1 /*
   2  * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   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 "incls/_precompiled.incl"
  26 # include "incls/_task.cpp.incl"















  27 
  28 int PeriodicTask::_num_tasks = 0;
  29 PeriodicTask* PeriodicTask::_tasks[PeriodicTask::max_tasks];
  30 #ifndef PRODUCT
  31 elapsedTimer PeriodicTask::_timer;
  32 int PeriodicTask::_intervalHistogram[PeriodicTask::max_interval];
  33 int PeriodicTask::_ticks;
  34 
  35 void PeriodicTask::print_intervals() {
  36   if (ProfilerCheckIntervals) {
  37     for (int i = 0; i < PeriodicTask::max_interval; i++) {
  38       int n = _intervalHistogram[i];
  39       if (n > 0) tty->print_cr("%3d: %5d (%4.1f%%)", i, n, 100.0 * n / _ticks);
  40     }
  41   }
  42 }
  43 #endif
  44 
  45 void PeriodicTask::real_time_tick(size_t delay_time) {
  46 #ifndef PRODUCT

   1 /*
   2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   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 "memory/allocation.hpp"
  27 #include "runtime/init.hpp"
  28 #include "runtime/task.hpp"
  29 #include "runtime/timer.hpp"
  30 #ifdef TARGET_OS_FAMILY_linux
  31 # include "os_linux.inline.hpp"
  32 # include "thread_linux.inline.hpp"
  33 #endif
  34 #ifdef TARGET_OS_FAMILY_solaris
  35 # include "os_solaris.inline.hpp"
  36 # include "thread_solaris.inline.hpp"
  37 #endif
  38 #ifdef TARGET_OS_FAMILY_windows
  39 # include "os_windows.inline.hpp"
  40 # include "thread_windows.inline.hpp"
  41 #endif
  42 
  43 int PeriodicTask::_num_tasks = 0;
  44 PeriodicTask* PeriodicTask::_tasks[PeriodicTask::max_tasks];
  45 #ifndef PRODUCT
  46 elapsedTimer PeriodicTask::_timer;
  47 int PeriodicTask::_intervalHistogram[PeriodicTask::max_interval];
  48 int PeriodicTask::_ticks;
  49 
  50 void PeriodicTask::print_intervals() {
  51   if (ProfilerCheckIntervals) {
  52     for (int i = 0; i < PeriodicTask::max_interval; i++) {
  53       int n = _intervalHistogram[i];
  54       if (n > 0) tty->print_cr("%3d: %5d (%4.1f%%)", i, n, 100.0 * n / _ticks);
  55     }
  56   }
  57 }
  58 #endif
  59 
  60 void PeriodicTask::real_time_tick(size_t delay_time) {
  61 #ifndef PRODUCT