6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 #include "precompiled.hpp"

  26 #include "gc/shared/gcTimer.hpp"
  27 #include "gc/shared/gcTrace.hpp"
  28 #include "gc/shared/gcTraceTime.hpp"
  29 #include "runtime/globals.hpp"
  30 #include "runtime/os.hpp"
  31 #include "runtime/safepoint.hpp"
  32 #include "runtime/thread.inline.hpp"
  33 #include "runtime/timer.hpp"
  34 #include "utilities/ostream.hpp"
  35 #include "utilities/ticks.inline.hpp"
  36 
  37 
  38 GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer, GCId gc_id) :
  39     _title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
  40   if (_doit || _timer != NULL) {
  41     _start_counter.stamp();
  42   }
  43 
  44   if (_timer != NULL) {
  45     assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
  46     assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
  47 
  48     _timer->register_gc_phase_start(title, _start_counter);
  49   }
  50 
  51   if (_doit) {
  52     gclog_or_tty->date_stamp(PrintGCDateStamps);
  53     gclog_or_tty->stamp(PrintGCTimeStamps);
  54     if (PrintGCID) {
  55       gclog_or_tty->print("#%u: ", gc_id.id());
  56     }
  57     gclog_or_tty->print("[%s", title);
  58     gclog_or_tty->flush();
  59   }
  60 }
  61 
  62 GCTraceTime::~GCTraceTime() {
  63   Ticks stop_counter;
  64 
  65   if (_doit || _timer != NULL) {
  66     stop_counter.stamp();
  67   }
  68 
  69   if (_timer != NULL) {
  70     _timer->register_gc_phase_end(stop_counter);
  71   }
  72 
  73   if (_doit) {
  74     const Tickspan duration = stop_counter - _start_counter;
  75     double duration_in_seconds = TicksToTimeHelper::seconds(duration);
  76     if (_print_cr) {

   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 #include "precompiled.hpp"
  26 #include "gc/shared/gcId.hpp"
  27 #include "gc/shared/gcTimer.hpp"
  28 #include "gc/shared/gcTrace.hpp"
  29 #include "gc/shared/gcTraceTime.hpp"
  30 #include "runtime/globals.hpp"
  31 #include "runtime/os.hpp"
  32 #include "runtime/safepoint.hpp"
  33 #include "runtime/thread.inline.hpp"
  34 #include "runtime/timer.hpp"
  35 #include "utilities/ostream.hpp"
  36 #include "utilities/ticks.inline.hpp"
  37 
  38 
  39 GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
  40     _title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
  41   if (_doit || _timer != NULL) {
  42     _start_counter.stamp();
  43   }
  44 
  45   if (_timer != NULL) {
  46     assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
  47     assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
  48 
  49     _timer->register_gc_phase_start(title, _start_counter);
  50   }
  51 
  52   if (_doit) {
  53     gclog_or_tty->gclog_stamp();




  54     gclog_or_tty->print("[%s", title);
  55     gclog_or_tty->flush();
  56   }
  57 }
  58 
  59 GCTraceTime::~GCTraceTime() {
  60   Ticks stop_counter;
  61 
  62   if (_doit || _timer != NULL) {
  63     stop_counter.stamp();
  64   }
  65 
  66   if (_timer != NULL) {
  67     _timer->register_gc_phase_end(stop_counter);
  68   }
  69 
  70   if (_doit) {
  71     const Tickspan duration = stop_counter - _start_counter;
  72     double duration_in_seconds = TicksToTimeHelper::seconds(duration);
  73     if (_print_cr) {