The fast version is a filetype.vim script in my ~/. vim. If there is a cost
to these settings, why does it show up with ftdetect but not a local
filetype.vim?
Also most machines are not on vim 8, and thus still think .md is modula 2.
--
Sent from a telephone. Pardon my brevity.
On May 23, 2017 1:52 AM, "Bram Moolenaar" <b...@moolenaar.net> wrote:
>
> Frew Schmidt wrote:
>
> > I recently discovered that using ftdetect is absurdly slower than
> filetype.vim. To reproduce, try this:
> >
> > mkdir -p ~/.vim/ftdetect
> > echo 'autocmd BufNew,BufNewFile,BufRead *.md :set
> filetype=markdown' > ~/.vim/ftdetect/markdown.vim
> > mkdir testing
> > cd testing
> > touch {1..500}.md
> > vim
> > :args *
>
> What do you compare this with? Filetype detection already has this rule
> for markdown, thus the extra markdown.vim file isn't needed.
>
> Perhaps you can get some more information by setting 'verbose' to a
> non-zero number, e.g. ten.
>
> From your logs it looks like one run detects the filetype only for the
> one file that is loaded, while the other does it for every file in the
> argiument list. Looks like something causes loading of every file.
>
> > Here's vim --version:
> >
> > VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Mar 17 2017 12:13:35)
> > Included patches: 1-95
> > Modified by pkg-vim-maintain...@lists.alioth.debian.org
> > Compiled by pkg-vim-maintain...@lists.alioth.debian.org
> > Huge version with GTK3 GUI. Features included (+) or not (-):
> > +acl +file_in_path +mouse_sgr +tag_old_static
> > +arabic +find_in_path -mouse_sysmouse -tag_any_white
> > +autocmd +float +mouse_urxvt +tcl
> > +balloon_eval +folding +mouse_xterm +termguicolors
> > +browse -footer +multi_byte +terminfo
> > ++builtin_terms +fork() +multi_lang +termresponse
> > +byte_offset +gettext -mzscheme +textobjects
> > +channel -hangul_input +netbeans_intg +timers
> > +cindent +iconv +num64 +title
> > +clientserver +insert_expand +packages +toolbar
> > +clipboard +job +path_extra +user_commands
> > +cmdline_compl +jumplist +perl +vertsplit
> > +cmdline_hist +keymap +persistent_undo +virtualedit
> > +cmdline_info +lambda +postscript +visual
> > +comments +langmap +printer +visualextra
> > +conceal +libcall +profile +viminfo
> > +cryptv +linebreak -python +vreplace
> > +cscope +lispindent +python3 +wildignore
> > +cursorbind +listcmds +quickfix +wildmenu
> > +cursorshape +localmap +reltime +windows
> > +dialog_con_gui +lua +rightleft +writebackup
> > +diff +menu +ruby +X11
> > +digraphs +mksession +scrollbind -xfontset
> > +dnd +modify_fname +signs +xim
> > -ebcdic +mouse +smartindent +xpm
> > +emacs_tags +mouseshape +startuptime +xsmp_interact
> > +eval +mouse_dec +statusline +xterm_clipboard
> > +ex_extra +mouse_gpm -sun_workshop -xterm_save
> > +extra_search -mouse_jsbterm +syntax
> > +farsi +mouse_netterm +tag_binary
> > system vimrc file: "$VIM/vimrc"
> > user vimrc file: "$HOME/.vimrc"
> > 2nd user vimrc file: "~/.vim/vimrc"
> > user exrc file: "$HOME/.exrc"
> > system gvimrc file: "$VIM/gvimrc"
> > user gvimrc file: "$HOME/.gvimrc"
> > 2nd user gvimrc file: "~/.vim/gvimrc"
> > defaults file: "$VIMRUNTIME/defaults.vim"
> > system menu file: "$VIMRUNTIME/menu.vim"
> > fall-back for $VIM: "/usr/share/vim"
> > Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK
> -pthread -I/usr/include/gtk-3.0 -I/usr/include/at-spi2-atk/2.0
> -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0
> -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/gtk-3.0
> -I/usr/include/gio-unix-2.0/ -I/usr/include/mirclient
> -I/usr/include/mircore -I/usr/include/mircookie -I/usr/include/cairo
> -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0
> -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1
> -I/usr/include/freetype2 -I/usr/include/libpng16
> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16
> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
> -Wdate-time -g -O2 -fdebug-prefix-map=/build/vim-8krYYf/vim-8.0.0095=.
> -fPIE -fstack-protector-strong -Wformat -Werror=format-security
> -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
> > Linking: gcc -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now
> -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,-E
> -Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now -Wl,--as-needed
> -o vim -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -latk-1.0
> -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0
> -lSM -lICE -lXpm -lXt -lX11 -lXdmcp -lSM -lICE -lm -ltinfo -lnsl
> -lselinux -lacl -lattr -lgpm -ldl -L/usr/lib -llua5.2 -Wl,-E
> -fstack-protector-strong -L/usr/local/lib
> -L/usr/lib/x86_64-linux-gnu/perl/5.24/CORE
> -lperl -ldl -lm -lpthread -lcrypt
> -L/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu
> -lpython3.5m -lpthread -ldl -lutil -lm -L/usr/lib/x86_64-linux-gnu -ltcl8.6
> -ldl -lz -lpthread -lieee -lm -lruby-2.3 -lpthread -lgmp -ldl -lcrypt -lm
> >
> > The docs *do* say that if you are detecting files based purely on names
> you should instead use an autload group in a filetype.vim file, but it's
> pretty far down in the docs and a *lot* of people seem to have made this
> mistake: https://github.com/search?p=4&q=%22set+ft%3Dmarkdown%22+
> language%3Avim&type=Code&utf8=%E2%9C%93
> >
> > I would like to know why this is slower, but more, if filetype.vim needs
> to be used for filename based filetype detection, and functions need to be
> defined in scripts.vim for content detection, what good is ftdetect anyway?
>
> Each sourced file has overhead, the more files you add that are sourced
> when opening a file the slower Vim gets.
>
> The ftdetect files are good when you want to just drop a file in a
> directory. Installing a package is simpler that way. Otherwise
> installing a package for a file type would require editing
> the filetype.vim script.
>
> --
> SOLDIER: What? Ridden on a horse?
> ARTHUR: Yes!
> SOLDIER: You're using coconuts!
> "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES
> LTD
>
> /// Bram Moolenaar -- b...@moolenaar.net -- http://www.Moolenaar.net
> \\\
> /// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/
> \\\
> \\\ an exciting new programming language -- http://www.Zimbu.org
> ///
> \\\ help me help AIDS victims -- http://ICCF-Holland.org
> ///
>
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