Observation on Hadrian's relative performance re current buildsystem
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!
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