Does Task Scheduling use a lot of resources?

This is a curiosity question.
Instinctive I would say that task scheduling must use a lot of resources. Every fraction of a second the system must check the Task Schedule.
Does Task Scheduling use a lot of resources?

No it does not.
Windows uses task scheduling all the time without any impact on performance.
it is hard to find conceptual information on this, but it appears to me task scheduler does not check if there are possibly tasks that need to be executed each few miliseconds. Instead it sounds more logic taks scheduler waits for an interrupt to get
notified when conditions are met.
Think of it the other way around: mouse and keyboard also do not require much resources, allthough windows continuously needs to know whether a key is pressed or the mouse has moved. that is handled by interrupts. Aside of that, making a lookup (like checking
the current system time) does not use a lot of cpu time (even not miliseconds), given the fact modern cpu's do billions of operations per second (http://en.wikipedia.org/wiki/Instructions_per_second)
MCP/MCSA/MCTS/MCITP

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Designing a DFS Namespace
http://technet.microsoft.com/en-us/library/cc758931(v=ws.10).aspx
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Hi,
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mohegan wrote:
Hello BD,
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Does Task Scheduling use a lot of resources?

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