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bug#11697: 24.1.50; ERC scroll-to-bottom functionality 'broken' in emacs

From: Deniz Dogan
Subject: bug#11697: 24.1.50; ERC scroll-to-bottom functionality 'broken' in emacs 24.1.x
Date: Thu, 14 Jun 2012 23:10:26 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120604 Thunderbird/13.0

On 2012-06-14 23:03,, Antoine Levitt wrote:
14/06/12 22:51, Deniz Dogan
The excessive CPU consumption comes from the fact that it nowadays
uses post-command-hook, which is executed just about all the time.  :)

I don't think so, I had excessive CPU consumption before the code used
post-command-hook (main way to trigger is to hold a random key down
while watching the result of top. It's already appalling in ERC without
erc-scrolltobottom, but it's even worth with it).

The way I see it, this scrolltobottom thing is a problem that is global
to emacs and has nothing to do with ERC in particular. For instance, I
also want my shell buffers not to scroll past the end of
buffers. Actually I think (but am not sure ; it would require testing)
I'd want all buffers to behave that way, and never, ever display
anything past the end of the buffer. An ideal solution would be a local
variable, that'd inhibit "bad" recentering (and therefore would not
incur any performance loss, as I believe the main loss is when a hook
recenters after it has already been recentered). But that's more

I agree. Another improvement, especially for IRC clients, would be to allow for buffers to start growing from the bottom of the window, much like Irssi and mIRC.

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