On a dualĬore machine, this affinity will effectively be ignored.
Effect of Setting Distinct Affinity Tagsįor example, an application wanting to run 2 threads on separate L2Ĭaches would set the threads with different affinity tags. Particular affinity set by assigning it the tag identifying that set.Ī thread can belong to at most one affinity set that is, it has oneĪffinity tag. Represent separate affinities-that is, threads belonging to aĭifferent set should use a separate L2 cache and hence be run on aĪn affinity set is identified by a "tag". Affinity SetĪn affinity set is a collection of threads which share memory Here is some relevant material from the webpage I linked to. OS X has supported a thread affinity API since version 10.5.
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