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64 lines
2.1 KiB
Java
64 lines
2.1 KiB
Java
/*
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* Copyright (c) 2025, 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 org.openjdk.bench.java.lang;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.locks.LockSupport;
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import org.openjdk.jmh.annotations.*;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Benchmark)
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@Warmup(iterations = 10, time = 1)
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@Measurement(iterations = 10, time = 1)
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@Fork(value = 3)
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public class VirtualThreadGetStackTraceWhenUnmounted {
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private volatile boolean done;
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private Thread thread;
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@Setup
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public void setup() throws InterruptedException {
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var started = new CountDownLatch(1);
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thread = Thread.startVirtualThread(() -> {
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started.countDown();
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while (!done) {
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LockSupport.park();
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}
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});
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started.await();
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}
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@TearDown
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public void shutdown() throws InterruptedException {
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done = true;
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LockSupport.unpark(thread);
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thread.join();
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}
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@Benchmark
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public StackTraceElement[] testGetStackTrace() {
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return thread.getStackTrace();
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}
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}
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