test/hotspot/jtreg/gc/shenandoah/TestElasticTLAB.java

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  /*
   * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
+  * Copyright Amazon.com Inc. 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.

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   * questions.
   *
   */
  
  /*
!  * @test
   * @key randomness
   * @summary Test that Shenandoah is able to work with elastic TLABs
   * @requires vm.gc.Shenandoah
   * @library /test/lib
   *
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   * questions.
   *
   */
  
  /*
!  * @test id=default
   * @key randomness
   * @summary Test that Shenandoah is able to work with elastic TLABs
   * @requires vm.gc.Shenandoah
   * @library /test/lib
   *

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   * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+UseTLAB -XX:-ShenandoahElasticTLAB                       TestElasticTLAB
   * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+UseTLAB -XX:+ShenandoahElasticTLAB -XX:+ShenandoahVerify TestElasticTLAB
   * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+UseTLAB -XX:+ShenandoahElasticTLAB                       TestElasticTLAB
   */
  
+ /*
+  * @test id=generational
+  * @key randomness
+  * @summary Test that Shenandoah is able to work with elastic TLABs
+  * @requires vm.gc.Shenandoah
+  * @library /test/lib
+  *
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:-UseTLAB -XX:-ShenandoahElasticTLAB -XX:+ShenandoahVerify TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:-UseTLAB -XX:-ShenandoahElasticTLAB                       TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:-UseTLAB -XX:+ShenandoahElasticTLAB -XX:+ShenandoahVerify TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:-UseTLAB -XX:+ShenandoahElasticTLAB                       TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:+UseTLAB -XX:-ShenandoahElasticTLAB -XX:+ShenandoahVerify TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:+UseTLAB -XX:-ShenandoahElasticTLAB                       TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:+UseTLAB -XX:+ShenandoahElasticTLAB -XX:+ShenandoahVerify TestElasticTLAB
+  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx1g -XX:+UseTLAB -XX:+ShenandoahElasticTLAB                       TestElasticTLAB
+  */
+ 
  import java.util.Random;
  import jdk.test.lib.Utils;
  
  public class TestElasticTLAB {