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8178095: Add GC stress test TestSystemGC

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Reviewed-by: dfazunen, mgerdin
This commit is contained in:
Erik Helin 2017-04-05 14:21:58 +02:00
parent f7c823802a
commit ee6019a512
5 changed files with 338 additions and 0 deletions
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190
hotspot/test/gc/stress/systemgc/TestSystemGC.java Normal file
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/*
* Copyright (c) 2017, 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.
*/
// A test that stresses a full GC by allocating objects of different lifetimes
// and concurrently calling System.gc().
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
final class ThreadUtils {
public static void sleep(long durationMS) {
try {
Thread.sleep(durationMS);
} catch (Exception e) {
}
}
}
class Exitable {
private volatile boolean shouldExit = false;
protected boolean shouldExit() {
return shouldExit;
}
public void exit() {
shouldExit = true;
}
}
class ShortLivedAllocationTask extends Exitable implements Runnable {
private Map<String, String> map = new HashMap<>();
@Override
public void run() {
map = new HashMap<>();
while (!shouldExit()) {
for (int i = 0; i < 200; i++) {
String key = "short" + " key = " + i;
String value = "the value is " + i;
map.put(key, value);
}
}
}
}
class LongLivedAllocationTask extends Exitable implements Runnable {
private Map<String, String> map;
LongLivedAllocationTask(Map<String, String> map) {
this.map = map;
}
@Override
public void run() {
while (!shouldExit()) {
String prefix = "long" + System.currentTimeMillis();
for (int i = 0; i < 10; i++) {
String key = prefix + " key = " + i;
String value = "the value is " + i;
map.put(key, value);
}
}
}
}
class SystemGCTask extends Exitable implements Runnable {
private long delayMS;
SystemGCTask(long delayMS) {
this.delayMS = delayMS;
}
@Override
public void run() {
while (!shouldExit()) {
System.gc();
ThreadUtils.sleep(delayMS);
}
}
}
public class TestSystemGC {
private static final int numGroups = 7;
private static final int numGCsPerGroup = 4;
private static Map<String, String> longLivedMap = new TreeMap<>();
private static void populateLongLived() {
for (int i = 0; i < 1000000; i++) {
String key = "all" + " key = " + i;
String value = "the value is " + i;
longLivedMap.put(key, value);
}
}
private static long getDelayMS(int group) {
if (group == 0) {
return 0;
}
int res = 16;
for (int i = 0; i < group; i++) {
res *= 2;
}
return res;
}
private static void doSystemGCs() {
ThreadUtils.sleep(1000);
for (int i = 0; i < numGroups; i++) {
for (int j = 0; j < numGCsPerGroup; j++) {
System.gc();
ThreadUtils.sleep(getDelayMS(i));
}
}
}
private static SystemGCTask createSystemGCTask(int group) {
long delay0 = getDelayMS(group);
long delay1 = getDelayMS(group + 1);
long delay = delay0 + (delay1 - delay0) / 2;
return new SystemGCTask(delay);
}
private static void startTask(Runnable task) {
if (task != null) {
new Thread(task).start();
}
}
private static void exitTask(Exitable task) {
if (task != null) {
task.exit();
}
}
private static void runAllPhases() {
for (int i = 0; i < 4; i++) {
SystemGCTask gcTask =
(i % 2 == 1) ? createSystemGCTask(numGroups / 3) : null;
ShortLivedAllocationTask shortTask =
(i == 1 || i == 3) ? new ShortLivedAllocationTask() : null;
LongLivedAllocationTask longTask =
(i == 2 || i == 3) ? new LongLivedAllocationTask(longLivedMap) : null;
startTask(gcTask);
startTask(shortTask);
startTask(longTask);
doSystemGCs();
exitTask(gcTask);
exitTask(shortTask);
exitTask(longTask);
ThreadUtils.sleep(1000);
}
}
public static void main(String[] args) {
// First allocate the long lived objects and then run all phases twice.
populateLongLived();
runAllPhases();
runAllPhases();
}
}

37
hotspot/test/gc/stress/systemgc/TestSystemGCWithCMS.java Normal file
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/*
* Copyright (c) 2017, 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 TestSystemGCWithCMS
* @key gc
* @key stress
* @requires vm.gc.ConcMarkSweep
* @summary Stress the CMS GC full GC by allocating objects of different lifetimes concurrently with System.gc().
* @run main/othervm/timeout=300 -Xlog:gc*=info -Xmx512m -XX:+UseConcMarkSweepGC TestSystemGCWithCMS
*/
public class TestSystemGCWithCMS {
public static void main(String[] args) {
TestSystemGC.main(args);
}
}

37
hotspot/test/gc/stress/systemgc/TestSystemGCWithG1.java Normal file
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/*
* Copyright (c) 2017, 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 TestSystemGCWithG1
* @key gc
* @key stress
* @requires vm.gc.G1
* @summary Stress the G1 GC full GC by allocating objects of different lifetimes concurrently with System.gc().
* @run main/othervm/timeout=300 -Xlog:gc*=info -Xmx512m -XX:+UseG1GC TestSystemGCWithG1
*/
public class TestSystemGCWithG1 {
public static void main(String[] args) {
TestSystemGC.main(args);
}
}

37
hotspot/test/gc/stress/systemgc/TestSystemGCWithParallel.java Normal file
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/*
* Copyright (c) 2017, 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 TestSystemGCWithParallel
* @key gc
* @key stress
* @requires vm.gc.Parallel
* @summary Stress the Parallel GC full GC by allocating objects of different lifetimes concurrently with System.gc().
* @run main/othervm/timeout=300 -Xlog:gc*=info -Xmx512m -XX:+UseParallelGC TestSystemGCWithParallel
*/
public class TestSystemGCWithParallel {
public static void main(String[] args) {
TestSystemGC.main(args);
}
}

37
hotspot/test/gc/stress/systemgc/TestSystemGCWithSerial.java Normal file
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/*
* Copyright (c) 2017, 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 TestSystemGCWithSerial
* @key gc
* @key stress
* @requires vm.gc.Serial
* @summary Stress the Serial GC full GC by allocating objects of different lifetimes concurrently with System.gc().
* @run main/othervm/timeout=300 -Xlog:gc*=info -Xmx512m -XX:+UseSerialGC TestSystemGCWithSerial
*/
public class TestSystemGCWithSerial {
public static void main(String[] args) {
TestSystemGC.main(args);
}
}