This script installs a patched version of ruby 1.9.3-p0 with patches to make ruby-debug work again (#47) and boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84).
Huge thanks to funny-falcon for the performance patches.
If you're using rbenv:
curl https://raw.github.com/gist/1688857/rbenv.sh | sh
If you're using rvm:
curl https://raw.github.com/gist/1688857/rvm.sh | sh
(I haven't tested this one, but it should work. Report back if it doesn't!)
Putting the following in your shell config (eg.
~/.bash_profile) will make Rails even faster, but will increase its memory footprint:
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