Documentation
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Overview ¶
Package runtime counts the number of threads currently available to your process, without caching.
Handy to dynamically adjust load in response to changing circumstances, such as hot-plugging of cpus or a changed cpu affinity.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
func NumCPU ¶
func NumCPU() int
NumCPU queries the operating system for the count of threads available for use to this process, without caching.
Please note that you will still need to examine the underlying cpu topology, i. e. to learn what datastructure will perform the best. E. g., four available threads on a four-socket 32-core machine might span caches that are not shared.
Returns 0 on errors (extremely unlikely); try |runtime.NumCPU| in that case.
Types ¶
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