test/hotspot/jtreg/gc/stress/gcbasher/TestGCBasherWithShenandoah.java

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  /*
   * Copyright (c) 2016, 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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   * @run main/othervm/timeout=200 -Xlog:gc*=info,nmethod+barrier=trace -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
   *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
   *      -XX:+DeoptimizeNMethodBarriersALot -XX:-Inline
   *      gc.stress.gcbasher.TestGCBasherWithShenandoah 120000
   */
+ /*
+  * @test id=generational
+  * @key stress
+  * @library /
+  * @requires vm.gc.Shenandoah
+  * @requires vm.flavor == "server" & !vm.emulatedClient
+  * @summary Stress the Shenandoah GC by trying to make old objects more likely to be garbage than young objects.
+  *
+  * @run main/othervm/timeout=200 -Xlog:gc*=info -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+  *      -XX:+ShenandoahVerify
+  *      gc.stress.gcbasher.TestGCBasherWithShenandoah 120000
+  *
+  * @run main/othervm/timeout=200 -Xlog:gc*=info -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+  *      gc.stress.gcbasher.TestGCBasherWithShenandoah 120000
+  */
+ 
+  /*
+   * @test id=generational-deopt-nmethod
+   * @key stress
+   * @library /
+   * @requires vm.gc.Shenandoah
+   * @requires vm.flavor == "server" & !vm.emulatedClient & vm.opt.ClassUnloading != false
+   * @summary Stress Shenandoah GC with nmethod barrier forced deoptimization enabled.
+   *
+   * @run main/othervm/timeout=200 -Xlog:gc*=info,nmethod+barrier=trace -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+   *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+   *      -XX:+DeoptimizeNMethodBarriersALot -XX:-Inline
+   *      -XX:+ShenandoahVerify
+   *      gc.stress.gcbasher.TestGCBasherWithShenandoah 120000
+   *
+   * @run main/othervm/timeout=200 -Xlog:gc*=info,nmethod+barrier=trace -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+   *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+   *      -XX:+DeoptimizeNMethodBarriersALot -XX:-Inline
+   *      gc.stress.gcbasher.TestGCBasherWithShenandoah 120000
+   */
  
  public class TestGCBasherWithShenandoah {
      public static void main(String[] args) throws IOException {
          TestGCBasher.main(args);
      }