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First experimental profiler implementation with flat profile. * profiler.cc: New file. * profiler.h: New file. * Makefile.am: Include new files in build process. * oct-parse.yy (frob_function): Store location of function parsed. * ov-fcn.h (octave_function::profiler_name): New method. * ov-builtin.cc (octave_builtin::do_multi_index_op): Record timings in profiler. * ov-mex-fcn.cc (octave_mex_function::do_multi_index_op): Ditto. * ov-usr-fcn.cc (octave_user_script::do_multi_index_op): Ditto. (octave_user_function::do_multi_index_op): Ditto. (octave_user_function::octave_user_function): Initialize location_line/column. (octave_user_function::profiler_name): New method. * ov-usr-fcn.h (octave_user_function): New variables location_line, location column and new method stash_fcn_location to set them. * pt-fcn-handle.cc (tree_anon_fcn_handle::rvalue1): Store location.
author Daniel Kraft <d@domob.eu>
date Thu, 30 Jun 2011 20:04:34 +0200
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1 /*
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2
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3 Copyright (C) 2011 Daniel Kraft
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_profiler_h)
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24 #define octave_profiler_h 1
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25
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26 #include <stack>
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27 #include <map>
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28
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29 class octave_function;
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30 class Cell;
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31
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32 class
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33 OCTAVE_API
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34 profile_data_accumulator
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35 {
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36 public:
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37
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38 // This is a utility class that can be used to call the enter/exit
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39 // functions in a manner protected from stack unwinding.
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40 class enter
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41 {
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42 private:
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43
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44 profile_data_accumulator& acc;
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45
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46 const octave_function* fcn;
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47
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48 public:
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49
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50 enter (profile_data_accumulator&, const octave_function& fcn);
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51
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52 virtual ~enter (void);
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53
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54 private:
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55
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56 // No copying!
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57
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58 enter (const enter&);
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59
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60 enter& operator = (const enter&);
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61 };
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62
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63 profile_data_accumulator (void);
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64
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65 bool is_active (void) const { return enabled; }
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66
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67 void set_active (bool);
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68
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69 void reset (void);
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70
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71 Cell get_data (void) const;
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72
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73 private:
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74
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75 bool enabled;
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76
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77 std::stack<const octave_function*> call_stack;
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78
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79 typedef std::map<std::string, double> timing_map;
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80 timing_map times;
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81
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82 // Store last timestamp we had, when the currently active function was called.
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83 double last_time;
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84
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85 // These are private as only the unwind-protecting inner class enter
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86 // should be allowed to call them.
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87 void enter_function (const octave_function&);
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88 void exit_function (const octave_function&);
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89
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90 // Query a timestamp, used for timing calls (obviously).
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91 // This is not static because in the future, maybe we want a flag
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92 // in the profiler or something to choose between cputime, wall-time
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93 // user-time, system-time, ...
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94 double query_time () const;
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95
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96 // Add the time elapsed since last_time to the function on the top
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97 // of our call-stack. This is called from two different positions,
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98 // thus it is useful to have it as a seperate function.
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99 void add_current_time (void);
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100
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101 // No copying!
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102
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103 profile_data_accumulator (const profile_data_accumulator&);
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104
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105 profile_data_accumulator& operator = (const profile_data_accumulator&);
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106 };
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107
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108 // The instance used.
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109 extern profile_data_accumulator profiler;
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110
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111 #endif