/*
* $Id$
*
* Copyright (C) 2003-2015 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.test;
/**
* @author Peter
*/
public class NanoTimeTest {
public static void main(String[] args) {
NanoTimeTest ntt = new NanoTimeTest();
ntt.run(500);
ntt.run(1000);
ntt.run(1500);
ntt.run(2000);
ntt.run(2500);
ntt.run(3000);
}
public void run(int ms) {
long start = System.nanoTime();
try {
Thread.sleep(ms);
} catch (Exception e) {
e.printStackTrace();
}
long end = System.nanoTime();
long nano = end - start;
System.out.println("The test ran " + ms + "ms and according to " +
"System.nanoTime that was " + nano + "ns");
long p = Math.abs(ms * 1000L - nano) / ms;
System.out.println("Aberration : " + p + " promill");
}
}