Yes, the parallel IO manager is new in 7.8. Thanks for reminding me of that excessive system time issue. That's been nagging me for a while. Hopefully I can find some time in the coming days to look at this again.

-Andi

On Wed, Sep 4, 2013 at 11:42 AM, Ryan Newton <rrnewton@gmail.com> wrote:

By the way, the parallel IO manager is also new in 7.8 right? I'm not sure but I think it may have something to do with the excessive system time bug I just filed:

http://ghc.haskell.org/trac/ghc/ticket/8224

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