From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.devel Subject: Re: Emacs's set-frame-size can not work well with gnome-shell? 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X-Received-From: 2a00:1450:4864:20::12e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:244317 Archived-At: On 18.01.2020 5:05, Dmitry Gutov wrote: > Alternatively, if we can't make resizing child frames work reliably, > maybe prohibit it on the API level? And then work on making sure that > deleting and re-creating a new child frame, and showing a buffer there, > is fast enough. BTW, this already gives me a bit better performance than the original resize-test (0.7s for 10 iterations vs 1.0s for the same, and a lot of that 0.7 is spent in GC): (defun open-test (buffer width height) (display-buffer-in-child-frame buffer `((child-frame-parameters . ((width . ,width) (height . ,height) (top . 50) (left . 50) ))))) (defun resize-test (frame height) (let ((width (frame-width)) (buf (window-buffer (frame-first-window frame)))) (delete-frame frame) (open-test buf width height))) (setq-local test-buffer (get-buffer-create "test child-frame")) (setq-local test-frame (window-frame (open-test test-buffer 40 10))) (benchmark 10 '(setq-local test-frame (window-frame (resize-test test-frame 10)))) But an overlay-based popup is an order of magnitude faster still. And that's important because we really can't make the user wait for 70-100ms for Emacs to react to input.