Ok, so this guy wrote about some CFLAGS you can set when compiling ruby to improve performance and after I did so, I ran into some issue with gems that did not like my new default CFLAGS.
First I re-installed my ruby like so.
$ CC=clang rvm reinstall 1.9.3 --patch falcon
Then I ran
$ bundle and received compilation errors. To get around these errors I did the following for each:
$ gem install <gem_name> -v 'x.x.x' -- --with-cflags="-02 -pipe -march=native -w"
In particular I had issues with