Eliminate busy-loop in Process.wait() on Linux and BSD#2706
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Eliminate busy-loop in Process.wait() on Linux and BSD#2706
Process.wait() on Linux and BSD#2706Conversation
This was referenced Jan 17, 2026
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This change has been proposed for inclusion in cPython: python/cpython#144047. |
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This change was turned into a blogpost: https://gmpy.dev/blog/2026/event-driven-process-waiting. |
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Summary
Process.wait()#2705Description
Process.wait()now usespidfd_open()+poll()instead of busy-loop polling. Requires Linux >= 5.3, Python >= 3.9.Process.wait()now useskqueue()instead of busy-loop polling.EDIT: this change has been proposed for inclusion into cPython: python/cpython#144047.
EDIT: this change was turned into a blogpost: https://gmpy.dev/blog/2026/event-driven-process-waiting.