[APROF-82] JMH benchmarks module with simple microbenchmarks to measu…

…re aprof performance impact

benchmark/pom.xml

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+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+		 xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>com.devexperts.aprof</groupId>
+		<artifactId>aprof</artifactId>
+		<version>27-SNAPSHOT</version>
+	</parent>
+	<artifactId>benchmark</artifactId>
+	<version>27-SNAPSHOT</version>
+	<name>JMH benchmarks</name>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.openjdk.jmh</groupId>
+			<artifactId>jmh-core</artifactId>
+			<version>0.3.1</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-shade-plugin</artifactId>
+				<version>2.0</version>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<finalName>microbenchmarks</finalName>
+							<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/services/javax.annotation.processing.Processor</exclude>
+									</excludes>
+								</filter>
+							</filters>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

benchmark/src/main/java/com/devexperts/aprof/benchmark/Benchmark.java

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+/*
+ * Aprof - Java Memory Allocation Profiler
+ * Copyright (C) 2002-2014  Devexperts LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.devexperts.aprof.benchmark;
+
+import org.openjdk.jmh.annotations.GenerateMicroBenchmark;
+
+public class Benchmark {
+	@GenerateMicroBenchmark
+	public Box testNew() {
+		return newBox();
+	}
+
+	@GenerateMicroBenchmark
+	public int testEscapeAnalysis() {
+		return newBox().getValue();
+	}
+
+	private static Box newBox() {
+		return new Box(1);
+	}
+
+	private static class Box {
+		private int value;
+
+		Box(int value) {
+			this.value = value;
+		}
+
+		private int getValue() {
+			return value;
+		}
+	}
+}