How to see which plugins are making Vim slow?

debugging optimization vim macvim
charlax picture charlax · Aug 31, 2012 · Viewed 66k times · Source

Is there a way to profile Vim plugins?

My MacVim becomes slower and slower when I open a large .py. I know I could deselect all plugins and reselect one by one to check which plugin is the culprit, but is there a faster way?

My dotvim is here: https://github.com/charlax/dotvim

Answer

ZyX picture ZyX · Aug 31, 2012

You can use built-in profiling support: after launching vim do

:profile start profile.log
:profile func *
:profile file *
" At this point do slow actions
:profile pause
:noautocmd qall!

(unlike quitting noautocmd is not really required, it just makes vim quit faster).

Note: you won’t get information about functions there were deleted before vim quit.

Related questions

Profiling Vim startup time

I’ve got a lot of plugins enabled when using Vim – I have collected plugins over the years. I’m a bit fed up with how long Vim takes to start now, so I’d like to profile its startup …

Read More
How do I remedy "The breakpoint will not currently be hit. No symbols have been loaded for this document." warning?

A C# desktop application on the express edition worked, but then it didn't work 5 seconds later. I tried the following: Ensure debug configuration, debug flag, and full debug information are set on all assemblies. Delete all bin and obj folders …

Read More
How can I write to the console in PHP?

Is it possible write a string or log into the console? What I mean Just like in JSP, if we print something like system.out.println("some"), it will be there at the console, not at a page.

Read More