Increased memory usage with GHC 7.10.1

[Michal Terepeta]

Hi Richard,

Thanks updating the ticket! What I did was: build GHC HEAD/7.8.4 with build
flavor 'prof' then get the haskell-src-exts sources, install the
dependencies and finally add +RTS -p -RTS to the cabal file and compile it,
the resulting ghc.prof contains the profiling information.

For anyone interested about CallArity slowness, the problem is tracked in
https://ghc.haskell.org/trac/ghc/ticket/10293

Cheers,
Michal

On Wed, Apr 15, 2015 at 1:40 AM Richard Eisenberg <eir at cis.upenn.edu> wrote:

> I've pasted Michal's numbers in #9630, which seems like a good place to
> track this. Michal, would you mind fleshing out a bit precisely what you
> did to get those numbers? That would be helpful (though you've already been
> very helpful indeed in getting the data together)!
>
> Thanks,
> Richard
>
> On Apr 14, 2015, at 9:09 PM, Joachim Breitner <mail at joachim-breitner.de>
> wrote:
>
> > Hi,
> >
> > Am Dienstag, den 14.04.2015, 21:54 +0200 schrieb Michal Terepeta:
> >> On Mon, Apr 13, 2015 at 10:34 PM, Christiaan Baaij
> >> <christiaan.baaij at gmail.com> wrote:
> >>> Actually, I meant only with -fno-specialise.
> >>
> >> Done. Helps quite a bit but CallArity is still a pretty expensive.
> >
> > I’m on that, and I think I have a quite neat fix for it. I’ll report on
> > that in the trac ticket:
> > https://ghc.haskell.org/trac/ghc/ticket/10293#comment:4
> >
> > Greetings,
> > Joachim
> >
> > --
> > Joachim “nomeata” Breitner
> >  mail at joachim-breitner.de • http://www.joachim-breitner.de/
> >  Jabber: nomeata at joachim-breitner.de  • GPG-Key: 0xF0FBF51F
> >  Debian Developer: nomeata at debian.org
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