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bug#14966: 24.3.50; Char-displayable-p is a very long running function
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From: |
Eli Zaretskii |
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Subject: |
bug#14966: 24.3.50; Char-displayable-p is a very long running function |
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Date: |
Sat, 27 Jul 2013 13:49:08 +0300 |
> From: "Sebastien Vauban" <sva-news@mygooglest.com>
> Date: Sat, 27 Jul 2013 11:47:30 +0200
>
> When looking at the performance of my .emacs at startup time, I've noticed
> that (char-displayable-p) takes around 400 ms (!) to execute itself...
It calls the font driver to actually encode the character. That could
look up several fonts. FWIW, I see 219 ms on my i7 Windows desktop.
Unless char-displayable-p is called in an inner loop (is it?), this
shouldn't really matter, should it?