Mercurial > octave
annotate libinterp/parse-tree/profiler.cc @ 23753:c3828bd031cd
move profiler inside evaluator and inside octave namespace
* interpreter.h, interpreter.cc (interpreter::get_profiler):
New function.
* pt-eval.h, pt-eval.cc (tree_evaluator::m_profiler): New data member.
(tree_evaluator::get_profiler): New function.
* profiler.h, profiler.cc (profiler): Delete global variable.
(class profiler): Rename from profile_data_accumulator. Move inside
octave namespace. Change all uses.
author | John W. Eaton <jwe@octave.org> |
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date | Sat, 08 Jul 2017 10:33:07 -0400 |
parents | 6be1bf9455e3 |
children | 980f39c3ab90 |
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1 /* |
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2 |
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3 Copyright (C) 2014-2017 Julien Bect |
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4 Copyright (C) 2012-2016 Daniel Kraft |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation; either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include <iostream> |
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29 |
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30 #include "defun.h" |
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31 #include "interpreter.h" |
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32 #include "oct-time.h" |
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33 #include "ov-struct.h" |
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34 #include "pager.h" |
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35 #include "profiler.h" |
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36 |
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37 namespace octave |
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38 { |
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39 profiler::stats::stats () |
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40 : time (0.0), calls (0), recursive (false), |
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41 parents (), children () |
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42 { } |
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43 |
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44 octave_value |
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45 profiler::stats::function_set_value (const function_set& list) |
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46 { |
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47 const octave_idx_type n = list.size (); |
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48 |
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49 RowVector retval (n); |
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50 octave_idx_type i = 0; |
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51 for (const auto& nm : list) |
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52 retval(i++) = nm; |
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53 |
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54 assert (i == n); |
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55 |
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56 return retval; |
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57 } |
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58 |
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59 profiler::tree_node::tree_node (tree_node *p, octave_idx_type f) |
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60 : parent (p), fcn_id (f), children (), time (0.0), calls (0) |
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61 { } |
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62 |
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63 profiler::tree_node::~tree_node () |
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64 { |
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65 for (auto& idx_tnode : children) |
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66 delete idx_tnode.second; |
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67 } |
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68 |
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69 profiler::tree_node* |
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70 profiler::tree_node::enter (octave_idx_type fcn) |
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71 { |
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72 tree_node *retval; |
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73 |
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74 child_map::iterator pos = children.find (fcn); |
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75 if (pos == children.end ()) |
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76 { |
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77 retval = new tree_node (this, fcn); |
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78 children[fcn] = retval; |
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79 } |
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80 else |
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81 retval = pos->second; |
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82 |
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83 ++retval->calls; |
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84 return retval; |
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85 } |
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86 |
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87 profiler::tree_node* |
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88 profiler::tree_node::exit (octave_idx_type /* fcn */) |
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89 { |
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90 // FIXME: These assert statements don't make sense if profile() is called |
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91 // from within a function hierarchy to begin with. See bug #39587. |
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92 // assert (parent); |
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93 // assert (fcn_id == fcn); |
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94 |
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95 return parent; |
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96 } |
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97 |
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98 void |
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99 profiler::tree_node::build_flat (flat_profile& data) const |
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100 { |
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101 // If this is not the top-level node, update profile entry for this function. |
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102 if (fcn_id != 0) |
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103 { |
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104 stats& entry = data[fcn_id - 1]; |
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105 |
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106 entry.time += time; |
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107 entry.calls += calls; |
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108 |
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109 assert (parent); |
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110 if (parent->fcn_id != 0) |
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111 { |
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112 entry.parents.insert (parent->fcn_id); |
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113 data[parent->fcn_id - 1].children.insert (fcn_id); |
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114 } |
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115 |
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116 if (! entry.recursive) |
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117 for (const tree_node *i = parent; i; i = i->parent) |
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118 if (i->fcn_id == fcn_id) |
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119 { |
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120 entry.recursive = true; |
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121 break; |
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122 } |
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123 } |
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124 |
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125 // Recurse on children. |
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126 for (const auto& idx_tnode : children) |
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127 idx_tnode.second->build_flat (data); |
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128 } |
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129 |
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130 octave_value |
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131 profiler::tree_node::get_hierarchical (double *total) const |
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132 { |
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133 // Note that we don't generate the entry just for this node, but |
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134 // rather a struct-array with entries for all children. This way, the |
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135 // top-node (for which we don't want a real entry) generates already |
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136 // the final hierarchical profile data. |
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137 |
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138 const octave_idx_type n = children.size (); |
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139 |
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140 Cell rv_indices (n, 1); |
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141 Cell rv_times (n, 1); |
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142 Cell rv_totals (n, 1); |
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143 Cell rv_calls (n, 1); |
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144 Cell rv_children (n, 1); |
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145 |
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146 octave_idx_type i = 0; |
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147 for (const auto& idx_tnode : children) |
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148 { |
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149 const tree_node& entry = *idx_tnode.second; |
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150 double child_total = entry.time; |
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151 |
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152 rv_indices(i) = octave_value (idx_tnode.first); |
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153 rv_times(i) = octave_value (entry.time); |
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154 rv_calls(i) = octave_value (entry.calls); |
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155 rv_children(i) = entry.get_hierarchical (&child_total); |
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156 rv_totals(i) = octave_value (child_total); |
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157 |
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158 if (total) |
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159 *total += child_total; |
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160 |
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161 ++i; |
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162 } |
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163 assert (i == n); |
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164 |
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165 octave_map retval; |
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166 |
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167 retval.assign ("Index", rv_indices); |
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168 retval.assign ("SelfTime", rv_times); |
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169 retval.assign ("TotalTime", rv_totals); |
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170 retval.assign ("NumCalls", rv_calls); |
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171 retval.assign ("Children", rv_children); |
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172 |
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173 return retval; |
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174 } |
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175 |
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176 profiler::profiler (void) |
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177 : known_functions (), fcn_index (), |
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178 enabled (false), call_tree (new tree_node (0, 0)), |
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179 active_fcn (0), last_time (-1.0) |
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180 { } |
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181 |
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182 profiler::~profiler (void) |
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183 { |
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184 delete call_tree; |
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185 } |
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186 |
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187 void |
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188 profiler::set_active (bool value) |
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189 { |
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190 enabled = value; |
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191 } |
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192 |
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193 void |
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194 profiler::enter_function (const std::string& fcn) |
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195 { |
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196 // The enter class will check and only call us if the profiler is active. |
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197 assert (is_active ()); |
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198 assert (call_tree); |
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199 |
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200 // If there is already an active function, add to its time before |
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201 // pushing the new one. |
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202 if (active_fcn && active_fcn != call_tree) |
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203 add_current_time (); |
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204 |
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205 // Map the function's name to its index. |
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206 octave_idx_type fcn_idx; |
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207 fcn_index_map::iterator pos = fcn_index.find (fcn); |
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208 if (pos == fcn_index.end ()) |
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209 { |
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210 known_functions.push_back (fcn); |
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211 fcn_idx = known_functions.size (); |
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212 fcn_index[fcn] = fcn_idx; |
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213 } |
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214 else |
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215 fcn_idx = pos->second; |
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216 |
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217 if (! active_fcn) |
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218 active_fcn = call_tree; |
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219 |
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220 active_fcn = active_fcn->enter (fcn_idx); |
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221 |
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222 last_time = query_time (); |
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223 |
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224 } |
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225 |
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226 void |
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227 profiler::exit_function (const std::string& fcn) |
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228 { |
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229 if (active_fcn) |
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230 { |
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231 assert (call_tree); |
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232 // FIXME: This assert statements doesn't make sense if profile() is called |
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233 // from within a function hierarchy to begin with. See bug #39587. |
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234 //assert (active_fcn != call_tree); |
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235 |
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236 // Usually, if we are disabled this function is not even called. But the |
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237 // call disabling the profiler is an exception. So also check here |
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238 // and only record the time if enabled. |
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239 if (is_active ()) |
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240 add_current_time (); |
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241 |
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242 fcn_index_map::iterator pos = fcn_index.find (fcn); |
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243 // FIXME: This assert statements doesn't make sense if profile() is called |
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244 // from within a function hierarchy to begin with. See bug #39587. |
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245 //assert (pos != fcn_index.end ()); |
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246 active_fcn = active_fcn->exit (pos->second); |
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247 |
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248 // If this was an "inner call", we resume executing the parent function |
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249 // up the stack. So note the start-time for this! |
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250 last_time = query_time (); |
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251 } |
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252 } |
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253 |
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254 void |
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255 profiler::reset (void) |
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256 { |
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257 if (is_active ()) |
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258 error ("Can't reset active profiler."); |
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259 |
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260 known_functions.clear (); |
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261 fcn_index.clear (); |
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262 |
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263 if (call_tree) |
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264 { |
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265 delete call_tree; |
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266 call_tree = new tree_node (0, 0); |
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267 active_fcn = 0; |
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268 } |
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269 |
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270 last_time = -1.0; |
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271 } |
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272 |
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273 octave_value |
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274 profiler::get_flat (void) const |
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275 { |
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276 octave_value retval; |
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277 |
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278 const octave_idx_type n = known_functions.size (); |
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279 |
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280 flat_profile flat (n); |
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281 |
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282 if (call_tree) |
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283 { |
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284 call_tree->build_flat (flat); |
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285 |
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286 Cell rv_names (n, 1); |
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287 Cell rv_times (n, 1); |
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288 Cell rv_calls (n, 1); |
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289 Cell rv_recursive (n, 1); |
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290 Cell rv_parents (n, 1); |
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291 Cell rv_children (n, 1); |
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292 |
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293 for (octave_idx_type i = 0; i != n; ++i) |
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294 { |
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295 rv_names(i) = octave_value (known_functions[i]); |
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296 rv_times(i) = octave_value (flat[i].time); |
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297 rv_calls(i) = octave_value (flat[i].calls); |
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298 rv_recursive(i) = octave_value (flat[i].recursive); |
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299 rv_parents(i) = stats::function_set_value (flat[i].parents); |
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300 rv_children(i) = stats::function_set_value (flat[i].children); |
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301 } |
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302 |
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303 octave_map m; |
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304 |
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305 m.assign ("FunctionName", rv_names); |
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306 m.assign ("TotalTime", rv_times); |
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307 m.assign ("NumCalls", rv_calls); |
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308 m.assign ("IsRecursive", rv_recursive); |
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309 m.assign ("Parents", rv_parents); |
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310 m.assign ("Children", rv_children); |
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311 |
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312 retval = m; |
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313 } |
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314 else |
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315 { |
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316 static const char *fn[] = |
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317 { |
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318 "FunctionName", |
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319 "TotalTime", |
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320 "NumCalls", |
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321 "IsRecursive", |
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322 "Parents", |
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323 "Children", |
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324 0 |
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325 }; |
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326 |
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327 static octave_map m (dim_vector (0, 1), string_vector (fn)); |
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328 |
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329 retval = m; |
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330 } |
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331 |
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332 return retval; |
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333 } |
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334 |
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335 octave_value |
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336 profiler::get_hierarchical (void) const |
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337 { |
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338 octave_value retval; |
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339 |
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340 if (call_tree) |
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341 retval = call_tree->get_hierarchical (); |
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342 else |
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343 { |
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344 static const char *fn[] = |
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345 { |
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346 "Index", |
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347 "SelfTime", |
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348 "NumCalls", |
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349 "Children", |
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350 0 |
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351 }; |
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352 |
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353 static octave_map m (dim_vector (0, 1), string_vector (fn)); |
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354 |
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355 retval = m; |
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356 } |
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357 |
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358 return retval; |
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359 } |
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360 |
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361 double |
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362 profiler::query_time (void) const |
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363 { |
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364 sys::time now; |
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365 |
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366 // FIXME: is this volatile declaration really needed? |
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367 // See bug #34210 for additional details. |
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368 volatile double dnow = now.double_value (); |
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369 |
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370 return dnow; |
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371 } |
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372 |
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373 void |
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374 profiler::add_current_time (void) |
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375 { |
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376 if (active_fcn) |
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377 { |
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378 const double t = query_time (); |
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379 |
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380 active_fcn->add_time (t - last_time); |
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381 } |
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382 } |
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383 } |
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384 |
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385 // Enable or disable the profiler data collection. |
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386 DEFMETHOD (__profiler_enable__, interp, args, , |
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387 doc: /* -*- texinfo -*- |
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388 @deftypefn {} {} __profiler_enable__ () |
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389 Undocumented internal function. |
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390 @end deftypefn */) |
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391 { |
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392 int nargin = args.length (); |
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393 |
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394 if (nargin > 1) |
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395 print_usage (); |
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396 |
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397 octave::profiler& profiler = interp.get_profiler (); |
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398 |
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399 if (nargin == 1) |
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400 profiler.set_active (args(0).bool_value ()); |
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401 |
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402 return ovl (profiler.is_active ()); |
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403 } |
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404 |
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405 // Clear all collected profiling data. |
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406 DEFMETHOD (__profiler_reset__, interp, args, , |
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407 doc: /* -*- texinfo -*- |
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408 @deftypefn {} {} __profiler_reset__ () |
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409 Undocumented internal function. |
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410 @end deftypefn */) |
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411 { |
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412 if (args.length () != 0) |
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413 print_usage (); |
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414 |
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415 octave::profiler& profiler = interp.get_profiler (); |
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416 |
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417 profiler.reset (); |
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418 |
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419 return ovl (); |
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420 } |
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421 |
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422 // Query the timings collected by the profiler. |
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423 DEFMETHOD (__profiler_data__, interp, args, nargout, |
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424 doc: /* -*- texinfo -*- |
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425 @deftypefn {} {} __profiler_data__ () |
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426 Undocumented internal function. |
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427 @end deftypefn */) |
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428 { |
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429 if (args.length () != 0) |
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430 print_usage (); |
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431 |
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432 octave::profiler& profiler = interp.get_profiler (); |
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433 |
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434 if (nargout > 1) |
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435 return ovl (profiler.get_flat (), profiler.get_hierarchical ()); |
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436 else |
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437 return ovl (profiler.get_flat ()); |
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438 } |