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Diffstat (limited to 'Emacs/.config/emacs/profiler-dotemacs.el')
| -rw-r--r-- | Emacs/.config/emacs/profiler-dotemacs.el | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/Emacs/.config/emacs/profiler-dotemacs.el b/Emacs/.config/emacs/profiler-dotemacs.el deleted file mode 100644 index 222c94b..0000000 --- a/Emacs/.config/emacs/profiler-dotemacs.el +++ /dev/null @@ -1,202 +0,0 @@ -;;; profile-dotemacs.el --- Profile your Emacs init file - -;; Copyright (C) 2010, 2012 David Engster - -;; Author: David Engster <dengste@eml.cc> - -;; This file is NOT part of GNU Emacs. - -;; This program is free software; you can redistribute it and/or -;; modify it under the terms of the GNU General Public License -;; as published by the Free Software Foundation; either version 2 -;; of the License, or (at your option) any later version. -;; -;; This program is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. -;; -;; You should have received a copy of the GNU General Public License -;; along with this program. If not, see <http://www.gnu.org/licenses/>. - -;;; Commentary: - -;; This is to easily profile your Emacs init file (or any other -;; script-like Emacs Lisp file, for that matter). - -;; It will go over all sexp's (balanced expressions) in the file and -;; run them through `benchmark-run'. It will then show the file with -;; overlays applied in a way that let you easily find out which sexp's -;; take the most time. Since time is relative, it's not the absolute -;; value that counts but the percentage of the total running time. -;; -;; * All other sexp's with a percentage greater than -;; `profile-dotemacs-low-percentage' will be preceded by a -;; highlighted line, showing the results from `benchmark-run'. -;; Also, the more 'reddish' the background of the sexp, the more -;; time it needs. - -;; * All other sexp's will be grayed out to indicate that their -;; running time is miniscule. You can still see the benchmark -;; results in the minibuffer by hovering over the sexp with the -;; mouse. - -;; You can only benchmark full sexp's, so if you wrapped large parts -;; of your init file in some conditional clause, you'll have to remove -;; that for getting finer granularity. - -;;; Usage: - -;; Start emacs as follows: -;; -;; emacs -Q -l <PATH>/profile-dotemacs.el -f profile-dotemacs -;; -;; with <PATH> being the path to where this file resides. - -;;; Caveats (thanks to Raffaele Ricciardi for reporting those): - -;; - The usual `--debug-init' for debugging your init file won't work -;; with profile-dotemacs, so you'll have to call -;; `toggle-debug-on-error', either on the commandline or at the -;; beginning of your init file. -;; - `load-file-name' is nil when the init file is being loaded -;; by the profiler. This might matter if you perform the -;; bulk of initializations in a different file. -;; - Starting external shells like IELM or eshell in your init file -;; might mess with overlay creation, so this must not be done. - -;;; Download: - -;; You can always get the latest version from -;; http://randomsample.de/profile-dotemacs.el - -;; Aryadev Chavali: customised for this emacs specifically. - -;;; Code: - -(require 'thingatpt) -(require 'benchmark) - -;; User variables - -(defvar profile-dotemacs-file "~/.config/emacs/init.el" - "File to be profiled.") - -(defvar profile-dotemacs-low-percentage 3 - "Percentage which should be considered low. -All sexp's with a running time below this percentage will be -grayed out.") - -(defface profile-dotemacs-time-face - '((((background dark)) (:background "OrangeRed1")) - (t (:background "red3"))) - "Background color to indicate percentage of total time.") - -(defface profile-dotemacs-low-percentage-face - '((((background dark)) (:foreground "gray25")) - (t (:foreground "gray75"))) - "Face for sexps below `profile-dotemacs-low-percentage'.") - -(defface profile-dotemacs-highlight-face - '((((background dark)) (:background "blue")) - (t (:background "yellow"))) - "Highlight face for benchmark results.") - -;; Main function - -(defun profile-dotemacs () - "Load `profile-dotemacs-file' and benchmark its sexps." - (interactive) - (with-current-buffer (find-file-noselect profile-dotemacs-file t) - (setq buffer-read-only t) ;; just to be sure - (goto-char (point-min)) - (let (start end results) - (while - (< (point) - (setq end (progn - (forward-sexp 1) - (point)))) - (forward-sexp -1) - (setq start (point)) - (add-to-list - 'results - `(,start ,end - ,(benchmark-run - (eval (sexp-at-point))))) - (goto-char end)) - (profile-dotemacs-show-results results) - (switch-to-buffer (current-buffer))))) - -;; Helper functions - -(defun profile-dotemacs-show-results (results) - "Show timings from RESULTS in current buffer." - (let ((totaltime (profile-dotemacs-totaltime results)) - current percentage ov) - (while results - (let* ((current (pop results)) - (ov (make-overlay (car current) (cadr current))) - (current (car (last current))) - (percentage (/ (+ (car current) (nth 2 current)) - totaltime)) - col benchstr lowface) - (setq col - (profile-dotemacs-percentage-color - percentage - (face-background 'default) - (face-background 'profile-dotemacs-time-face))) - (setq percentage (round (* 100 percentage))) - (setq benchstr (profile-dotemacs-make-benchstr current)) - (overlay-put ov 'help-echo benchstr) - (if (and (numberp profile-dotemacs-low-percentage) - (< percentage profile-dotemacs-low-percentage)) - (overlay-put ov 'face 'profile-dotemacs-low-percentage-face) - (overlay-put ov 'before-string - (propertize benchstr - 'face 'profile-dotemacs-highlight-face)) - (overlay-put ov 'face - `(:background ,col))))) - (setq ov (make-overlay (1- (point-max)) (point-max))) - (overlay-put ov 'after-string - (propertize - (format "\n-----------------\nTotal time: %.2fs\n" - totaltime) - 'face 'profile-dotemacs-highlight-face)))) - -(defun profile-dotemacs-totaltime (results) - "Calculate total time of RESULTS." - (let ((totaltime 0)) - (mapc (lambda (x) - (let ((cur (car (last x)))) - (setq totaltime (+ totaltime (car cur) (nth 2 cur))))) - results) - totaltime)) - -(defun profile-dotemacs-percentage-color (percent col-begin col-end) - "Calculate color according to PERCENT between COL-BEGIN and COL-END." - (let* ((col1 (color-values col-begin)) - (col2 (color-values col-end)) - (col - (mapcar (lambda (c) - (round - (+ (* (- 1 percent) (nth c col1)) - (* percent (nth c col2))))) - '(0 1 2)))) - (format "RGB:%04x/%04x/%04x" - (car col) - (nth 1 col) - (nth 2 col)))) - -(defun profile-dotemacs-make-benchstr (timings) - "Create descriptive benchmark string from TIMINGS." - (format - (concat - "<Percentage: %d ; " - "Time: %.2f ; " - "Number of GC: %d ; " - "Time for GC: %.2f>\n") - percentage - (car timings) (nth 1 timings) (nth 2 timings))) - - -;; profile-dotemacs.el ends here |