线程的上下文切换(C ++ Windows) [英] Context switches of thread (C++ windows)

问题描述

如果我知道线程的HANDLE，如何知道c ++中的上下文切换"计数?

How can I know "Context Switches" count with c++, if I know HANDLE of thread?

http://i.stack.imgur.com/MYDa2.jpg

推荐答案

1. 通过使用以下一种API查询名为Thread(<process-name>/<thread-number>)/Context Switches/sec的性能计数器在C ++中访问性能数据.有关此内容的更多信息:如何以编程方式计算上下文切换?

1. By querying perofrmance counters named Thread(<process-name>/<thread-number>)/Context Switches/sec using one of the APIs, e.g. Accessing Performance Data in C++. More on this: how programmatically count context switches?

使用Windows内部以编程方式获取线程上下文开关的数量 /代码段.

Using Windows internal NtQuerySystemInformation API, see Obtaining number of thread context switches programmatically for details/code snippet.

特别是在谈论Process Explorer时，我猜是它正在从NtQuerySystemInformation中获取数据.

Talking about Process Explorer in particular, my guess would be it's taking data from NtQuerySystemInformation.

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