39 import java.util.HashSet;
40 import java.util.Set;
41 import java.util.function.BiConsumer;
42 import java.util.function.Consumer;
43 import java.util.function.Predicate;
44 import java.util.stream.Collectors;
45
46
47 /**
48 * @test TestObjectGraphAfterGC
49 * @summary Checks that objects' graph behave as expected after gc
50 * @requires vm.gc.G1
51 * @requires vm.opt.ExplicitGCInvokesConcurrent != true
52 * @library /test/lib /
53 * @modules java.management java.base/jdk.internal.misc
54 * @build sun.hotspot.WhiteBox
55 *
56 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
57 * sun.hotspot.WhiteBox$WhiteBoxPermission
58 *
59 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
60 * -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=30000 -XX:G1MixedGCLiveThresholdPercent=100 -XX:G1HeapWastePercent=0
61 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_MIXED_GC.gc.log -XX:MaxTenuringThreshold=1
62 * -XX:G1MixedGCCountTarget=1 -XX:G1OldCSetRegionThresholdPercent=100 -XX:SurvivorRatio=1 -XX:InitiatingHeapOccupancyPercent=0
63 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC MIXED_GC
64 *
65 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
66 * -XX:G1HeapRegionSize=1M -Xlog:gc*=debug:file=TestObjectGraphAfterGC_YOUNG_GC.gc.log
67 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC YOUNG_GC
68 *
69 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
70 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC.gc.log
71 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC
72 *
73 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
74 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC_MEMORY_PRESSURE.gc.log
75 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC_MEMORY_PRESSURE
76 *
77 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
78 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC.gc.log -XX:MaxTenuringThreshold=16
79 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC
80 *
81 * @run main/othervm -Xms200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
82 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC_NO_SURV_ROOTS.gc.log -XX:MaxTenuringThreshold=1
83 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC_NO_SURV_ROOTS
84 *
85 */
86
87 /**
88 * Checks that objects' graph behave as expected after gc
89 * See README file for detailed info on test's logic
90 */
91 public class TestObjectGraphAfterGC {
92
93 private static final int simpleAllocationSize = 1024;
94
95 /**
96 * Entry point
97 *
98 * @param args - first argument - gc name
99 */
100 public static void main(String[] args) {
101
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39 import java.util.HashSet;
40 import java.util.Set;
41 import java.util.function.BiConsumer;
42 import java.util.function.Consumer;
43 import java.util.function.Predicate;
44 import java.util.stream.Collectors;
45
46
47 /**
48 * @test TestObjectGraphAfterGC
49 * @summary Checks that objects' graph behave as expected after gc
50 * @requires vm.gc.G1
51 * @requires vm.opt.ExplicitGCInvokesConcurrent != true
52 * @library /test/lib /
53 * @modules java.management java.base/jdk.internal.misc
54 * @build sun.hotspot.WhiteBox
55 *
56 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
57 * sun.hotspot.WhiteBox$WhiteBoxPermission
58 *
59 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
60 * -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=30000 -XX:G1MixedGCLiveThresholdPercent=100 -XX:G1HeapWastePercent=0
61 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_MIXED_GC.gc.log -XX:MaxTenuringThreshold=1
62 * -XX:G1MixedGCCountTarget=1 -XX:G1OldCSetRegionThresholdPercent=100 -XX:SurvivorRatio=1 -XX:InitiatingHeapOccupancyPercent=0
63 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC MIXED_GC
64 *
65 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
66 * -XX:G1HeapRegionSize=1M -Xlog:gc*=debug:file=TestObjectGraphAfterGC_YOUNG_GC.gc.log
67 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC YOUNG_GC
68 *
69 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
70 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC.gc.log
71 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC
72 *
73 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
74 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_FULL_GC_MEMORY_PRESSURE.gc.log
75 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC FULL_GC_MEMORY_PRESSURE
76 *
77 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
78 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC.gc.log -XX:MaxTenuringThreshold=16
79 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC
80 *
81 * @run main/othervm -Xms200M -Xmx200M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
82 * -XX:G1HeapRegionSize=1M -Xlog:gc=info:file=TestObjectGraphAfterGC_CMC_NO_SURV_ROOTS.gc.log -XX:MaxTenuringThreshold=1
83 * gc.g1.humongousObjects.objectGraphTest.TestObjectGraphAfterGC CMC_NO_SURV_ROOTS
84 *
85 */
86
87 /**
88 * Checks that objects' graph behave as expected after gc
89 * See README file for detailed info on test's logic
90 */
91 public class TestObjectGraphAfterGC {
92
93 private static final int simpleAllocationSize = 1024;
94
95 /**
96 * Entry point
97 *
98 * @param args - first argument - gc name
99 */
100 public static void main(String[] args) {
101
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