| /* |
| * Copyright (C) 2009 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package benchmarks.regression; |
| |
| import com.google.caliper.Benchmark; |
| import com.google.caliper.Param; |
| import com.google.caliper.Runner; |
| import com.google.caliper.SimpleBenchmark; |
| import java.text.*; |
| import java.util.*; |
| |
| /** |
| * Benchmarks creation and cloning various expensive objects. |
| */ |
| public class ExpensiveObjectsBenchmark extends SimpleBenchmark { |
| public void timeNewDateFormatTimeInstance(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); |
| df.format(System.currentTimeMillis()); |
| } |
| } |
| |
| public void timeClonedDateFormatTimeInstance(int reps) { |
| DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); |
| for (int i = 0; i < reps; ++i) { |
| ((DateFormat) df.clone()).format(System.currentTimeMillis()); |
| } |
| } |
| |
| public void timeReusedDateFormatTimeInstance(int reps) { |
| DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT); |
| for (int i = 0; i < reps; ++i) { |
| synchronized (df) { |
| df.format(System.currentTimeMillis()); |
| } |
| } |
| } |
| |
| public void timeNewCollator(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| Collator.getInstance(Locale.US); |
| } |
| } |
| |
| public void timeClonedCollator(int reps) { |
| Collator c = Collator.getInstance(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| c.clone(); |
| } |
| } |
| |
| public void timeNewDateFormatSymbols(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| new DateFormatSymbols(Locale.US); |
| } |
| } |
| |
| public void timeClonedDateFormatSymbols(int reps) { |
| DateFormatSymbols dfs = new DateFormatSymbols(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| dfs.clone(); |
| } |
| } |
| |
| public void timeNewDecimalFormatSymbols(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| new DecimalFormatSymbols(Locale.US); |
| } |
| } |
| |
| public void timeClonedDecimalFormatSymbols(int reps) { |
| DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| dfs.clone(); |
| } |
| } |
| |
| public void timeNewNumberFormat(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| NumberFormat.getInstance(Locale.US); |
| } |
| } |
| |
| public void timeClonedNumberFormat(int reps) { |
| NumberFormat nf = NumberFormat.getInstance(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| nf.clone(); |
| } |
| } |
| |
| public void timeNumberFormatTrivialFormatLong(int reps) { |
| NumberFormat nf = NumberFormat.getInstance(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| nf.format(1024L); |
| } |
| } |
| |
| public void timeLongToString(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| Long.toString(1024L); |
| } |
| } |
| |
| public void timeNumberFormatTrivialFormatDouble(int reps) { |
| NumberFormat nf = NumberFormat.getInstance(Locale.US); |
| for (int i = 0; i < reps; ++i) { |
| nf.format(1024.0); |
| } |
| } |
| |
| public void timeNewSimpleDateFormat(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| new SimpleDateFormat(); |
| } |
| } |
| |
| public void timeClonedSimpleDateFormat(int reps) { |
| SimpleDateFormat sdf = new SimpleDateFormat(); |
| for (int i = 0; i < reps; ++i) { |
| sdf.clone(); |
| } |
| } |
| |
| public void timeNewGregorianCalendar(int reps) { |
| for (int i = 0; i < reps; ++i) { |
| new GregorianCalendar(); |
| } |
| } |
| |
| public void timeClonedGregorianCalendar(int reps) { |
| GregorianCalendar gc = new GregorianCalendar(); |
| for (int i = 0; i < reps; ++i) { |
| gc.clone(); |
| } |
| } |
| } |