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test/runtime/NMT/VirtualAllocCommitUncommitRecommit.java

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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 /*
  25  * @test
  26  * @summary Test reserve/commit/uncommit/release of virtual memory and that we track it correctly
  27  * @key nmt jcmd
  28  * @library /testlibrary /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @build VirtualAllocCommitUncommitRecommit
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail VirtualAllocCommitUncommitRecommit
  34  *
  35  */
  36 
  37 import jdk.test.lib.*;


  38 
  39 import sun.hotspot.WhiteBox;
  40 
  41 public class VirtualAllocCommitUncommitRecommit {
  42 
  43     public static WhiteBox wb = WhiteBox.getWhiteBox();
  44 
  45     public static void main(String args[]) throws Exception {
  46         OutputAnalyzer output;
  47         long commitSize = 128 * 1024; // 128KB
  48         long reserveSize = 4 * 1024 * 1024; // 4096KB
  49         long addr;
  50 
  51         String pid = Long.toString(ProcessTools.getProcessId());
  52         ProcessBuilder pb = new ProcessBuilder();
  53 
  54         // reserve
  55         addr = wb.NMTReserveMemory(reserveSize);
  56         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
  57                 "VM.native_memory", "detail" });




   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 Test reserve/commit/uncommit/release of virtual memory and that we track it correctly
  27  * @key nmt jcmd
  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=detail VirtualAllocCommitUncommitRecommit
  34  *
  35  */
  36 
  37 import jdk.test.lib.process.ProcessTools;
  38 import jdk.test.lib.process.OutputAnalyzer;
  39 import jdk.test.lib.JDKToolFinder;
  40 
  41 import sun.hotspot.WhiteBox;
  42 
  43 public class VirtualAllocCommitUncommitRecommit {
  44 
  45     public static WhiteBox wb = WhiteBox.getWhiteBox();
  46 
  47     public static void main(String args[]) throws Exception {
  48         OutputAnalyzer output;
  49         long commitSize = 128 * 1024; // 128KB
  50         long reserveSize = 4 * 1024 * 1024; // 4096KB
  51         long addr;
  52 
  53         String pid = Long.toString(ProcessTools.getProcessId());
  54         ProcessBuilder pb = new ProcessBuilder();
  55 
  56         // reserve
  57         addr = wb.NMTReserveMemory(reserveSize);
  58         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
  59                 "VM.native_memory", "detail" });


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