author | chegar |
Thu, 17 Oct 2019 20:54:25 +0100 | |
branch | datagramsocketimpl-branch |
changeset 58679 | 9c3209ff7550 |
parent 58678 | 9cf78a70fa4f |
parent 55606 | 78a2b1bb15cf |
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/* |
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* Copyright (c) 2018, Red Hat, Inc. All rights reserved. |
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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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*/ |
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/* |
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* @test TestPauseNotifications |
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* @summary Check that MX notifications are reported for all cycles |
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* @key gc |
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* @requires vm.gc.Shenandoah & !vm.graal.enabled |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive |
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* -XX:+ShenandoahDegeneratedGC |
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* TestPauseNotifications |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive |
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* -XX:-ShenandoahDegeneratedGC |
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* TestPauseNotifications |
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*/ |
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|
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/* |
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* @test TestPauseNotifications |
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* @summary Check that MX notifications are reported for all cycles |
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* @key gc |
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* @requires vm.gc.Shenandoah & !vm.graal.enabled |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive |
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* TestPauseNotifications |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive |
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* TestPauseNotifications |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static |
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* TestPauseNotifications |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact |
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* TestPauseNotifications |
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*/ |
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/* |
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* @test TestPauseNotifications |
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* @summary Check that MX notifications are reported for all cycles |
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* @key gc |
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* @requires vm.gc.Shenandoah & !vm.graal.enabled |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCMode=traversal -XX:ShenandoahGCHeuristics=aggressive |
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* TestPauseNotifications |
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* |
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* @run main/othervm -Xmx128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions |
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* -XX:+UseShenandoahGC -XX:ShenandoahGCMode=traversal |
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* TestPauseNotifications |
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*/ |
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import java.util.*; |
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import java.util.concurrent.atomic.*; |
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import javax.management.*; |
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import java.lang.management.*; |
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import javax.management.openmbean.*; |
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import com.sun.management.GarbageCollectionNotificationInfo; |
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public class TestPauseNotifications { |
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static final long HEAP_MB = 128; // adjust for test configuration above |
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static final long TARGET_MB = Long.getLong("target", 8_000); // 8 Gb allocation |
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static volatile Object sink; |
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public static void main(String[] args) throws Exception { |
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final AtomicLong pausesDuration = new AtomicLong(); |
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final AtomicLong cyclesDuration = new AtomicLong(); |
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NotificationListener listener = new NotificationListener() { |
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@Override |
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public void handleNotification(Notification n, Object o) { |
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if (n.getType().equals(GarbageCollectionNotificationInfo.GARBAGE_COLLECTION_NOTIFICATION)) { |
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GarbageCollectionNotificationInfo info = GarbageCollectionNotificationInfo.from((CompositeData) n.getUserData()); |
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System.out.println(info.getGcInfo().toString()); |
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System.out.println(info.getGcName()); |
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System.out.println(); |
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long d = info.getGcInfo().getDuration(); |
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String name = info.getGcName(); |
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if (name.contains("Shenandoah")) { |
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112 |
if (name.equals("Shenandoah Pauses")) { |
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pausesDuration.addAndGet(d); |
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114 |
} else if (name.equals("Shenandoah Cycles")) { |
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cyclesDuration.addAndGet(d); |
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116 |
} else { |
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throw new IllegalStateException("Unknown name: " + name); |
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118 |
} |
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119 |
} |
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120 |
} |
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121 |
} |
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122 |
}; |
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123 |
|
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124 |
for (GarbageCollectorMXBean bean : ManagementFactory.getGarbageCollectorMXBeans()) { |
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125 |
((NotificationEmitter) bean).addNotificationListener(listener, null, null); |
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126 |
} |
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127 |
|
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128 |
final int size = 100_000; |
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long count = TARGET_MB * 1024 * 1024 / (16 + 4 * size); |
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130 |
|
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131 |
for (int c = 0; c < count; c++) { |
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sink = new int[size]; |
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133 |
} |
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134 |
|
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Thread.sleep(1000); |
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136 |
|
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long pausesActual = pausesDuration.get(); |
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long cyclesActual = cyclesDuration.get(); |
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139 |
|
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long minExpected = 1; |
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long maxExpected = Long.MAX_VALUE; |
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142 |
|
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143 |
{ |
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String msg = "Pauses expected = [" + minExpected + "; " + maxExpected + "], actual = " + pausesActual; |
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145 |
if (minExpected < pausesActual && pausesActual < maxExpected) { |
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146 |
System.out.println(msg); |
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147 |
} else { |
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148 |
throw new IllegalStateException(msg); |
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149 |
} |
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150 |
} |
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151 |
|
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152 |
{ |
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String msg = "Cycles expected = [" + minExpected + "; " + maxExpected + "], actual = " + cyclesActual; |
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154 |
if (minExpected < cyclesActual && cyclesActual < maxExpected) { |
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155 |
System.out.println(msg); |
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156 |
} else { |
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157 |
throw new IllegalStateException(msg); |
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158 |
} |
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159 |
} |
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160 |
|
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161 |
{ |
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String msg = "Cycle duration (" + cyclesActual + "), pause duration (" + pausesActual + ")"; |
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163 |
if (pausesActual < cyclesActual) { |
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System.out.println(msg); |
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165 |
} else { |
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166 |
throw new IllegalStateException(msg); |
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167 |
} |
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168 |
} |
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169 |
} |
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170 |
} |