How Windows NT Detects Idle Time (101776)
The information in this article applies to:
- Microsoft Windows NT Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Workstation 4.0
This article was previously published under Q101776
Idle time is detected by computing the time spent in the idle thread.
There is one idle thread per processor. The idle threads run when
there are no executable threads. When a clock interrupt occurs, a
clock tick is attributed to the active thread. When this occurs while
the idle thread is active, the time is counted as idle time.
| Modification Type: | Minor | Last Reviewed: | 5/4/2005 |
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| Keywords: | kbenv KB101776 |
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