I would say "yes". I haven't had any big problems with space leaks that I
couldn't identify via the profiler, then fix.
I certainly wouldn't look at another language instead of Haskell for this
one reason, unless you really need a specific arena size, and you know
exactly what you want where, in which case you're probably writing an
application that's better suited by a language without a garbage collector,
anyway.
On Wed, Jul 3, 2013 at 3:31 PM, Emanuel Koczwara
Hi Patrick,
Dnia 2013-07-03, śro o godzinie 15:20 -0400, Patrick Mylund Nielsen pisze:
The short answer is no. This is Haskell's biggest weakness: it's difficult to predict space usage.
The longer answer is "kind of" -- you can't exactly intuit it, but the profiler is easy to use:
http://book.realworldhaskell.org/read/profiling-and-optimization.html
http://www.haskell.org/ghc/docs/7.6.2/html/users_guide/prof-heap.html
The only caveat is you have to reinstall your libraries with profiling enabled: http://stackoverflow.com/questions/1704421/cabal-not-installing-dependencies...
(If I've already installed some packages, usually I take the quick and dirty route and just set library-profiling to True, delete ~/.ghc to clear the package list, then install my package.)
Thank you for such a quick response. I know all that profiling 'stuff'. So, I will put it this way: is there a chance, that I will be able to predict performance after some time of profiling my code?
Best regards, Emanuel
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