Enjoy a faster rails boot up :D

rvmrc-local

gemset=mayday
old_ruby=ruby-1.9.3-p0
new_ruby=ruby-1.9.3-p0-perf

# Get 30% boast for rails boot, see https://gist.github.com/1688857
export RUBY_HEAP_MIN_SLOTS=1000000
export RUBY_HEAP_SLOTS_INCREMENT=1000000
export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1
export RUBY_GC_MALLOC_LIMIT=1000000000
export RUBY_HEAP_FREE_MIN=500000

if [[ "`rvm current`" == "${old_ruby}@${gemset}" ]]; then
  if [[ 0 == `rvm list | grep --color=never "$new_ruby" | wc -l` ]]; then
    curl https://raw.github.com/gist/1688857/rvm.sh | sh
    rvm use --create ${new_ruby}@${gemset}
    bundle install
  else
    rvm use ${new_ruby}@${gemset}
  fi  
fi