error
report_api_breakage_when_major_version_incremented=Disabled
report_resolution_errors_api_component=Warning

2
org.eclipse.jgit.benchmarks/.settings/org.eclipse.pde.core.prefs

@ -0,0 +1,2 @@
eclipse.preferences.version=1
resolve.requirebundle=false

3
org.eclipse.jgit.benchmarks/.settings/org.jboss.tools.maven.apt.prefs

@ -0,0 +1,3 @@
eclipse.preferences.version=1
org.jboss.tools.maven.apt.aptProcessDuringReconcile=true
org.jboss.tools.maven.apt.mode=jdt_apt

195
org.eclipse.jgit.benchmarks/pom.xml

@ -0,0 +1,195 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2019, Matthias Sohn <matthias.sohn@sap.com>
and other copyright owners as documented in the project's IP log.
This program and the accompanying materials are made available
under the terms of the Eclipse Distribution License v1.0 which
accompanies this distribution, is reproduced below, and is
available at http://www.eclipse.org/org/documents/edl-v10.php
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
- Neither the name of the Eclipse Foundation, Inc. nor the
names of its contributors may be used to endorse or promote
products derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-->
<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>org.eclipse.jgit</groupId>
<version>5.1.13-SNAPSHOT</version>
<artifactId>org.eclipse.jgit.benchmarks</artifactId>
<packaging>jar</packaging>
<name>JGit - JMH based benchmarks</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<javac.target>1.8</javac.target>
<jmh.version>1.21</jmh.version>
<uberjar.name>benchmarks</uberjar.name>
</properties>
<dependencies>
<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>
<dependency>
<groupId>org.eclipse.jgit</groupId>
<artifactId>org.eclipse.jgit</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<compilerVersion>${javac.target}</compilerVersion>
<source>${javac.target}</source>
<target>${javac.target}</target>
<generatedSourcesDirectory>.apt_generated</generatedSourcesDirectory>
</configuration>
<executions>
<execution>
<id>compile-with-errorprone</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<compilerId>javac-with-errorprone</compilerId>
<forceJavacCompilerUse>true</forceJavacCompilerUse>
<compilerArgs>
<arg>-Xep:ExpectedExceptionChecker:ERROR</arg>
</compilerArgs>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-compiler-javac</artifactId>
<version>2.8.5</version>
</dependency>
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-compiler-javac-errorprone</artifactId>
<version>2.8.5</version>
</dependency>
<!-- override plexus-compiler-javac-errorprone's dependency on
Error Prone with the latest version -->
<dependency>
<groupId>com.google.errorprone</groupId>
<artifactId>error_prone_core</artifactId>
<version>2.3.3</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>${uberjar.name}</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
<filters>
<filter>
<!--
Shading signed JARs will fail without this.
http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar
-->
<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>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings only.
It has no influence on the Maven build itself.-->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<versionRange>[1.8,)</versionRange>
<goals>
<goal>run</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

112
org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/SimpleLruCacheBenchmark.java

@ -0,0 +1,112 @@
/*
* Copyright (C) 2019, Matthias Sohn <matthias.sohn@sap.com>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.benchmarks;
import java.security.SecureRandom;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.util.SimpleLruCache;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Group;
import org.openjdk.jmh.annotations.GroupThreads;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.TearDown;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
@State(Scope.Benchmark)
public class SimpleLruCacheBenchmark {
SecureRandom rnd = new SecureRandom();
private volatile SimpleLruCache<String, String> cache = new SimpleLruCache<>(
100, 0.2f);
private volatile int i;
@Setup
public void setupBenchmark() {
i = rnd.nextInt(250);
}
@TearDown
public void teardown() {
cache = null;
}
@Benchmark
@Group("readwrite")
@GroupThreads(1)
@BenchmarkMode({ Mode.AverageTime })
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public SimpleLruCache<String, String> testCacheWrite() {
cache.put("k" + i, "v" + i);
return cache;
}
@Benchmark
@Group("readwrite")
@GroupThreads(1)
@BenchmarkMode({ Mode.AverageTime })
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public SimpleLruCache<String, String> testCacheRead() {
cache.get("k" + i);
return cache;
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(SimpleLruCacheBenchmark.class.getSimpleName())
// .addProfiler(StackProfiler.class)
// .addProfiler(GCProfiler.class)
.forks(1).jvmArgs("-ea").build();
new Runner(opt).run();
}
}

1
pom.xml

@ -964,6 +964,7 @@
<module>org.eclipse.jgit.pgm.test</module>
<module>org.eclipse.jgit.lfs.test</module>
<module>org.eclipse.jgit.lfs.server.test</module>
<module>org.eclipse.jgit.benchmarks</module>
</modules>
</project>

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