[Haskell-cafe] What could possibly be the reason of new GC-related problems after upgrading from ghc-7.6 to ghc-7.8.3 ?

[Carter Schonwald]

Have you done any heap profiling? Eg 7.6 vs 7.8 heap profiles?
On Nov 18, 2014 8:45 AM, "ducis" <ducis_cn at 126.com> wrote:

> Recently I revived one of my projects set aside a year ago. As I'm an
> archlinux user, the ghc version has now inevitably become 7.8.3.
> Unfortunatly, the program starts to somehow have very bad GC performance
> (less than 50% productivity) . While I don't have the statistics of the
> older versions I'm pretty sure the current version has become visually less
> responsive. And if the user performs a series of actions in quick
> succession, the heap is not garbage collected in time and overflows. If the
> user performs the same actions with longer pauses then everything is fine.
> The GC seems to have become more loose in 7.8.
> There is quite a large underdocumented pile of code so I don't think
> posting it here would help.  But can anyone give me a hint about what could
> be the reason?
>
>
>
> _______________________________________________
> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
> http://www.haskell.org/mailman/listinfo/haskell-cafe
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/haskell-cafe/attachments/20141118/34132058/attachment.html>