Observation on Hadrian's relative performance re current buildsystem

Ben Gamari ben at smart-cactus.org
Fri Nov 17 18:46:02 UTC 2017

Simon Peyton Jones via ghc-devs <ghc-devs at haskell.org> writes:

> Urk! I expected Hadrian to be faster because it has more accurate dependencies. 
While this is just speculation, this might actually be one of the
reasons why the no-op case is slower: in make's case the dependency
graph is mostly static whereas in Hadrian the build system needs to
discover dependencies dynamically.

Either way, thanks for this characterization, Herbert!


- Ben

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