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 * @summary Test corner case that overflows malloc site hashtable bucket 27 * @requires sun.arch.data.model == "32" 28 * @key nmt jcmd stress 29 * @library /testlibrary /testlibrary/whitebox 30 * @build MallocSiteHashOverflow 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox 32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocSiteHashOverflow 33 */ 34 35 import com.oracle.java.testlibrary.*; 36 import sun.hotspot.WhiteBox; 37 38 public class MallocSiteHashOverflow { 39 40 public static void main(String args[]) throws Exception { 41 42 // Size of entries based on malloc tracking header defined in mallocTracker.hpp 43 // For 32-bit systems, create 257 malloc sites with the same hash bucket to overflow a hash bucket 44 long entries = 257; 45 46 OutputAnalyzer output; 47 WhiteBox wb = WhiteBox.getWhiteBox(); 48 int MAX_HASH_SIZE = wb.NMTGetHashSize(); 49 50 // Grab my own PID 51 String pid = Integer.toString(ProcessTools.getProcessId()); 52 ProcessBuilder pb = new ProcessBuilder(); 53 54 // Verify that current tracking level is "detail" 55 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "statistics"}); 56 output = new OutputAnalyzer(pb.start()); | 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 * @summary Test corner case that overflows malloc site hashtable bucket 27 * @requires sun.arch.data.model == "32" 28 * @key nmt jcmd stress 29 * @library /testlibrary /../../test/lib 30 * @build MallocSiteHashOverflow 31 * @run main ClassFileInstaller jdk.testlib.WhiteBox 32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocSiteHashOverflow 33 */ 34 35 import com.oracle.java.testlibrary.*; 36 import jdk.testlib.WhiteBox; 37 38 public class MallocSiteHashOverflow { 39 40 public static void main(String args[]) throws Exception { 41 42 // Size of entries based on malloc tracking header defined in mallocTracker.hpp 43 // For 32-bit systems, create 257 malloc sites with the same hash bucket to overflow a hash bucket 44 long entries = 257; 45 46 OutputAnalyzer output; 47 WhiteBox wb = WhiteBox.getWhiteBox(); 48 int MAX_HASH_SIZE = wb.NMTGetHashSize(); 49 50 // Grab my own PID 51 String pid = Integer.toString(ProcessTools.getProcessId()); 52 ProcessBuilder pb = new ProcessBuilder(); 53 54 // Verify that current tracking level is "detail" 55 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "statistics"}); 56 output = new OutputAnalyzer(pb.start()); |