author | phh |
Sat, 30 Nov 2019 14:33:05 -0800 | |
changeset 59330 | 5b96c12f909d |
parent 49958 | cc29d7717e3a |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004, 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 nsk.monitoring.MemoryPoolMBean.isUsageThresholdExceeded; |
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import java.lang.management.*; |
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import java.io.*; |
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import java.util.*; |
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import nsk.share.*; |
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import nsk.monitoring.share.*; |
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import javax.management.InstanceNotFoundException; |
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import javax.management.Notification; |
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import javax.management.NotificationFilter; |
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import javax.management.NotificationListener; |
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import javax.management.openmbean.CompositeData; |
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public class isexceeded001 { |
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private static boolean testFailed = false; |
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private static final int INCREMENT = 100 * 1024; // 100kb |
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public static void main(String[] argv) { |
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System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out)); |
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} |
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static byte[] b; |
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public static int run(String[] argv, PrintStream out) { |
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ArgumentHandler argHandler = new ArgumentHandler(argv); |
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Log log = new Log(out, argHandler); |
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MemoryMonitor monitor = Monitor.getMemoryMonitor(log, argHandler); |
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List pools = monitor.getMemoryPoolMBeans(); |
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for (int i = 0; i < pools.size(); i++) { |
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Object pool = pools.get(i); |
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log.display(i + " pool " + monitor.getName(pool)); |
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if (!monitor.isUsageThresholdSupported(pool)) { |
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log.display(" does not support usage thresholds"); |
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continue; |
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} else |
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log.display(" supports usage thresholds"); |
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// Set a threshold that is greater than used value |
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MemoryUsage usage = monitor.getUsage(pool); |
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long used = usage.getUsed(); |
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long max = usage.getMax(); |
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long threshold = used + 1; |
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if ( (max > -1) && (threshold > max) ) { |
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// we can't test threshold - not enough memory |
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log.display("not enough memory for testing threshold:" + |
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" used=" + used + |
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", max = " + max ); |
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} |
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monitor.setUsageThreshold(pool, threshold); |
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log.display(" threshold " + threshold + " is set, used = " + used ); |
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monitor.resetPeakUsage(pool); |
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log.display(" resetting peak usage"); |
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log.display(" peak usage = " + monitor.getPeakUsage(pool).getUsed()); |
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// Eat some memory - provoke usage of the pool to cross the |
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// threshold value |
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b = new byte[INCREMENT]; // Eat 100K |
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boolean isExceeded = monitor.isUsageThresholdExceeded(pool); |
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usage = monitor.getPeakUsage(pool); |
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used = usage.getUsed(); |
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log.display(" used value is " + used); |
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if (used < threshold && isExceeded) { |
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// There're problems with isUsageThresholdExceeded() |
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log.complain("isUsageThresholdExceeded() returned " |
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+ "true, while threshold = " + threshold |
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+ " and used peak = " + used); |
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testFailed = true; |
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} else |
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if (used >= threshold && !isExceeded) { |
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// we can introduce some imprecision during pooling memory usage |
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// value at the Code Cache memory pool. Amount of used memory |
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// was changed after we'd calculated isExceeded value |
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if (monitor.isUsageThresholdExceeded(pool)) { |
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// that's mean such imprecision |
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log.display("isUsageThresholdExceeded() returned false," |
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+ " while threshold = " + threshold + " and " |
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+ "used peak = " + used); |
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} else { |
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// some other problems with isUsageThresholdExceeded() |
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log.complain("isUsageThresholdExceeded() returned false," |
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+ " while threshold = " + threshold + " and " |
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+ "used peak = " + used); |
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testFailed = true; |
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} |
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} |
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} // for i |
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if (testFailed) |
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out.println("TEST FAILED"); |
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return (testFailed) ? Consts.TEST_FAILED : Consts.TEST_PASSED; |
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} |
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} |