On 13-03-18 09:19 AM, Jesper Särnesjö wrote:
Interestingly, running the program in GHCi with the -fno-ghci-sandbox
flag, causes it to misbehave in the same way as when compiled:
Then perhaps to mimic default ghci in hope of getting good results:
- compile with -threaded (more candidly, link with -threaded, it does
not change code generation)
- in the program, deliberately move the work to a forkIO-thread
(I suggest forkIO instead of forkOS because I have just tried:
$ ghci
GHCi, version 7.4.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> Control.Concurrent.isCurrentThreadBound
False
$ ghci -fno-ghci-sandbox
GHCi, version 7.4.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> Control.Concurrent.isCurrentThreadBound
True
Although, perhaps it doesn't matter.)
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