/*
* Copyright ( C ) 2020 The Android Open Source Project
*
* 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 .
*/
import java.util.concurrent.atomic.AtomicInteger;
public class Main {
private static class LazyGrandChildThread implements Runnable {
@Override
public void run() {}
}
private static class ChildThread implements Runnable {
@Override
public void run() {
// Allocate memory forcing GCs and fork children.
for (int i = 0 ; i < 100 ; ++i) {
int [][] a = new int [10 ][];
for (int j = 0 ; j < 10 ; ++j) {
a[j] = new int [50000 * j + 20 ];
a[j][17 ] = 1 ;
}
Thread t = new Thread (new LazyGrandChildThread());
t.start();
int sum = 0 ;
// Make it hard to optimize out the arrays.
for (int j = 0 ; j < 10 ; ++j) {
sum += a[j][16 ] /* = 0 */ + a[j][17] /* = 1 */;
}
if (sum != 10 ) {
System.out.println("Bad result! Was " + sum);
}
try {
t.join();
} catch (InterruptedException e) {
System.out.println("Interrupted by " + e);
}
}
System.out.println("Child finished" );
}
}
public static void main(String[] args) {
System.out.println("Main Started" );
new Thread (new ChildThread()).start();
System.out.println("Main Finished" );
}
}
Messung V0.5 in Prozent C=82 H=93 G=87
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-29)
¤
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