[jhc] Re: [Haskell] ANNOUNCE: jhc 0.6.0 Haskell Compiler

John Meacham john at repetae.net
Mon Mar 23 04:09:15 EDT 2009

On Mon, Mar 23, 2009 at 08:40:02AM +0100, Ketil Malde wrote:
> > I had done that, actually, before even my first post, and knew that it
> > changes little to the picture, at least on my system.
> I think Bulat was right on the money here: you're essentially testing
> the efficiency of writing integers.  Presumably, JHC is better than
> GHC at specializing/inlining this library function.

Indeed, but isn't being better at specializing/inlining exactly what an
optimizing compiler should do. :)

In any case, these results are not atypical, generally, if jhc can
compile something, it ends up being 2-3x faster than ghc. After all,
C-comparable (or even superior) speed is the main goal of jhc
development. And if anything, I am more convinced than when I started
that the goal is achievable. With jhc today, C comparable performance
from numerical code is not difficult to achieve with some attention to
strictness annotations.                     


John Meacham - ⑆repetae.net⑆john⑈

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