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Notes: Add a benchmark

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Adam Porter 2019-08-29 06:42:13 -05:00
parent aff6f22fee
commit d8d2455a2c
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@ -1808,3 +1808,34 @@ An idea that /might/ be helpful for performance in /some/ cases, depending on th
|--------------+--------------------+---------------+----------+------------------|
| normal | 4.03 | 0.275053 | 0 | 0 |
| intersection | slowest | 1.109169 | 0 | 0 |
** [2019-08-29 Thu 06:24] Benchmarking org-ql compared to re-search-forward for getting headings in buffer
:PROPERTIES:
:ID: fcc09229-ed24-42eb-a1fd-31d8f7d4c8d5
:END:
Minimal difference, and that's a very large file, too. On smaller files it's thousandths of a second.
#+BEGIN_SRC elisp
(with-current-buffer (find-buffer-visiting "~/org/inbox.org")
(bench-multi-lexical :times 1 :ensure-equal t
:forms (("org-ql" (org-ql-select (current-buffer)
'(level 1)
:action '(progn
(font-lock-ensure (line-beginning-position) (line-end-position))
(cons (org-get-heading t) (point)))))
("re-search-forward" (org-with-wide-buffer
(goto-char (point-min))
(when (org-before-first-heading-p)
(outline-next-heading))
(cl-loop while (re-search-forward (rx bol "*" (1+ blank)) nil t)
do (font-lock-ensure (line-beginning-position) (line-end-position))
collect (cons (org-get-heading t) (match-beginning 0))))))))
#+END_SRC
#+RESULTS:
| Form | x faster than next | Total runtime | # of GCs | Total GC runtime |
|-------------------+--------------------+---------------+----------+------------------|
| re-search-forward | 1.17 | 0.520375 | 0 | 0 |
| org-ql | slowest | 0.608281 | 0 | 0 |