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1 ;;; profile.el --- basic profiling commands for XEmacs
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2
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3 ;; Copyright (C) 1996 Ben Wing.
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4
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5 ;; Maintainer: XEmacs Development Team
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6 ;; Keywords: internal
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs 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 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs 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 GNU
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18 ;; 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 XEmacs; see the file COPYING. If not, write to the
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22 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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23 ;; Boston, MA 02111-1307, USA.
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24
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25 ;;; Synched up with: Not in FSF.
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26
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27 ;;; Commentary:
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28
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29 ;; `profile' macro and `profile-key-sequence' added in June 1997 by
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30 ;; hniksic.
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31
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32
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33 ;;; Code:
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34
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35 ;;;###autoload
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36 (defun pretty-print-profiling-info (&optional info stream)
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37 "Print profiling info INFO to STREAM in a pretty format.
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38 If INFO is omitted, the current profiling info is retrieved using
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39 `get-profiling-info'.
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40 If STREAM is omitted, either current buffer or standard output are used,
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41 depending on whether the function was called interactively or not."
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42 (interactive)
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43 (if info
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44 (setq info (copy-alist info))
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45 (setq info (get-profiling-info)))
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46 (let ((standard-output (or stream (if (interactive-p)
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47 (current-buffer)
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48 standard-output))))
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49 (setq info (nreverse (sort info #'cdr-less-than-cdr)))
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50 (princ "Function Count %\n")
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51 (princ "---------------------------------------------------------------------\n")
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52 (let ((sum 0.0))
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53 (dolist (info2 info)
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54 (incf sum (cdr info2)))
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55 (while info
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56 (let ((f (caar info)))
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57 (princ (format "%-50s%10d %6.3f\n" f (cdar info)
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58 (* 100 (/ (cdar info) sum)))))
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59 (pop info)))))
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60
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61 ;;;###autoload
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62 (defmacro profile (&rest forms)
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63 "Turn on profiling, execute FORMS and restore profiling state.
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64 Profiling state here means that if profiling was not in effect when
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65 PROFILE was called, it will be turned off after FORMS are evaluated.
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66 Otherwise, profiling will be left running.
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67
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68 Returns the profiling info, printable by `pretty-print-profiling-info'."
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69 `(progn
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70 (if (profiling-active-p)
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71 (progn
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72 ,@forms)
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73 (unwind-protect
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74 (progn
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75 (start-profiling)
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76 ,@forms)
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77 (stop-profiling)))
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78 (get-profiling-info)))
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79
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80 (put 'profile 'lisp-indent-function 0)
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81
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82 ;;;###autoload
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83 (defun profile-key-sequence (keys)
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84 "Dispatch the key sequence KEYS and profile the execution.
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85 KEYS can be a vector of keypress events, a keypress event, or a character.
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86 The function returns the profiling info."
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87 (interactive "kProfile keystroke: ")
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88 (and (characterp keys)
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89 (setq keys (character-to-event keys)))
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90 (or (vectorp keys)
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91 (setq keys (vector keys)))
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92 (profile
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93 (mapc 'dispatch-event keys)))
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94
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95 ;;; profile.el ends here
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