/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2013, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package ch.qos.logback.access.net;
import java.io.IOException;
import java.io.ObjectOutputStream;
import ch.qos.logback.access.spi.IAccessEvent;
import junit.framework.TestCase;
import ch.qos.logback.access.dummy.DummyAccessEventBuilder;
public class SerializationPerfTest extends TestCase {
ObjectOutputStream oos;
int loopNumber = 10000;
int resetFrequency = 100;
int pauseFrequency = 10;
long pauseLengthInMillis = 20;
public void setUp() throws Exception {
super.setUp();
oos = new ObjectOutputStream(new NOPOutputStream());
}
public void tearDown() throws Exception {
super.tearDown();
oos.close();
oos = null;
}
public void test1() throws Exception {
// first run for just in time compiler
int resetCounter = 0;
int pauseCounter = 0;
for (int i = 0; i < loopNumber; i++) {
try {
IAccessEvent ae = DummyAccessEventBuilder.buildNewAccessEvent();
//average time for the next method: 5000 nanos
ae.prepareForDeferredProcessing();
oos.writeObject(ae);
oos.flush();
if (++resetCounter >= resetFrequency) {
oos.reset();
resetCounter = 0;
}
if (++pauseCounter >= pauseFrequency) {
Thread.sleep(pauseLengthInMillis);
pauseCounter = 0;
}
} catch (IOException ex) {
fail(ex.getMessage());
}
}
// second run
Long t1;
Long t2;
Long total = 0L;
resetCounter = 0;
pauseCounter = 0;
// System.out.println("Beginning mesured run");
for (int i = 0; i < loopNumber; i++) {
try {
IAccessEvent ae = DummyAccessEventBuilder.buildNewAccessEvent();
t1 = System.nanoTime();
//average length of the next method: 4000 nanos
ae.prepareForDeferredProcessing();
oos.writeObject(ae);
oos.flush();
t2 = System.nanoTime();
total += (t2 - t1);
if (++resetCounter >= resetFrequency) {
oos.reset();
resetCounter = 0;
}
if (++pauseCounter >= pauseFrequency) {
Thread.sleep(pauseLengthInMillis);
pauseCounter = 0;
}
} catch (IOException ex) {
fail(ex.getMessage());
}
}
total /= (1000);//nanos -> micros
System.out.println("Loop done : average time = " + total / loopNumber
+ " microsecs after " + loopNumber + " writes.");
//average time: 26-30 microsec = 0.030 millis
}
}