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Fix VkPhysicalDeviceLimits::timestampPeriod calculations on Intel GPU. #1997

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billhollings
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@billhollings billhollings commented Aug 17, 2023

  • Guard against Intel returning zero values for CPU & GPU timestamps.
  • Apply lowpass filter on timestampPeriod updates, to avoid wild temporary changes, particularly at startup before GPU has been really exercised.

Fixes #1995.

- Guard against Intel returning zero values for CPU & GPU timestamps.
- Apply lowpass filter on timestampPeriod updates, to avoid wild temporary
  changes, particularly at startup before GPU has been really exercised.
@billhollings billhollings merged commit 02a8c01 into KhronosGroup:main Aug 17, 2023
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@billhollings billhollings deleted the fix-Intel-timestampPeriod branch August 17, 2023 23:01
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timestampPeriod returns nan on Intel Iris Pro with release 1.2.5
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