Joachim Breitner wrote: > Most of these architectures do not have a native code generator (so they > are compiled via C) and are unregisterized, i.e. GHC knows nothing about > their registers. Both cause a performance penalty; I don’t know numbers. > I assume this is what Joey refers to. But maybe also that ARM machines > tend to be slower :-)
Both of course. The rare times I need to build a fairly big haskell program like git-annex on arm, it can easily take an hour or so with -O0. BTW, the other problem with Haskell on arm is that AFAIK there is no ghci, and so also no Template Haskell, and so if you're writing Real World utilities that you want to be maximally portable, this means you have to avoid using an increasing number of libraries. This rules Yesod right out; I've avoided using lenses as I'd have to write much manual boilerplate, etc. -- see shy jo
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