Ruby 1.9.2@rails3 is 8x slower than 1.8.7@rails2

1.8.7@rails2

Using /home/dave/.rvm/gems/ruby-1.8.7-p334 with gemset rails2-3-10
$ time spec spec/views/people/_header.haml_spec.rb 
No server is running
Running specs locally:
......

Finished in 1.522537 seconds

6 examples, 0 failures

real	0m8.088s
user	0m5.940s
sys	0m1.980s

1.8.7@rails3

Using /home/dave/.rvm/gems/ruby-1.8.7-p334 with gemset rails3-0-9
$ time rspec spec/views/people/_header.haml_spec.rb
......

Finished in 2.93 seconds
6 examples, 0 failures

real	0m16.270s
user	0m11.700s
sys	0m3.810s

1.9.2@rails3

Using /home/dave/.rvm/gems/ruby-1.9.2-p180 with gemset rails3-0-9
$ time rspec spec/views/people/_header.haml_spec.rb
......

Finished in 7.25 seconds
6 examples, 0 failures

real	1m3.135s
user	1m1.000s
sys	0m1.760s

OMGWTFBBQ

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/ o |/ \,' // _/ / /_n| V V /  / / / _/ / o \ / o \/ o |
|_,'/_/ /_//_/   |__,'|_n_,'  /_/ /_/  /___,'/___,'|_,\\

I was really annoyed about the turtle speed in 1.9.x, so I switched back to good ol' 1.8.7