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 1997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughesimport java.util.Formatter; 2097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughesimport java.util.Locale; 2197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 2297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes/** 2397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Compares Formatter against hand-written StringBuilder code. 2497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes */ 25ea13f8291a92b6f47f50011da1d5e8c107984bc3Paul Duffinpublic class FormatterBenchmark { 2697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_NoFormatting(int reps) { 2797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 2897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 2997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that doesn't actually need any formatting"); 3097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 3397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeStringBuilder_NoFormatting(int reps) { 3497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 3597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes StringBuilder sb = new StringBuilder(); 3697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("this is a reasonably short string that doesn't actually need any formatting"); 3797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 4097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneInt(int reps) { 4197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 4297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 4397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 4497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has an int %d in it", value); 4597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 4897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneIntArabic(int reps) { 4997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Locale arabic = new Locale("ar"); 5097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 5197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 5297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 5397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format(arabic, "this is a reasonably short string that has an int %d in it", value); 5497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 5797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeStringBuilder_OneInt(int reps) { 5897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 5997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes StringBuilder sb = new StringBuilder(); 6097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("this is a reasonably short string that has an int "); 6197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(1024); 6297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(" in it"); 6397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 6497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 6597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 6697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneHexInt(int reps) { 6797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here. 6897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 6997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 7097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has an int %x in it", value); 7197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 7297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 7397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 7497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeStringBuilder_OneHexInt(int reps) { 7597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 7697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes StringBuilder sb = new StringBuilder(); 7797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("this is a reasonably short string that has an int "); 7897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(Integer.toHexString(1024)); 7997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(" in it"); 8097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 8397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneFloat(int reps) { 8497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 8597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 8697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 8797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has a float %f in it", value); 8897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 8997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 9197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneFloat_dot2f(int reps) { 9297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 9397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 9497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 9597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has a float %.2f in it", value); 9697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 9897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 9997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_TwoFloats(int reps) { 10097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here. 10197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 10297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 10397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has two floats %f and %f in it", value, value); 10497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 10597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 10697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 10797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeStringBuilder_OneFloat(int reps) { 10897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 10997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes StringBuilder sb = new StringBuilder(); 11097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("this is a reasonably short string that has a float "); 11197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(10.24f); 11297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(" in it"); 11397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 11597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 11697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFormatter_OneString(int reps) { 11797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 11897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes Formatter f = new Formatter(); 11997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes f.format("this is a reasonably short string that has a string %s in it", "hello"); 12097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 12197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 12297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 12397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeStringBuilder_OneString(int reps) { 12497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int i = 0; i < reps; i++) { 12597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes StringBuilder sb = new StringBuilder(); 12697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("this is a reasonably short string that has a string "); 12797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append("hello"); 12897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes sb.append(" in it"); 12997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 13197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes} 132