test/hotspot/jtreg/vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded001.java
author phh
Sat, 30 Nov 2019 14:33:05 -0800
changeset 59330 5b96c12f909d
parent 49958 cc29d7717e3a
permissions -rw-r--r--
8234541: C1 emits an empty message when it inlines successfully Summary: Use "inline" as the message when successfull Reviewed-by: thartmann, mdoerr Contributed-by: navy.xliu@gmail.com
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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}