#9520: Running an action twice uses much more memory than running it once -------------------------------------+------------------------------------- Reporter: snoyberg | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: Runtime | Difficulty: Unknown performance bug | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by snoyberg): As pointed out by Bryan Vicknair in the cafe thread, my first example in my previous comment does not always leak memory. In particular, I had to turn on optimizations (either `-O` or `-O2`) to get it to happen. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9520#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler