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test/runtime/Metaspace/FragmentMetaspace.java

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   7  * published by the Free Software Foundation.
   8  *
   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 /**
  25  * @test
  26  * @library /runtime/testlibrary
  27  * @build GeneratedClassLoader
  28  * @run main/othervm/timeout=200 -Xmx300m FragmentMetaspace
  29  */
  30 
  31 import java.io.IOException;
  32 
  33 /**
  34  * Test that tries to fragment the native memory used by class loaders.
  35  * This test creates class loaders that load classes of increasing size for every
  36  * iteration. By increasing the size of the class meta data needed for every iteration
  37  * we stress the subsystem for allocating native memory for meta data.
  38  */
  39 public class FragmentMetaspace {
  40 
  41     public static Class<?> c;
  42 
  43     public static void main(String... args) {
  44         runGrowing(Long.valueOf(System.getProperty("time", "80000")),
  45             Integer.valueOf(System.getProperty("iterations", "200")));
  46         // try to clean up and unload classes to decrease
  47         // class verification time in debug vm




   7  * published by the Free Software Foundation.
   8  *
   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 /**
  25  * @test
  26  * @library /runtime/testlibrary
  27  * @build com.oracle.java.testlibrary.* GeneratedClassLoader
  28  * @run main/othervm/timeout=200 -Xmx300m FragmentMetaspace
  29  */
  30 
  31 import java.io.IOException;
  32 
  33 /**
  34  * Test that tries to fragment the native memory used by class loaders.
  35  * This test creates class loaders that load classes of increasing size for every
  36  * iteration. By increasing the size of the class meta data needed for every iteration
  37  * we stress the subsystem for allocating native memory for meta data.
  38  */
  39 public class FragmentMetaspace {
  40 
  41     public static Class<?> c;
  42 
  43     public static void main(String... args) {
  44         runGrowing(Long.valueOf(System.getProperty("time", "80000")),
  45             Integer.valueOf(System.getProperty("iterations", "200")));
  46         // try to clean up and unload classes to decrease
  47         // class verification time in debug vm


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