Bill.Holler wrote:

> Hi Aubrey,
> 
> Time based sample periods were initially investigated, but they
> performed poorly with "ping pong" type workloads such as
> producer consumer etc.  The problem was it took too long to
> recognize a load change when the CPU had very short idle
> and load periods.  The current idle-rate based sampling shows
> very little to no regression on benchmarks such as libmicro.
> 
> How does the proposed change look in libmicro?

Fortunately, libmicro result looks pretty good. 
sent offline, :)

Thanks,
-Aubrey

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