Vim hangs on saving when the package is large

[typeless]

Every time I edit a file in the Go toolchain like /src/cmd/internal/gc/lex.go, it hangs for seconds on saving the file and keeps consuming 100% CPU at the same time. I can find the program 6g working hard in the background by using the 'top' command. The problem happens on both Ubuntu (I forget the version and I can't reach it right now) and MacOSX 10.10.2.

:let g:go_fmt_autosave=0 doesn't fix the problem as I expected. I would like to know what other actions would be taken on file saving.

[fatih]

Are you using any other vim plugins, such as syntastic ? They are compiling the files on every save which causes this. Otherwise vim-go doesn't call anything once you disable it. Other problems might be syntax highlighting (try to disable them) and don't use goimports which is very slow on large GOPATH directories.

[typeless]

Yes, I do.
After removing syntastic from my .vim/bundle, the problem disappears.
Please close the issue.
Thanks alot.

[fatih]

You're welcome :)

[dpetersen]

If anyone else ends up here like I did, I had the same problem and added a shortcut for SyntasticToggleMode that I use on my projects with longer compile times. In "passive" mode, Syntastic will still do a basic syntax check, and anything blatantly wrong will be flagged as an error. It's fast and it's better than nothing.

[benmoss]

Also had this same problem with https://github.com/roxma/nvim-completion-manager, wasn't only on saves, it was everytime I opened files.

[bhcleek]

I suspect this may be due to gocode. Can you give #1697 a try to see if it mitigates the hangs when opening files?