CJK support makes evil-forward-word-begin slow

[Barry OReilly]

You byte compiled Evil right?  'make' does it.



On Tue, Jul 31, 2012 at 4:29 PM, Nikolai Weibull <now at bitwi.se> wrote:

> On Tue, Jul 31, 2012 at 10:11 PM, Frank Fischer
> <frank-fischer at shadow-soft.de> wrote:
> > Am Tue, 31 Jul 2012 17:40:49 +0200
> > schrieb Nikolai Weibull <now at bitwi.se>:
>
> >> I just hold down ‘w’ and let it auto-repeat.  Did you try that?
> >
> > Yes, that's what I tried but apparently on a too powerful machine ...
>
> Ah, so it was a question of computing power, after all.
>
> >> I ran with emacs -Q and load evil manually, with the same result
> >> (Fundamental mode).  It’s not an old machine either (but I don’t think
> >> that’s relevant, as this command shouldn’t be slow on any sort of
> >> machine).
> >
> > Certainly you're right, it should be fast. I've just tried it again on
> > my old notebook and there holding 'w' pressed shows a big slowdown (the
> > cursor does not move at all until the button is released).
>
> > The problem is that evil does a lot of cleanup work after each single
> > command (usually in post-command-hooks, for example the repeat-system
> > and cursor adjustment at the eol and eob). And this is partially
> > relatively expensive (compared to a single forward-word) and probably
> > be improved (IIRC there's a function `evil-adjust-cursor' that
> > sometimes does some heavy stuff and it is called in forward word
> > motions but not in the backward direction).
>
> I’m on a 2 GHz Intel Core 2 Duo.  This work your talking about must
> somehow be shuffling around a lot of memory or something similarly
> expensive.  Is the gap being moved?  I mean, what can be so expensive?
>  Is it the use of saved restrictions/excursions?
>
> It makes me sad when a text editor is slow in the year 2012 (on late
> year 2008 hardware).  (I’m not blaming you, it’s just sad that this
> can even occur.)
>
> I guess the upshot is that it gives me added incentive to try to stop
> just holding down movement keys and instead use isearch or pressing
> “10w”.
>
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