OnJava8-Examples/validating/BadMicroBenchmark.java
2017-05-15 16:38:12 -06:00

30 lines
857 B
Java

// validating/BadMicroBenchmark.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// {ExcludeFromTravisCI}
import java.util.*;
import onjava.Timer;
public class BadMicroBenchmark {
static final int SIZE = 250_000_000;
public static void main(String[] args) {
try { // For machines with insufficient memory
long[] la = new long[SIZE];
System.out.println("setAll: " +
Timer.duration(() ->
Arrays.setAll(la, n -> n)));
System.out.println("parallelSetAll: " +
Timer.duration(() ->
Arrays.parallelSetAll(la, n -> n)));
} catch(OutOfMemoryError e) {
System.out.println("Insufficient memory");
System.exit(0);
}
}
}
/* Output:
setAll: 272
parallelSetAll: 301
*/