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 package gc.z;
  25 
  26 /*
  27  * @test TestPageCacheFlush
  28  * @requires vm.gc.Z & !vm.graal.enabled
  29  * @summary Test ZGC page cache flushing
  30  * @library /test/lib
  31  * @run driver gc.z.TestPageCacheFlush
  32  */
  33 
  34 import java.util.LinkedList;
  35 import jdk.test.lib.process.ProcessTools;
  36 
  37 public class TestPageCacheFlush {
  38     static class Test {
  39         private static final int K = 1024;
  40         private static final int M = K * K;
  41         private static volatile LinkedList<byte[]> keepAlive;
  42 
  43         public static void fillPageCache(int size) {
  44             System.out.println("Begin allocate (" + size + ")");
  45 
  46             keepAlive = new LinkedList<>();
  47 
  48             try {

   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 package gc.z;
  25 
  26 /*
  27  * @test TestPageCacheFlush
  28  * @requires vm.gc.Z
  29  * @summary Test ZGC page cache flushing
  30  * @library /test/lib
  31  * @run driver gc.z.TestPageCacheFlush
  32  */
  33 
  34 import java.util.LinkedList;
  35 import jdk.test.lib.process.ProcessTools;
  36 
  37 public class TestPageCacheFlush {
  38     static class Test {
  39         private static final int K = 1024;
  40         private static final int M = K * K;
  41         private static volatile LinkedList<byte[]> keepAlive;
  42 
  43         public static void fillPageCache(int size) {
  44             System.out.println("Begin allocate (" + size + ")");
  45 
  46             keepAlive = new LinkedList<>();
  47 
  48             try {