[Haskell-cafe] Useful IDE features -
ketil at ii.uib.no
Thu Jun 21 04:47:53 EDT 2007
On Thu, 2007-06-21 at 00:20 +0100, Claus Reinke wrote:
> >> in practice, overloading introduces overhead that might hamper
> > performance.
> > You mean overloading in general, so using type classes? Is this comparable
> > to the Java/C#/C++ overhead with virtual methods, so one extra level of
> > indirection before the function gets called? Or is it much worse?
> usually, don't worry about it. if a program really is slow, still don't
> worry about it, but find out where that program is slow. only if a
> program is slow in an area that uses overloading, see:
Is this something that could be caught by profiling? Could profiling
somehow notice what specific type a polymorphic function is called with,
and more or less explicitly suggest which functions to specialize?
(I guess I'll soon be asking for profile directed optimization :-)
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