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 /* 25 * @test 26 * @summary Release uncommitted memory and make sure NMT handles it correctly 27 * @key nmt regression 28 * @library /testlibrary /test/lib 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @build ReleaseNoCommit 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=summary ReleaseNoCommit 34 */ 35 36 import jdk.test.lib.JDKToolFinder; 37 import jdk.test.lib.OutputAnalyzer; 38 import jdk.test.lib.ProcessTools; 39 40 import sun.hotspot.WhiteBox; 41 42 public class ReleaseNoCommit { 43 44 public static void main(String args[]) throws Exception { 45 WhiteBox wb = WhiteBox.getWhiteBox(); 46 long reserveSize = 256 * 1024; 47 long addr; 48 49 ProcessBuilder pb = new ProcessBuilder(); 50 OutputAnalyzer output; 51 // Grab my own PID 52 String pid = Long.toString(ProcessTools.getProcessId()); 53 54 addr = wb.NMTReserveMemory(reserveSize); 55 // Check for reserved 56 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"}); 57 output = new OutputAnalyzer(pb.start()); 58 output.shouldContain(" Test (reserved=256KB, committed=0KB)"); | 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 /* 25 * @test 26 * @summary Release uncommitted memory and make sure NMT handles it correctly 27 * @key nmt regression 28 * @library /test/lib 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @build sun.hotspot.WhiteBox 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=summary ReleaseNoCommit 34 */ 35 36 import jdk.test.lib.JDKToolFinder; 37 import jdk.test.lib.process.OutputAnalyzer; 38 import jdk.test.lib.process.ProcessTools; 39 40 import sun.hotspot.WhiteBox; 41 42 public class ReleaseNoCommit { 43 44 public static void main(String args[]) throws Exception { 45 WhiteBox wb = WhiteBox.getWhiteBox(); 46 long reserveSize = 256 * 1024; 47 long addr; 48 49 ProcessBuilder pb = new ProcessBuilder(); 50 OutputAnalyzer output; 51 // Grab my own PID 52 String pid = Long.toString(ProcessTools.getProcessId()); 53 54 addr = wb.NMTReserveMemory(reserveSize); 55 // Check for reserved 56 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"}); 57 output = new OutputAnalyzer(pb.start()); 58 output.shouldContain(" Test (reserved=256KB, committed=0KB)"); |