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Asked: 2026-05-15T00:30:38+00:00

I am trying to find out how long does it take each thread timeslice

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I am trying to find out how long does it take each thread timeslice (quantum) in Windows but the only information that I found out is about the clock ticks being from 15 to 20ms or 20-30ms.
How can I find this information ?
I think it may vary from OS to OS, but I am not certain.
I appreciate any suggestion on this subject.

Thank you.

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1 Answer

  1. Editorial Team

    This KB article has some information on Windows 2000 Server editions:

    Currently in Windows, 3 quantums are equal to either 10 milliseconds (single processor) or 15 milliseconds (multiple-processor Pentium). This depends on the hardware abstraction layer (HAL) selected for your computer. Original Equipment Manufacturer (OEM) HALs may have a different value. Time slices that are fixed at 36 quantums are currently used when background services are selected (as you might choose in a typical server installation).

    So on a multi-processor Pentium, a quantum would be 5 ms and a time slice as long as 180 ms. That seems quite large to me, though…

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