102 lines
3.6 KiB
Java
102 lines
3.6 KiB
Java
/*
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* Copyright (c) 2010, 2018, Oracle and/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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package vm.mlvm.share;
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import vm.share.options.Option;
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import java.util.concurrent.CyclicBarrier;
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public abstract class MultiThreadedTest extends MlvmTest {
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@Option(name = "threadsExtra", default_value = "1",
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description = "Summand of absolute thread count that does not"
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+ " depend on CPU count")
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private int threadsExtra;
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@Option(name = "threadsPerCpu", default_value = "0",
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description = "Summand of absolute thread count that is multiplied"
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+ " by CPU count")
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private int threadsPerCpu;
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protected MultiThreadedTest() {
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// fields will be initialized later by the Option framework
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}
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protected abstract boolean runThread(int threadNum) throws Throwable;
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protected int calcThreadNum() {
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// TODO: multiply by StressThreadFactor: JDK-8142970
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return threadsPerCpu * Runtime.getRuntime().availableProcessors()
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+ threadsExtra;
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}
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@Override
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public boolean run() throws Throwable {
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Thread.UncaughtExceptionHandler exHandler = (Thread t, Throwable e) -> {
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markTestFailed("Exception in thread %s" + t.getName(), e);
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};
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int threadNum = calcThreadNum();
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Env.traceNormal("Threads to start in this test: " + threadNum);
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final CyclicBarrier startBarrier = new CyclicBarrier(threadNum + 1);
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Thread[] threads = new Thread[threadNum];
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for (int i = 0; i < threadNum; i++) {
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final int ii = i;
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threads[i] = new Thread(() -> {
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boolean passed = false;
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try {
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startBarrier.await();
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if (runThread(ii)) {
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passed = true;
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} else {
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Env.complain("Failed test in %s",
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Thread.currentThread());
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}
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} catch (Throwable e) {
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Env.complain(e, "Caught exception in %s",
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Thread.currentThread());
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}
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if (!passed) {
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markTestFailed("Thread " + Thread.currentThread()
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+ " failed");
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}
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});
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threads[i].setUncaughtExceptionHandler(exHandler);
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threads[i].start();
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}
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startBarrier.await();
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Env.traceNormal(threadNum + " threads have started");
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for (int i = 0; i < threadNum; i++) {
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threads[i].join();
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}
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Env.traceNormal("All threads have finished");
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return true;
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}
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}
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