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8023158: hotspot/test/gc/7168848/HumongousAlloc.java fails 14 full gcs, expect 0 full gcs

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Reviewed-by: brutisso, tschatzl
This commit is contained in:
Per Lidén 2013-10-15 11:38:47 +02:00
parent fa38a2edca
commit 908dd54639
3 changed files with 76 additions and 75 deletions
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2
hotspot/test/TEST.groups
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@ -124,7 +124,7 @@ needs_compact3 = \
compiler/whitebox/IsMethodCompilableTest.java \
gc/6581734/Test6581734.java \
gc/7072527/TestFullGCCount.java \
gc/7168848/HumongousAlloc.java \
gc/g1/TestHumongousAllocInitialMark.java \
gc/arguments/TestG1HeapRegionSize.java \
gc/metaspace/TestMetaspaceMemoryPool.java \
runtime/InternalApi/ThreadCpuTimesDeadlock.java \

74
hotspot/test/gc/7168848/HumongousAlloc.java
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@ -1,74 +0,0 @@
/*
* Copyright (c) 2012, 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 Humongous.java
* @bug 7168848
* @summary G1: humongous object allocations should initiate marking cycles when necessary
* @run main/othervm -Xms100m -Xmx100m -XX:+PrintGC -XX:G1HeapRegionSize=1m -XX:+UseG1GC HumongousAlloc
*
*/
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;
import java.util.List;
public class HumongousAlloc {
public static byte[] dummy;
private static int sleepFreq = 40;
private static int sleepTime = 1000;
private static double size = 0.75;
private static int iterations = 50;
private static int MB = 1024 * 1024;
public static void allocate(int size, int sleepTime, int sleepFreq) throws InterruptedException {
System.out.println("Will allocate objects of size: " + size
+ " bytes and sleep for " + sleepTime
+ " ms after every " + sleepFreq + "th allocation.");
int count = 0;
while (count < iterations) {
for (int i = 0; i < sleepFreq; i++) {
dummy = new byte[size - 16];
}
Thread.sleep(sleepTime);
count++;
}
}
public static void main(String[] args) throws InterruptedException {
allocate((int) (size * MB), sleepTime, sleepFreq);
List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
for (GarbageCollectorMXBean collector : collectors) {
if (collector.getName().contains("G1 Old")) {
long count = collector.getCollectionCount();
if (count > 0) {
throw new RuntimeException("Failed: FullGCs should not have happened. The number of FullGC run is " + count);
}
else {
System.out.println("Passed.");
}
}
}
}
}

75
hotspot/test/gc/g1/TestHumongousAllocInitialMark.java Normal file
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@ -0,0 +1,75 @@
/*
* Copyright (c) 2012, 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 TestHumongousAllocInitialMark
* @bug 7168848
* @summary G1: humongous object allocations should initiate marking cycles when necessary
* @library /testlibrary
*/
import com.oracle.java.testlibrary.*;
public class TestHumongousAllocInitialMark {
private static final int heapSize = 200; // MB
private static final int heapRegionSize = 1; // MB
private static final int initiatingHeapOccupancyPercent = 50; // %
public static void main(String[] args) throws Exception {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
"-XX:+UseG1GC",
"-Xms" + heapSize + "m",
"-Xmx" + heapSize + "m",
"-XX:G1HeapRegionSize=" + heapRegionSize + "m",
"-XX:InitiatingHeapOccupancyPercent=" + initiatingHeapOccupancyPercent,
"-XX:+PrintGC",
HumongousObjectAllocator.class.getName());
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("GC pause (G1 Humongous Allocation) (young) (initial-mark)");
output.shouldNotContain("Full GC");
output.shouldHaveExitValue(0);
}
static class HumongousObjectAllocator {
private static byte[] dummy;
public static void main(String [] args) throws Exception {
// Make object size 75% of region size
final int humongousObjectSize =
(int)(heapRegionSize * 1024 * 1024 * 0.75);
// Number of objects to allocate to go above IHOP
final int humongousObjectAllocations =
(int)((heapSize * initiatingHeapOccupancyPercent / 100.0) / heapRegionSize) + 1;
// Allocate
for (int i = 1; i <= humongousObjectAllocations; i++) {
System.out.println("Allocating humongous object " + i + "/" + humongousObjectAllocations +
" of size " + humongousObjectSize + " bytes");
dummy = new byte[humongousObjectSize];
}
}
}
}