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src/hotspot/share/runtime/timer.hpp

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rev 47415 : Add Thread Local handshakes and thread local polling
   1 /*
   2  * Copyright (c) 1997, 2016, 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  *


  76  private:
  77   bool _active;                 // true if times will be measured and printed
  78   bool _print_cr;               // if true print carriage return at end
  79   double _starting_user_time;   // user time at start of measurement
  80   double _starting_system_time; // system time at start of measurement
  81   double _starting_real_time;   // real time at start of measurement
  82   outputStream* _logfile;       // output is printed to this stream
  83   bool _error;                  // true if an error occurred, turns off output
  84 
  85  public:
  86   TraceCPUTime(bool doit = true,
  87                bool print_cr = true,
  88                outputStream *logfile = NULL);
  89   ~TraceCPUTime();
  90 };
  91 
  92 class TimeHelper {
  93  public:
  94   static double counter_to_seconds(jlong counter);
  95   static double counter_to_millis(jlong counter);

  96 };
  97 
  98 #endif // SHARE_VM_RUNTIME_TIMER_HPP
   1 /*
   2  * Copyright (c) 1997, 2017, 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  *


  76  private:
  77   bool _active;                 // true if times will be measured and printed
  78   bool _print_cr;               // if true print carriage return at end
  79   double _starting_user_time;   // user time at start of measurement
  80   double _starting_system_time; // system time at start of measurement
  81   double _starting_real_time;   // real time at start of measurement
  82   outputStream* _logfile;       // output is printed to this stream
  83   bool _error;                  // true if an error occurred, turns off output
  84 
  85  public:
  86   TraceCPUTime(bool doit = true,
  87                bool print_cr = true,
  88                outputStream *logfile = NULL);
  89   ~TraceCPUTime();
  90 };
  91 
  92 class TimeHelper {
  93  public:
  94   static double counter_to_seconds(jlong counter);
  95   static double counter_to_millis(jlong counter);
  96   static jlong millis_to_counter(jlong millis);
  97 };
  98 
  99 #endif // SHARE_VM_RUNTIME_TIMER_HPP
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