Vim startup time profiler

collect-times

#!/bin/bash

while sleep 0.5; do vim --startuptime "$@" >(./startup-info) +qall; done

# usage: ./collect-times
#   Running this will collect startup times in `times' directory.
#   It will run it multiple times so that the averages start converging.
#   Whenever you remove a plugin, it gets stored as a different version,
#   which will be shown at 'watch ./watcher'.

startup-info

#!/bin/sh

# usage: through collect-times

hash16() {
    md5sum | dd bs=16 count=1 2> /dev/null
}

store='times'
version="$store/$1$(find ~/.vim | hash16)"
key='before.*main loop'
key='editing files in windows'

mkdir -p times

find ~/.vim > $version
grep "$key" | sed 's/ .*//' >> $version-time

watcher

#!/bin/sh

average() {
    ruby -e 'lines = 0
        sum = 0.0
        $<.each_line do |line|
        sum += line.to_i
        lines += 1
        end

        n=10000
        puts ((sum/lines*n).to_i.to_f/n)
    ' "$@"
}

cd times
for id in $(ls | grep -v -- '-time'); do
    echo $(average $id-time) : $id : $(cat $id | grep -Eo 'bundle/[^/]+$' | xargs -L1 basename)
done | column -ts : -o : | sort -n

# usage: watch ./watcher