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/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test ThresholdNotificationsTest
* @summary testing of getUsageThreshold()
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
*
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing
* -XX:+WhiteBoxAPI -XX:-MethodFlushing -XX:CompileCommand=compileonly,null::*
* -XX:+SegmentedCodeCache
* compiler.codecache.jmx.ThresholdNotificationsTest
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing
* -XX:+WhiteBoxAPI -XX:-MethodFlushing -XX:CompileCommand=compileonly,null::*
* -XX:-SegmentedCodeCache
* compiler.codecache.jmx.ThresholdNotificationsTest
*/
package compiler.codecache.jmx;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
import sun.hotspot.code.BlobType;
import javax.management.ListenerNotFoundException;
import javax.management.Notification;
import javax.management.NotificationEmitter;
import javax.management.NotificationListener;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryNotificationInfo;
import java.lang.management.MemoryPoolMXBean;
public class ThresholdNotificationsTest implements NotificationListener {
private final static long WAIT_TIME = 10000L;
private volatile long counter;
private final BlobType btype;
public static void main(String[] args) {
for (BlobType bt : BlobType.getAvailable()) {
if (CodeCacheUtils.isCodeHeapPredictable(bt)) {
new ThresholdNotificationsTest(bt).runTest();
}
}
}
public ThresholdNotificationsTest(BlobType btype) {
this.btype = btype;
counter = 0L;
CodeCacheUtils.disableCollectionUsageThresholds();
}
@Override
public void handleNotification(Notification notification, Object handback) {
String nType = notification.getType();
String poolName
= CodeCacheUtils.getPoolNameFromNotification(notification);
// consider code cache events only
if (CodeCacheUtils.isAvailableCodeHeapPoolName(poolName)) {
Asserts.assertEQ(MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED,
nType, "Unexpected event received: " + nType);
if (poolName.equals(btype.getMemoryPool().getName())) {
counter++;
}
}
}
protected void runTest() {
int iterationsCount
= Integer.getInteger("jdk.test.lib.iterations", 1);
MemoryPoolMXBean bean = btype.getMemoryPool();
((NotificationEmitter) ManagementFactory.getMemoryMXBean()).
addNotificationListener(this, null, null);
for (int i = 0; i < iterationsCount; i++) {
CodeCacheUtils.hitUsageThreshold(bean, btype);
}
Asserts.assertTrue(
Utils.waitForCondition(
() -> (CodeCacheUtils.isCodeHeapPredictable(btype) ?
(counter == iterationsCount) : (counter >= iterationsCount)),
WAIT_TIME),
"Couldn't receive expected notifications count");
try {
((NotificationEmitter) ManagementFactory.getMemoryMXBean()).
removeNotificationListener(this);
} catch (ListenerNotFoundException ex) {
throw new AssertionError("Can't remove notification listener", ex);
}
System.out.printf("INFO: Scenario finished successfully for %s%n",
bean.getName());
}
}
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