[Haskell-cafe] ANNOUNCE: ghc-gc-tune: a tool for analyzing the impact of GC flags

[Alexandre Termier]

Don,

Thank you for a new tool and great blog post !
I will surely use it.

You might be interested by the experiments section of a paper that we 
submitted to the Haskell Symposium with Simon Marlow and Satnam Singh : 
http://membres-liglab.imag.fr/termier/HLCM/hlcm.pdf
We studied the impact of GC parameters on runtime, on a complex parallel 
data mining program. We show that correct GC settings are really 
important for good parallel performance, with a runtimes that can be 5x 
faster.
I think this could interest everyone who want to squeeze up the most of 
their parallel Haskell programs.

Regards,

Alexandre



-- 
_____________________________________________________________
Alexandre Termier
LIG (Laboratoire d'Informatique de Grenoble)
Université Joseph Fourier
681 rue de la Passerelle
B.P. 72, 38402 Saint Martin d'Hères (FRANCE)
Phone: +33 4 76 82 72 07
Fax: +33 4 76 82 72 87
http://membres-liglab.imag.fr/termier/
_____________________________________________________________







On 06/07/2010 02:46, Don Stewart wrote:
> Inspired by a comment by Simon Marlow on Stack Overflow, about the time
> and space tradeoffs we make with garbage collection, particularly with a
> generational GCs, I wrote a small program, ghc-gc-tune, to traverse the
> garbage collector variable space, to see the relationship between
> settings and program performance. Given a program, it will show you an
> (optionally interactive) graph of how -A and -H flags to the garbage
> collector affect performance.
>
> http://donsbot.wordpress.com/2010/07/05/ghc-gc-tune-tuning-haskell-gc-settings-for-fun-and-profit/
>
> Feedback and patches welcome!
>
> -- Don
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