gistfile1.txt

https://gist.github.com/1688857

=== 1.9.3-p0
✗ time (rails runner 'puts(1)')  
6.33s user 0.69s system 99% cpu 7.027 total

 ✗ time (rspec spec)            
  1736/1736:   100% |==========================================| Time: 00:00:34
42.32s user 1.52s system 92% cpu 47.279 total

=== 1.9.3-p0-perf

✗ time (rails runner 'puts(1)')
4.03s user 0.63s system 99% cpu 4.670 total

✗ time (rspec spec)
35.05s user 1.47s system 92% cpu 39.456 total

=== 1.9.3-p0-perf with GC tweaks

✗ time (rails runner 'puts(1)')           
3.51s user 0.67s system 99% cpu 4.198 total

✗ time (rspec spec)
27.59s user 1.51s system 90% cpu 32.145 total