bug#69630: breadcrumb-mode and json-ts-mode (possibly yaml-ts-mode, others) performance

[Johann Höchtl]

Oh sorry, I erroneously assumed breadcrumb-mode was an Emacs core 
feature, I will report it against the authors Github repo.

Best, Johann

On 09.03.24 08:24, Eli Zaretskii wrote:
> > From: Johann Höchtl <johann.hoechtl@gmail.com>
> > Date: Fri, 8 Mar 2024 09:54:54 +0100
> >
> > When opening a json file using it's -ts-mode, bread-crumb-mode causes a big 
> > performance impact. This
> > performance impact seems to be more than linear i nrealtion to file size,  
> > doubling in size causes more than
> > doubling the time until emacs becomes responsible again, likely because it 
> > contains more than double the
> > number of nodes to parse.
> >
> > Many other popular editors contain a breadcrumb-feature and having that feature 
> > for json, yaml, xml, ... files
> > seems "natural".
> Isn't that a bug (or mis-feature) in breadcrumb-mode that you should
> report to the developers of breadcrumb-mode?
>
> IOW, why did you think the right place to report this is here?  Any
> evidence that something in Emacs core is causing the performance
> issue?
>
> Thanks.