Hello, On Wed, Nov 18, 2009 at 02:21:54PM +0000, Simon Marlow wrote: > [...] > is now @a -> a...@. This change helps to fix the space leak described > in \"Runtime Support for Multicore Haskell\". The problem is that > the runtime will currently retain the memory referenced by all > sparks, until they are evaluated. Hence, we must arrange to > evaluate all the sparks eventually, just in case they aren't > evaluated in parallel, so that they don't cause a space leak. This > [...]
I tried to understand the implications of this, read the relevant sections in the paper, and put together a little piece of code: > sparkN 0 f = f > sparkN !n f = (n + 42) `par` sparkN (n-1) f > > main = sparkN 100000000 $ do > performGC > getLine I compiled that with GHC 6.10.4 and expected to get a huge space leak, which didn't happen. What am I doing wrong? Thanks in advance for any tips. Regards, -- Tomáš Janoušek, a.k.a. Liskni_si, http://work.lisk.in/ _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe