MallocTestType.java revision 4437
/*
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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* accompanied this code).
*
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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/*
* @test
* @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
* @key nmt jcmd
* @library /testlibrary /testlibrary/whitebox
* @build MallocTestType
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
*/
public class MallocTestType {
// Grab my own PID
// Use WB API to alloc and free with the mtTest type
// Use WB API to ensure that all data has been merged before we continue
if (!wb.NMTWaitForDataMerge()) {
throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
}
// Run 'jcmd <pid> VM.native_memory summary'
// Free the memory allocated by NMTAllocTest
// Use WB API to ensure that all data has been merged before we continue
if (!wb.NMTWaitForDataMerge()) {
throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
}
}
}