GNU bug report logs -
#25706
26.0.50; Slow C file fontification
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Reported by: Sujith <m.sujith <at> gmail.com>
Date: Mon, 13 Feb 2017 18:41:01 UTC
Severity: normal
Tags: moreinfo
Found in version 26.0.50
Done: Alan Mackenzie <acm <at> muc.de>
Bug is archived. No further changes may be made.
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Message #38 received at 25706 <at> debbugs.gnu.org (full text, mbox):
Hello, Mattias.
On Mon, Nov 30, 2020 at 13:46:30 +0100, Mattias Engdegård wrote:
> >> https://raw.githubusercontent.com/qca/qcamain_open_hal_public/master/hal/ar9300/osprey_reg_map_macro.h
> > I tried reproducing this on a pretty new laptop, and opening the file
> > in question (with your settings) took less than a second with Emacs
> > 28.
> My lappy is less new but not really that slow -- compared to the
> hardware of the original reporter it's a speed demon -- but opening the
> file takes almost 4 s here. More importantly, scrolling through the
> file is painfully slow.
Hah! I just tried it, all the way through the file, and it took me
3568.429881811142 seconds, i.e. all of an hour bar 32 seconds.
My machine is no way slow, being a first generation AMD Ryzen from 2017.
> Alan, do you have a diagnose?
Other than what I told you last post (lack of braces), not yet, but I'm
going to take the first tenth of the OP's file (which is 4 Mb) for
testing on.
--
Alan Mackenzie (Nuremberg, Germany).
This bug report was last modified 4 years and 213 days ago.
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