March 2nd, 2009

Do QueryProcessCycleTime and QueryThreadCycleTime include cycles spent in kernel mode?

Do QueryProcessCycleTime and QueryThreadCycleTime include cycles spent in kernel mode?

Yes, they do. They count cycles spent both in user mode and in kernel mode.

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Raymond has been involved in the evolution of Windows for more than 30 years. In 2003, he began a Web site known as The Old New Thing which has grown in popularity far beyond his wildest imagination, a development which still gives him the heebie-jeebies. The Web site spawned a book, coincidentally also titled The Old New Thing (Addison Wesley 2007). He occasionally appears on the Windows Dev Docs Twitter account to tell stories which convey no useful information.

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