author | jwilhelm |
Wed, 19 Dec 2018 20:53:30 +0100 | |
changeset 53073 | 11033c4ada54 |
parent 53030 | 5274fb04cad9 |
parent 53060 | 7aa1a37b04a2 |
permissions | -rw-r--r-- |
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/* |
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8210035: Fix copyrights for files created for the HeapMonitor work
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
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* Copyright (c) 2018, Google 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 MyPackage; |
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/** |
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* @test |
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* @build Frame HeapMonitor ThreadInformation |
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* @summary Verifies the JVMTI Heap Monitor Thread information sanity. |
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* @compile HeapMonitorThreadTest.java |
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* @run main/othervm/native -Xmx512m -agentlib:HeapMonitorTest MyPackage.HeapMonitorThreadTest |
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*/ |
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import java.util.List; |
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public class HeapMonitorThreadTest { |
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private native static boolean checkSamples(int numThreads); |
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public static void main(String[] args) { |
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final int numThreads = 5; |
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List<ThreadInformation> threadList = ThreadInformation.createThreadList(numThreads); |
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8205725: Update the JVMTI Spec for Heap Sampling
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parents:
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changeset
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// Sample at a interval of 8k. |
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HeapMonitor.setSamplingInterval(1 << 13); |
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HeapMonitor.enableSamplingEvents(); |
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System.err.println("Starting threads"); |
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ThreadInformation.startThreads(threadList); |
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ThreadInformation.waitForThreads(threadList); |
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System.err.println("Waited for threads"); |
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if (!checkSamples(numThreads)) { |
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throw new RuntimeException("Problem with checkSamples..."); |
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} |
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// Now inform each thread we are done and wait for them to be done. |
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ThreadInformation.stopThreads(threadList); |
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} |
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} |