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 DisableResizePLAB
26 * @key gc
27 * @bug 8060467
28 * @author filipp.zhinkin@oracle.com, john.coomes@oracle.com
29 * @requires vm.gc=="ConcMarkSweep" | vm.gc=="null"
30 * @summary Run CMS with PLAB resizing disabled and a small OldPLABSize
31 * @run main/othervm -XX:+UseConcMarkSweepGC -XX:-ResizePLAB -XX:OldPLABSize=1k -Xmx256m -XX:+PrintGCDetails DisableResizePLAB
32 */
33
34 public class DisableResizePLAB {
35 public static void main(String args[]) throws Exception {
36 Object garbage[] = new Object[1_000];
37 for (int i = 0; i < garbage.length; i++) {
38 garbage[i] = new byte[0];
39 }
40 long startTime = System.currentTimeMillis();
41 while (System.currentTimeMillis() - startTime < 10_000) {
42 Object o = new byte[1024];
43 }
44 }
45 }
|
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 DisableResizePLAB
26 * @key gc
27 * @bug 8060467
28 * @author filipp.zhinkin@oracle.com, john.coomes@oracle.com
29 * @requires vm.gc=="ConcMarkSweep" | vm.gc=="null"
30 * @summary Run CMS with PLAB resizing disabled and a small OldPLABSize
31 * @run main/othervm -XX:+UseConcMarkSweepGC -XX:-ResizePLAB -XX:OldPLABSize=1k -Xmx256m -Xlog:gc=debug DisableResizePLAB
32 */
33
34 public class DisableResizePLAB {
35 public static void main(String args[]) throws Exception {
36 Object garbage[] = new Object[1_000];
37 for (int i = 0; i < garbage.length; i++) {
38 garbage[i] = new byte[0];
39 }
40 long startTime = System.currentTimeMillis();
41 while (System.currentTimeMillis() - startTime < 10_000) {
42 Object o = new byte[1024];
43 }
44 }
45 }
|