[wfarr]

Seeing about 25% speedup here with just the Rails 3.2 RC1.

Combined with rspec-rails 2.8.0.rc2 (which includes some Rails 3.2-related changes), I saw my test suite go from ~2.5s (Rails 3.2.0.rc1 w/ rspec 2.7.x) to ~0.43s (Rails 3.2.0.rc1 w/ rspec 2.8.0.rc2).

Ruby 1.9.3p0 across the board.

[samg_]

Just upgrading to rspec 2.8 made my test suite run 10x faster. You might have David to thank for a lot of that speed up. :)

[wfarr]

Certainly a LOT of it is rspec 2.8.

But there was a definite increase with Rails 2.3 as well. :)

[nirvdrum]

I agree. 2.3 was much faster :-)