/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @key nmt jcmd
* @library /testlibrary /testlibrary/whitebox
* @build ThreadedMallocTestType
* @ignore
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedMallocTestType
*/
import com.oracle.java.testlibrary.*;
import sun.hotspot.WhiteBox;
public class ThreadedMallocTestType {
public static long memAlloc1;
public static long memAlloc2;
public static long memAlloc3;
public static void main(String args[]) throws Exception {
OutputAnalyzer output;
final WhiteBox wb = WhiteBox.getWhiteBox();
// Grab my own PID
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
Thread allocThread = new Thread() {
public void run() {
// Alloc memory using the WB api
memAlloc1 = wb.NMTMalloc(128 * 1024);
memAlloc2 = wb.NMTMalloc(256 * 1024);
memAlloc3 = wb.NMTMalloc(512 * 1024);
}
};
allocThread.start();
allocThread.join();
// Run 'jcmd <pid> VM.native_memory summary'
pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=896KB, committed=896KB)");
Thread freeThread = new Thread() {
public void run() {
// Free the memory allocated by NMTMalloc
wb.NMTFree(memAlloc1);
wb.NMTFree(memAlloc2);
wb.NMTFree(memAlloc3);
}
};
freeThread.start();
freeThread.join();
output = new OutputAnalyzer(pb.start());
output.shouldNotContain("Test (reserved=");
}
}