GNU bug report logs - #41200
Displaying a tooltip with x-show-tip gets very slow as more faces are defined

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Package: emacs;

Reported by: Clément Pit-Claudel <cpitclaudel <at> gmail.com>

Date: Tue, 12 May 2020 04:31:01 UTC

Severity: normal

Tags: moreinfo, patch

Merged with 41267

Found in version 26.3

Fixed in version 28.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Clément Pit-Claudel <cpitclaudel <at> gmail.com>
To: martin rudalics <rudalics <at> gmx.at>, 41200 <at> debbugs.gnu.org
Subject: bug#41200: Displaying a tooltip with x-show-tip gets very slow as more faces are defined
Date: Tue, 12 May 2020 07:30:01 -0400

On 12/05/2020 02.42, martin rudalics wrote:
>> Is seems that defining a face makes x-show-tip a tiny bit slower, but
>> these effects stack.
> 
> Please try with 'tooltip-reuse-hidden-frame' non-nil (there's nothing we
> can do about a session's first tooltip appearance, though).

I'm not seeing a difference here.  I used this code to test:


(defun my-def-many-faces (nfaces)
  (dotimes (i nfaces)
    (custom-declare-face
     (intern (format "my-face-%d" i))
     '((t)) "A face."
     :group 'basic-faces)))

(defun my-bench-x-tip (nfaces)
  (setq x-gtk-use-system-tooltips nil
        tooltip-reuse-hidden-frame t)
  (my-def-many-faces nfaces)
  (benchmark-run 1 (x-show-tip "Test" (selected-frame) nil 5 nil nil)))
This bug report was last modified 3 years and 304 days ago.

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