atomic operation cost

Posted by osgx on Stack Overflow See other posts from Stack Overflow or by osgx
Published on 2010-03-29T13:11:25Z Indexed on 2010/03/29 13:13 UTC
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Atomic

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Performance

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cost

Hello

What is the cost of the atomic operation? How much cycles does it consume? Will it pause other processors on SMP or NUMA, or will it block memory accesses? Will it flush reorder buffer in out-of-order CPU?

What effects will be on the cache?

Thanks.

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