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headers Magicloud Magiclouds | 16 Jan 2013 09:32

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On 16/01/13 08:32, Magicloud Magiclouds wrote:
> Hi,
>    Just read a post about schedulers in erlang and go lang, which
> informed me that erlang is preemptive and go lang is cooperative.
>    So which is used by GHC? From ghc wiki about rts, if the question is
> only within haskell threads, it seems like cooperative.

GHC is pre-emptive, but see http://hackage.haskell.org/trac/ghc/ticket/367.

Cheers,
	Simon

Excerpts from Magicloud Magiclouds's message of Wed Jan 16 00:32:00 -0800 2013:
> Hi,
>   Just read a post about schedulers in erlang and go lang, which informed
> me that erlang is preemptive and go lang is cooperative.
>   So which is used by GHC? From ghc wiki about rts, if the question is only
> within haskell threads, it seems like cooperative.

Additionally, the current scheduler is round-robin with some heuristics for
when threads get to "cut the line", so we do not have priorities for threads.
I'm currently working on a patch which allows for more flexible scheduling.

Edward

What is the scheduler type of GHC?

Re: What is the scheduler type of GHC?

Re: What is the scheduler type of GHC?