Re: redundant redisplay

[Miles Bader]

On Tue, Apr 27, 2004 at 10:57:38AM -0700, Tak Ota wrote:
> Some recent change, which I cannot identify, affects the redisplay
> mechanism so that set-buffer-modified-p redisplays window contents
> redundantly.  It creates occasional annoying partial screen flashing
> as well as considerably slows down a buffer process which updates
> modeline frequently.

Hmmm, I've noticed that recent version of emacs have started flickering like
crazy in some circumstances, but haven't had much time to debug it.[*]

I mostly see this in Gnus *Summary ...* buffers: the whole (summary) window
will suddenly start flickering, and it seems that it's redrawing the entire
window constantly.

I don't know if this is connected with set-buffer-modified-p or not though.

[*] Insert my usual disclaimer that I use a fairly hacked emacs, and haven't
    tested whether this behavior occurs in vanilla emacs or not.

Thanks,

-Miles
-- 
In New York, most people don't have cars, so if you want to kill a person, you
have to take the subway to their house.  And sometimes on the way, the train
is delayed and you get impatient, so you have to kill someone on the subway.
  [George Carlin]