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Merge branch 'stable-5.3' into stable-5.4 

* stable-5.3:
  Run JMH benchmarks using bazel
  Benchmark for creating files and FileSnapshots
  Implement benchmark for looking up FileStore of a given Path
  JMH benchmark for SimpleLruCache
  Update API problem filters
  Remove unused API problem filters
  Silence API errors for new API added since 5.1.0

Change-Id: Ib735c4039e24ec8b045ae2cc81df1e9e5c9fa996
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
stable-5.4
Matthias Sohn 5 years ago
parent
2fda4d3983 cbdb5e7750
commit
e85664e3f8
23 changed files with 1322 additions and 1 deletions
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  1. 30
      WORKSPACE
  2. 12
      lib/jmh/BUILD
  3. 36
      org.eclipse.jgit.benchmarks/.classpath
  4. 2
      org.eclipse.jgit.benchmarks/.gitignore
  5. 23
      org.eclipse.jgit.benchmarks/.project
  6. 3
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.resources.prefs
  7. 2
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.runtime.prefs
  8. 5
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.apt.core.prefs
  9. 430
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.core.prefs
  10. 66
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.ui.prefs
  11. 4
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.m2e.core.prefs
  12. 3
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.mylyn.tasks.ui.prefs
  13. 2
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.mylyn.team.ui.prefs
  14. 104
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.pde.api.tools.prefs
  15. 2
      org.eclipse.jgit.benchmarks/.settings/org.eclipse.pde.core.prefs
  16. 3
      org.eclipse.jgit.benchmarks/.settings/org.jboss.tools.maven.apt.prefs
  17. 13
      org.eclipse.jgit.benchmarks/BUILD
  18. 195
      org.eclipse.jgit.benchmarks/pom.xml
  19. 111
      org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/CreateFileSnapshotBenchmark.java
  20. 97
      org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/LookupFileStoreBenchmark.java
  21. 112
      org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/SimpleLruCacheBenchmark.java
  22. 2
      pom.xml
  23. 66
      tools/bzl/jmh.bzl

30
WORKSPACE
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@ -22,6 +22,36 @@ load(
"maven_jar",
)
JMH_VERS = "1.21"
maven_jar(
name = "jmh-core",
artifact = "org.openjdk.jmh:jmh-core:" + JMH_VERS,
attach_source = False,
sha1 = "442447101f63074c61063858033fbfde8a076873",
)
maven_jar(
name = "jmh-annotations",
artifact = "org.openjdk.jmh:jmh-generator-annprocess:" + JMH_VERS,
attach_source = False,
sha1 = "7aac374614a8a76cad16b91f1a4419d31a7dcda3",
)
maven_jar(
name = "jopt",
artifact = "net.sf.jopt-simple:jopt-simple:5.0.4",
attach_source = False,
sha1 = "4fdac2fbe92dfad86aa6e9301736f6b4342a3f5c",
)
maven_jar(
name = "math3",
artifact = "org.apache.commons:commons-math3:3.6.1",
attach_source = False,
sha1 = "e4ba98f1d4b3c80ec46392f25e094a6a2e58fcbf",
)
maven_jar(
name = "eddsa",
artifact = "net.i2p.crypto:eddsa:0.3.0",

12
lib/jmh/BUILD
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@ -0,0 +1,12 @@
load("@rules_java//java:defs.bzl", "java_library")
java_library(
name = "jmh",
visibility = ["//visibility:public"],
exports = [
"@jmh-annotations//jar",
"@jmh-core//jar",
"@jopt//jar",
"@math3//jar",
],
)

36
org.eclipse.jgit.benchmarks/.classpath
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@ -0,0 +1,36 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes" path="src">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" path=".apt_generated">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
<attribute name="ignore_optional_problems" value="true"/>
<attribute name="m2e-apt" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="target/generated-test-sources/test-annotations">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
<attribute name="ignore_optional_problems" value="true"/>
<attribute name="m2e-apt" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="target/classes"/>
</classpath>

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

23
org.eclipse.jgit.benchmarks/.project
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@ -0,0 +1,23 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>org.eclipse.jgit.benchmarks</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>

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

2
org.eclipse.jgit.benchmarks/.settings/org.eclipse.core.runtime.prefs
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@ -0,0 +1,2 @@
eclipse.preferences.version=1
line.separator=\n

5
org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.apt.core.prefs
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@ -0,0 +1,5 @@
eclipse.preferences.version=1
org.eclipse.jdt.apt.aptEnabled=true
org.eclipse.jdt.apt.genSrcDir=.apt_generated
org.eclipse.jdt.apt.genTestSrcDir=target/generated-test-sources/test-annotations
org.eclipse.jdt.apt.reconcileEnabled=true

430
org.eclipse.jgit.benchmarks/.settings/org.eclipse.jdt.core.prefs
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@ -0,0 +1,430 @@
eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.annotation.nonnullbydefault=org.eclipse.jdt.annotation.NonNullByDefault
org.eclipse.jdt.core.compiler.annotation.nonnullbydefault.secondary=
org.eclipse.jdt.core.compiler.annotation.nullable=org.eclipse.jdt.annotation.Nullable
org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.8
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CONSTRUCTOR_ELEMENT_TYPE_CHANGED_VARARGS_TO_ARRAY=Error
CONSTRUCTOR_ELEMENT_TYPE_REMOVED_TYPE_PARAMETER=Error
ENUM_ELEMENT_TYPE_CHANGED_CONTRACTED_SUPERINTERFACES_SET=Error
ENUM_ELEMENT_TYPE_CHANGED_TYPE_CONVERSION=Error
ENUM_ELEMENT_TYPE_REMOVED_ENUM_CONSTANT=Error
ENUM_ELEMENT_TYPE_REMOVED_FIELD=Error
ENUM_ELEMENT_TYPE_REMOVED_METHOD=Error
ENUM_ELEMENT_TYPE_REMOVED_TYPE_MEMBER=Error
FIELD_ELEMENT_TYPE_ADDED_VALUE=Error
FIELD_ELEMENT_TYPE_CHANGED_DECREASE_ACCESS=Error
FIELD_ELEMENT_TYPE_CHANGED_FINAL_TO_NON_FINAL_STATIC_CONSTANT=Error
FIELD_ELEMENT_TYPE_CHANGED_NON_FINAL_TO_FINAL=Error
FIELD_ELEMENT_TYPE_CHANGED_NON_STATIC_TO_STATIC=Error
FIELD_ELEMENT_TYPE_CHANGED_STATIC_TO_NON_STATIC=Error
FIELD_ELEMENT_TYPE_CHANGED_TYPE=Error
FIELD_ELEMENT_TYPE_CHANGED_VALUE=Error
FIELD_ELEMENT_TYPE_REMOVED_TYPE_ARGUMENT=Error
FIELD_ELEMENT_TYPE_REMOVED_VALUE=Error
ILLEGAL_EXTEND=Warning
ILLEGAL_IMPLEMENT=Warning
ILLEGAL_INSTANTIATE=Warning
ILLEGAL_OVERRIDE=Warning
ILLEGAL_REFERENCE=Warning
INTERFACE_ELEMENT_TYPE_ADDED_DEFAULT_METHOD=Error
INTERFACE_ELEMENT_TYPE_ADDED_FIELD=Error
INTERFACE_ELEMENT_TYPE_ADDED_METHOD=Error
INTERFACE_ELEMENT_TYPE_ADDED_RESTRICTIONS=Error
INTERFACE_ELEMENT_TYPE_ADDED_SUPER_INTERFACE_WITH_METHODS=Error
INTERFACE_ELEMENT_TYPE_ADDED_TYPE_PARAMETER=Error
INTERFACE_ELEMENT_TYPE_CHANGED_CONTRACTED_SUPERINTERFACES_SET=Error
INTERFACE_ELEMENT_TYPE_CHANGED_TYPE_CONVERSION=Error
INTERFACE_ELEMENT_TYPE_REMOVED_FIELD=Error
INTERFACE_ELEMENT_TYPE_REMOVED_METHOD=Error
INTERFACE_ELEMENT_TYPE_REMOVED_TYPE_MEMBER=Error
INTERFACE_ELEMENT_TYPE_REMOVED_TYPE_PARAMETER=Error
INVALID_ANNOTATION=Ignore
INVALID_JAVADOC_TAG=Ignore
INVALID_REFERENCE_IN_SYSTEM_LIBRARIES=Error
LEAK_EXTEND=Warning
LEAK_FIELD_DECL=Warning
LEAK_IMPLEMENT=Warning
LEAK_METHOD_PARAM=Warning
LEAK_METHOD_RETURN_TYPE=Warning
METHOD_ELEMENT_TYPE_ADDED_RESTRICTIONS=Error
METHOD_ELEMENT_TYPE_ADDED_TYPE_PARAMETER=Error
METHOD_ELEMENT_TYPE_CHANGED_DECREASE_ACCESS=Error
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
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@ -0,0 +1,2 @@
eclipse.preferences.version=1
resolve.requirebundle=false

3
org.eclipse.jgit.benchmarks/.settings/org.jboss.tools.maven.apt.prefs
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eclipse.preferences.version=1
org.jboss.tools.maven.apt.aptProcessDuringReconcile=true
org.jboss.tools.maven.apt.mode=jdt_apt

13
org.eclipse.jgit.benchmarks/BUILD
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load("//tools:bzl/jmh.bzl", "jmh_java_benchmarks")
SRCS = glob(
["src/**/*.java"],
)
jmh_java_benchmarks(
name = "benchmarks",
srcs = SRCS,
deps = [
"//org.eclipse.jgit:jgit",
],
)

195
org.eclipse.jgit.benchmarks/pom.xml
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<?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>5.4.4-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>

111
org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/CreateFileSnapshotBenchmark.java
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/*
* 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.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.internal.storage.file.FileSnapshot;
import org.eclipse.jgit.util.FileUtils;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Measurement;
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.annotations.Warmup;
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.Thread)
public class CreateFileSnapshotBenchmark {
Path path;
Path testDir;
@Setup
public void setupBenchmark() throws IOException {
testDir = Files.createTempDirectory("dir");
path = testDir.resolve("toSnapshot");
Files.createFile(path);
}
@TearDown
public void teardown() throws IOException {
FileUtils.delete(testDir.toFile(), FileUtils.RECURSIVE | FileUtils.RETRY);
}
@Benchmark
@BenchmarkMode({ Mode.AverageTime })
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 5, time = 100, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 5, time = 100, timeUnit = TimeUnit.MILLISECONDS)
public Path testCreateFile() throws IOException {
return Files.createTempFile(testDir, "create", "");
}
@Benchmark
@BenchmarkMode({ Mode.AverageTime })
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public FileSnapshot testCreateFileSnapshot() {
return FileSnapshot.save(path.toFile());
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(CreateFileSnapshotBenchmark.class.getSimpleName())
// .addProfiler(StackProfiler.class)
// .addProfiler(GCProfiler.class)
.forks(1).jvmArgs("-ea").build();
new Runner(opt).run();
}
}

97
org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/LookupFileStoreBenchmark.java
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/*
* 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.io.IOException;
import java.nio.file.FileStore;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.util.FileUtils;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
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.profile.StackProfiler;
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.Thread)
public class LookupFileStoreBenchmark {
Path path;
@Setup
public void setupBenchmark() throws IOException {
path = Files.createTempFile("test", "x");
}
@TearDown
public void teardown() throws IOException {
FileUtils.delete(path.toFile(), FileUtils.RETRY);
}
@Benchmark
@BenchmarkMode({ Mode.AverageTime })
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public FileStore testLookupFileStore() throws IOException {
FileStore fs = Files.getFileStore(path);
return fs;
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(LookupFileStoreBenchmark.class.getSimpleName())
.addProfiler(StackProfiler.class)
// .addProfiler(GCProfiler.class)
.forks(1).jvmArgs("-ea").build();
new Runner(opt).run();
}
}

112
org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/SimpleLruCacheBenchmark.java
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/*
* 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();
}
}

2
pom.xml
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@ -1037,8 +1037,8 @@
<module>org.eclipse.jgit.lfs.test</module>
<module>org.eclipse.jgit.lfs.server.test</module>
<module>org.eclipse.jgit.ssh.apache.test</module>
<module>org.eclipse.jgit.coverage</module>
<module>org.eclipse.jgit.benchmarks</module>
</modules>
</project>

66
tools/bzl/jmh.bzl
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# 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.
# Definitions to run jmh microbenchmarks
def jmh_java_benchmarks(name, srcs, deps = [], tags = [], plugins = [], **kwargs):
"""Builds runnable JMH benchmarks.
This rule builds a runnable target for one or more JMH benchmarks
specified as srcs. It takes the same arguments as java_binary,
except for main_class.
"""
plugin_name = "_{}_jmh_annotation_processor".format(name)
native.java_plugin(
name = plugin_name,
deps = ["//lib/jmh:jmh"],
processor_class = "org.openjdk.jmh.generators.BenchmarkProcessor",
visibility = ["//visibility:private"],
tags = tags,
)
native.java_binary(
name = name,
srcs = srcs,
main_class = "org.openjdk.jmh.Main",
deps = deps + ["//lib/jmh:jmh"],
plugins = plugins + [plugin_name],
tags = tags,
**kwargs
)
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