Ken Takata wrote:
> > > 2017/5/26 Fri 22:36:40 UTC+9 Ken Takata wrote:
> > > > > 096.000 047.000 044.000: sourcing D:\Logiciels\Vim\vim80/menu.vim
> > > > > 096.000 072.000 025.000: sourcing D:\Logiciels\Vim\vim80\filetype.vim
> > > >
> > > > menu.vim uses `globpath()` to search some kind of files under the
> > > runtimepath.
> > > > If you search `globpath` in menu.vim, you may find the following lines:
> > > >
> > > > let s:n = globpath(&runtimepath, "colors/*.vim")
> > > > let s:n = globpath(&runtimepath, "keymap/*.vim")
> > > > let s = globpath(&rtp, "spell/*." . enc . ".spl")
> > > > let s:n = globpath(&runtimepath, "compiler/*.vim")
> > > >
> > > > Color schemes, keymaps, spell files and compiler plugins are searched when
> > > > menu.vim is loaded.
> > > > This is why it takes long time to be loaded.
> > > >
> > > > Unlike those items, file types are not listed automatically. If a user
> > > > selects "Syntax" -> "Show File Types in Menu", they will be listed.
> > > > If we use a similar way for color schemes etc., the startup time would be
> > > > reduced.
> > >
> > > I wrote a patch for reduce the loading the of menu.vim by skip using
> > > globpath().
> > >
> > > https://bitbucket.org/k_takata/vim-ktakata-mq/src/bf92d701bca2ef46f6caa64aae89438e039370bb/improve-loading-menu.vim.patch?at=default&fileviewer=file-view-default
> > >
> > > Instead of searching colors/*.vim and other files, the following menuitems are
> > > added in the menu:
> > >
> > > Edit > Show Color Schemes in Menu
> > > Edit > Show Keymaps in Menu
> > > Tools > Show Compiler Settings in Menu
> > >
> > > If these menuitems are selected, all available colorschemes etc. are shown
> > > in the menu. If a user want to load them at startup, the following line
> > > can be added in .vimrc:
> > > :let do_globpath_menus = 1
> > > (This is similar to `:let do_syntax_sel_menu = 1`.)
> > >
> > >
> > > In my environment, the loading time of menu.vim is:
> > > Without this patch: 30 - 50 ms
> > > Skip using globpath: 15 - 20 ms
> >
> > Not a very big difference. But still worth it if you never use those
> > menus.
> >
> > I wonder if we can do this lazily. Thus fill in the missing entries
> > when we start waiting for the user to type. Should be around the same
> > place where timers may be triggered. Not sure if we can do it with an
> > actual timer from the menu.vim script though. Might need a special kind
> > of timer. Perhaps an "idle timer"?
>
> How about this additional patch, then?
> https://bitbucket.org/k_takata/vim-ktakata-mq/src/938cf6a5e03ef2ccbc131ca2a3eb5bae364beb7b/improve-loading-menu.vim-cursorhold.patch?at=default&fileviewer=file-view-default
>
> This uses CursorHold to load the menuitems when idle.
I like the idea. I'll wait for a few people to try it out.
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