Re: Poor performance of pthreads across cpu dies.
Re: Poor performance of pthreads across cpu dies.
- Subject: Re: Poor performance of pthreads across cpu dies.
- From: Andrew Gallatin <email@hidden>
- Date: Thu, 30 Aug 2007 08:23:23 -0400 (EDT)
Jonas Maebe writes:
>
> On 30 Aug 2007, at 00:55, Andrew Gallatin wrote:
>
> > I think the fundamental problem is the scheduler doesn't have a clue
> > about cpu affinity, and MacOSX is lacking any APIs or command line
> > interfaces that would allow the app or admin to give it a clue (like
> > you can on Linux, Solaris, etc).
>
> CHUD contains such an api (utilBindThreadToCPU), but it's
> undocumented and therefore only suitable for experimenting.
Cool. I didn't know that. CHUD has lots of good stuff that
isn't documented / public. I'd love to be able to figure out
the PCI config space access stuff that it has.
Drew
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