#7994: Make foldl into a good consumer -------------------------------------+------------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by nomeata): Interesting: Even without the `oneShot` marker surviving the unfolding, nofib shows some extreme changes in allocations: {{{ Program Size Allocs Runtime Elapsed TotalMem -------------------------------------------------------------------------------- bernouilli +0.1% -4.2% 0.12 0.12 +0.0% fft2 +0.0% +125.4% 0.04 0.05 +0.0% gen_regexps +0.0% -9.4% 0.00 0.00 +0.0% integrate +0.1% +144.2% 0.14 0.14 +1.0% minimax +0.0% -3.8% 0.00 0.00 +0.0% simple +0.1% -7.5% 0.15 0.15 -14.7% x2n1 +0.1% -45.2% 0.00 0.00 -50.0% -------------------------------------------------------------------------------- Min -0.9% -45.2% -27.5% -27.7% -50.0% Max +0.2% +144.2% +3.1% +3.1% +100.0% Geometric Mean +0.0% +0.8% -5.9% -5.7% -0.3% }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7994#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler