I'm not sure that it's a good idea - migrating a thread is not a cheap
thing to do.


On Fri, Sep 18, 2009 at 09:37:05AM -0400, Oleh Derevenko wrote:
> Would not it be interesting to plan this as an enhancement for future OS releases?
> 
> > No, we won't push thread B off core 0. Thread A will be placed in the
> > READY state and wait for thread B to block or drop its priority.
> > 
> > On Fri, Sep 18, 2009 at 08:40:52AM -0400, Oleh Derevenko wrote:
> > > I'm curious how the following situation is handled by thread scheduler...
> > > Consider a multi-core system with thread A limited by runmask to be 
> > scheduled on core 0 only. If the thread A becomes ready but thread scheduler 
> > determines that core 0 is at the moment occupied with a higher priority thread
> >  B which can also be run on other cores, does it move thread B to continue 
> > execution on a different core which was idle or handling a thread with 
> > priority less than that of A to make core 0 available for thread A?
> > > 
> > > 
> > > 
> 
> 
> 
> 
> _______________________________________________
> 
> OSTech
> http://community.qnx.com/sf/go/post38271
> 

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