bpo-41299: fix 16ms jitter in Windows threading timeouts#26568
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zooba merged 1 commit intopython:mainfrom Jun 7, 2021
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bpo-41299: fix 16ms jitter in Windows threading timeouts#26568zooba merged 1 commit intopython:mainfrom
zooba merged 1 commit intopython:mainfrom
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Thanks @lunixbochs for the PR, and @zooba for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.9. |
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Sorry @lunixbochs and @zooba, I had trouble checking out the |
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… precision time source (pythonGH-26568) (cherry picked from commit 449e6f0) Co-authored-by: Ryan Hileman <[email protected]>
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GH-26579 is a backport of this pull request to the 3.9 branch. |
zooba
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needs backport to 3.10
Contributor
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Thanks @lunixbochs for the PR, and @zooba for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10. |
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GH-26580 is a backport of this pull request to the 3.10 branch. |
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… precision time source (pythonGH-26568) (cherry picked from commit 449e6f0) Co-authored-by: Ryan Hileman <[email protected]>
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… precision time source (GH-26568) (cherry picked from commit 449e6f0) Co-authored-by: Ryan Hileman <[email protected]>
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… precision time source (GH-26568) (GH-26580) (cherry picked from commit 449e6f0) Co-authored-by: Ryan Hileman <[email protected]> Co-authored-by: Ryan Hileman <[email protected]>
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GetTickCount64() is quantized to 16ms, which makes it unsuitable for measuring short timeouts.
QueryPerformanceCounter() has been guaranteed to work since Windows XP. It should only return an error if you pass in an unaligned pointer, which should only happen if your compiler doesn't align the stack.
https://bugs.python.org/issue41299