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src/hotspot/share/gc/shared/ageTable.cpp

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  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 #include "precompiled.hpp"
  26 #include "jvm.h"
  27 #include "gc/shared/ageTable.inline.hpp"
  28 #include "gc/shared/ageTableTracer.hpp"
  29 #include "gc/shared/collectedHeap.hpp"
  30 #include "gc/shared/collectorPolicy.hpp"
  31 #include "memory/resourceArea.hpp"
  32 #include "logging/log.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "utilities/copy.hpp"
  35 
  36 /* Copyright (c) 1992, 2016, Oracle and/or its affiliates, and Stanford University.
  37    See the LICENSE file for license information. */
  38 
  39 AgeTable::AgeTable(bool global) {
  40 
  41   clear();
  42 
  43   if (UsePerfData && global) {
  44 
  45     ResourceMark rm;
  46     EXCEPTION_MARK;
  47 
  48     const char* agetable_ns = "generation.0.agetable";
  49     const char* bytes_ns = PerfDataManager::name_space(agetable_ns, "bytes");
  50 


 108     log_trace(gc, age)("Age table with threshold %u (max threshold " UINTX_FORMAT ")",
 109                        tenuring_threshold, MaxTenuringThreshold);
 110 
 111     size_t total = 0;
 112     uint age = 1;
 113     while (age < table_size) {
 114       size_t wordSize = sizes[age];
 115       total += wordSize;
 116       if (wordSize > 0) {
 117         log_trace(gc, age)("- age %3u: " SIZE_FORMAT_W(10) " bytes, " SIZE_FORMAT_W(10) " total",
 118                             age, wordSize * oopSize, total * oopSize);
 119       }
 120       AgeTableTracer::send_tenuring_distribution_event(age, wordSize * oopSize);
 121       if (UsePerfData) {
 122         _perf_sizes[age]->set_value(wordSize * oopSize);
 123       }
 124       age++;
 125     }
 126   }
 127 }
 128 


  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 #include "precompiled.hpp"
  26 #include "jvm.h"
  27 #include "gc/shared/ageTable.inline.hpp"
  28 #include "gc/shared/ageTableTracer.hpp"
  29 #include "gc/shared/collectedHeap.hpp"

  30 #include "memory/resourceArea.hpp"
  31 #include "logging/log.hpp"
  32 #include "oops/oop.inline.hpp"
  33 #include "utilities/copy.hpp"
  34 
  35 /* Copyright (c) 1992, 2016, Oracle and/or its affiliates, and Stanford University.
  36    See the LICENSE file for license information. */
  37 
  38 AgeTable::AgeTable(bool global) {
  39 
  40   clear();
  41 
  42   if (UsePerfData && global) {
  43 
  44     ResourceMark rm;
  45     EXCEPTION_MARK;
  46 
  47     const char* agetable_ns = "generation.0.agetable";
  48     const char* bytes_ns = PerfDataManager::name_space(agetable_ns, "bytes");
  49 


 107     log_trace(gc, age)("Age table with threshold %u (max threshold " UINTX_FORMAT ")",
 108                        tenuring_threshold, MaxTenuringThreshold);
 109 
 110     size_t total = 0;
 111     uint age = 1;
 112     while (age < table_size) {
 113       size_t wordSize = sizes[age];
 114       total += wordSize;
 115       if (wordSize > 0) {
 116         log_trace(gc, age)("- age %3u: " SIZE_FORMAT_W(10) " bytes, " SIZE_FORMAT_W(10) " total",
 117                             age, wordSize * oopSize, total * oopSize);
 118       }
 119       AgeTableTracer::send_tenuring_distribution_event(age, wordSize * oopSize);
 120       if (UsePerfData) {
 121         _perf_sizes[age]->set_value(wordSize * oopSize);
 122       }
 123       age++;
 124     }
 125   }
 126 }

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