#14193: Add RTS flag to disable 1TB address space allocaiton -------------------------------------+------------------------------------- Reporter: nh2 | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9706, #14192 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): This seems to suggest that we should use PROT_NONE instead of MAP_NORESERVE to work around issues with overcommit: https://lwn.net/Articles/627557/ As I said over in #14192, adding a flag to disable the large address space would have a performance cost, because we'd have to check the flag in the inner loop of the GC, so I'd rather avoid that if at all possible. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14193#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler