From: Joel VanderWerf <vjoel@...>
Date: 2009-07-19T05:15:07+09:00
Subject: Re: ruby in 50 milliseconds or less

Roger Pack wrote:
> http://github.com/rogerdpack/faster_rubygems/tree/master

On linux, faster_rubygems seems to have even more of an impact than on 
the windows installation you benchmarked. With about 250 gems installed:

$ time ruby examples/require_rubygems_normal.rb
done
ruby examples/require_rubygems_normal.rb  0.57s user 0.05s system 85% 
cpu 0.726 total

$ time ruby examples/require_fast_start.rb
done
ruby examples/require_fast_start.rb  0.04s user 0.02s system 46% cpu 
0.121 total

Very nice!

I had been thinking of something along similar, locating all gem lib 
dirs. But instead of pushing them all on $:, the idea was to set up a 
single dir with symlinks to all the gem lib dirs. I expect it would be 
faster because it would offload more of the path search to the 
filesystem, rather than to ruby.

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407