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Re: Display slowness that is painful

From: Richard M. Stallman
Subject: Re: Display slowness that is painful
Date: Sat, 04 Feb 2006 13:27:41 -0500

    I traced this to emacs starting to process SELECTION_REQUEST_EVENT
    events after each redisplay round -- and consequently doing another

Why did Emacs get a SELECTION_REQUEST_EVENT at all?
Normally that should happen only if you try to paste
into another app some text that you selected in Emacs.
Did you do that?

When people do that, normally Emacs is idle, not redisplaying
anything.  Of course, it could be running some sort of program
that would keep on redisplaying.  Was that the situation?

One other question is, why does Emacs redisplay after handling a
SELECTION_REQUEST_EVENT?  Is it because this arrives during redisplay
and pre-empts it? 

Are you saying that Emacs receives a series of SELECTION_REQUEST_EVENTs,
pre-empting redisplay over and over?  If so, why do they arrive?

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