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Per-CPU variables and the realtime treePer-CPU variables and the realtime treePosted Aug 1, 2011 23:21 UTC (Mon) by marcH (subscriber, #57642)Parent article: Per-CPU variables and the realtime tree
> The key to performance on SMP systems is minimizing the sharing of data
Interesting summary of how the Shared Memory concept works generally speaking (not).
Such minimization happens "naturally" when data passing has to be explicit. The latter scales, has 10 times less bugs, and can be debugged.
SMP hardware is optimized for dangerous code (and it relies on some form of messaging at the lowest, cache-coherency level).
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