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Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%
From: |
Eli Zaretskii |
Subject: |
Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7% |
Date: |
Wed, 01 Sep 2021 20:44:23 +0300 |
> Date: Wed, 1 Sep 2021 17:33:06 +0000
> From: Alan Mackenzie <acm@muc.de>
>
> When applied to C Mode, bug-reference-prog-mode slows down a scroll from
> point-min to point-max by around 7%.
>
> Just how useful is bug-reference-prog-mode? Is it really worth this 7%
> slowdown?
It is marginally useful, but 7% slowdown is too heavy a price, IMO.
This should be fixed.
(I thought that the code in jit-lock.el already handled this case by
computing a kind-of "maximum" out of all the return values of
jit-lock-functions, and treating a nil return value as expected, but
maybe my reading of the code was incorrect?)
Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Stefan Monnier, 2021/09/01