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Re: 23.0.50; MacOS X 10.4: very slow visuals, multi-tty patch suspected

From: Dan Nicolaescu
Subject: Re: 23.0.50; MacOS X 10.4: very slow visuals, multi-tty patch suspected
Date: Thu, 06 Sep 2007 09:10:09 -0700

Ted Zlatanov <address@hidden> writes:

  > On Thu, 06 Sep 2007 07:14:54 -0700 Dan Nicolaescu <address@hidden> wrote: 
  > DN> Ted Zlatanov <address@hidden> writes:
  > >> Started Emacs without any init functionality to confirm this
  > >> performance issue.
  > >> 
  > >> Visual operations (e.g. line down/up) are much, much slower than in
  > >> my last CVS build from 2 weeks ago.  There is a perceptible lag every
  > >> time I press up/down arrow for example.  I didn't see a way to compile
  > >> without multi-tty at the configure level to confirm the multi-tty
  > >> patch is the problem, but I suspect it.  It may be related that
  > >> (start-server) doesn't start the Emacs server.
  > >> 
  > >> Nonvisual operations, e.g. Gnus loading, are as fast as they were
  > >> before based on observation but no hard numbers.
  > DN> This is a known problem (it has been reported before), unfortunately
  > DN> nobody seems to care enough about that platform to try to fix it and
  > DN> there is no active maintainer for it.
  > If the problem appeared with the recent multi-tty merge, as I am
  > guessing, wouldn't it make sense to look at at least disabling that
  > functionality selectively as configure options?  

No, it would be much more complex that just simply fixing the mac
port. I think the input processing is simply not initialized
correctly/completely. My guess is that it would be a few lines of code
to fix this. But someone that cares about that platform would need to
do the work. 

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