Summary of containers patches

[Don Stewart]

ivan.miljenovic:
> On 24 September 2010 14:36, Michael Snoyman <michael at snoyman.com> wrote:
> > On Fri, Sep 24, 2010 at 6:26 AM, Don Stewart <dons at galois.com> wrote:
> >> Perhaps a containers-inline fork is needed, for those who still need the speed.
> >
> > Would it be possible to use CPP to turn the INLINE flags into a
> > compile-time argument, ie:
> >
> > #ifdef INLINE
> > {-# INLINE #-}
> > #endif
> 
> Since containers ships with GHC, wouldn't this then require an extra
> flag being used when building GHC to enable this?
> 
> And then to use it, you'd have to build your own GHC rather than using
> a pre-built binary like just about everyone does...
> 
> > I'd hate to start seeing incompatible Data.Map.Maps floating around.
> 
> Agreed.  At the very least if there was a fork it would presumably
> have to be in a different module namespace to avoid namespace
> collisions, which would make the incompatability obvious.

We're talking about a 3% increase in the size of the Map, a 2% size in
the Map.hs benchmark binary, right?

For a 50% increase in Map function performance.

-- Don