14 Aug
2014
14 Aug
'14
12:12 p.m.
On Thu, Aug 14, 2014 at 11:54 AM, Christian Höner zu Siederdissen < choener@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 allbery.b@gmail.com ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net