profile.md

Vim Profiling

When a Vim plugin/config is dragging down performance but don't know which

• start Vim, in Normal mode type below commands to enable profiling and push logs to /tmp/vim-profile.log

:profile start /tmp/vim-profile.log
:profile func *
:profile file *

• then do the activity which generally slows it down

• now go back to Normal mode, stop the profiling using :profile pause and quit vim (hope you remember how to quit)

• then cat /tmp/vim-profile.log, at end it will have FUNCTIONS SORTED ON TOTAL TIME where you can see list of operations consuming maximum time in order

• can also run following command to get the top 10 culprit logs

cat /tmp/vim-profile.log | grep -A11 'FUNCTIONS SORTED ON TOTAL TIME'

• example my Top 3 helped me figure out disabling easytags, which helped fix significantly slowed down save time

$ cat /tmp/vim-profile.log | grep -A4 'FUNCTIONS SORTED ON TOTAL TIME'
FUNCTIONS SORTED ON TOTAL TIME
count  total (s)   self (s)  function
    5  13.805628   0.006162  xolox#easytags#autoload()
    1  13.797875   0.001205  xolox#easytags#update()
    1  13.791280   0.007060  xolox#easytags#update#with_vim()

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