85 lines
2.2 KiB
Java
85 lines
2.2 KiB
Java
/*
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* Copyright (C) 2010 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.base;
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import com.google.caliper.Benchmark;
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/**
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* Some microbenchmarks for the {@link com.google.common.base.Objects} class.
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*
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* @author Ben L. Titzer
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*/
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public class ObjectsBenchmark {
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private static final Integer I0 = -45;
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private static final Integer I1 = -1;
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private static final Integer I2 = 3;
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private static final String S0 = "3";
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private static final String S1 = "Ninety five";
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private static final String S2 = "44 one million";
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private static final String S3 = "Lowly laundry lefties";
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private static final String S4 = "89273487U#*&#";
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private static final Double D0 = 9.234d;
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private static final Double D1 = -1.2e55;
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@Benchmark
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int hashString_2(int reps) {
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int dummy = 0;
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for (int i = 0; i < reps; i++) {
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dummy += Objects.hashCode(S0, S1);
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}
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return dummy;
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}
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@Benchmark
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int hashString_3(int reps) {
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int dummy = 0;
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for (int i = 0; i < reps; i++) {
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dummy += Objects.hashCode(S0, S1, S2);
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}
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return dummy;
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}
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@Benchmark
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int hashString_4(int reps) {
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int dummy = 0;
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for (int i = 0; i < reps; i++) {
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dummy += Objects.hashCode(S0, S1, S2, S3);
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}
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return dummy;
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}
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@Benchmark
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int hashString_5(int reps) {
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int dummy = 0;
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for (int i = 0; i < reps; i++) {
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dummy += Objects.hashCode(S0, S1, S2, S3, S4);
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}
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return dummy;
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}
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@Benchmark
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int hashMixed_5(int reps) {
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int dummy = 0;
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for (int i = 0; i < reps; i++) {
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dummy += Objects.hashCode(I2, S1, D1, S2, I0);
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dummy += Objects.hashCode(D0, I1, S3, I2, S0);
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}
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return dummy;
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}
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}
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