15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 import java.util.concurrent.CyclicBarrier;
27
28 import static java.lang.System.currentTimeMillis;
29
30 public class MetaspaceTestOneArenaManyThreads extends MetaspaceTestWithThreads {
31
32 // Several threads allocate from a single arena.
33 // This mimicks several threads loading classes via the same class loader.
34
35
36 public MetaspaceTestOneArenaManyThreads(MetaspaceTestContext context, long testAllocationCeiling, int numThreads, int seconds) {
37 super(context, testAllocationCeiling, numThreads, seconds);
38 }
39
40 public void runTest() throws Exception {
41
42 long t_start = currentTimeMillis();
43 long t_stop = t_start + (seconds * 1000);
44
45 // We create a single arena, and n threads which will allocate from that single arena.
46
47 MetaspaceTestArena arena = context.createArena(RandomHelper.fiftyfifty(), testAllocationCeiling);
48 CyclicBarrier gate = new CyclicBarrier(numThreads + 1);
49
50 for (int i = 0; i < numThreads; i ++) {
51 RandomAllocator allocator = new RandomAllocator(arena);
52 RandomAllocatorThread thread = new RandomAllocatorThread(gate, allocator, i);
53 threads[i] = thread;
54 thread.start();
55 }
|
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 import java.util.concurrent.CyclicBarrier;
27
28 import static java.lang.System.currentTimeMillis;
29
30 public class MetaspaceTestOneArenaManyThreads extends MetaspaceTestWithThreads {
31
32 // Several threads allocate from a single arena.
33 // This mimicks several threads loading classes via the same class loader.
34
35 public MetaspaceTestOneArenaManyThreads(MetaspaceTestContext context, long testAllocationCeiling, int numThreads, int seconds) {
36 super(context, testAllocationCeiling, numThreads, seconds);
37 }
38
39 public void runTest() throws Exception {
40
41 long t_start = currentTimeMillis();
42 long t_stop = t_start + (seconds * 1000);
43
44 // We create a single arena, and n threads which will allocate from that single arena.
45
46 MetaspaceTestArena arena = context.createArena(RandomHelper.fiftyfifty(), testAllocationCeiling);
47 CyclicBarrier gate = new CyclicBarrier(numThreads + 1);
48
49 for (int i = 0; i < numThreads; i ++) {
50 RandomAllocator allocator = new RandomAllocator(arena);
51 RandomAllocatorThread thread = new RandomAllocatorThread(gate, allocator, i);
52 threads[i] = thread;
53 thread.start();
54 }
|