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/*
* Copyright (C) 2010 The Guava Authors
*
* 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 com.google.common.base;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
import com.google.common.base.Objects;
/**
* Some microbenchmarks for the {@link Objects} class.
*
* @author Ben L. Titzer
*/
public class ObjectsBenchmark extends SimpleBenchmark {
private static final Integer I0 = -45;
private static final Integer I1 = -1;
private static final Integer I2 = 3;
private static final String S0 = "3";
private static final String S1 = "Ninety five";
private static final String S2 = "44 one million";
private static final String S3 = "Lowly laundry lefties";
private static final String S4 = "89273487U#*&#";
private static final Double D0 = 9.234d;
private static final Double D1 = -1.2e55;
public int timeHashString_2(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
dummy += Objects.hashCode(S0, S1);
}
return dummy;
}
public int timeHashString_3(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
dummy += Objects.hashCode(S0, S1, S2);
}
return dummy;
}
public int timeHashString_4(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
dummy += Objects.hashCode(S0, S1, S2, S3);
}
return dummy;
}
public int timeHashString_5(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
dummy += Objects.hashCode(S0, S1, S2, S3, S4);
}
return dummy;
}
public int timeHashMixed_5(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
dummy += Objects.hashCode(I2, S1, D1, S2, I0);
dummy += Objects.hashCode(D0, I1, S3, I2, S0);
}
return dummy;
}
public static void main(String[] args) {
Runner.main(ObjectsBenchmark.class, args);
}
}
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