如何获取Windows上cpu上的实际内核数? [英] How to get the number of actual cores on the cpu on windows?

问题描述

我知道存在std :: thread :: hardware_concurrency()，但是它返回虚拟核心的数量.当针对内核的物理数量时，此算法可达到最佳效果(提高5-10％).如何在Windows上的C ++中获取该数字?

I know of the existence of std::thread::hardware_concurrency() but it returns the number of virtual cores. The algorithm this is for works at its best(5-10% better) when its targeting the physical number of cores. How could I get that number in c++ on windows?

推荐答案

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The function referenced at this MSDN page is your friend here. The example on that page prints out the number of processor cores and the number of logical processor cores.

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