perf.haskell.org functional again

[Boespflug, Mathieu]

Hi Joachim,

> But that’s what I am saying: By measuring dynamic instructions (using
> cachegrind), the execution time is no longer relevant.

I'm skeptical that this metric is a reliable enough proxy for actual
runtime of user programs to make tracking it and only it sufficient.
For the reasons Sven Panne gave in a previous email. But I'll be very
interested to hear your experience report over time.