GHC 8.4.1-rc1 is slower on a ray-tracer project

David Feuer david.feuer at gmail.com
Wed Feb 28 15:47:57 UTC 2018


I don't see how 62 seconds rather than 60 is anything close to going off
the rails. Did I read something wrong? This sounds more like a minor wibble.

On Feb 28, 2018 10:32 AM, "Ben Gamari" <ben at well-typed.com> wrote:

> Vassil Ognyanov Keremidchiev <varosi at gmail.com> writes:
>
> > Hello!
> >
> > I have a small ray-tracer project: https://bitbucket.org/varosi/
> cgraytrace
> > From time to time I'm testing it with different GHC versions including
> ARM.
> >
> Thanks for doing these tests! I have opened #14870 to make sure we don't
> lose track of this. It would be interesting to bisect this to see where
> we went off the rails.
>
> This is a very interesting example which the Cabal file says is in the
> public domain. In principle it would be a nice case to include in nofib,
> although I suspect it has few too many dependencies.
>
> Cheers,
>
> - Ben
>
>
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