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src/hotspot/share/gc/g1/g1ConcurrentStartToMixedTimeTracker.hpp

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rev 60060 : [mq]: 8210462-lkorinth-review


   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 #ifndef SHARE_GC_G1_G1CONCURRENTSTARTTOMIXEDTIMETRACKER_HPP
  26 #define SHARE_GC_G1_G1CONCURRENTSTARTTOMIXEDTIMETRACKER_HPP
  27 
  28 #include "utilities/globalDefinitions.hpp"
  29 #include "utilities/debug.hpp"

  30 
  31 // Used to track time from the end of concurrent start to the first mixed GC.
  32 // After calling the concurrent start/mixed gc notifications, the result can be
  33 // obtained in last_marking_time() once, after which the tracking resets.
  34 // Any pauses recorded by add_pause() will be subtracted from that results.
  35 class G1ConcurrentStartToMixedTimeTracker {
  36 private:
  37   bool _active;
  38   double _concurrent_start_end_time;
  39   double _mixed_start_time;
  40   double _total_pause_time;
  41 
  42   double wall_time() const {
  43     return _mixed_start_time - _concurrent_start_end_time;
  44   }
  45 public:
  46   G1ConcurrentStartToMixedTimeTracker() { reset(); }
  47 
  48   // Record concurrent start pause end, starting the time tracking.
  49   void record_concurrent_start_end(double end_time) {




   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 #ifndef SHARE_GC_G1_G1CONCURRENTSTARTTOMIXEDTIMETRACKER_HPP
  26 #define SHARE_GC_G1_G1CONCURRENTSTARTTOMIXEDTIMETRACKER_HPP
  27 

  28 #include "utilities/debug.hpp"
  29 #include "utilities/globalDefinitions.hpp"
  30 
  31 // Used to track time from the end of concurrent start to the first mixed GC.
  32 // After calling the concurrent start/mixed gc notifications, the result can be
  33 // obtained in last_marking_time() once, after which the tracking resets.
  34 // Any pauses recorded by add_pause() will be subtracted from that results.
  35 class G1ConcurrentStartToMixedTimeTracker {
  36 private:
  37   bool _active;
  38   double _concurrent_start_end_time;
  39   double _mixed_start_time;
  40   double _total_pause_time;
  41 
  42   double wall_time() const {
  43     return _mixed_start_time - _concurrent_start_end_time;
  44   }
  45 public:
  46   G1ConcurrentStartToMixedTimeTracker() { reset(); }
  47 
  48   // Record concurrent start pause end, starting the time tracking.
  49   void record_concurrent_start_end(double end_time) {


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