Does disabling/enabling HPET affect accurancy?

Discussion in 'MSI AfterBurner Application Development Forum' started by Terepin, Feb 18, 2022.

  1. Terepin

    Terepin Master Guru

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    I wonder if I disable HPET in Windows, does negatively affect sensor reading?
     
  2. mbk1969

    mbk1969 Ancient Guru

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    If sensor reading is configured with time repeat span comparable to the time of HPET access and if HPET is actually used in process then HPET manipulations can affect.
     
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  3. Unwinder

    Unwinder Moderator Staff Member

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    No, it doesn’t affect sensor reading accuracy. 99.9% of sensors do not depend on timer resolution at all in any form, and those which depend on timing precision (e.g. frametime measurement) do not benefit that much from extra <10 microsecond accuracy provided by HPET.
     

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