#13586: ghc --make seems to leak memory -------------------------------------+------------------------------------- Reporter: MikolajKonarski | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #13379 #13564 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by MikolajKonarski): I've just made a change that lowered RAM usage a lot (it no longer trashes my computer; perhaps it uses the same total amount of RAM+swap, I didn't measure). Most of specialization was occurring originally in a single module and now I'm already specializing some of that in another module. This would indicate RAM usage of the compiler is not linear in the number of specializations occurring in a single module. Perhaps it really uses non-linear amounts of memory and perhaps it just looks through the list of specializations from the current module from time to time and so they can't just get swapped out and stay that way, but are brought to back to RAM too often, causing swap thrashing. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13586#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler