From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Processing speed in large C++ raw strings.
Date: Fri, 26 Apr 2019 22:15:23 -0400 [thread overview]
Message-ID: <jwvy33wjiy4.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: CAN-HRFaPsVzNocOdBcUr4xb5ahuAnboaJonczMh3nQcL_DZzdQ@mail.gmail.com
>> I have now optimized CC Mode, such that each such self-insert-command
>> now takes around 0.07s-0.1s. I used two strategies for this: (i) breaking out
>> of (expensive) fontification routines early, when the region being
>> fontified is nothing but a string; (ii) Not fontifying the entire raw
>> string for a change to only a small part of it.
>
> I have been working with C++ template metaprograms for two years, and
> since quite early, I have experienced CC Mode being very sluggish that
> I often switch back-and-forth between cc-mode and text-mode.
Could you try out the "quick hack patch" I sent in
https://debbugs.gnu.org/35316 ?
It has a few known bugs, so it would require further work to be really
useful, but I'd be interested to know if it helps your use case.
> `emacs -Q' to visit the file locally. Then, to experience the
> sluggishness, I pressed M-> followed by M-v several times.
FWIW, I don't expect my patch will help this use-case.
Stefan
next prev parent reply other threads:[~2019-04-27 2:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-25 18:36 Processing speed in large C++ raw strings Alan Mackenzie
2019-04-26 1:25 ` Dmitry Gutov
2019-04-26 20:15 ` Tadeus Prastowo
2019-04-27 2:15 ` Stefan Monnier [this message]
2019-04-27 10:37 ` Tadeus Prastowo
2019-04-27 11:37 ` Alan Mackenzie
2019-04-27 15:35 ` Tadeus Prastowo
2019-04-27 17:29 ` Alan Mackenzie
2019-04-30 14:44 ` Tadeus Prastowo
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