Frew Schmidt wrote:

> On Tuesday, May 23, 2017 at 9:40:02 AM UTC-7, Frew Schmidt wrote:
> > On Tuesday, May 23, 2017 at 9:16:45 AM UTC-7, Frew Schmidt wrote:
> > > > Perhaps you can get some more information by setting 'verbose' to a
> > > > 
> > > > non-zero number, e.g. ten.
> > > 
> > > 
> > > Well, I ran it with -V10 and even after deleting both ~/.vim/ (except for 
> > > the ftdetect file) and ~/.vimrc and I can still reproduce it.  It looks 
> > > about the same as before: the markdown support is getting reloaded for 
> > > every file instead of once at the beginning.  I don't know how to store 
> > > :messages in a file or I'd attach them.
> > 
> > Another interesting detail: it's not slow if I set the filetype to 
> > sillybonk or perl, so this is somehow related to the markdown support.  I 
> > think I'll bisect the markdown files and see which one causes it, and then 
> > bisect the file itself.
> 
> If I replace the contents of /usr/share/vim/vim80/syntax/vb.vim with `let 
> b:current_syntax = "vb"` everything is fast and, as I would hope, the support 
> files are not loaded N times per buffer but instead exactly once.
> 
> I verified as well by putting the contents back and setting the filetype to 
> `vb` and I can continue to reproduce the issue.
> 
> I still don't know why ftdetect causes this and filetype.vim does not, and I 
> also don't see what's wrong with the vb support files.

I'm afraid this doesnt make any sense.  I would suggest to reinstall
Vim, making sure you first delete all Vim related files (make a backup
of your preferences somewhere).

-- 
THEOREM: VI is perfect.
PROOF: VI in roman numerals is 6.  The natural numbers < 6 which divide 6 are
1, 2, and 3. 1+2+3 = 6.  So 6 is a perfect number.  Therefore, VI is perfect.
QED
                                                    -- Arthur Tateishi

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\\\  an exciting new programming language -- http://www.Zimbu.org        ///
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