Re: Redisplay: NS port, high CPU load

[David Reitter]

On Jun 10, 2016, at 4:02 PM, Anders Lindgren <address@hidden> wrote:

> I will be away for the weekend, so if you have write access, feel free to 
> commit it yourself. Otherwise, I can do it at the beginning of next week. 
> Personally, I think this should go into the emacs-25 branch but we will have 
> to get that approved from John or Eli.

Good, I have checked in the change.

Eli, this addresses a high-CPU-load condition on OS X when a revert-buffer icon 
is present in the toolbar and the current buffer was unmodified.  This may or 
may not be the somewhat difficult-to-trace 100% CPU load bug a lot of us have 
been seeing on OSX.   The functionality of the utf-8-hfs coding system for the 
filesystem is preserved is tests.

I would suggest to merge this into emacs-25.

Also, I would suggest to check whether code like this should indeed trigger an 
update_frame_tool_bar.

  (with-temp-buffer
   (insert "XXX"))