blob: 535e298d5d01be3fac484af576863785d8c5d991 [file] [log] [blame]
/*
* 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();
}
}
}