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Re: Why emacs rendering is slow when encountering long lines?
From: |
Eli Zaretskii |
Subject: |
Re: Why emacs rendering is slow when encountering long lines? |
Date: |
Mon, 21 Oct 2013 19:36:53 +0300 |
> From: Jules Colding <colding@venalicium.dk>
> Date: Mon, 21 Oct 2013 16:39:39 +0200
> Cc: help-gnu-emacs@gnu.org
>
> I have a file here:
>
> https://github.com/colding/MercuryFIX/blob/master/applib/fixio_tests/check_fixio.cpp
>
> which has an extremely long word (one font, all caps) at line 213. As soon as
> scrolling down comes within 2-3 lines distance, everything stops for a second
> or two.
>
> Just a datapoint...
That's an entirely different issue. To see why, type
M-x global-font-lock-mode RET
and then visit that file and scroll through the problematic spot.
Puff! the problem goes away.
So not really a data point wrt the issue at hand.