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 TestSmallHeap
28 * @requires vm.gc.Z & !vm.graal.enabled
29 * @summary Test ZGC with small heaps
30 * @library / /test/lib
31 * @run driver gc.z.TestSmallHeap 8M 16M 32M 64M 128M 256M 512M 1024M
32 */
33
34 import jdk.test.lib.process.ProcessTools;
35 import static gc.testlibrary.Allocation.blackHole;
36
37 public class TestSmallHeap {
38 public static class Test {
39 public static void main(String[] args) throws Exception {
40 final long maxCapacity = Runtime.getRuntime().maxMemory();
41 System.out.println("Max Capacity " + maxCapacity + " bytes");
42
43 // Allocate byte arrays of increasing length, so that
44 // all allocation paths (small/medium/large) are tested.
45 for (int length = 16; length <= maxCapacity / 16; length *= 2) {
46 System.out.println("Allocating " + length + " bytes");
47 blackHole(new byte[length]);
48 }
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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 TestSmallHeap
28 * @requires vm.gc.Z
29 * @summary Test ZGC with small heaps
30 * @library / /test/lib
31 * @run driver gc.z.TestSmallHeap 8M 16M 32M 64M 128M 256M 512M 1024M
32 */
33
34 import jdk.test.lib.process.ProcessTools;
35 import static gc.testlibrary.Allocation.blackHole;
36
37 public class TestSmallHeap {
38 public static class Test {
39 public static void main(String[] args) throws Exception {
40 final long maxCapacity = Runtime.getRuntime().maxMemory();
41 System.out.println("Max Capacity " + maxCapacity + " bytes");
42
43 // Allocate byte arrays of increasing length, so that
44 // all allocation paths (small/medium/large) are tested.
45 for (int length = 16; length <= maxCapacity / 16; length *= 2) {
46 System.out.println("Allocating " + length + " bytes");
47 blackHole(new byte[length]);
48 }
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