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/*
* Copyright (C) 2009 Google Inc.
*
* 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.
*/
package examples;
import com.google.caliper.Param;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
import java.util.AbstractList;
import java.util.List;
/**
* Measures iterating through list elements.
*/
public class ListIterationBenchmark extends SimpleBenchmark {
@Param({"0", "10", "100", "1000"})
private int length;
private List<Object> list;
private Object[] array;
@Override protected void setUp() {
array = new Object[length];
for (int i = 0; i < length; i++) {
array[i] = new Object();
}
list = new AbstractList<Object>() {
@Override public int size() {
return length;
}
@Override public Object get(int i) {
return array[i];
}
};
}
@SuppressWarnings({"UnusedDeclaration"}) // TODO: fix
public void timeListIteration(int reps) {
for (int i = 0; i < reps; i++) {
for (Object value : list) {
}
}
}
@SuppressWarnings({"UnusedDeclaration"}) // TODO: fix
public void timeArrayIteration(int reps) {
for (int i = 0; i < reps; i++) {
for (Object value : array) {
}
}
}
// TODO: remove this from all examples when IDE plugins are ready
public static void main(String[] args) throws Exception {
Runner.main(ListIterationBenchmark.class, args);
}
}
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