#9332: Memory blowing up for strict sum/strict foldl in ghci -------------------------------------+------------------------------------- Reporter: | Owner: artella.coding | Status: new Type: bug | Milestone: Priority: normal | Version: 7.8.3 Component: GHCi | Keywords: ghci, strict, Resolution: | memory Differential Revisions: | Operating System: Linux Architecture: x86_64 | Type of failure: Runtime (amd64) | performance bug Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -------------------------------------+------------------------------------- Description changed by artella.coding: Old description:
(http://stackoverflow.com/questions/24838982/memory-blowing-up-for- strict-sum-strict-foldl-in-ghci)
Suppose we have
{{{ --Test.hs import Data.List
longList::[Int] longList = [1 .. ]
result :: Int result = foldl' (+) 0 $ takeWhile (< 10000000) longList
main = do print $ result }}}
If one deletes all the ".hi" and ".o" files and then loads into ghci via :
{{{ ghci -fobject-code Test.hs }}}
then upon running "main" the memory blows up.
However if one first compiles via :
{{{ ghc Test.hs }}}
and then subsequently loads into ghci via :
{{{ ghci Test.hs }}}
then upon running "main" the memory does not blow up.
New description: (http://stackoverflow.com/questions/24838982/memory-blowing-up-for-strict- sum-strict-foldl-in-ghci) Suppose we have {{{ --Test.hs import Data.List longList::[Int] longList = [1 .. ] result :: Int result = foldl' (+) 0 $ takeWhile (< 10000000) longList main = do print $ result }}} If one deletes all the ".hi" and ".o" files and then loads into ghci via : {{{ ghci -fobject-code Test.hs }}} then upon running "main" the memory blows up. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9332#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler