1 /* 2 * Copyright (C) 2009 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package benchmarks.regression; 18 19 import com.google.caliper.Runner; 20 import com.google.caliper.SimpleBenchmark; 21 import java.util.Formatter; 22 import java.util.Locale; 23 24 /** 25 * Compares Formatter against hand-written StringBuilder code. 26 */ 27 public class FormatterBenchmark extends SimpleBenchmark { 28 public void timeFormatter_NoFormatting(int reps) { 29 for (int i = 0; i < reps; i++) { 30 Formatter f = new Formatter(); 31 f.format("this is a reasonably short string that doesn't actually need any formatting"); 32 } 33 } 34 35 public void timeStringBuilder_NoFormatting(int reps) { 36 for (int i = 0; i < reps; i++) { 37 StringBuilder sb = new StringBuilder(); 38 sb.append("this is a reasonably short string that doesn't actually need any formatting"); 39 } 40 } 41 42 public void timeFormatter_OneInt(int reps) { 43 Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 44 for (int i = 0; i < reps; i++) { 45 Formatter f = new Formatter(); 46 f.format("this is a reasonably short string that has an int %d in it", value); 47 } 48 } 49 50 public void timeFormatter_OneIntArabic(int reps) { 51 Locale arabic = new Locale("ar"); 52 Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 53 for (int i = 0; i < reps; i++) { 54 Formatter f = new Formatter(); 55 f.format(arabic, "this is a reasonably short string that has an int %d in it", value); 56 } 57 } 58 59 public void timeStringBuilder_OneInt(int reps) { 60 for (int i = 0; i < reps; i++) { 61 StringBuilder sb = new StringBuilder(); 62 sb.append("this is a reasonably short string that has an int "); 63 sb.append(1024); 64 sb.append(" in it"); 65 } 66 } 67 68 public void timeFormatter_OneHexInt(int reps) { 69 Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 70 for (int i = 0; i < reps; i++) { 71 Formatter f = new Formatter(); 72 f.format("this is a reasonably short string that has an int %x in it", value); 73 } 74 } 75 76 public void timeStringBuilder_OneHexInt(int reps) { 77 for (int i = 0; i < reps; i++) { 78 StringBuilder sb = new StringBuilder(); 79 sb.append("this is a reasonably short string that has an int "); 80 sb.append(Integer.toHexString(1024)); 81 sb.append(" in it"); 82 } 83 } 84 85 public void timeFormatter_OneFloat(int reps) { 86 Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 87 for (int i = 0; i < reps; i++) { 88 Formatter f = new Formatter(); 89 f.format("this is a reasonably short string that has a float %f in it", value); 90 } 91 } 92 93 public void timeFormatter_OneFloat_dot2f(int reps) { 94 Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 95 for (int i = 0; i < reps; i++) { 96 Formatter f = new Formatter(); 97 f.format("this is a reasonably short string that has a float %.2f in it", value); 98 } 99 } 100 101 public void timeFormatter_TwoFloats(int reps) { 102 Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 103 for (int i = 0; i < reps; i++) { 104 Formatter f = new Formatter(); 105 f.format("this is a reasonably short string that has two floats %f and %f in it", value, value); 106 } 107 } 108 109 public void timeStringBuilder_OneFloat(int reps) { 110 for (int i = 0; i < reps; i++) { 111 StringBuilder sb = new StringBuilder(); 112 sb.append("this is a reasonably short string that has a float "); 113 sb.append(10.24f); 114 sb.append(" in it"); 115 } 116 } 117 118 public void timeFormatter_OneString(int reps) { 119 for (int i = 0; i < reps; i++) { 120 Formatter f = new Formatter(); 121 f.format("this is a reasonably short string that has a string %s in it", "hello"); 122 } 123 } 124 125 public void timeStringBuilder_OneString(int reps) { 126 for (int i = 0; i < reps; i++) { 127 StringBuilder sb = new StringBuilder(); 128 sb.append("this is a reasonably short string that has a string "); 129 sb.append("hello"); 130 sb.append(" in it"); 131 } 132 } 133 } 134
