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src/hotspot/share/runtime/threadSMR.cpp

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rev 52821 : [mq]: 8214850-rename-vm_operations


  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 #include "precompiled.hpp"
  26 #include "logging/logStream.hpp"
  27 #include "memory/allocation.inline.hpp"
  28 #include "runtime/jniHandles.inline.hpp"
  29 #include "runtime/thread.inline.hpp"
  30 #include "runtime/threadSMR.inline.hpp"
  31 #include "runtime/vm_operations.hpp"
  32 #include "services/threadService.hpp"
  33 #include "utilities/copy.hpp"
  34 #include "utilities/globalDefinitions.hpp"
  35 #include "utilities/ostream.hpp"
  36 #include "utilities/resourceHash.hpp"
  37 #include "utilities/vmError.hpp"
  38 
  39 // The '_cnt', '_max' and '_times" fields are enabled via
  40 // -XX:+EnableThreadSMRStatistics:
  41 
  42 // # of parallel threads in _delete_lock->wait().
  43 // Impl note: Hard to imagine > 64K waiting threads so this could be 16-bit,
  44 // but there is no nice 16-bit _FORMAT support.
  45 uint                  ThreadsSMRSupport::_delete_lock_wait_cnt = 0;
  46 
  47 // Max # of parallel threads in _delete_lock->wait().
  48 // Impl note: See _delete_lock_wait_cnt note.
  49 uint                  ThreadsSMRSupport::_delete_lock_wait_max = 0;
  50 
  51 // Flag to indicate when an _delete_lock->notify() is needed.




  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 #include "precompiled.hpp"
  26 #include "logging/logStream.hpp"
  27 #include "memory/allocation.inline.hpp"
  28 #include "runtime/jniHandles.inline.hpp"
  29 #include "runtime/thread.inline.hpp"
  30 #include "runtime/threadSMR.inline.hpp"
  31 #include "runtime/vmOperations.hpp"
  32 #include "services/threadService.hpp"
  33 #include "utilities/copy.hpp"
  34 #include "utilities/globalDefinitions.hpp"
  35 #include "utilities/ostream.hpp"
  36 #include "utilities/resourceHash.hpp"
  37 #include "utilities/vmError.hpp"
  38 
  39 // The '_cnt', '_max' and '_times" fields are enabled via
  40 // -XX:+EnableThreadSMRStatistics:
  41 
  42 // # of parallel threads in _delete_lock->wait().
  43 // Impl note: Hard to imagine > 64K waiting threads so this could be 16-bit,
  44 // but there is no nice 16-bit _FORMAT support.
  45 uint                  ThreadsSMRSupport::_delete_lock_wait_cnt = 0;
  46 
  47 // Max # of parallel threads in _delete_lock->wait().
  48 // Impl note: See _delete_lock_wait_cnt note.
  49 uint                  ThreadsSMRSupport::_delete_lock_wait_max = 0;
  50 
  51 // Flag to indicate when an _delete_lock->notify() is needed.


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