Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3

[Stefan Monnier]

>> > BTW, you can also set `jit-lock-defer-time` to 0 in which case jit-lock
>> > is deferred iff there's input pending.
>> > [ This refinement of `jit-lock-defer-time` was introduced last time
>> >    this kind of discussion took place, which is also the time
>> >    `fast-but-imprecise-scrolling` was introduced.  ]
>> 
>> Thanks. I tried it (and mentioned in the parent thread), but it seems
>> like in addition to the downsides of f-b-i-s (imprecise scrolling, which
>> apparently makes it a bad candidate for default behavior) it adds some
>> extra flickering from time to time (I figured because some redisplays
>> occurred before the idle timer had the chance to run).
>
> Which is why I don't think using 0 is such a good idea.

It's definitely not good enough to be used as a default value, agreed.


        Stefan