Re: Display slowness that is painful

[Chong Yidong]

Stefan Monnier <address@hidden> writes:

>> This is *really* not the time to make changes in redisplay.  I think
>> the problem here is simply that if you want to display characters as
>> \XXX, the redisplay iterator has to go through four times as many
>> glyphs.
>
> Huh?  Four times more glyphs per char/byte, yes.
> But four times fewer chars/bytes get displayed, so it should be a wash.
>
> In utf-8 environments, unibyte_display_via_language_environment doesn't make
> much sense, and around here utf-8 environments are becoming the norm.

I'm confused.  How does it make sense to display characters in \XXX
format instead?  Both methods produce gibberish (as one would expect
of a binary file).  So we might as well choose the gibberish that
redisplays faster.