truffle: test/gc/g1/TestShrinkDefragmentedHeap.java annotate

annotate test/gc/g1/TestShrinkDefragmentedHeap.java @ 20623:7a6313074325

8064716: TestHumongousShrinkHeap.java can not be run with -XX:+ExplicitGCInvokesConcurrent 8062957: Heap is not shrunk when deallocating under memory pressure Summary: Added explicit -XX:-ExplicitGCInvokesConcurrent to invocations Reviewed-by: brutisso, tschatzl

author	azakharov
date	Fri, 14 Nov 2014 17:39:07 +0400
parents	df66e3a3c4c2
children

rev	line source
20460 df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	1 /*
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	4 *
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	7 * published by the Free Software Foundation.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	8 *
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	13 * accompanied this code).
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	14 *
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	18 *
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	21 * questions.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	22 */
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	23
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	24 /**
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	25 * @test TestShrinkDefragmentedHeap
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	26 * @bug 8038423
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	27 * @summary Verify that heap shrinks after GC in the presence of fragmentation due to humongous objects
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	28 * 1. allocate small objects mixed with humongous ones
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	29 * "ssssHssssHssssHssssHssssHssssHssssH"
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	30 * 2. release all allocated object except the last humongous one
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	31 * "..................................H"
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	32 * 3. invoke gc and check that memory returned to the system (amount of committed memory got down)
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	33 *
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	34 * @library /testlibrary
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	35 */
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	36 import java.lang.management.ManagementFactory;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	37 import java.lang.management.MemoryUsage;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	38 import java.util.ArrayList;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	39 import java.util.List;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	40 import sun.management.ManagementFactoryHelper;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	41 import static com.oracle.java.testlibrary.Asserts.*;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	42 import com.oracle.java.testlibrary.ProcessTools;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	43 import com.oracle.java.testlibrary.OutputAnalyzer;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	44
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	45 public class TestShrinkDefragmentedHeap {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	46 // Since we store all the small objects, they become old and old regions are also allocated at the bottom of the heap
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	47 // together with humongous regions. So if there are a lot of old regions in the lower part of the heap,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	48 // the humongous regions will be allocated in the upper part of the heap anyway.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	49 // To avoid this the Eden needs to be big enough to fit all the small objects.
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	50 private static final int INITIAL_HEAP_SIZE = 200 * 1024 * 1024;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	51 private static final int MINIMAL_YOUNG_SIZE = 190 * 1024 * 1024;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	52 private static final int REGION_SIZE = 1 * 1024 * 1024;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	53
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	54 public static void main(String[] args) throws Exception, Throwable {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	55 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	56 "-XX:InitialHeapSize=" + INITIAL_HEAP_SIZE,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	57 "-Xmn" + MINIMAL_YOUNG_SIZE,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	58 "-XX:MinHeapFreeRatio=10",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	59 "-XX:MaxHeapFreeRatio=11",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	60 "-XX:+UseG1GC",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	61 "-XX:G1HeapRegionSize=" + REGION_SIZE,
20623 7a6313074325 8064716: TestHumongousShrinkHeap.java can not be run with -XX:+ExplicitGCInvokesConcurrent azakharov parents: 20460 diff changeset	62 "-XX:-ExplicitGCInvokesConcurrent",
20460 df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	63 "-verbose:gc",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	64 GCTest.class.getName()
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	65 );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	66
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	67 OutputAnalyzer output = ProcessTools.executeProcess(pb);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	68 output.shouldHaveExitValue(0);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	69 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	70
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	71 static class GCTest {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	72
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	73 private static final String MIN_FREE_RATIO_FLAG_NAME = "MinHeapFreeRatio";
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	74 private static final String MAX_FREE_RATIO_FLAG_NAME = "MaxHeapFreeRatio";
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	75 private static final String NEW_SIZE_FLAG_NAME = "NewSize";
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	76
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	77 private static final ArrayList<ArrayList<byte[]>> garbage = new ArrayList<>();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	78
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	79 private static final int SMALL_OBJS_SIZE = 10 * 1024; // 10kB
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	80 private static final int SMALL_OBJS_COUNT = MINIMAL_YOUNG_SIZE / (SMALL_OBJS_SIZE-1);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	81 private static final int ALLOCATE_COUNT = 3;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	82 // try to put all humongous object into gap between min young size and initial heap size
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	83 // to avoid implicit GCs
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	84 private static final int HUMONG_OBJS_SIZE = (int) Math.max(
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	85 (INITIAL_HEAP_SIZE - MINIMAL_YOUNG_SIZE) / ALLOCATE_COUNT / 4,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	86 REGION_SIZE * 1.1
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	87 );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	88
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	89 private static final long initialHeapSize = getHeapMemoryUsage().getUsed();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	90
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	91 public static void main(String[] args) throws InterruptedException {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	92 new GCTest().test();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	93 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	94
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	95 private void test() throws InterruptedException {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	96 MemoryUsagePrinter.printMemoryUsage("init");
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	97
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	98 allocate();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	99 System.gc();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	100 MemoryUsage muFull = getHeapMemoryUsage();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	101 MemoryUsagePrinter.printMemoryUsage("allocated");
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	102
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	103 free();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	104 //Thread.sleep(1000); // sleep before measures due lags in JMX
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	105 MemoryUsage muFree = getHeapMemoryUsage();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	106 MemoryUsagePrinter.printMemoryUsage("free");
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	107
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	108 assertLessThan(muFree.getCommitted(), muFull.getCommitted(), prepareMessageCommittedIsNotLess() );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	109 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	110
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	111 private void allocate() {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	112 System.out.format("Will allocate objects of small size = %s and humongous size = %s",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	113 MemoryUsagePrinter.humanReadableByteCount(SMALL_OBJS_SIZE, false),
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	114 MemoryUsagePrinter.humanReadableByteCount(HUMONG_OBJS_SIZE, false)
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	115 );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	116
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	117 for (int i = 0; i < ALLOCATE_COUNT; i++) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	118 ArrayList<byte[]> stuff = new ArrayList<>();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	119 allocateList(stuff, SMALL_OBJS_COUNT / ALLOCATE_COUNT, SMALL_OBJS_SIZE);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	120 garbage.add(stuff);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	121
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	122 ArrayList<byte[]> humongousStuff = new ArrayList<>();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	123 allocateList(humongousStuff, 4, HUMONG_OBJS_SIZE);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	124 garbage.add(humongousStuff);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	125 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	126 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	127
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	128 private void free() {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	129 // do not free last one list
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	130 garbage.subList(0, garbage.size() - 1).clear();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	131
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	132 // do not free last one element from last list
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	133 ArrayList stuff = garbage.get(garbage.size() - 1);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	134 if (stuff.size() > 1) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	135 stuff.subList(0, stuff.size() - 1).clear();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	136 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	137 System.gc();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	138 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	139
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	140 private String prepareMessageCommittedIsNotLess() {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	141 return String.format(
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	142 "committed free heap size is not less than committed full heap size, heap hasn't been shrunk?%n"
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	143 + "%s = %s%n%s = %s",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	144 MIN_FREE_RATIO_FLAG_NAME,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	145 ManagementFactoryHelper.getDiagnosticMXBean().getVMOption(MIN_FREE_RATIO_FLAG_NAME).getValue(),
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	146 MAX_FREE_RATIO_FLAG_NAME,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	147 ManagementFactoryHelper.getDiagnosticMXBean().getVMOption(MAX_FREE_RATIO_FLAG_NAME).getValue()
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	148 );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	149 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	150
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	151 private static void allocateList(List garbage, int count, int size) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	152 for (int i = 0; i < count; i++) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	153 garbage.add(new byte[size]);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	154 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	155 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	156 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	157
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	158 static MemoryUsage getHeapMemoryUsage() {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	159 return ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	160 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	161
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	162 /**
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	163 * Prints memory usage to standard output
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	164 */
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	165 static class MemoryUsagePrinter {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	166
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	167 public static String humanReadableByteCount(long bytes, boolean si) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	168 int unit = si ? 1000 : 1024;
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	169 if (bytes < unit) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	170 return bytes + " B";
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	171 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	172 int exp = (int) (Math.log(bytes) / Math.log(unit));
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	173 String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1) + (si ? "" : "i");
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	174 return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	175 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	176
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	177 public static void printMemoryUsage(String label) {
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	178 MemoryUsage memusage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	179 float freeratio = 1f - (float) memusage.getUsed() / memusage.getCommitted();
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	180 System.out.format("[%-24s] init: %-7s, used: %-7s, comm: %-7s, freeRatio ~= %.1f%%%n",
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	181 label,
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	182 humanReadableByteCount(memusage.getInit(), false),
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	183 humanReadableByteCount(memusage.getUsed(), false),
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	184 humanReadableByteCount(memusage.getCommitted(), false),
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	185 freeratio * 100
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	186 );
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	187 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	188 }
df66e3a3c4c2 8041946: CMM Testing: 8u40 an allocated humongous object at the end of the heap should not prevents shrinking the heap jwilhelm parents: diff changeset	189 }

Mercurial > hg > truffle

annotate test/gc/g1/TestShrinkDefragmentedHeap.java @ 20623:7a6313074325