* Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

quoted text
> If you insist that sched_yield() is bad, I might agree, but how does 
> my patch make things worse. [...]

it puts new instructions into the hotpath.

quoted text
> [...] In my benchmarks, it has helped the sched_yield case, why is 
> that bad? [...]

I had the same cache for the rightmost task in earlier CFS (it's a 
really obvious thing) but removed it. It wasnt a bad idea, but it hurt 
the fastpath hence i removed it. Algorithms and implementations are a 
constant balancing act.

	Ingo
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