/*
* Copyright (C) 2003-2009 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.jcr.load.perf;
import org.exoplatform.services.jcr.JcrAPIBaseTest;
import org.exoplatform.services.jcr.impl.core.SessionImpl;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.Session;
/**
* Created by The eXo Platform SAS.
*
* <br>Date: 2009
*
* @author <a href="mailto:anatoliy.bazko@exoplatform.com.ua">Anatoliy Bazko</a>
* @version $Id$
*/
public class TestGetNodesPerf extends JcrAPIBaseTest
{
private static final String testName = "testRoot";
private static final int sessionCount = 100;
private static final int nodesCount = 50000;
private static final int timesCount = 5;
private Session[] sessions = new Session[sessionCount];
private GetNodesThread[] threads = new GetNodesThread[sessionCount];
public void testGetNodes() throws Exception
{
for (int i = 0; i < sessionCount; i++)
{
sessions[i] = (SessionImpl)repository.login(credentials, "ws");
}
Node testRoot = session.getRootNode().addNode(testName);
session.save();
log.info("adding...");
for (int i = 0; i < nodesCount; i++)
{
testRoot.addNode("_" + i + "_node");
}
log.info("saving...");
session.save();
log.info("waiting for 10 seconds...");
Thread.sleep(10000);
System.gc();
Runtime rt = Runtime.getRuntime();
long usedMemory = rt.totalMemory() - rt.freeMemory();
log.info("getting nodes...");
for (int k = 0; k < timesCount; k++)
{
for (int i = 0; i < sessionCount; i++)
{
threads[i] = new GetNodesThread(sessions[i]);
threads[i].start();
}
outer : while (true)
{
for (int i = 0; i < sessionCount; i++)
{
if (threads[i].isAlive())
{
Thread.sleep(1000);
continue outer;
}
}
break;
}
log.info("Memory used: " + (rt.totalMemory() - rt.freeMemory() - usedMemory) / 1024 / 1024 + "Mb");
log.info("waiting for 10 seconds...");
Thread.sleep(10000);
}
log.info("Memory used: " + (rt.totalMemory() - rt.freeMemory() - usedMemory) / 1024 / 1024 + "Mb");
}
private class GetNodesThread extends Thread
{
private final Session curSession;
private NodeIterator nodes;
GetNodesThread(Session session)
{
this.curSession = session;
}
@Override
public void run()
{
try
{
Node testRoot = curSession.getRootNode().getNode(testName);
long startTime = System.currentTimeMillis();
nodes = testRoot.getNodes();
while (nodes.hasNext())
{
nodes.next();
}
log.info("Total time: " + (System.currentTimeMillis() - startTime) + "ms");
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public void _testNodeItetatorPerfomance() throws Exception
{
Node testRoot = session.getRootNode().getNode(testName);
// Test iterator perfomance
NodeIterator nodes = testRoot.getNodes();
log.info(nodes.getSize() + " nodes");
long startTime = System.currentTimeMillis();
while (nodes.hasNext())
{
nodes.nextNode();
}
log.info("Iterating all nodes consumes : " + (System.currentTimeMillis() - startTime) + "ms");
}
}