9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package gc.epsilon;
  25 
  26 /**
  27  * @test TestElasticTLAB
  28  * @key randomness
  29  * @requires vm.gc.Epsilon & !vm.graal.enabled
  30  * @summary Epsilon is able to work with/without elastic TLABs
  31  * @library /test/lib
  32  *
  33  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:-EpsilonElasticTLAB                               gc.epsilon.TestElasticTLAB
  34  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=1   gc.epsilon.TestElasticTLAB
  35  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=1.1 gc.epsilon.TestElasticTLAB
  36  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=2.0 gc.epsilon.TestElasticTLAB
  37  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=42  gc.epsilon.TestElasticTLAB
  38  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=100 gc.epsilon.TestElasticTLAB
  39  */
  40 
  41 import java.util.Random;
  42 import jdk.test.lib.Utils;
  43 
  44 public class TestElasticTLAB {
  45   static int COUNT = Integer.getInteger("count", 3000); // ~500 MB allocation
  46 
  47   static byte[][] arr;
  48 
  49   public static void main(String[] args) throws Exception {

   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package gc.epsilon;
  25 
  26 /**
  27  * @test TestElasticTLAB
  28  * @key randomness
  29  * @requires vm.gc.Epsilon
  30  * @summary Epsilon is able to work with/without elastic TLABs
  31  * @library /test/lib
  32  *
  33  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:-EpsilonElasticTLAB                               gc.epsilon.TestElasticTLAB
  34  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=1   gc.epsilon.TestElasticTLAB
  35  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=1.1 gc.epsilon.TestElasticTLAB
  36  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=2.0 gc.epsilon.TestElasticTLAB
  37  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=42  gc.epsilon.TestElasticTLAB
  38  * @run main/othervm -Xmx1g -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -XX:+EpsilonElasticTLAB -XX:EpsilonTLABElasticity=100 gc.epsilon.TestElasticTLAB
  39  */
  40 
  41 import java.util.Random;
  42 import jdk.test.lib.Utils;
  43 
  44 public class TestElasticTLAB {
  45   static int COUNT = Integer.getInteger("count", 3000); // ~500 MB allocation
  46 
  47   static byte[][] arr;
  48 
  49   public static void main(String[] args) throws Exception {