197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes/* 297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Copyright (C) 2009 Google Inc. 397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * you may not use this file except in compliance with the License. 697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * You may obtain a copy of the License at 797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 1097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Unless required by applicable law or agreed to in writing, software 1197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 1297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * See the License for the specific language governing permissions and 1497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * limitations under the License. 1597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes */ 1697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 1797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughespackage benchmarks.regression; 1897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 19ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.Collator; 20ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.DateFormat; 21ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.DateFormatSymbols; 22ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.DecimalFormatSymbols; 23ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.NumberFormat; 24ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.text.SimpleDateFormat; 25ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.util.GregorianCalendar; 26ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinimport java.util.Locale; 2797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 2897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes/** 2997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Benchmarks creation and cloning various expensive objects. 3097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes */ 31ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinpublic class ExpensiveObjectsBenchmark { 3297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewDateFormatTimeInstance(int reps) { 3397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 3497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); 3597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes df.format(System.currentTimeMillis()); 3697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 3997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedDateFormatTimeInstance(int reps) { 4097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); 4197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 4297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes ((DateFormat) df.clone()).format(System.currentTimeMillis()); 4397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 4697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeReusedDateFormatTimeInstance(int reps) { 4797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); 4897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 4997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes synchronized (df) { 5097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes df.format(System.currentTimeMillis()); 5197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 5597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewCollator(int reps) { 5697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 5797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Collator.getInstance(Locale.US); 5897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 6097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 6197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedCollator(int reps) { 6297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Collator c = Collator.getInstance(Locale.US); 6397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 6497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes c.clone(); 6597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 6697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 6797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 6897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewDateFormatSymbols(int reps) { 6997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 7097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes new DateFormatSymbols(Locale.US); 7197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 7297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 7397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 7497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedDateFormatSymbols(int reps) { 7597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes DateFormatSymbols dfs = new DateFormatSymbols(Locale.US); 7697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 7797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes dfs.clone(); 7897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 7997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 8197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewDecimalFormatSymbols(int reps) { 8297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 8397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes new DecimalFormatSymbols(Locale.US); 8497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 8797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedDecimalFormatSymbols(int reps) { 8897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US); 8997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 9097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes dfs.clone(); 9197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 9497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewNumberFormat(int reps) { 9597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 9697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes NumberFormat.getInstance(Locale.US); 9797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 10097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedNumberFormat(int reps) { 10197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes NumberFormat nf = NumberFormat.getInstance(Locale.US); 10297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 10397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes nf.clone(); 10497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 10597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 10697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 10797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNumberFormatTrivialFormatLong(int reps) { 10897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes NumberFormat nf = NumberFormat.getInstance(Locale.US); 10997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 11097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes nf.format(1024L); 11197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 11497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeLongToString(int reps) { 11597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 11697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Long.toString(1024L); 11797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 12097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNumberFormatTrivialFormatDouble(int reps) { 12197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes NumberFormat nf = NumberFormat.getInstance(Locale.US); 12297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 12397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes nf.format(1024.0); 12497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 12597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 12697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 12797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewSimpleDateFormat(int reps) { 12897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 12997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes new SimpleDateFormat(); 13097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 13397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedSimpleDateFormat(int reps) { 13497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes SimpleDateFormat sdf = new SimpleDateFormat(); 13597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 13697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sdf.clone(); 13797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 14097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeNewGregorianCalendar(int reps) { 14197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 14297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes new GregorianCalendar(); 14397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 14497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 14597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 14697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeClonedGregorianCalendar(int reps) { 14797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes GregorianCalendar gc = new GregorianCalendar(); 14897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; ++i) { 14997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes gc.clone(); 15097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 15197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 15297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes} 153