[TickleSteve]

He is comparing a multi-threaded haskell version against a single-threaded C version???

"...There’s also a parallel version that relies on the monoidal structure of the problem a lot, and that one actually beats C"

coreutils wc is single-threaded, just checked.

[divisonby0]

  But that post left me wondering: is it possible to do better without resorting to parallel processing?
  Turns out the answer is yes.

From the introduction

[akdor1154]

Yes, your skimming was inaccurate.