87 lines
4.3 KiB
Java
87 lines
4.3 KiB
Java
/*
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* Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test TestSpinPause
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* @summary JVM runtime can use SpinPause function for synchronized statements.
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* Check different implementations of JVM SpinPause don't crash JVM.
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* @bug 8278241
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* @library /test/lib
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*
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* @requires os.arch=="aarch64"
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*
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* @run main/othervm TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=none TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop -XX:OnSpinWaitInstCount=10 TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb -XX:OnSpinWaitInstCount=3 TestSpinPause
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield -XX:OnSpinWaitInstCount=3 TestSpinPause
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* @run main/othervm -Xint TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=none TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop -XX:OnSpinWaitInstCount=10 TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb -XX:OnSpinWaitInstCount=3 TestSpinPause
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* @run main/othervm -Xint -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield -XX:OnSpinWaitInstCount=3 TestSpinPause
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* @run main/othervm -Xcomp TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=none TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=nop -XX:OnSpinWaitInstCount=10 TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=isb -XX:OnSpinWaitInstCount=3 TestSpinPause
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* @run main/othervm -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:OnSpinWaitInst=yield -XX:OnSpinWaitInstCount=3 TestSpinPause
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*/
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public class TestSpinPause {
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private Integer[] valueHolder;
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private TestSpinPause () {
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valueHolder = new Integer[] {Integer.valueOf(101)};
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}
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private void getSet() {
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final int iterCount = 100;
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for (int i = 0; i < iterCount; ++i) {
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synchronized (valueHolder) {
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Integer v = valueHolder[0];
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valueHolder[0] = Integer.reverse(v);
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}
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}
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}
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public static void main(String[] args) throws Exception {
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TestSpinPause test = new TestSpinPause();
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Thread t1 = new Thread(test::getSet);
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Thread t2 = new Thread(test::getSet);
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t1.start();
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t2.start();
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t1.join();
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t2.join();
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System.out.println("Done: " + test.valueHolder[0]);
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}
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}
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