org.spf4j.recyclable.impl.ObjectPoolVsApache.java Source code

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Here is the source code for org.spf4j.recyclable.impl.ObjectPoolVsApache.java

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/*
* Copyright (c) 2001, Zoltan Farkas All Rights Reserved.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
package org.spf4j.recyclable.impl;

import org.spf4j.base.Callables;
import org.spf4j.concurrent.RetryExecutor;
import org.spf4j.recyclable.ObjectBorrowException;
import org.spf4j.recyclable.ObjectCreationException;
import org.spf4j.recyclable.ObjectDisposeException;
import org.spf4j.recyclable.RecyclingSupplier;
import org.spf4j.recyclable.ObjectReturnException;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.TimeoutException;
import junit.framework.Assert;
import org.apache.commons.pool.impl.GenericObjectPool;
import org.junit.Test;

/**
 *
 * @author zoly
 */
public final class ObjectPoolVsApache {

    private static final int TEST_TASKS = 1000000;

    @Test(timeout = 200000)
    public void testPerformance() throws ObjectCreationException, ObjectBorrowException, InterruptedException,
            TimeoutException, ObjectReturnException, ObjectDisposeException, ExecutionException {
        System.out.println("poolUse");
        final RecyclingSupplier<ExpensiveTestObject> pool = new RecyclingSupplierBuilder(10,
                new ExpensiveTestObjectFactory(1000, 100, 0, 1)).build();
        final org.apache.commons.pool.impl.GenericObjectPool apool = new GenericObjectPool(
                new ExpensiveTestObjectFactoryApache(1000, 10, 0, 1), 10);
        ExecutorService execService = Executors.newFixedThreadPool(10);
        BlockingQueue<Future<Integer>> completionQueue = new LinkedBlockingDeque<Future<Integer>>();
        RetryExecutor<Integer> exec = new RetryExecutor<>(execService, 8, 16, 5000,
                Callables.DEFAULT_EXCEPTION_RETRY_PREDICATE, completionQueue);
        long zpooltime = testPool(exec, pool, completionQueue);
        long apooltime = testPoolApache(exec, apool, completionQueue);
        Assert.assertTrue("apache pool must be slower", apooltime > zpooltime);

    }

    private long testPool(final RetryExecutor<Integer> exec, final RecyclingSupplier<ExpensiveTestObject> pool,
            final BlockingQueue<Future<Integer>> completionQueue) throws InterruptedException, ExecutionException {
        long startTime = System.currentTimeMillis();
        for (int i = 0; i < TEST_TASKS; i++) {
            exec.submit(new TestCallable(pool, i));
        }
        for (int i = 0; i < TEST_TASKS; i++) {
            completionQueue.take().get();
        }
        long elapsedTime = System.currentTimeMillis() - startTime;
        System.out.println("Completed all " + TEST_TASKS + " tasks in " + elapsedTime + "ms ");
        return elapsedTime;
    }

    private long testPoolApache(final RetryExecutor<Integer> exec,
            final org.apache.commons.pool.impl.GenericObjectPool pool,
            final BlockingQueue<Future<Integer>> completionQueue) throws InterruptedException, ExecutionException {
        long startTime = System.currentTimeMillis();
        for (int i = 0; i < TEST_TASKS; i++) {
            exec.submit(new TestCallableApache(pool, i));
        }
        for (int i = 0; i < TEST_TASKS; i++) {
            completionQueue.take().get();
        }
        long elapsedTime = System.currentTimeMillis() - startTime;
        System.out.println("Completed all " + TEST_TASKS + " tasks in " + elapsedTime + "ms ");
        return elapsedTime;
    }

}