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src/share/vm/gc/shared/gcTraceTime.hpp

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   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_VM_GC_SHARED_GCTRACETIME_HPP
  26 #define SHARE_VM_GC_SHARED_GCTRACETIME_HPP
  27 
  28 #include "gc/shared/gcTrace.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "prims/jni_md.h"
  31 #include "utilities/ticks.hpp"
  32 










  33 class GCTimer;
  34 
  35 class GCTraceTimeImpl VALUE_OBJ_CLASS_SPEC {





  36   const char* _title;
  37   bool _doit;
  38   bool _print_cr;
  39   GCTimer* _timer;
  40   Ticks _start_counter;




  41 
  42  public:
  43   GCTraceTimeImpl(const char* title, bool doit, bool print_cr, GCTimer* timer);
  44   ~GCTraceTimeImpl();
  45 };
  46 
  47 class GCTraceTime : public StackObj {
  48   GCTraceTimeImpl _gc_trace_time_impl;
  49 






  50  public:
  51   GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
  52     _gc_trace_time_impl(title, doit, print_cr, timer) {};

  53 };
  54 
  55 #endif // SHARE_VM_GC_SHARED_GCTRACETIME_HPP


   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_VM_GC_SHARED_GCTRACETIME_HPP
  26 #define SHARE_VM_GC_SHARED_GCTRACETIME_HPP
  27 
  28 #include "logging/log.hpp"
  29 #include "memory/allocation.hpp"

  30 #include "utilities/ticks.hpp"
  31 
  32 class GCTraceCPUTime : public StackObj {
  33   bool _active;                 // true if times will be measured and printed
  34   double _starting_user_time;   // user time at start of measurement
  35   double _starting_system_time; // system time at start of measurement
  36   double _starting_real_time;   // real time at start of measurement
  37  public:
  38   GCTraceCPUTime();
  39   ~GCTraceCPUTime();
  40 };
  41 
  42 class GCTimer;
  43 
  44 template <LogLevelType Level, LogTagType T0, LogTagType T1 = LogTag::__NO_TAG, LogTagType T2 = LogTag::__NO_TAG, LogTagType T3 = LogTag::__NO_TAG,
  45     LogTagType T4 = LogTag::__NO_TAG, LogTagType GuardTag = LogTag::__NO_TAG>
  46 class GCTraceTimeImpl : public StackObj {
  47  private:
  48   bool _enabled;
  49   Ticks _start_ticks;
  50   const char* _title;
  51   GCCause::Cause _gc_cause;

  52   GCTimer* _timer;
  53   size_t _heap_usage_before;
  54 
  55   void log_start(jlong start_counter);
  56   void log_stop(jlong start_counter, jlong stop_counter);
  57   void time_stamp(Ticks& ticks);
  58 
  59  public:
  60   GCTraceTimeImpl(const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false);
  61   ~GCTraceTimeImpl();
  62 };
  63 
  64 // Similar to GCTraceTimeImpl but is intended for concurrent phase logging,
  65 // which is a bit simpler and should always print the start line, i.e. not add the "start" tag.
  66 template <LogLevelType Level, LogTagType T0, LogTagType T1 = LogTag::__NO_TAG, LogTagType T2 = LogTag::__NO_TAG, LogTagType T3 = LogTag::__NO_TAG,
  67     LogTagType T4 = LogTag::__NO_TAG, LogTagType GuardTag = LogTag::__NO_TAG>
  68 class GCTraceConcTimeImpl : public StackObj {
  69  private:
  70   bool _enabled;
  71   jlong _start_time;
  72   const char* _title;
  73  public:
  74   GCTraceConcTimeImpl(const char* title);
  75   ~GCTraceConcTimeImpl();
  76   jlong start_time() { return _start_time; }
  77 };
  78 
  79 #endif // SHARE_VM_GC_SHARED_GCTRACETIME_HPP
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