On 08/25/2011 10:00 AM, Lai Jiangshan wrote:
>I was measuring with 10 readers, not 3. It makes sense to wait more with
fewer readers.
But my box just has 4 cores(i5 760).
You cannot be always sure that readers are less than the cores. readers
> cores is exactly the case when busy waiting hurts most.
However, you're right that busy waiting should start later when there
are few readers, and especially when readers < cores.
Paolo
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