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Re: pthread library related

On Mon, May 30, 2016 at 02:19:26PM -0700, Charles Cui wrote:
> good to know atomic_inc_uint_nv is implemented using cas.

No, atomic_inc is *not* necessarily implemented using CAS. There are a
couple of different ways to do it ranging from implicit serialisation on
UP-only systems over CAS/LL-SC loops to native locked inc instructions.
For the application program, it doesn't generally matter which it is.


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