author | kzhaldyb |
Wed, 29 Jun 2016 18:40:28 +0300 | |
changeset 39618 | ced8c3f59678 |
parent 39414 | 4adf52148100 |
child 40631 | ed82623d7831 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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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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package gc.g1.humongousObjects.objectGraphTest; |
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|
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import jdk.test.lib.OutputAnalyzer; |
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import sun.hotspot.WhiteBox; |
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|
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import java.io.File; |
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import java.io.IOException; |
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import java.lang.ref.Reference; |
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import java.lang.ref.ReferenceQueue; |
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import java.lang.ref.SoftReference; |
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import java.lang.ref.WeakReference; |
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import java.nio.file.Files; |
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import java.util.Map; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.HashSet; |
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import java.util.Set; |
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import java.util.function.BiConsumer; |
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import java.util.function.Consumer; |
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import java.util.function.Predicate; |
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import java.util.stream.Collectors; |
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|
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|
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/** |
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* @test TestObjectGraphAfterGC |
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* @summary Checks that objects' graph behave as expected after gc |
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* @requires vm.gc.G1 |
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* @requires vm.opt.ExplicitGCInvokesConcurrent != true |
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* @library /testlibrary /test/lib / |
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* @modules java.management java.base/jdk.internal.misc |
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* @build sun.hotspot.WhiteBox |
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* gc.testlibrary.Helpers |
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* gc.g1.humongousObjects.objectGraphTest.GCTokens |
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* gc.g1.humongousObjects.objectGraphTest.ReferenceInfo |
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* gc.g1.humongousObjects.objectGraphTest.GC |
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* gc.g1.humongousObjects.objectGraphTest.ObjectGraph |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC |
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* |
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* @ignore 8156755 |
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* |
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox |
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* sun.hotspot.WhiteBox$WhiteBoxPermission |
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* |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=30000 -XX:G1MixedGCLiveThresholdPercent=100 -XX:G1HeapWastePercent=0 |
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* -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_MIXED_GC.gc.log -XX:MaxTenuringThreshold=1 |
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* -XX:G1MixedGCCountTarget=1 -XX:G1OldCSetRegionThresholdPercent=100 -XX:SurvivorRatio=1 -XX:InitiatingHeapOccupancyPercent=0 |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC MIXED_GC |
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* |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:G1HeapRegionSize=1M -Xlog:gc*=debug:file=TestObjectGraphAfterGC_YOUNG_GC.gc.log |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC YOUNG_GC |
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* |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC.gc.log |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC |
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* |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC_MEMORY_PRESSURE.gc.log |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC_MEMORY_PRESSURE |
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* |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC.gc.log -XX:MaxTenuringThreshold=16 |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC |
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* @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. |
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* -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC_NO_SURV_ROOTS.gc.log -XX:MaxTenuringThreshold=1 |
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* gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC_NO_SURV_ROOTS |
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* |
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*/ |
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/** |
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* Checks that objects' graph behave as expected after gc |
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* See README file for detailed info on test's logic |
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*/ |
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public class TestObjectGraphAfterGC { |
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private static final int simpleAllocationSize = 1024; |
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/** |
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* Entry point |
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* |
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* @param args - first argument - gc name |
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*/ |
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public static void main(String[] args) { |
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if (args.length < 1) { |
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throw new Error("Expected gc name wasn't provided as command line argument"); |
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} |
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GC gcType = GC.valueOf(args[0].toUpperCase()); |
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|
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System.out.println("Testing " + gcType.name()); |
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|
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TestcaseData.getPregeneratedTestcases().stream().forEach(testcase -> { |
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System.out.println("Testcase: " + testcase); |
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|
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try { |
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TestObjectGraphAfterGC.doTesting(testcase, gcType.get(), gcType.getChecker(), |
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gcType.getGcLogName(TestObjectGraphAfterGC.class.getSimpleName()), gcType.shouldContain(), |
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gcType.shouldNotContain()); |
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} catch (IOException e) { |
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throw new Error("Problems trying to find or open " + TestObjectGraphAfterGC.class.getSimpleName() |
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+ ".gc.log", e); |
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} |
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System.out.println(" Passed"); |
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}); |
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} |
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|
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/** |
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* Implements testing with 3 methods - allocateObjectGraph, checkResults and checkGCLog |
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* |
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* @param testcaseData testcase in the following notation: |
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* H - humongous node |
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* S - non-humongous node |
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* s - external soft reference |
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* w - external weak reference |
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* Hs->Sw - 1st node is humongous, externally soft referenced and strong references to |
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* non-humongous node 2 which is externally weak referenced |
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* H->1 - humongous node connects to the first node of chain |
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* @param doGC method that initiates gc |
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* @param checker consumer that checks node's state after gc and throws Error if it's wrong |
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* @param gcLogName name of gc log |
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* @param shouldContain list of tokens that should be contained in gc log |
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* @param shouldNotContain list of tokens that should not be contained in gc log |
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* @throws IOException if there are some issues with gc log |
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*/ |
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private static void doTesting(String testcaseData, Runnable doGC, Consumer<ReferenceInfo<Object[]>> checker, |
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String gcLogName, List<String> shouldContain, List<String> shouldNotContain) |
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throws IOException { |
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Set<ReferenceInfo<Object[]>> nodeData = allocateObjectGraph(testcaseData); |
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doGC.run(); |
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checkResults(nodeData, checker); |
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checkGCLog(gcLogName, shouldContain, shouldNotContain); |
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} |
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|
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/** |
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* Allocates a number of objects of humongous and regular size and links then with strong references. |
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* How many objects to create, their size and links between them is encoded in the given parameters. |
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* As the result an object graph will be created. |
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* For the testing purpose for each created object (a graph node) an extra ReferenceInfo object will be created. |
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* The ReferenceInfo instances will contain either weak or soft reference to the graph node. |
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* |
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* @param testcaseData testcase in the |
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* <p> |
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* H - humongous node |
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* S - non-humongous node |
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* s - external soft reference |
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* w - external weak reference |
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* Hs->Sw - 1st node is humongous, externally soft referenced and strong references to |
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* non-humongous node 2 which is externally weak referenced |
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* H->1 - humongous node connects to the first node of chain |
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* @return set of ReferenceInfo objects containing weak/soft reference to the graph node and other data on how |
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* objects should behave after gc |
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*/ |
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private static Set<ReferenceInfo<Object[]>> allocateObjectGraph(String testcaseData) { |
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Map<Object[], String> nodeIds = new HashMap<>(); |
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Set<Object[]> humongousNodes = new HashSet<>(); |
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Set<Object[]> externalSoftReferenced = new HashSet<>(); |
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Set<Object[]> externalWeakReferenced = new HashSet<>(); |
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|
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Map<Predicate<TestcaseData.FinalParsedNode>, BiConsumer<TestcaseData.FinalParsedNode, Object[][]>> visitors |
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= new HashMap<>(); |
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|
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visitors.put((parsedNode -> true), |
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(parsedNode, objects) -> nodeIds.put(objects[Integer.valueOf(parsedNode.id)], parsedNode.id) |
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); |
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|
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visitors.put((parsedNode -> parsedNode.isHumongous), |
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(parsedNode, objects) -> humongousNodes.add(objects[Integer.valueOf(parsedNode.id)]) |
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); |
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|
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visitors.put(parsedNode -> parsedNode.getReferencesTypes().stream(). |
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anyMatch(referenceType -> referenceType == ObjectGraph.ReferenceType.SOFT), |
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(parsedNode, objects) -> externalSoftReferenced.add(objects[Integer.valueOf(parsedNode.id)]) |
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); |
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|
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visitors.put(parsedNode -> parsedNode.getReferencesTypes().stream(). |
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anyMatch(referenceType -> referenceType == ObjectGraph.ReferenceType.WEAK), |
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(parsedNode, objects) -> externalWeakReferenced.add(objects[Integer.valueOf(parsedNode.id)]) |
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); |
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|
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List<TestcaseData.FinalParsedNode> internalParsedNodes = TestcaseData.parse(testcaseData); |
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|
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Object[] root = ObjectGraph.generateObjectNodes(internalParsedNodes, visitors, |
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WhiteBox.getWhiteBox().g1RegionSize(), simpleAllocationSize); |
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|
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ObjectGraph.propagateTransitiveProperty(humongousNodes, humongousNodes::add); |
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Set<Object[]> effectiveSoftReferenced = new HashSet<>(); |
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ObjectGraph.propagateTransitiveProperty(externalSoftReferenced, effectiveSoftReferenced::add); |
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|
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// Create external references |
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ReferenceQueue<Object[]> referenceQueue = new ReferenceQueue<>(); |
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Set<Reference<Object[]>> externalRefs = new HashSet<>(); |
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|
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externalWeakReferenced.stream() |
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.forEach(objects -> externalRefs.add(new WeakReference<>(objects, referenceQueue))); |
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externalSoftReferenced.stream() |
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.forEach(objects -> externalRefs.add(new SoftReference<>(objects, referenceQueue))); |
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|
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return externalRefs.stream() |
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.map(ref -> new ReferenceInfo<>(ref, testcaseData, nodeIds.get(ref.get()), |
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effectiveSoftReferenced.contains(ref.get()), humongousNodes.contains(ref.get()))) |
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.collect(Collectors.toSet()); |
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|
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} |
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|
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/** |
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* Checks that object' state after gc is as expected |
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* |
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* @param nodeData array with information about nodes |
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* @param checker consumer that checks node's state after gc and throws Error if it's wrong |
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*/ |
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private static void checkResults(Set<ReferenceInfo<Object[]>> nodeData, Consumer<ReferenceInfo<Object[]>> checker) { |
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nodeData.stream().forEach(checker::accept); |
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} |
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/** |
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* Checks that gc log contains what we expected and does not contain what we didn't expect |
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* |
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* @param gcLogName gc log name |
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* @param shouldContain list of tokens that should be contained in gc log |
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* @param shouldNotContain list of tokens that should not be contained in gc log |
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* @throws IOException if there are some issues with gc log |
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*/ |
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private static void checkGCLog(String gcLogName, List<String> shouldContain, List<String> shouldNotContain) |
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throws IOException { |
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|
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if (gcLogName == null) { |
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return; |
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} |
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String gcLog = new String(Files.readAllBytes(new File(gcLogName).toPath())); |
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OutputAnalyzer outputAnalyzer = new OutputAnalyzer(gcLog, ""); |
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shouldContain.stream().forEach(outputAnalyzer::shouldContain); |
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shouldNotContain.stream().forEach(outputAnalyzer::shouldNotContain); |
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} |
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} |