Turning on -funbox-small-strict-fields by default in GHC 7.8

[Carter Schonwald]

+1 here too :)


On Fri, Apr 26, 2013 at 2:13 PM, Austin Seipp <aseipp at pobox.com> wrote:

> +1 from me.
>
> On Fri, Apr 26, 2013 at 1:00 PM, Johan Tibell <johan.tibell at gmail.com>
> wrote:
> > On Thu, Apr 25, 2013 at 9:56 AM, Johan Tibell <johan.tibell at gmail.com>
> > wrote:
> >>
> >>
> >> Benchmark some large program that isn't carefully tuned by using
> >> strictness in just the right places (like our core libraries tend to
> be), to
> >> make sure this change doesn't hurt performance there. I nomiate GHC as
> the
> >> candidate program for this test.
> >
> >
> > Here are the nofib compile times of unmodified GHC vs GHC compiled with
> > -funbox-strict-fields:
> >
> >         -1 s.d.                -----           -3.3%
> >         +1 s.d.                -----           +2.5%
> >         Average                -----           -0.4%
> >
> > (I compiled GHC by adding the flag to GhcStage2HcOpts and GhcLibHcOpts.)
> >
> > I can't tell if this is noise or not. At least the compile times seem to
> > have gone down every so slightly.
> >
> > With these three tests out of the way, are people happy with me turning
> on
> > the flag by default for the 7.8 release?
> >
> >
> > _______________________________________________
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> >
>
>
>
> --
> Regards,
> Austin - PGP: 4096R/0x91384671
>
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