[Haskell-cafe] Re: concurrent haskell: thread priorities
marlowsd at gmail.com
Fri Jan 9 04:36:07 EST 2009
Neal Alexander wrote:
> Thomas DuBuisson wrote:
>> It seems like we could get some priority based scheduling (and still
>> be slackers) if we allow marked green threads to be strictly
>> associated with a specific OS thread (forkChildIO?).
>> I think you want the GHC-only GHC.Conc.forkOnIO
> GHC.Conc.forkOnIO is helpful but doest work in this case - it doesn't
> attach them to the same OS thread.
But it does attach the thread to a particular "virtual CPU" in the GHC RTS
(we call them "capabilities"), with the intention that a virtual CPU
corresponds more or less to a real CPU core.
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