On Thu, Aug 14, 2014 at 11:54 AM, Christian Höner zu Siederdissen < choe...@tbi.univie.ac.at> wrote:
> go xs = unsafePerformIO $ do > forM_ xs $ cfun > return $ somethingUnhealthy > I wonder if this is your real problem. `unsafePerformIO` does some extra locking; the FFI specifies a function `unsafeLocalState`, which in GHC is `unsafeDupablePerformIO` which skips the extra locking. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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