/*
 * Java Genetic Algorithm Library (@__identifier__@).
 * Copyright (c) @__year__@ Franz Wilhelmstötter
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Author:
 *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmx.at)
 */
package org.jenetics.util;

import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;

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.State;
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;

/**
 * @author <a href="mailto:franz.wilhelmstoetter@gmx.at">Franz Wilhelmstötter</a>
 * @version 3.0 &mdash; <em>$Date: 2014-07-14 $</em>
 * @since 3.0
 */
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class SeqPerf {

	private final int index = ThreadLocalRandom.current().nextInt(1000);

	private final Integer[] array = new Integer[1000];
	{
		for (int i = 0; i < array.length; ++i) {
			array[i] = i;
		}
	}
	private final MSeq<Integer> seq = MSeq.ofLength(1000);
	{
		for (int i = 0; i < seq.length(); ++i) {
			seq.set(i, i);
		}
	}

	@Benchmark
	public Integer getFromArray() {
		return array[index];
	}

	@Benchmark
	public Integer getFromSeq() {
		return seq.get(index);
	}

	public static void main(String[] args) throws RunnerException {
		final Options opt = new OptionsBuilder()
			.include(".*" + SeqPerf.class.getSimpleName() + ".*")
			.warmupIterations(3)
			.measurementIterations(5)
			.threads(1)
			.forks(1)
			.build();

		new Runner(opt).run();
	}

}

@@ -1307,16 +1307,59 @@
 ilder;%0A%0A
+import org.jenetics.internal.util.IntRef;%0A%0A
 /**%0A * @
@@ -1480,17 +1480,17 @@
 014-07-1
-4
+5
  $%3C/em%3E%0A
@@ -2043,54 +2043,472 @@
 lic 
-Integer getFromSeq() %7B%0A%09%09return seq.get(index)
+int forLoopArray() %7B%0A%09%09int sum = 0;%0A%09%09for (int i = 0; i %3C array.length; ++i) %7B%0A%09%09%09sum += array%5Bi%5D;%0A%09%09%7D%0A%09%09return sum;%0A%09%7D%0A%0A%09@Benchmark%0A%09public Integer getFromSeq() %7B%0A%09%09return seq.get(index);%0A%09%7D%0A%0A%09@Benchmark%0A%09public int forLoopSeq() %7B%0A%09%09int sum = 0;%0A%09%09for (int i = 0; i %3C seq.length(); ++i) %7B%0A%09%09%09sum += seq.get(i);%0A%09%09%7D%0A%09%09return 0;%0A%09%7D%0A%0A%09@Benchmark%0A%09public int forEachLoopSeq() %7B%0A%09%09final IntRef sum = new IntRef();%0A%09%09seq.forEach(i -%3E sum.value += i);%0A%09%09return sum.value
 ;%0A%09%7D

Add Seq performance tests.