Making your ruby fly

2x improvement in my 'rake spec' runtime... not bad!<p>If you're using rbenv, you can pass CFLAGS to it on the command line, like so: `CFLAGS='-O2' rbenv install ...`

For a better understanding of CFLAGs in general: <a href="http://www.gentoo.org/doc/en/gcc-optimization.xml" rel="nofollow">http://www.gentoo.org/doc/en/gcc-optimization.xml</a>

That is 6x improvement in speed. Why cant some of these become default?

Anyone knows the CFlags for EC2 instances?

for rvm<p>`rvm install ruby-1.9.3-p286 --patch falcon -n falcon`