Re: Redisplay: NS port, high CPU load

[David Reitter <david.reitter@gmail.com>]

On Jun 9, 2016, at 5:55 AM, Alan Third <alan@idiocy.org> wrote:

> Does the Aquamacs toolbar use different images or something, or is it
> identical to the GNU Emacs one?

No it uses different images and provides a different set of commands.

The offending item seems to be revert-buffer.  Indeed, if in disabled state, updates go on and on.  As soon as you modify the buffer, it’s enabled, and updates stop.  Here’s the entry from tool-bar-map:

(revert-buffer menu-item "Revert Buffer" revert-buffer :enable
		(or
		 (not
		  (eq revert-buffer-function 'revert-buffer--default))
		 (not
		  (eq revert-buffer-insert-file-contents-function 'revert-buffer-insert-file-contents--default-function))
		 (and buffer-file-number
		      (or
		       (and buffer-file-name
			    (file-remote-p buffer-file-name))
		       (buffer-modified-p)
		       (not
			(verify-visited-file-modtime
			 (current-buffer))))))
		:help "Re-read current buffer from its file" :image
		(image :type png :file "/Users/dr/emacs/nextstep/Aquamacs.app/Contents/Resources/etc/images/update.tiff" :background "grey" :mask heuristic)
		:label "Revert")