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 examples; 18 19 import com.google.caliper.Benchmark; 20 import java.text.DecimalFormatSymbols; 21 import java.text.NumberFormat; 22 import java.text.SimpleDateFormat; 23 import java.util.Locale; 24 25 /** 26 * Benchmarks creation and cloning various expensive objects. 27 */ 28 @SuppressWarnings({"ResultOfObjectAllocationIgnored"}) // TODO: should fix! 29 public class ExpensiveObjectsBenchmark { 30 @Benchmark void newDecimalFormatSymbols(int reps) { 31 for (int i = 0; i < reps; ++i) { 32 new DecimalFormatSymbols(Locale.US); 33 } 34 } 35 36 @Benchmark void clonedDecimalFormatSymbols(int reps) { 37 DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US); 38 for (int i = 0; i < reps; ++i) { 39 dfs.clone(); 40 } 41 } 42 43 @Benchmark void newNumberFormat(int reps) { 44 for (int i = 0; i < reps; ++i) { 45 NumberFormat.getInstance(Locale.US); 46 } 47 } 48 49 @Benchmark void clonedNumberFormat(int reps) { 50 NumberFormat nf = NumberFormat.getInstance(Locale.US); 51 for (int i = 0; i < reps; ++i) { 52 nf.clone(); 53 } 54 } 55 56 @Benchmark void newSimpleDateFormat(int reps) { 57 for (int i = 0; i < reps; ++i) { 58 new SimpleDateFormat(); 59 } 60 } 61 62 @Benchmark void clonedSimpleDateFormat(int reps) { 63 SimpleDateFormat sdf = new SimpleDateFormat(); 64 for (int i = 0; i < reps; ++i) { 65 sdf.clone(); 66 } 67 } 68 } 69
