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maint: merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 10:10:40 -0500
parents de5f2f9a64ff 0a5b15007766
children 796f54d4ddbf
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2012-2021 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {} profexplore ()
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28 ## @deftypefnx {} {} profexplore (@var{data})
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29 ## Interactively explore hierarchical profiler output.
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30 ##
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31 ## Assuming @var{data} is the structure with profile data returned by
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32 ## @code{profile (@qcode{"info"})}, this command opens an interactive prompt
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33 ## that can be used to explore the call-tree. Type @kbd{help} to get a list
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34 ## of possible commands. If @var{data} is omitted, @code{profile ("info")}
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35 ## is called and used in its place.
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36 ## @seealso{profile, profshow}
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37 ## @end deftypefn
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38
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39 ## Built-in profiler.
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40 function profexplore (data)
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41
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42 if (nargin == 0)
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43 data = profile ("info");
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44 elseif (nargin < 1)
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45 print_usage ();
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46 endif
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47
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48 ## The actual work is done by a recursive worker function, since that
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49 ## is an easy way to traverse the tree datastructure. Here, we just check
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50 ## the arguments (already done) and give over to it.
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51
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52 __profexplore_worker (data.FunctionTable, data.Hierarchical, "Top\n", " ");
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53
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54 endfunction
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55
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56 ## This is the worker function. tree is the current subtree we want to
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57 ## display / explore. parents is a string containing the already "rendered"
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58 ## data for the parents which is displayed on top of the list of current
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59 ## children. prefix is the prefix to add to each line rendered; this
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60 ## is just a string of spaces to get indentation right.
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61 ##
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62 ## Returning 0 indicates that the user requested to totally exit the
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63 ## explorer, thus also all higher levels should exit immediately. An integer
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64 ## greater zero indicates to exit that many levels since the user wants to go
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65 ## up (but not necessarily quit).
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66
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67 function rv = __profexplore_worker (fcn_table, tree, parents, prefix)
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68
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69 ## Sort children by total time.
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70 times = -[ tree.TotalTime ];
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71 [~, p] = sort (times);
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72 tree = tree(p);
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73
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74 while (true)
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75
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76 printf ("\n%s", parents);
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77 strings = cell (length (tree), 1);
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78 for i = 1 : length (tree)
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79 strings{i} = sprintf ("%s: %d calls, %.3f total, %.3f self", ...
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80 fcn_table(tree(i).Index).FunctionName, ...
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81 tree(i).NumCalls, ...
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82 tree(i).TotalTime, tree(i).SelfTime);
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83 printf ("%s%d) %s\n", prefix, i, strings{i});
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84 endfor
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85 printf ("\n");
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86
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87 cmd = input ("profexplore> ", "s");
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88 option = fix (str2double (cmd));
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89
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90 if (strcmp (cmd, "exit") || strcmp (cmd, "quit"))
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91 rv = 0;
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92 return;
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93 elseif (strcmp (cmd, "help"))
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94 printf ("\nCommands for profile explorer:\n\n");
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95 printf ("exit Return to Octave prompt.\n");
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96 printf ("quit Return to Octave prompt.\n");
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97 printf ("help Display this help message.\n");
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98 printf ("up [N] Go up N levels, where N is an integer. Default is 1.\n");
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99 printf ("N Go down a level into option N.\n");
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100 elseif (! isnan (option))
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101 if (option < 1 || option > length (tree))
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102 printf ("The chosen option is out of range!\n");
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103 else
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104 newParents = sprintf ("%s%s%s\n", parents, prefix, strings{option});
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105 newPrefix = sprintf ("%s ", prefix);
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106
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107 rv = __profexplore_worker (fcn_table, tree(option).Children, ...
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108 newParents, newPrefix);
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109
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110 if (rv == 0)
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111 return;
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112 elseif (rv > 1)
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113 rv -= 1;
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114 return;
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115 else
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116 assert (rv == 1);
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117 ## It was requested to return to this level, so just stay.
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118 endif
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119 endif
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120 elseif (length (cmd) >= 2 && strcmp (substr (cmd, 1, 2), "up"))
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121 if (length (cmd) == 2)
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122 rv = 1;
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123 return;
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124 endif
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125
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126 if (length (cmd) > 3 && cmd(3) == ' ')
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127 opt = fix (str2double (substr (cmd, 3)));
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128 if (! isnan (opt) && opt > 0)
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129 rv = opt;
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130 return;
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131 endif
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132 endif
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133
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134 printf ("Invalid 'up' command. Type 'help' for further");
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135 printf (" information.\n");
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parents:
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136 else
21634
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parents: 21633
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137 printf ("Unrecognized input. Type 'help' to get a list of possible");
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Mike Miller <mtmiller@octave.org>
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138 printf (" commands.\n");
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139 endif
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parents:
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140
c5a8b23db680 New function 'profexplore' for interactive hierarchical profile exploration.
Daniel Kraft <d@domob.eu>
parents:
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141 endwhile
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Rik <rik@octave.org>
parents: 21634
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142
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parents:
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143 endfunction