For these numbers, lower is better. The fastest optimiser gets a 1.00, all the others are scaled relative to it. The most red value is the slowest. ghc2 is GHC 6.8.1 with -O2. supero-* is running through the Yhc front end, then through Supero, then through GHC 6.8.1 -O2. none corresponds to the supero optimiser doing no inlining or optimisation, essentially giving GHC the whole program in one go. The other supero-* results are all based on Positive Supercompilation with homeomorphic embedding as the termination criteria and a given generalisation function. whistle is no generalisation criteria, msg is the most specific generalisation, and general is my newly created generalisation function. All the details will be in the paper I'm submitting later today.
I know some places where these results have fallen a bit flat of what they should, but even so, I'm very happy with this!