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/*
* Copyright (C) 2013 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;
import com.google.caliper.Param;
import com.google.caliper.SimpleBenchmark;
public class SystemArrayCopyBenchmark extends SimpleBenchmark {
@Param({"2", "4", "8", "16", "32", "64", "128", "256", "512", "1024",
"2048", "4096", "8192", "16384", "32768", "65536", "131072", "262144"})
int arrayLength;
// Provides benchmarking for different types of arrays using the arraycopy function.
public void timeSystemCharArrayCopy(int reps) {
final int len = arrayLength;
char[] src = new char[len];
char[] dst = new char[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemByteArrayCopy(int reps) {
final int len = arrayLength;
byte[] src = new byte[len];
byte[] dst = new byte[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemShortArrayCopy(int reps) {
final int len = arrayLength;
short[] src = new short[len];
short[] dst = new short[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemIntArrayCopy(int reps) {
final int len = arrayLength;
int[] src = new int[len];
int[] dst = new int[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemLongArrayCopy(int reps) {
final int len = arrayLength;
long[] src = new long[len];
long[] dst = new long[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemFloatArrayCopy(int reps) {
final int len = arrayLength;
float[] src = new float[len];
float[] dst = new float[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemDoubleArrayCopy(int reps) {
final int len = arrayLength;
double[] src = new double[len];
double[] dst = new double[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
public void timeSystemBooleanArrayCopy(int reps) {
final int len = arrayLength;
boolean[] src = new boolean[len];
boolean[] dst = new boolean[len];
for (int rep = 0; rep < reps; ++rep) {
System.arraycopy(src, 0, dst, 0, len);
}
}
}
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