GetSystemInfo是否给你的虚拟CPU总数（即超线程）？ [英] Does GetSystemInfo give you the total number of virtual CPUs (i.e. hyper-threaded)?

问题描述

GetSystemInfo将为您提供物理CPU /内核的数量，但我想知道虚拟CPU的总数。也就是说

GetSystemInfo will give you the number of physical CPUs / cores, but I would like to know the total number of virtual CPUs. I.e. on the new Nahelam chips, they have 4 cores, but appear as 8 cpus.

如果GetSystemInfo不提供这些信息，我需要什么API（我看到一个获取多个逻辑处理器的函数，但它只有Vista，我需要支持XP）？

If GetSystemInfo doesn't give this information, what API do I need (I've seen a function for getting number of logical processors, but it is Vista only. I need to support XP)?

推荐答案

GetLogicalProcessorInformation 功能
（Windows Vista，Windows XP Professional x64 Edition，Windows XP with SP3）

GetLogicalProcessorInformation Function ( Windows Vista, Windows XP Professional x64 Edition, Windows XP with SP3)

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