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Q96603
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1993-06-05
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ARTICLE-ID:Q96603
TITLE :Balancing Power Conservation and Performance with POWER.EXE
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The information in this article applies to:
- Microsoft MS-DOS operating system version 6.0
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Summary:
The Power program (POWER.EXE) monitors keyboard polling and the
Application Idle interrupt to determine if a system is idle; it
monitors use of the hard disk, video functions, and MS-DOS functions
to determine if a system is busy.
POWER.EXE may incorrectly determine that your machine is idle if you
are using communication programs, computation-intensive programs, or
other programs that infrequently access the hard disk. When POWER.EXE
detects that the system is idle, it halts or slows down the CPU, which
adversely affects application performance if your machine is not truly
idle.
More Information:
With the ADV[:MIN|REG|MAX] command line switch, you can indicate
whether your higher priority is power savings or application
performance. Specifically, the ADV parameter controls the keyboard
polling detection. If application performance is suffering because of
false idle detections, you can use the ADV:MIN option to trigger fewer
false idle detections. However, this option provides minimal power
savings when your machine is idle. The ADV:MAX option provides maximum
power savings but increases the chances of false idle detections. The
default setting is ADV:REG, which balances power conservation with
performance.
Type "power" (without the quotation marks and without any parameters)
at the MS-DOS command prompt to determine the current settings.
Additional reference words: 6.00