hotspot/src/share/vm/runtime/timer.hpp
author rehn
Tue, 15 Mar 2016 14:41:07 +0100
changeset 37161 e881f320966e
parent 36178 9739f8c767da
permissions -rw-r--r--
8150015: Integrate TraceTime with Unified Logging more seamlessly Reviewed-by: coleenp, dholmes
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
36178
9739f8c767da 8148630: Convert TraceStartupTime to Unified Logging
rprotacio
parents: 33160
diff changeset
     2
 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    25
#ifndef SHARE_VM_RUNTIME_TIMER_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    26
#define SHARE_VM_RUNTIME_TIMER_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    27
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    28
#include "utilities/globalDefinitions.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    29
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    30
// Timers for simple measurement.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    31
489c9b5090e2 Initial load
duke
parents:
diff changeset
    32
class elapsedTimer VALUE_OBJ_CLASS_SPEC {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    33
  friend class VMStructs;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    34
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    35
  jlong _counter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    36
  jlong _start_counter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    37
  bool  _active;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    38
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
  elapsedTimer()             { _active = false; reset(); }
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 30608
diff changeset
    40
  elapsedTimer(jlong time, jlong timeUnitsPerSecond);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
  void add(elapsedTimer t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
  void start();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
  void stop();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
  void reset()               { _counter = 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
  double seconds() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
  jlong milliseconds() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
  jlong ticks() const        { return _counter; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
  jlong active_ticks() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
  bool  is_active() const { return _active; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
// TimeStamp is used for recording when an event took place.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
class TimeStamp VALUE_OBJ_CLASS_SPEC {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
  jlong _counter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
  TimeStamp()  { _counter = 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
  void clear() { _counter = 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
  // has the timestamp been updated since being created or cleared?
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
  bool is_updated() const { return _counter != 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
  // update to current elapsed time
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
  void update();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
  // update to given elapsed time
489c9b5090e2 Initial load
duke
parents:
diff changeset
    64
  void update_to(jlong ticks);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
  // returns seconds since updated
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
  // (must not be in a cleared state:  must have been previously updated)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
  double seconds() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    68
  jlong milliseconds() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
  // ticks elapsed between VM start and last update
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
  jlong ticks() const { return _counter; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
  // ticks elapsed since last update
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
  jlong ticks_since_update() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
class TraceCPUTime: public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
  bool _active;                 // true if times will be measured and printed
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
  bool _print_cr;               // if true print carriage return at end
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
  double _starting_user_time;   // user time at start of measurement
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
  double _starting_system_time; // system time at start of measurement
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
  double _starting_real_time;   // real time at start of measurement
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
  outputStream* _logfile;       // output is printed to this stream
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
  bool _error;                  // true if an error occurred, turns off output
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
  TraceCPUTime(bool doit = true,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
               bool print_cr = true,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
               outputStream *logfile = NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
  ~TraceCPUTime();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
};
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    91
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 7397
diff changeset
    92
class TimeHelper {
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 7397
diff changeset
    93
 public:
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 7397
diff changeset
    94
  static double counter_to_seconds(jlong counter);
30608
d79880a5cf2f 8079561: Add a method to convert counters to milliseconds
brutisso
parents: 18025
diff changeset
    95
  static double counter_to_millis(jlong counter);
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 7397
diff changeset
    96
};
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 7397
diff changeset
    97
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    98
#endif // SHARE_VM_RUNTIME_TIMER_HPP