[Haskell-cafe] the last mile in haskell performance

William Yager will.yager at gmail.com
Thu Nov 12 19:38:00 UTC 2015

Also see

On Thu, Nov 12, 2015 at 11:49 AM, Alberto G. Corona <agocorona at gmail.com>

> Looking at this:
> https://downloads.haskell.org/~ghc/6.12.3/docs/html/users_guide/primitives.html
> It seems that it is impossible to manage data in Haskell within a core
> without L1 cache faults. Except for unboxed arrays of primitive types.
> Since it is impossible to have unboxed arrays of user-defined types.
> Am I right?
> This is definitively very bad for tasks that are inherently single
> threaded and in general for the image of Haskell as a practical language.
> I have more to say about that, but I would like to know first if I´m right
> and second If there is some idea to going on to permit user defined boxed
> datatypes.  Or if there is some low level trick for having it using foreign
> call and unsafeCoerce in some way,
> I know that the language ATS has unboxing a la carte....
> --
> Alberto.
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