TestAllocationInEden.java

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/**
 * @test
 * @bug 8031323
 * @summary Verify that object's alignment in eden space is not affected by
 *          SurvivorAlignmentInBytes option.
 * @requires vm.gc != "Shenandoah"
 * @library /testlibrary /testlibrary/whitebox
 * @build TestAllocationInEden SurvivorAlignmentTestMain AlignmentHelper
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=32 -XX:-UseTLAB
 *                   -XX:OldSize=128m -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 9 EDEN
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=32 -XX:-UseTLAB
 *                   -XX:OldSize=128m -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 47 EDEN
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=64 -XX:-UseTLAB
 *                   -XX:OldSize=128m  -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 9 EDEN
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=64 -XX:-UseTLAB
 *                   -XX:OldSize=128m  -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 87 EDEN
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=128 -XX:-UseTLAB
 *                   -XX:OldSize=128m -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 9 EDEN
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
 *                   -XX:SurvivorAlignmentInBytes=128 -XX:-UseTLAB
 *                   -XX:OldSize=128m -XX:MaxHeapSize=192m
 *                   -XX:-ExplicitGCInvokesConcurrent
 *                   TestAllocationInEden 10m 147 EDEN
 */
public class TestAllocationInEden {
    public static void main(String args[]) {
        SurvivorAlignmentTestMain test
                = SurvivorAlignmentTestMain.fromArgs(args);
        System.out.println(test);

        long expectedMemoryUsage = test.getExpectedMemoryUsage();
        test.baselineMemoryAllocation();
        System.gc();

        test.allocate();

        test.verifyMemoryUsage(expectedMemoryUsage);
    }
}