Re: RFC: Ideal Adaptive Spinning Conditions

[Darren Hart]

Roland Dreier wrote:
>  > I'm looking at some adaptive spinning with futexes as a way to help
>  > reduce the dependence on sched_yield() to implement userspace
>  > spinlocks. Chris, I included you in the CC after reading your comments
>  > regarding sched_yield() at kernel summit and I thought you might be
>  > interested.
>
> I think you may have the wrong Chris.  Chris Wright wasn't at the most
> recent kernel summit and I do have a vague recollection of Chris Mason
> mentioning that Oracle developers found that sched_yield() performed
> better than futexes + kernel scheduling.

Oh bother, Sorry Chris! I even talked to Chris Wright about this already 
in person and he told me I probably was looking for Chris Mason, and I 
still got the last names crossed up!

--
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
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