Le dim. 19 janv. 2020 à 23:20, Stefan Monnier <monnier@iro.umontreal.ca> a
écrit :

> >> > .... scrolling through an elisp buffer: I started the timer by hand
> and
> >> > scrolled down for 1000 lines ....
> [...]
> >> .... and it took 45s on Windows/WSL and 35s on Windows/native.
>
> 1000 lines divided by 45s is about 22 lines per second.
> If you did that with `C-n` it suggests you're simply using a keyboard
> repeat rate of about 20 repetitions-per-second and Emacs is just neither
> fast nor slow.  35s on native suggests the keyboard repeat rate is
> (surprisingly) different, more like 30 repetitions-per-second.
>
> If Emacs is slow in such a test, you'll notice because it will stop
> refreshing the display at times (hoping that skipping the redisplay time
> will help it keep up with the repeat rate).
>

If I posted this, it is because looking at it, the cursor was like jumping
from line to line,
but it doesn't seem steady. Actually, I changed some setting to get a
faster autorepeat
and emacs keeps up when the time is down to 16s for 1000 lines, more than
twice as
fast.

Best regards,

Fabrice