[Haskell-cafe] Are type families really this slow, or is this a GHC bug?

[Mike Izbicki]

Thanks for pointing to that ticket.  At first after reading through it, I
thought my mistake was not using tail call recursion.  But I updated the
type families and they actually ran slower!

I've gone ahead and reported a bug:
http://ghc.haskell.org/trac/ghc/ticket/8095


On Fri, Jul 26, 2013 at 1:31 PM, Jan Stolarek <jan.stolarek at p.lodz.pl>wrote:

> I don't know much about type families, but I recall this:
> http://ghc.haskell.org/trac/ghc/ticket/5321
>
> The bug is marked as fixed, but perhaps behaviour you observed shows that
> there are other cases
> where constraqint solver is slow. I'd consider reporting this as GHC bug.
>
> Janek
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/haskell-cafe/attachments/20130726/90a085e1/attachment.htm>