file_rec/async:! extremely slow

[carlesandres]

• Problems summary
  When I invoke Unite -no-split -buffer-name=files -start-insert file_rec/async:! and I start typing a file name, it takes seconds to start to showing results. Moreover, despite having selected Ag as a my grep file, all the files in my .gitignore file still get in the list. After 10 more seconds in the list, Vim gets completely blocked for more 30seconds.

  The first I invoke the function it works as expected, but the from second one it is reaaaaally slow.

• Expected
  You know, smooth and fast behaviour.

• Environment Information

  • OS: 10.9.4
  • Vim version: 7.4

• Minimal vimrc less than 50 lines

" Your vimrc
" Set up some custom ignores
call unite#custom_source('file_rec,file_rec/async,file_mru,file,buffer,grep',
      \ 'ignore_pattern', join([
      \ '\.git/',
      \ ], '\|'))

if executable('ag')
  let g:unite_source_rec_async_command= 'ag --follow --nocolor --nogroup --hidden -g ""'
  let g:unite_source_grep_command = 'ag'
  let g:unite_source_grep_default_opts = '--column --nogroup --nogroup'
  let g:unite_source_grep_recursive_opt = ''
endif

" let g:unite_source_rec_max_cache_files = 99999

" See https://github.com/Shougo/unite.vim/issues/236#issuecomment-51983184
let g:unite_source_rec_unit = 250

let g:unite_source_history_yank_enable = 1
" call unite#filters#sorter_default#use(['sorter_rank'])
call unite#filters#matcher_default#use(['matcher_fuzzy'])
nnoremap <leader>h :<C-u>Unite -no-split -buffer-name=files   -start-insert file_rec/async:!<cr>
nnoremap <leader>F :<C-u>Unite -no-split -buffer-name=files   -start-insert file<cr>
nnoremap <leader>r :<C-u>Unite -no-split -buffer-name=mru     -start-insert file_mru<cr>
nnoremap <leader>y :<C-u>Unite -no-split -buffer-name=yank    history/yank<cr>
nnoremap <leader>e :<C-u>Unite -no-split -buffer-name=buffer  buffer<cr>
nnoremap <leader>b :<C-u>Unite -no-split -buffer-name=buffer  -start-insert buffer<cr>
nnoremap <leader>G :<C-u>Unite -no-split grep:.<cr>

• Reproducable ways from Vim starting

I don't really quite get what this means.

0.startup vim.
1.
2.
3.

• Screen shot (if possible)

[carlesandres]

I also create a profile.log file following these instructions: http://stackoverflow.com/questions/12213597/how-to-see-which-plugins-are-making-vim-slow , but it is quite large and I am not really sure what are the parts that could be useful.

[Shougo]

#719
#701

It is Vim's GC problem. I cannot fix it.

[Shougo]

Fixed in Vim 7.4.615

https://groups.google.com/forum/#!topic/vim_dev/pXjj7rww5RY

[carlesandres]

Great. Thanks for the info.