Re: master 616da8fa8e: Merge branch 'feature/fix-the-long-lines-display-bug'

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> Read the code ;-)

I think it would be more useful to explain what the user can (and can
not) expect from those "specific optimizations".  Otherwise, it is not
possible to make an intelligent decision about the value of that option.

For example, describing that vertical-motion is still slow when point is
on a long line would be very helpful.

If that isn't possible, then it would be good to at least explain that
the optimization (note the singular case) is temporary narrowing of the
buffer during redisplay.