On Tue, Oct 02, 2007 at 04:08:01PM -0700, Anatoly Yakovenko wrote: > i am getting some weird memory usage out of this program: > > > module Main where > > import Data.Binary > import Data.List(foldl') > > > main = do > let sum' = foldl' (+) 0 > let list::[Int] = decode $ encode $ ([1..] :: [Int]) > print $ sum' list > print "done" > > it goes up to 500M and down to 17M on windows. Its build with ghc > 6.6.1 with the latest data.binary > > Any ideas what could be causing the memory usage to jump around so much?
Only 500M? encode for lists is strict, I would have expected around 80GB usage... What does -ddump-simpl-stats say? Stefan
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