foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/performance/concurrent/BasicMathConcurrentTest.java

/*
 * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.testing.tests.performance.concurrent;

import org.eclipse.persistence.testing.framework.*;

/**
 * This tests the concurrency of the machine through testing math operations with multiple threads.
 * This test must be run on a multi-CPU machine to be meaningful.
 */
public class BasicMathConcurrentTest extends ConcurrentPerformanceComparisonTest {
    public BasicMathConcurrentTest() {
        setName("BasicMathConcurrentTest");
        setDescription("This tests the concurrency of the machine through testing math operations with multiple threads.");
    }

    /**
     * Perform 100 cos.
     */
    @Override
    public void runTask() throws Exception {
        for (int index = 0; index < 100; index++) {
            double d = Math.acos(4.5);
            d = d + 100;
            d = Math.cos(d);
        }
    }
}